BHEL recruitment through interview: Salary up to Rs 66,000; diploma holders can apply too
by Careers DeskBy: Careers Desk | New Delhi | Published: December 9, 2019 8:43:01 pm
BHEL recruitment: Apply at bhel.in. (Representational Image)
BHEL recruitment: The Bharat Heavy Electricals Limited (BHEL) has invited applications for the post of engineer and supervisor in the civil engineering domain. A total of 23 posts are to be filled by this recruitment drive. Candidates will be hired for a two-year contract. Interested can apply at the official website, careers.bhel.in by December 21, 8 pm.
Candidates will be shortlisted on the basis on an interview. In case, the number of applications exceeds 1:10 ration (with respect to posts), a merit list based on marks obtained in education qualification will be created. Only selected candidates based on the list will be called for the personal interview.
BHEL recruitment: How to apply
Candidates also need to send the hard-copy of their online form along with experience and education qualification certificates to ‘AGM (HR), Bharat Heavy Electricals Limited, Electronics Division, P.B. No 2606, Mysore Road, Bengaluru – 560026’. The last date to submit the application form by post is December 31. Applicants will also have to pay a non-refundable fee of Rs 200 online and receipt of the payment should be sent along with other documents. Reserved category candidates and those in the PwD category are exempted from paying any fee.
BHEL recruitment: Vacancy details
Total – 23
Engineer-civil – 3
Supervisor-civil – 20
BHEL recruitment: Eligibility
Education: Candidates having a full-time diploma in civil discipline with at least 60 per cent marks can apply for the post of a supervisor while for the post of an engineer, a graduate-level degree in civil is required. The minimum marks obtained in both should be 6- per cent, however, for candidates belonging to reserved categories, minimum marks are 55 per cent.
Work experience: For the post of engineers applicants need to have two years of work experience while for the post of a supervisor, those with one year of experience can also apply.
Age: The upper age limit is capped at 33 years. Age of the applicants will be calculated as on December 1, 2019.
BHEL recruitment: Salary
Those selected for the post fo supervisors will get a monthly salary of Rs 36,850 while for the post of engineers, the salary will be Rs 66,000 per month. For both the posts, a reimbursement of premium medi-claim policy up to Rs 2 lakh will be awarded.
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Calculates the Probability Plot Correlation Coefficient (PPCC) between a continuous variable X and a specified distribution. The corresponding composite hypothesis test that was first introduced by Filliben (1975) <doi:10.1080/00401706.1975.10489279> can be performed to test whether the sample X is element of either the Normal, log-Normal, Exponential, Uniform, Cauchy, Logistic, Generalized Logistic, Gumbel (GEVI), Weibull, Generalized Extreme Value, Pearson III (Gamma 2), Mielke's Kappa, Rayleigh or Generalized Logistic Distribution. The PPCC test is performed with a fast Monte-Carlo simulation.
| Version: | 1.1 |
| Depends: | R (≥ 3.0.0) |
| Suggests: | VGAM (≥ 1.0), nortest (≥ 1.0) |
| Published: | 2018-12-03 |
| Author: | Thorsten Pohlert |
| Maintainer: | Thorsten Pohlert <thorsten.pohlert at gmx.de> |
| License: | GPL-3 |
| NeedsCompilation: | yes |
| Materials: | NEWS |
| CRAN checks: | ppcc results |
| Reference manual: | ppcc.pdf |
| Package source: | ppcc_1.1.tar.gz |
| Windows binaries: | r-devel: ppcc_1.1.zip, r-release: ppcc_1.1.zip, r-oldrel: ppcc_1.1.zip |
| OS X binaries: | r-release: ppcc_1.1.tgz, r-oldrel: ppcc_1.1.tgz |
| Old sources: | ppcc archive |
Please use the canonical form https://CRAN.R-project.org/package=ppcc to link to this page.


What is the difference between the following three syntaxes?
SELECT * FROM film JOIN film_actor ON (film.film_id = film_actor.film_id) SELECT * FROM film JOIN film_actor USING (film_id) SELECT * FROM film, film_actor WHERE film.film_id = film_actor.film_id
The difference is mostly syntactic sugar, but with a couple interesting notes.
To put names, the first two are called "ANSI-style" while the third is called "Theta-style".
Theta style
On the FROM clause, tables are listed as if with Cartesian products, and the WHERE clause specifies how the join should take place.
This is considered to be the "old" style. It is somewhat confusing to read. Consider the following query:
SELECT * FROM film, film_actor WHERE film.film_id = film_actor.film_id AND actor_id = 17 AND film.length > 120
The above lists films over 120 minutes in length, in which actor #17 plays. Never mind the results; what about the query? Being just one part of the WHERE clause, a one out of three elements in the AND expression, the join equation gets lost. It is difficult to find and isolate the terms which make for table joins as opposed to terms which filter out rows. In the above example it is still relatively easy to point out. How about a query with 5 tables and a 20 terms WHERE clause?
ANSI style: ON
With JOIN ... ON, one separates the join terms from the filtering terms. Rewriting the previous example:
SELECT * FROM film JOIN film_actor ON (film.film_id = film_actor.film_id) WHERE actor_id = 17 AND film.length > 120
It is quite clear now what belongs to what.
Note: the parenthesis are not strictly required in the ON clause. I personally like to use them: it makes for an even greater distinction between query parts. SQL syntax is such a mess!
ANSI style: USING
Is the special case where we join tables on columns of the same name, we can make a shortcut and use USING:
SELECT * FROM film JOIN film_actor USING (film_id) WHERE actor_id = 17 AND film.length > 120
This time the parenthesis are required (I'm not sure why the difference on that part).
This is mainly a nicety, less words to type, and a resulting prettified query. But also note a couple differences:
USING vs. ON
The following is valid:
SELECT film.title, film_id FROM film JOIN film_actor USING (film_id) WHERE actor_id = 17 AND film.length > 120;
But the following is not:
SELECT film.title, film_id FROM film JOIN film_actor ON (film.film_id = film_actor.film_id) WHERE actor_id = 17 AND film.length > 120; ERROR 1052 (23000): Column 'film_id' in field list is ambiguous
Since USING "knows" the film_id column is shared between both tables, it doesn't mind if we ask it without specifying an exact table. It would be the same value anyway!
ON is not as smart and requires further clarifications: which table exactly do you want?
And the above is actually the result of this interesting phenomena: when using USING, the column only appears once in the result set:
SELECT * FROM film JOIN film_actor USING (film_id) WHERE actor_id = 17 AND film.length > 120 LIMIT 1\G *************************** 1. row *************************** film_id: 96 title: BREAKING HOME description: A Beautiful Display of a Secret Agent And a Monkey who must Battle a Sumo Wrestler in An Abandoned Mine Shaft release_year: 2006 language_id: 1 original_language_id: NULL rental_duration: 4 rental_rate: 2.99 length: 169 replacement_cost: 21.99 rating: PG-13 special_features: Trailers,Commentaries last_update: 2006-02-15 05:03:42 actor_id: 17 last_update: 2006-02-15 05:05:03
But joining on ON, we get this column twice:
SELECT * FROM film JOIN film_actor ON film.film_id = film_actor.film_id WHERE actor_id = 17 AND film.length > 120 LIMIT 1\G *************************** 1. row *************************** film_id: 96 title: BREAKING HOME description: A Beautiful Display of a Secret Agent And a Monkey who must Battle a Sumo Wrestler in An Abandoned Mine Shaft release_year: 2006 language_id: 1 original_language_id: NULL rental_duration: 4 rental_rate: 2.99 length: 169 replacement_cost: 21.99 rating: PG-13 special_features: Trailers,Commentaries last_update: 2006-02-15 05:03:42 actor_id: 17 film_id: 96 last_update: 2006-02-15 05:05:03
Behind the scenes
The news is that MySQL treats all in the exact same way. With the kind help of EXPLAIN EXTENDED, we see that:
EXPLAIN EXTENDED SELECT film.title, film_id FROM film JOIN film_actor USING (film_id) WHERE actor_id = 17 AND film.length > 120\G *************************** 1. row *************************** ... 2 rows in set, 1 warning (0.00 sec<EMAIL_ADDRESS>SHOW WARNINGS\G *************************** 1. row *************************** Level: Note Code: 1003 Message: select `sakila`.`film`.`title` AS `title`,`sakila`.`film`.`film_id` AS `film_id` from `sakila`.`film` join `sakila`.`film_actor` where ( (`sakila`.`film`.`film_id` = `sakila`.`film_actor`.`film_id`) and (`sakila`.`film_actor`.`actor_id` = 17) and (`sakila`.`film`.`length` > 120) )
All queries are translated internally to theta-style.
This post only discusses inner joins. With outer joins the situation is somewhat different. Read this post for more insight.
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PART I. PARTIES, GENERAL PROVISIONS
[§634-1] Assignee; nonnegotiable chose. The assignee of any nonnegotiable chose in action, assigned in writing, may maintain thereon in the assignee's own name any action which, but for the assignment, might be maintained by the assignor; subject, however, to all equities and setoffs existing in favor of the party liable against the assignor and which existed at the time of the assignment or at any time thereafter until notice thereof was given to the party liable, except as otherwise provided. [L 1898, c 7, §1; RL 1925, §2361; RL 1935, §4045; RL 1945, §10037; RL 1955, §230-7; HRS §634-31; am L 1972, c 89, §2A(a); ren HRS §634-1; gen ch 1985]
Rules of Court
Real party in interest, see HRCP rule 17(a); DCRCP rule 17(a). Setoff, see HRCP rule 13; DCRCP rule 13.
Case Notes
Cases prior to adoption of the Hawaii Rules of Civil Procedure.
Requiring joinder as coplaintiff on breach of contract. 5 H. 430 (1885).
Set off against assignee. 11 H. 764 (1899).
Assignee of judgment may sue in own name. 20 H. 138 (1910), aff'd 226 U.S. 462 (1913).
Endorsee for collection may sue in own name. 29 H. 434 (1926).
May sue in assignor's or assignee's name, under common law rule. 30 H. 959 (1929).
Principal and agent. 31 H. 12 (1929).
Legality of assignment. 34 H. 754 (1947).
Cited: 20 H. 146, 149 (1910); 27 H. 642, 645 (1923); 36 H. 676, 680 (1944).


