chapter 5  data parallel programming with repa

... Pertinent Now The advanced parallel programming features that are delivered with Visual Studio 2010 make it easier than ever to get started with parallel programming The Parallel Patterns Library ... for parallel programming, with code examples, that use the new parallel programming support in the Mi-crosoft® Visual C++® development system This support is com-monly referred to as the Parallel ... www.it-ebooks.info Trang 3Parallelism with Control Dependencies Only xviiiParallelism with Control and Data Dynamic Task Parallelism and Pipelines xviii The Importance of Potential Parallelism 2 Decomposition,...

Ngày tải lên: 24/03/2014, 01:21

... Contextualizing Parallel, Concurrent, and Distributed Programming 7 Why use parallel programming? 9 Exploring common forms of parallelization 9 Communicating in parallel programming 11 Identifying parallel ... 1www.it-ebooks.infoTrang 2Parallel Programming with PythonDevelop efficient parallel systems using the robust Python environment Jan Palach BIRMINGHAM - MUMBAI Trang 3Parallel Programming with PythonCopyright ... • Introducing the common forms of parallelization • Communicating in parallel programming • Identifying parallel programming problems • Discovering Python's programming tools • Taking care of...

Ngày tải lên: 12/09/2017, 01:35

... matrix multiplication with MATLAB is: > > a*c ans = 4 Other matrix operations a) Transpose of product: ( )T T T = b) Product with identity matrix: aI= a c) Product with zero matrix:a0= ... %d defines a decimal character with the value of 10 and the \n defines a new line To get a complete description type > > help fprintf 12.1.11 Programming with MATLAB MATLAB is very convenient ... in the physical coordinate - xt Trang 2712.4 Finite element programming in 1D with MATLAB In Section 12.2 the basic finite element programming structure was introduced for one- and two- dimensional...

Ngày tải lên: 17/01/2020, 05:48

... dereference the array within the list with: Trang 9Expanding Relative URLs From the previous example, the links from showlink printed out the hyperlinks exactly as they appear within the HTML But ... routines within the LWP library  At the end of the chapter, we'll present some examples that glue together the different components of LWP Some Simple Examples LWP is distributed with a very ... that are useful for client programming The LWP Module The LWP module, in the context of web clients, performs client requests over the network There are 10 classes in all within the LWP module,...

Ngày tải lên: 24/10/2013, 08:15

... a scalar $r->code([$code]) Trang 2When invoked without any parameters, the code( ) method returns the object's response code When invoked with a status code as the first parameter, code( ) ... $r->message([$message]) Not to be confused with the entity-body of the response This is the human-readable text that a user would usually see in the first line of an HTTP response from a server With a response code ... "OK" or "Document follows." When invoked without any parameters, the message( ) method returns the object's HTTP message When invoked Trang 3with a scalar parameter as the first parameter,...

Ngày tải lên: 24/10/2013, 08:15

... cannot begin with a digit • Style: Names should be descriptive to improve readability Trang 10Names (cont’d) • Programmers follow strict style conventions • Style: names of classes begin with an uppercase ... Trang 1Java Syntax and Styleand Data Structures Maria Litvin ● Gary Litvin 2nd AP edition with GridWorld Trang 2• Review reserved words and standard names• Learn the proper style for naming ... are capitalized: public class ActorWorld • Style: names of methods, fields, and variables begin with a lowercase letter, subsequent words are capitalized: private int sideLength; public void moveTo()...

Ngày tải lên: 04/11/2020, 23:14

... Pragma header was used with the value no-cache to tell caching proxies and clients not to cache the document Under HTTP 1.1, the Cache-Control header supplants Pragma, with several caching directives ... can use the IfModified-Since header with the GET method When using this option, the client requests the server to send the requested information associated with the URL only if it has been modified ... document If the document is newer, the server will send it along with a 200 (OK) code Servers may also include a Last-Modified header with the document, to let the user know when the last change...

Ngày tải lên: 17/10/2013, 19:15

... figure out which headers to use, the parameters with each header, and special cases like dealing with HTTP version differences and URL redirections With the socket library, you do all of this on ... careful about what you say; if it's not fully compliant with the HTTP specs, the web server won't understand you! Perhaps your web client works with one web server but not another Or maybe your web ... connection associated with that socket on a specified remote host and port The server uses the accept( ) call to intercept the incoming connection and initiate communication with the client Now...