State of a Getline Loan.
Loan is waiting for Collateral to be sent by owner.
Loan has been paid back or has defaulted.
Loan is raising funds by investors.
Loan is being paid back by liege.
Generated using TypeDoc
State of a Getline Loan.


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Nautical
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Kalman filter struct and constant definitions. More...
Go to the source code of this file.
Data Structures | |
| struct | Kalman |
| Struct to make using the Kalman filter easier. More... | |
Variables | |
| static const int | N = 6 |
| static const int | M = 2 |
| static float | Qk [N *N] |
| static float | Hk [M *N] |
| static float | Rk [M *M] |
Kalman filter struct and constant definitions.
The state of the Kalman filter can be described by the following vector: [X VX AX Y VY AY]
The main measurement instrument used for this Kalman filter is a DVL, which returns VX and VY. The exact variances of the DVL are on the spreadsheet.
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static |
Hk maps the predicted state to measurements.
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static |
N represents the number of elements in the state, while M represents the number of sensors.
Qk describes how accurate the model is. The variance of each element of the should be along the main diagonal of the matrix.
|
static |
Rk describes the precision of each measurement.


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Typography
Headings
All HTML headings,

through

, are available.
h1. Bootstrap heading Semibold 2.19rem (35px)
h2. Bootstrap heading Semibold 1.75rem (28px)
h3. Bootstrap heading Semibold 1.53rem (24.5px)
h4. Bootstrap heading Semibold 1.31rem (21px)
h5. Bootstrap heading Semibold 1.09rem (17.5px)
h6. Bootstrap heading Semibold .875rem (14px)
Inline text elements
Styling for common inline HTML5 elements.
You can use the mark tag to highlight text.
This line of text is meant to be treated as deleted text.
This line of text is meant to be treated as no longer accurate.
This line of text is meant to be treated as an addition to the document.
This line of text will render as underlined
This line of text is meant to be treated as fine print.
This line rendered as bold text.
This line rendered as italicized text.
Unstyled List
Remove the default list-style
and left margin on list
items (immediate children only). This only applies to immediate
children list items, meaning you will need to add the class
for any nested lists as well.
- Integer molestie lorem at massa
- Nulla volutpat aliquam velit
- Phasellus iaculis neque
- Purus sodales ultricies
- Vestibulum laoreet porttitor sem
- Faucibus porta lacus fringilla vel
Display headings
Traditional heading elements are designed to work best in the meat of your page content.
Display 1
Display 2
Display 3
Display 4
Blockquotes
For quoting blocks of content from
another source within your document. Wrap

around any HTML as the quote.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.
Inline List
Remove a list’s bullets and apply some
light margin
with a combination
of two classes, .list-inline
and
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.
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- Phasellus iaculis
- Nulla volutpat
Description list alignment
Align terms and descriptions
horizontally by using our grid system’s predefined classes (or semantic
mixins). For longer terms, you can optionally add a .text-truncate
class to
truncate the text with an ellipsis.
- Description lists
- A description list is perfect for defining terms.
- Euismod
- Vestibulum id ligula porta felis euismod semper eget lacinia odio sem nec elit.
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- Nesting
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- Nested definition list
- Aenean posuere, tortor sed cursus feugiat, nunc augue blandit nunc.


Creating Basic Tabs with Bootstrap
Adding icons to tabs
Creating basic pills with Bootstrap
Adding Icons to Pills Nav
Stacked Pills Nav
Bootstrap Tabs and Pills Nav with Dropdown Menus
Creating pills with dropdowns
Justified Tabs and Pills
Disable Links inside Nav Components
Tabs with Disable Links
Pills with Disable Links


Provides the entry point for the vtkContextScene to be rendered in a vtkRenderer.
More...
#include <btkVTKContextActor.h>
Provides the entry point for the vtkContextScene to be rendered in a vtkRenderer.
Note: This is a copy of the class vtkContextActor but containing the fix for the issue #13199 (http://www.vtk.org/Bug/view.php?id=13199).
| btk::VTKContextActor::~VTKContextActor |
( |
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virtual |
| btk::VTKContextActor::VTKContextActor |
( |
| ) |
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protected |
| vtkContext2D * btk::VTKContextActor::GetContext |
( |
| ) |
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Returns the context object used by this actor.
| vtkContextScene * btk::VTKContextActor::GetScene |
( |
| ) |
|
Returns the scene object used by this actor.
| void btk::VTKContextActor::Initialize |
( |
vtkViewport * |
viewport | ) |
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protectedvirtual |
Initialize the actor - right now we just decide which device to initialize.
| void btk::VTKContextActor::PrintSelf |
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ostream & |
os, |
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vtkIndent |
indent |
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) |
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Print the content of the object in the given output stream os.
| void btk::VTKContextActor::ReleaseGraphicsResources |
( |
vtkWindow * |
window | ) |
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virtual |
Release any graphics resources that are being consumed by this actor. The parameter window could be used to determine which graphic resources to release.
| int btk::VTKContextActor::RenderOverlay |
( |
vtkViewport * |
viewport | ) |
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virtual |
Renders an actor2D's property and then it's mapper.
| void btk::VTKContextActor::SetContext |
( |
vtkContext2D * |
context | ) |
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virtual |
Sets the context object for this actor.
| void btk::VTKContextActor::SetScene |
( |
vtkContextScene * |
scene | ) |
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virtual |
Sets the scene object for this actor.
| btk::VTKContextActor::Context |
|
protected |
To draw 2D primitives to a graphical context.
| btk::VTKContextActor::Initialized |
|
protected |
Flag to know if this actor was initialized or not.
| btk::VTKContextActor::Scene |
|
protected |


I had wanted to try Salvia for a long time. I had read stuff about it and heard reports from friends and it seemed unbelievably interesting to me. I had never previously tried any hallucinogens and didn't fully understand how intense the trip would be. I thought that it would be a lot of pretty pictures coming at me and playing like a movie in front of me. This was not the case, however.
My friends and I picked up a gram of 20x extract and got ready. We put a little piece of hash in the bottom of the bowl of my friends pipe to keep the Salvia from falling through, and put about .4 of a gram of salvia on top of that. “You have to smoke all of that in one hoot.” My friend told me.
My friend went before me, and after seeing him on it I got shaky and very nervous. We refilled the pipe and it was my turn. I took a lot of deep breaths and gave my two friends hugs before I took my hoot. I kept the lighter on the salvia for the entire duration of the hoot. I sucked in until I felt my throat start to burn, held it in for about 20-30 seconds, coughed, stood up, noticed my body felt like it was tingling all over, and stumbled back down onto the bed. This was the last thing I remember before I started my journey.
I looked up at my friends, whose heads became the sails on two sailboats that were on a chalkboard. The chalkboard tilted and I instantly remembered seeing that exact same thing before. I forgot that I took the Salvia and thought for a moment that I had gotten high off the Salvia smoke in the room. I was so out of it by now that I didn’t know what I was doing. Apparently I yelled “I took the salvia!” and lunged toward my friend’s hand, where the pipe was, grabbed the pipe and started waving it around. I remember trying to see if there was any Salvia left in the bowl.
All of a sudden I was a piece of a letter on the page of a book.  Then I was a little piece of metal hanging off of a long strip of metal. These visions are very vague in my memory, but the next part is very vivid.
I became a piece of rubber and I was trying to rip myself apart from the other pieces of rubber that I was attached to. I then realized that I couldn’t because I was attached to a living thing and if I ripped apart it would hurt. I felt trapped, and then it seemed like all of the other pieces of rubber on the thing were trying to rip off too, and they were succeeding but I still couldn’t.  All of a sudden I could see the room again, and my two friends, but I couldn’t recognize them, and I felt as though I was attached to the wall and couldn’t get free.
One of my friends tilted his head to the left and asked me if I was okay. I said no and then looked at him again and he was up on the wall, his body was shaped like some kind of weird cartoon bug or something and his head was huge. My other friend’s head was attached to the wall opposite the one I was “attached” to, and there were swirling colors all around.
Then I was sitting on the floor, my two friends were also sitting on the floor in front of me, and every time I looked at something I would see a picture fly out of it. I kept seeing indescribable little movements and pictures in the room, all of which I recognized, but couldn’t remember where from, and I remember thinking that it seemed like every little thing and every person, animal, plant, everything, was really a piece of something else in another reality.
My first Salvia Divinorum trip was the most intense thing I ever experienced, and it was so out of this world that I don’t even think that I have explained it to even half of its actual magnitude. I look forward to trying it again.
Experience Reports are the writings and opinions of the individual authors who submit them.
Some of the activities described are dangerous and/or illegal and none are recommended by Erowid.


All samples are using Ink.requireModules
, please read how to use it at Ink.requireModules section
| Method name | Description |
|---|---|
| new ImageQuery(selector, [options]) | Constructor |
| .getQuerySrc(query) | Gets viewport width |
selector
Selector or elementoptions
Options objectoptions.src
A template string in which '{:width}' or '{:label}' will be expanded into the corresponding properties of the `query` object, or a function which takes the query object and should return a src string, for more flexibility.options.retina
String or Callback function (that returns a string) with the path to be used to get RETINA specific images.options.queries
Array of queries. Each query object contains the following properties:options.queries.label
Label of the query. Ex. 'small'.options.queries.width
Min-width to use this query.options.queries.src
If you don't want to specify a "string template" in options.src, you can also specify an image source in each query by setting this option.options.onLoad
A function to be attached to the image 'load' event. Called when an image is loaded into this img (occurs several times because the user may resize the page, causing the image's "load" event to be called several times).Gets viewport width
query
A query object, comprised of:query.width
The minimum viewport width in which this query is active.query.label
The label for this query. Used in the template strings.query.src
this.getOption('src')Exactly the same as `options-src`. If you pass this, `options.src` will be overridden. A template string in which '{:width}' or '{:label}' will be expanded into the corresponding properties of the `query` object, or a function which takes the query object and should return a src string, for more flexibility.


STAR WARS: EPISODE I - THE PHANTOM MENACE (20th Century Fox) Starring: Liam Neeson, Ewan McGregor, Jake Lloyd, Natalie Portman, Ian McDiarmid, Ray Park, Anthony Daniels, Kenny Baker, Frank Oz, Ahmet Best. Screenplay: George Lucas. Producer: Rick McCallum. Director: George Lucas. MPAA Rating: PG (violence) Running Time: 131 minutes. Reviewed by Scott Renshaw.
Contrary to conventional wisdom, The Force is not a mystical, all-encompassing power; it's what George Lucas must be feeling in the middle of his chest as he revives the STAR WARS saga after a 16-year hiatus. In one sense, of course, EPISODE I - THE PHANTOM MENACE is the ultimate can't-lose proposition. It's also the ultimate can't-win proposition, a monolith nearly impossible to separate from the ridiculous expectations. Curiously, critics face a similar predicament. A rave could be interpreted as succumbing to the hype, while a jeer could be viewed as anti-hype backlash. How do you talk about a film that virtually demands the creation of a new set of rules -- for the film-maker, for the media, for the audience?
I can only explain my reaction to THE PHANTOM MENACE this way: when John Williams' now-iconic fanfare burst forth over the sound system, I was 9 years old again, shivering with anticipation at being transported by Lucas' singular mythology. And transported I was...into a hard drive. There's no other way to explain the chilly experience of THE PHANTOM MENACE, which opens with Jedi Knights Qui-Gon Jinn (Liam Neeson) and his apprentice Obi-Wan Kenobi (Ewan McGregor) on a diplomatic mission to resolve a dispute between the Trade Federation and the planet Naboo. When it becomes clear that the Federation's trade blockade is part of a more sinister plan, the Jedis flee Naboo with the planet's Queen Amidala (Natalie Portman) and amphibian Gungan Jar-Jar Binks (Ahmet Best). A repair stop on the planet Tatooine introduces us to young Anakin Skywalker (Jake Lloyd), a slave boy whom Qui-Gon believes is the Chosen One destined to bring balance to the Force.
There are plenty of other plot fragments floating around in THE PHANTOM MENACE -- most of them involving political machinations -- but the ho-hum plotting may actually be the least of its flaws. Quite simply, this is a film devoid of personality, filled with characters who never inspire affection or close identification. STAR WARS, for all its dazzle, had three fundamentally solid characters at its core: conflicted hero-on-a-quest Luke; tough, no-nonsense Leia; and lovable rogue Han. THE PHANTOM MENACE counters with the stoic Qui-Gon, the slightly-less-stoic Obi-Wan, and the stoic-in-a-slightly-different-way Amidala. Meanwhile, young Jake Lloyd brings little gravity to the character which will become the crux of this universe, and Jar-Jar's brand of comic relief is intensely grating. It's almost funny to hear Qui-Gon described as rebellious, since he seems about as capable of a rash act as he is of cracking a smile. There may be heroes in THE PHANTOM MENACE, but there's really no one to like.
And, for that matter, there's really no one to hate. Darth Sidious, the Sith who will be Emperor, is the primary villain of the piece, yet he only appears in the form of a jittery transmission, hardly the stuff of genuine menace. Darth Maul, meanwhile -- he of the marketing-friendly Day-Glo visage -- is effective considering his limited screen time, yet he's really a glorified henchman for all his double-bladed lightsaber tricks. THE PHANTOM MENACE is missing that unifying, ultimately hissable bad guy that makes for great archetypal conflict.
What we do have is a triumph of art direction and technology which creates alien worlds like no film ever has before. The streets of a Tatooine town bustle with creatures both familiar and unfamiliar; the megalopolis of Coruscant, capital of the Republic, features eye-popping architecture and the kind of traffic flow of which civil engineering legends are made. Though the pacing of the opening hour is on the pokey side -- which places it in good company with the first STAR WARS -- Lucas eventually produces a few dynamic set pieces like the desert pod race. When THE PHANTOM MENACE goes for pure visual satisfaction, it usually delivers.
Ultimately, though, there's a more basic satisfaction the film lacks. Its structure and imagery are reminiscent both of STAR WARS and RETURN OF THE JEDI -- particularly the latter in its three-ring climax -- but it doesn't even achieve JEDI's level of old-fashioned fantasy fulfillment. When Gungans and battle droids clash on the fields of Naboo, every last figure a digital concoction, you begin to sense the absence of a primally appealing human story in this blockbuster. It may be true that it will feel more complete a few years hence when its backstory has turned into relationships between Obi-Wan and Anakin, between Anakin and Amidala. For now, all that remains is spectacle without resonance, without magic, without even all that much fun if you happen to be over the age of 10. In this era of computer wizardry, Lucas has sapped his story of the thing that made it a phenomenon in the first place. The result is an adventure that feels...well, Forced.
On the Renshaw scale of 0 to 10 manic episodes: 5.
Visit Scott Renshaw's Screening Room http://www.inconnect.com/~renshaw/ *** Subscribe to receive new reviews directly by email! See the Screening Room for details, or reply to this message with subject "Subscribe".
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Testimonial of Cookie Eating Family
Pat's Salmon Cookies literally saved our daugher's life. Prior to finding this delectible treat, our daughter was bullied, teased, and did poorly in all school subjects. Her favorite snack was paste, because she said it smelled like mint. Now, after only a week of eating only Pat's Salmon Cookies for every meal of the day, our daughter has blossomed. She became the most popular kid in school, skipped three grades of math, and this has transformed our family. Just look at us. We are so happy. She plays soccer so well that the Seattle Reign offered her a contract, andt she is only 11 years old!


With an excellent quality of life, immense post-study work, and immigration opportunities no doubt Canada stands out as a popular country for both International and Indian students.In 2017, Canada experienced almost 500,000 international students studying at all levels in the country; which explains its popularity across the globe.
Tuition fee in Canada, when compared to universities in the US and UK, is fairly cheaper. Your expenditure on tuition fee depends on the institution you opt for. To cover this, you will need approximately between CAD 7,000 and CAD 29,000 a year.
Courses in humanities, education and arts are a bit cheaper, while courses like medicine and engineering are likely to be more expensive. If you wish to study at a Master’s program, the tuition fee is typically higher and the costs vary depending on the program. As with most other countries, MBA programs are often the most expensive.
Many Canadian universities have their own list of scholarships for Indian students. These merit-based scholarships to international students help them fund their studies is usually based on good academic standing.
Canada welcomes more than 350,000 students from foreign jurisdictions each year. If you intend to study at a Canadian educational institution, most foreign nationals must apply for a study permit. A study permit, once issued, allows a foreign national to study in Canada at an approved institute for the duration of the specified course or program.
As per the current latest news Canada’s private sector job vacancy rate reached another record in the first three months of 2019.
The federation reports a total of 435,000 jobs sat vacant for at least four months across Canada during the first quarter of 2019, which amounted to a job vacancy rate of 3.3 per cent.
Canada saw a record 106,500 jobs added in April and another 27,700 jobs added in May, and unemployment in the country is at its lowest point in more than 40 years.
Quebec, British Columbia and Ontario had the highest job vacancy rates among Canada's provinces.
It is possible to work in Canada, while you are a student, under any Immigration, Refugees and Citizenship Canada (IRCC) work programs for students. A student may be able to work in Canada during the course of study under the following categories:


Strictly's Alex Scott breaks silence over wanting to keep Kevin Clifton as partner over Neil Jones
Professional dancer Neil Jones, 37, reunited with the former Lioness, 35, after he missed two live shows because of an injury
by James Rodger, https://www.facebook.com/jamesrodgerjournalistStrictly Come Dancing star Alex Scott has denied wanting to continue her partnership with stand-in Kevin Clifton.
Professional dancer Neil Jones, 37, reunited with the former Lioness, 35, after he missed two live shows because of an injury.
A source told The Sun On Sunday that Scott was "fuming" after finding out she would be back with Jones at the last-minute.
She had been "hopeful that she would be allowed some sort of consistency, and have Kevin on the night", the source was quoted as saying.
But the former England and Arsenal player denied the story, writing on Twitter: "Just woke up to this news...
"This is not the case at all ha. I think you can see from the joy on our face last night as we danced our jive."
She added that "£teamred is very happy to back together."
She told her followers: "Got to admit it though, I do feel like the luckiest girl alive.
"Not everyone gets to dance with two amazing people on Strictly. Who would ever want to complain about that, lol Kevin Clifton is part of £teamred."
Jones added: "I started laughing when I read it this morning....
"Anyway who cares, we both had a great time and enjoyed every moment of that jive and that's all that matters £teamred."
The pair performed a jive on Saturday night's show, with Jones telling the judges: "It's good to be back."
Motsi Mabuse sparked an awkward moment when she told the pair after their dance that "it's like seeing a new couple that we (already) knew. But then somebody had an affair... and now the light is back on".
Viewers commented that the joke was awkward, coming after Jones' then wife Katya hit the headlines for kissing her celebrity partner, comedian Seann Walsh, on the street during the last series of the show.
The couple announced their split earlier this year, suggesting their marriage had become more of a friendship than a romance.


I'm a huge fan of great quality Haitian coffee! All of Haiti’s coffee is Arabica, the high-quality bean used in gourmet coffees. So I rotate between Café Lux and Café Rebo.


public class ECFpUtility
extends java.lang.Object
| Modifier and Type | Class and Description |
|---|---|
class |
ECFpUtility.FpPoint |
| Constructor and Description |
|---|
ECFpUtility()
Default constructor.
|
| Modifier and Type | Method and Description |
|---|---|
int |
calcK(java.math.BigInteger p)
This function calculates k, the maximum length in bytes of a string to be converted to a Group Element of this group.
|
GroupParams |
checkAndCreateInitParams(java.util.Properties ecProperties,
java.lang.String curveName)
This function receives the name of a curve and some possible properties and it checks that curve is actually a curve over the Fp field.
|
boolean |
checkCurveMembership(ECFpGroupParams params,
java.math.BigInteger x,
java.math.BigInteger y)
Checks if the given x and y represent a valid point on the given curve,
i.e.
|
boolean |
checkSubGroupMembership(DlogECFp curve,
ECFpPoint point)
checks if the given point is in the given dlog group with the q prime order.
|
ECFpUtility.FpPoint |
findPointRepresentedByByteArray(ECFpGroupParams params,
byte[] binaryString,
int k)
This function receives any string of size up to k bytes (as returned by CalcK), finds the coordinates of the point that is the encoding of this binary string.
|
java.math.BigInteger |
findYInCurveEquationForX(ECFpGroupParams params,
java.math.BigInteger x)
This function finds the y coordinate of a point in the curve for a given x, if it exists.
|
java.lang.String |
getGroupType() |
byte[] |
getKLeastSignBytes(java.math.BigInteger x,
int k)
This function returns the k least significant bytes of the number x
|
byte[] |
mapAnyGroupElementToByteArray(java.math.BigInteger x,
java.math.BigInteger y)
This function maps any group element to a byte array.
|
public boolean checkCurveMembership(ECFpGroupParams params, java.math.BigInteger x, java.math.BigInteger y)
params
- elliptic curve over Fp parametersx
- coefficient of the pointy
- coefficient of the pointpublic java.math.BigInteger findYInCurveEquationForX(ECFpGroupParams params, java.math.BigInteger x)
params
- the parameters of the groupx
- public ECFpUtility.FpPoint findPointRepresentedByByteArray(ECFpGroupParams params, byte[] binaryString, int k)
binaryString
- java.lang.IndexOutOfBoundsException
- if the length of the binary array to encode is longer than kpublic boolean checkSubGroupMembership(DlogECFp curve, ECFpPoint point)
curve
- point
- public byte[] mapAnyGroupElementToByteArray(java.math.BigInteger x, java.math.BigInteger y)
that is, it is not possible to re-construct the original group element from the resulting byte array.
x
- coordinate of a point in the curve (this function does not check for membership)y
- coordinate of a point in the curve (this function does not check for membership)public int calcK(java.math.BigInteger p)
p
- public byte[] getKLeastSignBytes(java.math.BigInteger x, int k)
x
- k
- public GroupParams checkAndCreateInitParams(java.util.Properties ecProperties, java.lang.String curveName)
ecProperties
- curveName
- java.lang.IllegalArgumentException
- if curveName is not a curve over Fp field and doesn't match the DlogGroup type.public java.lang.String getGroupType()


I hold links
two below
one below
one below
absolute at the root
relative at the root
I hold broken links
broken same level
broken one below
broken two below
broken absolute
broken one above


Projects
CMMI Club:
Pocket guide
Team FBO:
Crowdsource federal business opportunities
Thank The Teacher:
Crowdfund thank-you gifts for teachers
Shop July Twenty Two:
Botique retail
The Basketball Hacker:
Just in case your baller doesn’t go pro
Presentations
Learning Ruby:
Pivot from suit to nerd
Demonstration Property
: Environmentally responsible residential landscape
Watershed awareness article
: The solution to pollution is
not
dilution
Meet the Geist Watershed:
Watershed awareness public outreach
Blog
01 Aug 2015 »
The Basketball Hacker
03 Jul 2015 »
How to Fix Geist Reservoir
21 Jan 2015 »
Ten Ruby Things I Learned This Week
08 Jan 2015 »
Refactoring Fizz Buzz
25 Sep 2014 »
Refactoring a Rake Task
20 Sep 2014 »
How to Learn
25 Aug 2014 »
AWS GovCloud Disrupts Everything Federal
21 Aug 2014 »
Rails 4 Association has_many, through
20 Mar 2014 »
Tips for Future Me


| Products | Actions | ||
|---|---|---|---|
| There is no order. | |||
|
{{product.name}} |
| Username | Role | Actions | |
|---|---|---|---|
| There is no user. | |||
| {{user.username}} | {{user.email}} | {{user.role}} |
| Name | Actions | ||
|---|---|---|---|
| There is no category. | |||
| {{category.name}} |
| Name | Price | Category | Actions |
|---|---|---|---|
| There is no product. | |||
| {{product.name}} | {{product.price}} | {{product.category.name}} |


mkdir anewproject
cd anewproject
git init
or Naked, no local files, and with group UNIX permissions for headless use
git --bare init --shared
And once pushed to another location, you'll want it tracked, which can be done manually via editing the .git/config file
or by issuing these commands:
git config branch.master.remote origin
git config branch.master.merge refs/heads/master
Free hosting for small private Git repositories can be found at a number of sites on the web. A canonical list is maintained at the official Git site.
The one we'll use today is GitFarm, which is hosted on the Google App Engine.
I've already set up a repository for us to try:
git clone<EMAIL_ADDRESS>password: password
git clone http://students11:password@gitfarm.appspot.com/git/students11.git


Jest uses “matchers” to let you test values in different ways. This
document will introduce some commonly used matchers. For the full list,
see the expect
API doc.
The simplest way to test a value is with exact equality.
In this code, expect(2 + 2)
returns an “expectation” object.
You typically won’t do much with these expectation objects except call
matchers on them. In this code, .toBe(4)
is the matcher. When
Jest runs, it tracks all the failing matchers so that it can print out
nice error messages for you.
toBe
uses Object.is
to test exact equality. If
you want to check the value of an object, use
toEqual
instead:
test('object assignment', () => {
const data = {one: 1};
data['two'] = 2;
expect(data).toEqual({one: 1, two: 2});
});
toEqual
recursively checks every field of an object or array.
You can also test for the opposite of a matcher:
test('adding positive numbers is not zero', () => {
for (let a = 1; a < 10; a++) {
for (let b = 1; b < 10; b++) {
expect(a + b).not.toBe(0);
}
}
});
In tests you sometimes need to distinguish between undefined
,
null
, and false
, but you sometimes do not want
to treat these differently. Jest contains helpers that let you be explicit
about what you want.
toBeNull
matches only null
toBeUndefined
matches only undefined
toBeDefined
is the opposite of toBeUndefined
toBeTruthy
matches anything that an
if
statement treats as true
toBeFalsy
matches anything that an
if
statement treats as false
For example:
test('null', () => {
const n = null;
expect(n).toBeNull();
expect(n).toBeDefined();
expect(n).not.toBeUndefined();
expect(n).not.toBeTruthy();
expect(n).toBeFalsy();
});
test('zero', () => {
const z = 0;
expect(z).not.toBeNull();
expect(z).toBeDefined();
expect(z).not.toBeUndefined();
expect(z).not.toBeTruthy();
expect(z).toBeFalsy();
});
You should use the matcher that most precisely corresponds to what you want your code to be doing.
Most ways of comparing numbers have matcher equivalents.
test('two plus two', () => {
const value = 2 + 2;
expect(value).toBeGreaterThan(3);
expect(value).toBeGreaterThanOrEqual(3.5);
expect(value).toBeLessThan(5);
expect(value).toBeLessThanOrEqual(4.5);
// toBe and toEqual are equivalent for numbers
expect(value).toBe(4);
expect(value).toEqual(4);
});
For floating point equality, use toBeCloseTo
instead of
toEqual
, because you don’t want a test to depend on a tiny
rounding error.
test('adding floating point numbers', () => {
const value = 0.1 + 0.2;
//expect(value).toBe(0.3); This won't work because of rounding error
expect(value).toBeCloseTo(0.3); // This works.
});
You can check strings against regular expressions with
toMatch
:
test('there is no I in team', () => {
expect('team').not.toMatch(/I/);
});
test('but there is a "stop" in Christoph', () => {
expect('Christoph').toMatch(/stop/);
});
You can check if an array or iterable contains a particular item using
toContain
:
const shoppingList = [
'diapers',
'kleenex',
'trash bags',
'paper towels',
'beer',
];
test('the shopping list has beer on it', () => {
expect(shoppingList).toContain('beer');
expect(new Set(shoppingList)).toContain('beer');
});
If you want to test that a particular function throws an error when it’s
called, use toThrow
.
function compileAndroidCode() {
throw new ConfigError('you are using the wrong JDK');
}
test('compiling android goes as expected', () => {
expect(compileAndroidCode).toThrow();
expect(compileAndroidCode).toThrow(ConfigError);
// You can also use the exact error message or a regexp
expect(compileAndroidCode).toThrow('you are using the wrong JDK');
expect(compileAndroidCode).toThrow(/JDK/);
});
This is just a taste. For a complete list of matchers, check out the reference docs.
Once you’ve learned about the matchers that are available, a good next step is to check out how Jest lets you test asynchronous code.


[1]
'' we understand and are aware of the fourth floor.
[2]
'' we understand and are aware before offering or assigning rooms on ground/first floor.


There are so many options! First off, thank you so much for wanting to participate in this project. This collection of resources couldn't exist without the help of people like you. Check out our Submission Guidelines if this is your first time. Protect Black Lives is an open source project.  If you aren't a developer, you can still help out!
Want to help, but you don't code? No problem! Use this form to submit your resource. Please allow at least 24 hours for your submission to be processed and added.
If you don't have a resource but you just want to help, feel free to submit a pull request for any bugs and overall suggestions. Even if it's something as simple as a typo, let us know!
If you have a resource you would like to add, the approach is pretty straight forward! Once you're all set up and ready to submit a pull request to the project repository, follow along with these instructions.
You're done! Submit your pull request and wait for approval.
Generally, most submissions will be accepted as long as they are not hate content, sent with malicious intent and/or plagiarized.
In light of recent events involving peaceful protestors' photos being spread with malicious intent, we take extra precaution to protect them. Resources that include details regarding location of protests and meetups will not be shared because it's been deemed unsafe. If you would like to read more, check out the resources in the Protestor Tech section.


| Opcode/Instruction | Op/En | 64/32 bit Mode Support | CPUID Feature Flag | Description |
|---|---|---|---|---|
| EAX = 07H ENCLS[ELDB] | IR | V/V | SGX1 | This leaf function loads, verifies an EPC page and marks the page as blocked. |
| EAX = 08H ENCLS[ELDU] | IR | V/V | SGX1 | This leaf function loads, verifies an EPC page and marks the page as unblocked. |
| EAX = 12H ENCLS[ELDBC] | IR | V/V | EAX[5] | This leaf function behaves lie ELDB but with improved conflict handling for oversubscription. |
| EAX = 13H ENCLS[ELDBC] | IR | V/V | EAX[5] | This leaf function behaves like ELDU but with improved conflict handling for oversubscription. |
| Op/En | EAX | RBX | RCX | RDX | |
| IR | ELDB/ELDU (In) | Return error code (Out) | Address of the PAGEINFO (In) | Address of the EPC page (In) | Address of the version-array slot (In) |
This leaf function copies a page from regular main memory to the EPC. As part of the copying process, the page is cryptographically authenticated and decrypted. This instruction can only be executed when current privilege level is 0.
The ELDB leaf function sets the BLOCK bit in the EPCM entry for the destination page in the EPC after copying. The ELDU leaf function clears the BLOCK bit in the EPCM entry for the destination page in the EPC after copying.
RBX contains the effective address of a PAGEINFO structure; RCX contains the effective address of the destination EPC page; RDX holds the effective address of the version array slot that holds the version of the page.
The ELDBC/ELDUC leafs are very similar to ELDB and ELDU. They provide an error code on the concurrency conflict for any of the pages which need to acquire a lock. These include the destination, SECS, and VA slot.
The table below provides additional information on the memory parameter of ELDB/ELDU leaf functions.
| PAGEINFO | PAGEINFO.SRCPGE | PAGEINFO.PCMD | PAGEINFO.SECS | EPCPAGE | Version-Array Slot |
| Non-enclave read access | Non-enclave read access | Non-enclave read access | Enclave read/write access | Read/Write access permitted by Enclave | Read/Write access permitted by Enclave |
The error codes are:
| Error Code (see Table 40-4) | Description |
|---|---|
| No Error | ELDB/ELDU successful. |
| SGX_MAC_COMPARE_FAIL | If the MAC check fails. |
| Leaf | Parameter | Base Concurrency Restrictions | ||
|---|---|---|---|---|
| Access | On Conflict | SGX_CONFLICT VM Exit Qualification | ||
| ELDB/ELDU/ | Target [DS:RCX] | Exclusive | #GP | EPC_PAGE_CONFLICT_EXCEPTION |
| VA [DS:RDX] | Shared | #GP | ||
| SECS [DS:RBX]PAGEINFO.SECS | Shared | #GP | ||
| ELDBC/ELBUC | Target [DS:RCX] | Exclusive | SGX_EPC_PAGE_ CONFLICT | EPC_PAGE_CONFLICT_ERROR |
| VA [DS:RDX] | Shared | SGX_EPC_PAGE_ CONFLICT | ||
| SECS [DS:RBX]PAGEINFO.SECS | Shared | SGX_EPC_PAGE_ CONFLICT |
| Leaf | Parameter | Additional Concurrency Restrictions | |||||
|---|---|---|---|---|---|---|---|
| vs. EACCEPT, EACCEPTCOPY, EMODPE, EMODPR, EMODT | vs. EADD, EEXTEND, EINIT | vs. ETRACK, ETRACKC | |||||
| Access | On Conflict | Access | On Conflict | Access | On Conflict | ||
| ELDB/ELDU/ | Target [DS:RCX] | Concurrent | Concurrent | Concurrent | |||
| VA [DS:RDX] | Concurrent | Concurrent | Concurrent | ||||
| SECS [DS:RBX]PAGEINFO.SECS | Concurrent | Concurrent | Concurrent | ||||
| ELDBC/ELBUC | Target [DS:RCX] | Concurrent | Concurrent | Concurrent | |||
| VA [DS:RDX] | Concurrent | Concurrent | Concurrent | ||||
| SECS [DS:RBX]PAGEINFO.SECS | Concurrent | Concurrent | Concurrent |
| Name | Type | Size (Bits) | Description |
|---|---|---|---|
| TMP_SRCPGE | Memory page | 4KBytes | |
| TMP_SECS | Memory page | 4KBytes | |
| TMP_PCMD | PCMD | 128 Bytes | |
| TMP_HEADER | MACHEADER | 128 Bytes | |
| TMP_VER | UINT64 | 64 | |
| TMP_MAC | UINT128 | 128 | |
| TMP_PK | UINT128 | 128 | Page encryption/MAC key. |
| SCRATCH_PCMD | PCMD | 128 Bytes |
(* Check PAGEINFO and EPCPAGE alignment *)
IF ( (DS:RBX is not 32Byte Aligned) or (DS:RCX is not 4KByte Aligned) )
THEN #GP(0); FI;
IF (DS:RCX does not resolve within an EPC)
THEN #PF(DS:RCX); FI;
(* Check VASLOT alignment *)
IF (DS:RDX is not 8Byte aligned)
THEN #GP(0); FI;
IF (DS:RDX does not resolve within an EPC)
THEN #PF(DS:RDX); FI;
TMP_SRCPGE ← DS:RBX.SRCPGE;
TMP_SECS ← DS:RBX.SECS;
TMP_PCMD ← DS:RBX.PCMD;
(* Check alignment of PAGEINFO (RBX) linked parameters. Note: PCMD pointer is overlaid on top of PAGEINFO.SECINFO field *)
IF ( (DS:TMP_PCMD is not 128Byte aligned) or (DS:TMP_SRCPGE is not 4KByte aligned) )
THEN #GP(0); FI;
(* Check concurrency of EPC by other Intel SGX instructions *)
IF (other instructions accessing EPC)
THEN
IF ((EAX==07h) OR (EAX==08h)) (* ELDB/ELDU *)
THEN
IF (<<VMX non-root operation>> AND
<<ENABLE_EPC_VIRTUALIZATION_EXTENSIONS>>)
THEN
VMCS.Exit_reason ← SGX_CONFLICT;
VMCS.Exit_qualification.code ← EPC_PAGE_CONFLICT_EXCEPTION;
VMCS.Exit_qualification.error ← 0;
VMCS.Guest-physical_address ←
<< translation of DS:RCX produced by paging >>;
VMCS.Guest-linear_address ← DS:RCX;
Deliver VMEXIT;
ELSE
#GP(0);
FI;
ELSE (* ELDBC/ELDUC *)
IF (<<VMX non-root operation>> AND
<<ENABLE_EPC_VIRTUALIZATION_EXTENSIONS>>)
THEN
VMCS.Exit_reason ← SGX_CONFLICT;
VMCS.Exit_qualification.code ← EPC_PAGE_CONFLICT_ERROR;
VMCS.Exit_qualification.error ← SGX_EPC_PAGE_CONFLICT;
VMCS.Guest-physical_address ←
<< translation of DS:RCX produced by paging >>;
VMCS.Guest-linear_address ← DS:RCX;
Deliver VMEXIT;
ELSE
RFLAGS.ZF ← 1;
RFLAGS.CF ← 0;
RAX ← SGX_EPC_PAGE_CONFLICT;
GOTO ERROR_EXIT;
FI;
FI;
FI;
(* Check concurrency of EPC and VASLOT by other Intel SGX instructions *)
IF (Other instructions modifying VA slot)
THEN
IF ((EAX==07h) OR (EAX==08h)) (* ELDB/ELDU *)
#GP(0);
FI;
ELSE (* ELDBC/ELDUC *)
RFLAGS.ZF ← 1;
RFLAGS.CF ← 0;
RAX ← SGX_EPC_PAGE_CONFLICT;
GOTO ERROR_EXIT;
FI;
(* Verify EPCM attributes of EPC page, VA, and SECS *)
IF (EPCM(DS:RCX).VALID = 1)
THEN #PF(DS:RCX); FI;
IF ( (EPCM(DS:RDX & ~0FFFH).VALID = 0) or (EPCM(DS:RDX & ~0FFFH).PT ≠ PT_VA) )
THEN #PF(DS:RDX); FI;
(* Copy PCMD into scratch buffer *)
SCRATCH_PCMD[1023: 0]←DS:TMP_PCMD[1023:0];
(* Zero out TMP_HEADER*)
TMP_HEADER[sizeof(TMP_HEADER)-1: 0]←0;
TMP_HEADER.SECINFO ← SCRATCH_PCMD.SECINFO;
TMP_HEADER.RSVD ← SCRATCH_PCMD.RSVD;
TMP_HEADER.LINADDR ← DS:RBX.LINADDR;
(* Verify various attributes of SECS parameter *)
IF ( (TMP_HEADER.SECINFO.FLAGS.PT = PT_REG) or (TMP_HEADER.SECINFO.FLAGS.PT = PT_TCS) or
(TMP_HEADER.SECINFO.FLAGS.PT = PT_TRIM) )
THEN
IF ( DS:TMP_SECS is not 4KByte aligned)
THEN #GP(0) FI;
IF (DS:TMP_SECS does not resolve within an EPC)
THEN #PF(DS:TMP_SECS) FI;
IF ( Other instructions modifying SECS)
THEN
IF ((EAX==07h) OR (EAX==08h)) (* ELDB/ELDU *)
#GP(0);
FI;
ELSE (* ELDBC/ELDUC *)
RFLAGS.ZF ← 1;
RFLAGS.CF ← 0;
RAX ← SGX_EPC_PAGE_CONFLICT;
GOTO ERROR_EXIT;
FI;
FI;
IF ( (TMP_HEADER.SECINFO.FLAGS.PT = PT_REG) or (TMP_HEADER.SECINFO.FLAGS.PT = PT_TCS) or
(TMP_HEADER.SECINFO.FLAGS.PT = PT_TRIM) )
THEN
TMP_HEADER.EID ← DS:TMP_SECS.EID;
ELSE
(* These pages do not have any parent, and hence no EID binding *)
TMP_HEADER.EID ← 0;
FI;
(* Copy 4KBytes SRCPGE to secure location *)
DS:RCX[32767: 0]←DS:TMP_SRCPGE[32767: 0];
TMP_VER ← DS:RDX[63:0];
(* Decrypt and MAC page. AES_GCM_DEC has 2 outputs, {plain text, MAC} *)
(* Parameters for AES_GCM_DEC {Key, Counter, ..} *)
{DS:RCX, TMP_MAC}←AES_GCM_DEC(CR_BASE_PK, TMP_VER << 32, TMP_HEADER, 128, DS:RCX, 4096);
IF ( (TMP_MAC ≠ DS:TMP_PCMD.MAC) )
THEN
RFLAGS.ZF ← 1;
RAX← SGX_MAC_COMPARE_FAIL;
GOTO ERROR_EXIT;
FI;
(* Check version before committing *)
IF (DS:RDX ≠ 0)
THEN #GP(0);
ELSE
DS:RDX← TMP_VER;
FI;
(* Commit EPCM changes *)
EPCM(DS:RCX).PT ← TMP_HEADER.SECINFO.FLAGS.PT;
EPCM(DS:RCX).RWX ← TMP_HEADER.SECINFO.FLAGS.RWX;
EPCM(DS:RCX).PENDING ← TMP_HEADER.SECINFO.FLAGS.PENDING;
EPCM(DS:RCX).MODIFIED ← TMP_HEADER.SECINFO.FLAGS.MODIFIED;
EPCM(DS:RCX).PR ← TMP_HEADER.SECINFO.FLAGS.PR;
EPCM(DS:RCX).ENCLAVEADDRESS ← TMP_HEADER.LINADDR;
IF ( ((EAX = 07H) or (EAX = 12H)) and (TMP_HEADER.SECINFO.FLAGS.PT is NOT PT_SECS or PT_VA))
THEN
EPCM(DS:RCX).BLOCKED ← 1;
ELSE
EPCM(DS:RCX).BLOCKED ← 0;
FI;
IF (TMP_HEADER.SECINFO.FLAGS.PT is PT_SECS)
<< store translation of DS:RCX produced by paging in SECS(DS:RCX).ENCLAVECONTEXT >>
FI;
EPCM(DS:RCX). VALID←1;
RAX← 0;
RFLAGS.ZF ← 0;
ERROR_EXIT:
RFLAGS.CF,PF,AF,OF,SF ← 0;
Sets ZF if unsuccessful, otherwise cleared and RAX returns error code. Clears CF, PF, AF, OF, SF.
| #GP(0) | If a memory operand effective address is outside the DS segment limit. |
| If a memory operand is not properly aligned. | |
| If the instruction’s EPC resource is in use by others. | |
| If the instruction fails to verify MAC. | |
| If the version-array slot is in use. | |
| If the parameters fail consistency checks. | |
| #PF(error | code) If a page fault occurs in accessing memory operands. |
| If a memory operand expected to be in EPC does not resolve to an EPC page. | |
| If one of the EPC memory operands has incorrect page type. | |
| If the destination EPC page is already valid. |
| #GP(0) | If a memory operand is non-canonical form. |
| If a memory operand is not properly aligned. | |
| If the instruction’s EPC resource is in use by others. | |
| If the instruction fails to verify MAC. | |
| If the version-array slot is in use. | |
| If the parameters fail consistency checks. | |
| #PF(error | code) If a page fault occurs in accessing memory operands. |
| If a memory operand expected to be in EPC does not resolve to an EPC page. | |
| If one of the EPC memory operands has incorrect page type. | |
| If the destination EPC page is already valid. |


Thing Description Playground
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Simple Navbar
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Simple Navbar
This is a simple nav bar example !!!!!!!!!


COME ON OVER
We think being here is one of the more important parts of the conference,
so we’ve tried to make your stay as easy as possible.
CHECK IN
Upon arrival, there will be signs directing you to our registration table. Information about the locations of individual activites will be provided in a brochure upon check-in. You will be given a wristband and name tag that will identify you as an attendee or speaker. Wristbands grant you admittance into the lectures and workshops.
ACCOMODATIONS
If you’re travelling from another school, and don’t want to pay money for a hotel, our student team will be happy to let you crash in one of our apartments for a few nights. For more information on couch-surfing, contact us. For hotel accomodations, the closest hotels are:
RIT Inn and Conference Center
5257 West Henrietta Road
Rochester, NY
14602
Radisson at RIT
175 Jefferson Road
Rochester, NY
14623
PARKING
Parking will be available in lots E, F, G, or H on RIT’s campus. From those lots, please walk straight up the hill into the breezeway; there will be signage from there. Check out this interactive map for more detailed information!
FOOD
Food will be provided for all conference attendees at the majority of Thought At Work’s events. However, depending on the length of your stay in Rochester, you may need more grub. Check out these places on campus, and right off campus for other options.
On Campus:
Java Wally's Brick City Cafe
Salsarita's RITZ Sports Zone
Crossroads Midnight Oil
Off Campus:
Lovin' Cup Aladdins
Bay Goodman Pizza Baxter's Restaurant
Tandoor of India MacGregor's Grill & Tap Room


Slowish is a Django app that provides a lightweight implementation of the Swift API. Slowish is not intended as a production-ready implementation of Swift. It's merely meant to be used as an endpoint to assist in testing other apps that target Swift, (without requiring a full-blown OpenStack instance running just to support the tests).
Follow the steps below to explore the capabilities of Slowish by using either of the command-line programs curl or swift (which ships as part of python-swiftclient). You can also write python code using the python-swiftclient API to target the Slowish endpoints.
Before you can use Slowish, you'll need to create a couple of
objects within its database. Run python manage.py
createsuperuser
to create a superuser account. Then
connect to the Slowish admin interface and
create a SlowishAccount as well as a SlowishUser within that
account.
You can use any valid values you like for account ID, username, and password, but take note of them, because you will need them in the next step.
Using the values you used when creating the account and user in the previous step, set the following environment variables:
The simplest step you can perform with Slowish is to verify that you can succesfully authenticate. Use one of the following commands:
If you are using the swift client, you will not need to note these values, (all swift commands will internally issue an authentication request and obtain the values needed). But for making direct request with curl, you should now set two additional environment variables using the values obtained from your authentication request:
Now that you can successfully authenticate, you can create a container within your Slowish account using either of the following commands:
You can list all available containers with either of the following commands:
You can create a file within a container with either of the following commands:
You can list the files that exist within a container, (optionally restricted to files matching a particular prefix), with either of the following commands:
You can delete a file from a container with either of the following commands:


Opening Hours
- Sunday to Thursday 9:00 AM - 6:00 PM
- friday and saturday Colsed
We do everything in our power to ensure that the prices and availability of our products are constantly updated. There may be cases where products contain inaccurate or incomplete data, including product price data or availability. We do not guarantee that the information on our website is error-free. We reserve the right to correct errors and / or update the content on our website at any time without notice. We reserve the right to refuse or cancel any order containing any error, including after the order has been submitted, whether or not the order has been confirmed Or even payment has been processed from your credit card. If your order has been canceled after your payment method has been processed, we will refund the full amount in the same way as the original payment. We reserve the right to cancel or reject any order without giving reasons.
We reserve the right to change the pricing of products, conditions, specifications and warranties without notice. In addition, we may modify these Terms of Use at any time by updating the Site.
We reserve the right to limit the number of products sold, including the right to block any sales for any reason.
All products are guaranteed by the guarantor agent for each product without any liability to the seller.
Product prices and availability can be changed at any time without notice.
We are unable to cancel any order from the time your order is placed (when you click the Submit button) until you receive the product and return it to us. If you are not completely satisfied with your purchase after receiving your product, we've got.
If you are dissatisfied with a product you have purchased, we may replace it or refund the purchased product - as we see fit - within 7 business days from the date of requesting a product refund, in accordance with the terms set forth below.
1. The boxes and packaging materials must be in their original condition and the product or the opening of the box containing the product should not be used. The purchase invoice should be submitted with all products returned, replaced or refunded.
2. Products returned are either replaced or refunded only, the value of the product being refunded will not include shipping costs.
3. All products must be returned in full, in their boxes, packages or packaging in their original condition before sale, provided that all original parts / documents are returned. If the product is not returned with its packaging or in case of shortage of any part or other document, The product is accepted as a product to be refunded.
4. All shipping costs and collection rate (if paid by the bank) must be paid in advance. The customer is responsible for all shipping costs and collection rate (if paid by the bank).
And in accordance with the provisions of the Consumer Protection Law Law No. 67 of 2006


?Schultesia
guianensis
(Aubl.)
Malme
Det.-rev.
M.
Thiv
(B)
2001
PRESENTED
BY
JOHN
J.
CROOKE,
ESQ.,
1899.
Plautn1
Cubenses
Wrishtiamf.
No.
VtH
Coli-
O.
WBIOHT,
1860
Ñ
1864.
New
York
Botanical
Garden
IbSMfilb
Schultesia
guianensis
(Ai˜l.)
Maine
det.
R.L.
Wilbur
1993
Duke
University
Herbariun
1624816
Legend -
Level of confidence that token is an accurately-transcribed word
extremely low
very low
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undetermined
medium
high
very high


Before & After School Child Care - Willard Community Center
Before & After School Care at Lakeview Elementary School . Fax<PHONE_NUMBER> ) or Mail to Willard Community Center, 1245 Folsom Street, Lincoln, NE 68522.
http://www.willardcommunitycenter.com/children/beforeafterschool.html
: Lakeview Elementary School - WordPress at LPS - Lincoln Public ...
Welcome to Lakeview Elementary School . to serve the students, families, and staff at Lakeview Elementary as principal. This year . Lincoln, Nebraska 68528 .
http://wp.lps.org/lakeview/
Lakeview Elementary School | Norman Public School
Lakeview Elementary School. 3310 108th Avenue NE, 73026. P:<PHONE_NUMBER> F:<PHONE_NUMBER>. Principal: Paula Palermo · » Visit our full website .
http://www.norman.k12.ok.us/index.php?es-lakeview
LPS.ORG | About LPS - Lincoln Public Schools
Renowned for its long-standing legacy of educational excellence, Lincoln Public Schools is the second largest public school district in the state of Nebraska: a .
http://www.lps.org/about/
Lakeview Elementary School in Lincoln, Nebraska (NE) - Test ...
Lakeview Elementary School in Lincoln, Nebraska (NE) - Test .
http://www.city-data.com/school/lakeview-elementary-school-ne.html
Lincoln Schools | NE - Ratings and Map of Public and Private Schools
Find the best public and private schools (preschool, elementary, middle, and high ) in Lincoln, NE by comparing school ratings and reading parent reviews.
http://www.localschooldirectory.com/city-schools/Lincoln/NE
Lakeview Elementary School, Lincoln NE School Profile, Ranking ...
Lakeview Elementary School school profile, performance trends and NE state ranking. See how Lakeview Elementary School ranks to other Lincoln schools.
http://www.schooldigger.com/go/NE/schools/7284001158/school.aspx


Welcome to Mimosa
Optimized mode. You are getting a single RequireJS optimized JavaScript file which includes all the page dependencies.


Shuttleworth
This page contains an index of all the individuals in the database with the surname of Shuttleworth. Selecting the person’s name will take you to that person’s individual page.
| Given Name | Birth | Death | Partner | Parents |
|---|---|---|---|---|
| Agnes J. | 1865 | Shuttleworth, Mark Edmond (Police) Watson, Jean Graham (or Jane) | ||
| Agnes Jessie | 1869 | 1963-10-23 | Sadleir, Robert George | Shuttleworth, Mark Edmond (Police) Watson, Jean Graham (or Jane) |
| Alice Edith Neale | 1918 | 1985-08-01 | Bush, Robert George | Shuttleworth, Leslie Broughton Fulton, Edith Alice |
| Ann | 1824 | 1906-08-26 | Green, James | |
| Arthur | 1838 | Shuttleworth, Mark Hodgson Fourdrinier, Harriet | ||
| Beryl Jean | 1918-10-15 | 2005-07-28 | Turner, Frederick Parkes | Shuttleworth, Leonard Walter Brown, Rose Hannah May |
| Brian Robert | 1938 | 1998-09-17 | , [Living] | Shuttleworth, Leslie Mervyn Brown, Marjorie Elizabeth |
| Caroline “Jessie” | 1894 | 1978-04-15 | Shuttleworth, Mark Hodgson (Draper) Gazzard, Alice Maud Mary | |
| Caroline J. | 1893 | 1893 | Shuttleworth, Mark Hodgson (Draper) Gazzard, Alice Maud Mary | |
| Daphne | 1911 | 1965 | Holme, Roy Clifford | Shuttleworth, Walter MacFarlane Harvey, Fanny Jane |
| David Watson | 1896-04-06 | 1966-03-31 | Farquharson, Aileen Myrtle | Shuttleworth, William Ernest Tippett, Elizabeth Martha |
| Edith May | 1895 | 1927-08-01 | Shuttleworth, Walter MacFarlane Harvey, Fanny Jane | |
| Elizabeth Jean K. | 1897 | 1971-05-25 | Quigg, Charles T. | Shuttleworth, William Ernest Tippett, Elizabeth Martha |
| Ellen | 1840 | Shuttleworth, Mark Hodgson Fourdrinier, Harriet | ||
| Ernest | 1847 | Shuttleworth, Mark Hodgson Fourdrinier, Harriet | ||
| Ernest William. | c1871 | 1917-10-13 | ???, Henrietta | Shuttleworth, Mark Edmond (Police) Watson, Jean Graham (or Jane) |
| Esther “Jean” | 1916-02-06 | 1996-04-10 | Bullivant, George Clifford, Devine, James Henry | Shuttleworth, Leslie Broughton Fulton, Edith Alice |
| George Edward | 1893 | 1964 | Shuttleworth, Walter MacFarlane Harvey, Fanny Jane | |
| Graham | 1943 | Shuttleworth, William Ernest Prior, Lillian Anne E. | ||
| Graham, married BrendaChristine | about 1945 | 2001-10-23 | Shuttleworth, Norman Hodgson Behn, Phyliss Evelyn | |
| Harold A. | 1896 | |||
| Harriet | 1844 | Shuttleworth, Mark Hodgson Fourdrinier, Harriet | ||
| Harriet Ann | about 1865 | 1943-11-04 | Stores, James | Shuttleworth, Mark Edmond (Police) Watson, Jean Graham (or Jane) |
| Herbert Charles | 1882 | 1931 | Rogers, Ada Flora | Shuttleworth, Mark Edmond (Police) Watson, Jean Graham (or Jane) |
| Herbert Charles D. | 1906 | 1961 | Shuttleworth, Herbert Charles Rogers, Ada Flora | |
| Hodgson Gazzard “Hodie” | 1890 | 1973-04-04 | Shuttleworth, Mark Hodgson (Draper) Gazzard, Alice Maud Mary | |
| Jack Leo | 1919-12-19 | ???, Dorothy Beatrice | Shuttleworth, Leslie Broughton Fulton, Edith Alice | |
| Joan | 1929-05-30 | 2006-09-19 | Bergan, John William “Jack” | Shuttleworth, Leslie Broughton Fulton, Edith Alice |
| Keith Eric | c1926 | Albrelht, Joan Iria | Shuttleworth, Leonard Walter Brown, Rose Hannah May | |
| Leonard George | c1921 | 1977-03-02 | Ford, Elsie May “Peg” | Shuttleworth, Leonard Walter Brown, Rose Hannah May |
| Leonard Walter | 1898 | Brown, Rose Hannah May | Shuttleworth, Walter MacFarlane Harvey, Fanny Jane | |
| Leslie Broughton | 1887-01-30 | 1945-07-16 | Fulton, Edith Alice | Shuttleworth, Mark Hodgson (Draper) Gazzard, Alice Maud Mary |
| Leslie Frederick | 1937 | 1937 | Shuttleworth, Leslie Mervyn Brown, Marjorie Elizabeth | |
| Leslie M. | 1907 | 1907 | Shuttleworth, Herbert Charles Rogers, Ada Flora | |
| Leslie Mervyn | 1911-10-05 | 1986-12-14 | Brown, Marjorie Elizabeth | Shuttleworth, Leslie Broughton Fulton, Edith Alice |
| Loline May | Shuttleworth, Ronald Fulton Cahill, Kathleen K. | |||
| Mark Edmond, (Police) | 1836-08-07 | 1920-07-22 | Watson, Jean Graham (or Jane) | Shuttleworth, Mark Hodgson Fourdrinier, Harriet |
| Mark Hodgson | 1807 | 1889-06-18 | Fourdrinier, Harriet | |
| Mark Hodgson, (Draper) | 1863-06-02 | 1931-09-21 | Gazzard, Alice Maud Mary | Shuttleworth, Mark Edmond (Police) Watson, Jean Graham (or Jane) |
| Mark Moses “Snow” | 1892 | 1970-11-11 | Broughton, Louisa M. | Shuttleworth, Mark Hodgson (Draper) Gazzard, Alice Maud Mary |
| Muriel P. | 1889 | 1889 | Shuttleworth, Mark Hodgson (Draper) Gazzard, Alice Maud Mary | |
| Neale Hodgson | 1915 | 1915 | Shuttleworth, Leslie Broughton Fulton, Edith Alice | |
| Norman Hodgson | 1922-03-26 | 1990-01-10 | Behn, Phyliss Evelyn | Shuttleworth, Leslie Broughton Fulton, Edith Alice |
| Robert | 1942-04-07 | 2009-08-30 | ???, [Living] | Shuttleworth, Leslie Mervyn Brown, Marjorie Elizabeth |
| Robert Glen | c1949 | 1961-04-24 | Shuttleworth, Ronald Fulton Cahill, Kathleen K. | |
| Ronald Fulton | 1913-05-25 | 1955-06-26 | Cahill, Kathleen K., Samuels, Norma Yvonne | Shuttleworth, Leslie Broughton Fulton, Edith Alice |
| Ronald Walter | 1995-03-05 | Samuel, Norma Evyvonne married Joseph Bellby | Shuttleworth, Ronald Fulton Cahill, Kathleen K. | |
| Ross Neale | 1922-08-04 | 1990-10-22 | Moss, [Living], Gibson, Judith Anne (nee Cook), Noonan, [Living] | Shuttleworth, Leslie Broughton Fulton, Edith Alice |
| Stillborn Male | c1944 | 1944 | Shuttleworth, William Ernest Prior, Lillian Anne E. | |
| Trevor | c1928 | 1979-05-20 | Ionn, Bonnetta | Shuttleworth, William Ernest Prior, Lillian Anne E. |
| Walter Charles | c1924 | 1988-12-05 | Pride, Hazel Violet Emily | Shuttleworth, Leonard Walter Brown, Rose Hannah May |
| Walter MacFarlane | 1867 | 1955-03-02 | Harvey, Fanny Jane | Shuttleworth, Mark Edmond (Police) Watson, Jean Graham (or Jane) |
| Walter McFarlane | 1906-04-06 | 1949 | Shuttleworth, Herbert Charles Rogers, Ada Flora | |
| William A. | 1901 | |||
| William Ernest | 1871 | Tippett, Elizabeth Martha, Prior, Lillian Anne E. | Shuttleworth, Mark Edmond (Police) Watson, Jean Graham (or Jane) | |
| William Ernest | 1904 | 1969 | Shuttleworth, Herbert Charles Rogers, Ada Flora | |
| [Living] | ||||
| [Living] | Shuttleworth, Ross Neale Noonan, [Living] | |||
| [Living] | Jones, Jennie | Shuttleworth, Ross Neale Moss, [Living] | ||
| [Living] | Jones, Colin | Shuttleworth, Ross Neale Moss, [Living] | ||
| [Living] | Sheppard, William | Shuttleworth, Ross Neale Moss, [Living] | ||
| [Living] | Batisic, [Living] | Shuttleworth, Ross Neale Moss, [Living] | ||
| [Living] | Readett, John Hanley | Shuttleworth, Leslie Mervyn Brown, Marjorie Elizabeth | ||
| [Living] | Brooks, [Living] | Shuttleworth, Leslie Mervyn Brown, Marjorie Elizabeth | ||
| [Living] | Shuttleworth, Norman Hodgson Behn, Phyliss Evelyn | |||
| [Living] | Shuttleworth, Norman Hodgson Behn, Phyliss Evelyn | |||
| [Living] | Shuttleworth, Norman Hodgson Behn, Phyliss Evelyn | |||
| [Living] | Shuttleworth, Norman Hodgson Behn, Phyliss Evelyn | |||
| [Living] | Shuttleworth, Norman Hodgson Behn, Phyliss Evelyn | |||
| [Living] | Shuttleworth, Norman Hodgson Behn, Phyliss Evelyn | |||
| [Living] | Shuttleworth, Norman Hodgson Behn, Phyliss Evelyn | |||
| [Living] | Tedesco, [Living] | Shuttleworth, [Living] Brooks, [Living] | ||
| [Living] | Cronberger, [Living] | Shuttleworth, [Living] Brooks, [Living] | ||
| [Living] | Reilly, [Living] | Shuttleworth, [Living] Brooks, [Living] | ||
| [Living] | Shuttleworth, Brian Robert , [Living] | |||
| [Living] | Shuttleworth, Robert ???, [Living] | |||
| [Living] | Shuttleworth, Robert ???, [Living] | |||
| [Living] | Shuttleworth, Jack Leo ???, Dorothy Beatrice | |||
| [Living] | Shuttleworth, Jack Leo ???, Dorothy Beatrice | |||
| [Living] | Shuttleworth, Jack Leo ???, Dorothy Beatrice | |||
| [Living] | Shuttleworth, Jack Leo ???, Dorothy Beatrice | |||
| [Living] | Shuttleworth, Ernest William. ???, Henrietta | |||
| [Living] | Shuttleworth, Ernest William. ???, Henrietta | |||
| [Living] | Shuttleworth, Trevor Ionn, Bonnetta | |||
| [Living] | Shuttleworth, Trevor Ionn, Bonnetta | |||
| [Living] | Shuttleworth, Trevor Ionn, Bonnetta | |||
| [Living] | Shuttleworth, Trevor Ionn, Bonnetta | |||
| [Living] | Shuttleworth, Walter Charles Pride, Hazel Violet Emily | |||
| [Living] | Shuttleworth, Walter Charles Pride, Hazel Violet Emily | |||
| [Living] | Shuttleworth, Walter Charles Pride, Hazel Violet Emily | |||
| [Living] | Shuttleworth, Leonard George Ford, Elsie May "Peg" | |||
| [Living] | Shuttleworth, David Watson Farquharson, Aileen Myrtle | |||
| [Living] | Shuttleworth, Walter Charles Pride, Hazel Violet Emily | |||
| [Living] | Shuttleworth, Walter Charles Pride, Hazel Violet Emily | |||
| [Living] | Shuttleworth, Walter Charles Pride, Hazel Violet Emily | |||
| [Living] | Shuttleworth, Leonard George Ford, Elsie May "Peg" | |||
| [Living] | Shuttleworth, Leonard George Ford, Elsie May "Peg" | |||
| [Living] | Shuttleworth, Leonard George Ford, Elsie May "Peg" | |||
| [Living] | Shuttleworth, [Living] Jones, Jennie | |||
| [Living] | Shuttleworth, [Living] Jones, Jennie | |||
| [Living] | Shuttleworth, Brian Robert , [Living] | |||
| [Living] | Shuttleworth, Brian Robert , [Living] |


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bang on
`Prev `__
B
`Next `__
--------------
**bang on**: vt.
To stress-test a piece of hardware or software: “I banged on the new
version of the simulator all day yesterday and it didn't crash once. I
guess it is ready for release.” The term `*pound
on* <../P/pound-on.html>`__ is synonymous.
--------------
+-------------------------+----------------------------+------------------------------+
| `Prev `__ | `Up <../B.html>`__ | `Next `__ |
+-------------------------+----------------------------+------------------------------+
| bang | `Home <../index.html>`__ | bang path |
+-------------------------+----------------------------+------------------------------+


This server hosts research data files created by ??????, Zoology Department, Oxford University (http://????.zoo.ox.ac.uk/????).
Administered by:
Graham Klyne / Bhavana Ananda
Image Bioinformatics Research Group,
Department of Zoology, University of Oxford
South Parks Road, Oxford OX1 3PS, UK
Tel: +44-(0)1865-281991
Fax: +44-(0)1865-310447
Web: http://ibrg.zoo.ox.ac.uk/


Ray: A Distributed Execution Framework for AI Applications
This post announces Ray, a framework for efficiently running Python code on clusters and large multi-core machines. The project is open source. You can check out the code and the documentation.
Many AI algorithms are computationally intensive and exhibit complex communication patterns. As a result, many researchers spend most of their time building custom systems to efficiently distribute their code across clusters of machines.
However, the resulting systems are often specific to a single algorithm or class of algorithms. We built Ray to help eliminate a bunch of the redundant engineering effort that is currently repeated over and over for each new algorithm. Our hope is that a few basic primitives can be reused to implement and to efficiently execute a broad range of algorithms and applications.
Simple Parallelization of Existing Code
Ray enables Python functions to be executed remotely with minimal modifications.
With regular Python, when you call a function, the call blocks until the function has been executed. This example would take 8 seconds to execute.
With Ray, when you call a remote function, the call immediately returns a future (we will refer to these as object IDs). A task is then created, scheduled, and executed somewhere in the cluster. This example would take 1 second to execute.
Note that the only changes are that we add the @ray.remote
decorator to the
function definition, we call the function with f.remote()
, and we call
ray.get
on the list of object IDs (remember that object IDs are futures) in
order to block until the corresponding tasks have finished executing.
Flexible Encoding of Task Dependencies
In contrast with bulk-synchronous parallel frameworks like MapReduce or Apache Spark, Ray is designed to support AI applications which require fine-grained task dependencies. In contrast with the computation of aggregate statistics of an entire dataset, a training procedure may operate on a small subset of data or on the outputs of a handful of tasks.
Dependencies can be encoded by passing object IDs (which are the outputs of tasks) into other tasks.
By passing the outputs of some calls to aggregate_data
into subsequent calls
to aggregate_data
, we encode dependencies between these tasks which can be
used by the system to make scheduling decisions and to coordinate the transfer
of objects. Note that when object IDs are passed into remote function calls, the
actual values will be unpacked before the function is executed, so when the
aggregate_data
function is executed, x
and y
will be numpy arrays.
Shared Mutable State with Actors
Ray uses actors to share mutable state between tasks. Here is an example in which multiple tasks share the state of an Atari simulator. Each task runs the simulator for several steps picking up where the previous task left off.
Each call to simulator.step.remote
generates a task that is scheduled on the
actor. These tasks mutate the state of the simulator object, and they are
executed one at a time.
Like remote functions, actor methods return object IDs (that is, futures) that
can be passed into other tasks and whose values can be retrieved with ray.get
.
Waiting for a Subset of Tasks to Finish
Sometimes when running tasks with variable durations, we don’t want to wait for all of the tasks to finish. Instead, we may wish to wait for half of the tasks to finish or perhaps to use whichever tasks have completed after one second.
In this example ready_ids
is a list of object IDs whose corresponding tasks
have finished executing, and remaining_ids
is a list of the remaining object
IDs.
This primitive makes it easy to implement other behaviors, for example we may wish to process some tasks in the order that they complete.
Note that it would be straightforward to modify the above example to adaptively launch new tasks whenever a previous one completes.
Efficient Shared Memory and Serialization with Apache Arrow
Serializing and deserializing data is often a bottleneck in distributed computing. Ray lets worker processes on the same machine access the same objects through shared memory. To facilitate this, Ray uses an in-memory object store on each machine to serve objects.
To illustrate the problem, suppose we create some neural network weights and wish to ship them from one Python process to another.
To ship the neural network weights around, we need to first serialize them into a contiguous blob of bytes. This can be done with standard serialization libraries like pickle.
The time required for deserialization is particularly important because one of the most common patterns in machine learning is to aggregate a large number of values (for example, neural net weights, rollouts, or other values) in a single process, so the deserialization step could happen hundreds of times in a row.
To minimize the time required to deserialize objects in shared memory, we use the Apache Arrow data layout. This allows us to compute offsets into the serialized blob without scanning through the entire blob. In practice, this can translate into deserialization that is several orders of magnitude faster.
The call to ray.put
serializes the weights using Arrow and copies the result
into the object store’s memory. The call to ray.get
then deserializes the
serialized object and constructs a new dictionary of numpy arrays. However, the
underlying arrays backing the numpy arrays live in shared memory and are not
copied into the Python process’s heap.
Note that if the call to ray.get
happens from a different machine, the
relevant serialized object will be copied from a machine where it lives to the
machine where it is needed.
In this example, we call ray.put
explicitly. However, normally this call would
happen under the hood when a Python object is passed into a remote function or
returned from a remote function.
Feedback is Appreciated
This project is in its early stages. If you try it out, we’d love to hear your thoughts and suggestions.


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