Ngày tải lên: 20/10/2013, 10:15

... to the web server you specify This allows you to do things like HTML form postings with POST, or a file upload with PUT, and selectively look at the results At this point, it's really all up to ... using web client software Most of these issues are automatically handled by LWP, but when programming directly with sockets, you have to take care of them yourself How does your client handle tag ... shcat, a shell utility that accepts methods, headers, and entity-body data from standard input With this program, you can write shell scripts that specify different methods, custom headers, and...

Ngày tải lên: 20/10/2013, 10:15

... programs with more user-friendly options and features We present three broad categories of web client programs:  Simple clients programs that perform actions for users in real time, usually with ... all use a simple command-line interface In Chapter 7, Graphical Examples with Perl/Tk, we have some additional examples with a graphical interface using the Tk extension to Perl Simple Clients ... presented in Chapter 4, The Socket Library  Periodic clients robots that perform a request repeatedly, with some delay between each request Periodic clients typically request the same resource over and...

Ngày tải lên: 28/10/2013, 15:15

... concept to understand with Perl/Tk is that the program won't do a single thing until it hits the MainLoop statement You won't see any graphical output at all until then We prepare it by telling ... this simple program that will just prompt for the word and go look it up without all that extra hassle Anyone familiar with the xwebster client for the X Window System will find xword to be vaguely ... place We want lots of room to type, so we set it up with a default width of 40 Also note that we are storing anything that's been entered with the Entry widget in a global variable called $word...

Ngày tải lên: 07/11/2013, 09:15

... we need to delimit it from the prior text (which we insert into our text widget with the flush_text( ) function) with a few returns Note that flush_text( ) takes the same arguments as any of our ... to call our function, do_search( ), with the URL we extracted from the HTML tag Then we insert the text for the link into the text widget, and associate it with the tag we just built Figure 7-2 ... every few minutes For this example, we'll interact with the Federal Express tracking page When you ship a package via FedEx, they keep track of it with a shipping number (also called an airbill...

Ngày tải lên: 07/11/2013, 09:15

... letter, it would scroll to the first entry starting with that letter Or you could put an additional entry, and search for any word starting with those characters: my $response_f = $mw->Frame; ... the date field The FedEx web page expects it in the form of "DayMonthYear", and digits with only one number require a leading zero The string returned from localtime( ) gives us the ... Trang 1Chapter 7: Graphical Examples with Perl/Tk- P3 Our destinations list is an almost exact copy of the list you'd see on the web...

Ngày tải lên: 07/11/2013, 09:15

... require actual shared memory segments and can be done with modules like IPC::Shareable ), or among multiple components (this can easily be done with global variables) It is also unwise to use variables ... %-lines, and so on The only exceptions are that you may not use <%def> or <%method> blocks within Trang 2subcomponents nor may you use "global" blocks like <%once> or <%shared> ... subcomponent Note that the component is assigned a name inside the <%def> tag (the name often starts with a period, purely by convention) and that you use the regular component-calling mechanisms ($m->comp()...

Ngày tải lên: 14/12/2013, 12:15

... again a taglib-esque idea The answer is yes, with some caveats We say "with caveats" because due to the way this feature is implemented, with closures, you have to jump through a few ... $sql = $m->scomp($m->base_comp, %ARGS); my $q = $dbh->prepare($sql); $q->execute(@bind); # Return now if called without content # (useful for insert/update/delete statements) ... <% $text %> </%def> This looks more or less like any other <%filter> block, but with two main differences First, the body of a <%filter> block contains plain Perl code, but...

Ngày tải lên: 14/12/2013, 12:15

... DOM properties associated with a XUL window and the other XUL elements, but you can see all of them if you run the example Analyzing output like this can familiarize you with the interfaces available ... reputation as an unsophisticated language used mostly in web pages, JavaScript is more like a first-tier programming language Modularity, good exception handing, regular expression enhancement, and number ... also to MathML, SVG, and other XML markup By connecting web pages and XML documents to scripts or programming languages, the DOM is not a particular application, product, or proprietary ordering...

Ngày tải lên: 14/12/2013, 12:15

... JavaScript application programming The JSLib code discussed here is a group of JavaScript libraries currently being developed by Mozilla contributors and is especially useful for working with the XPFE ... the script instantiates the filepicker object and then uses it to display a file picker dialog with all of the file filters selected To run this example, add the function to your xfly.js file ... security boundaries) loaded in Mozilla instantiates a Mozilla sound component and plays a sound with it Go ahead and try it Example 5-11 Scripting components from HTML <head> <title>Sound...

Ngày tải lên: 14/12/2013, 12:15

... Trang 1Chapter 7: Graphical Examples with Perl/Tk- P4 Check if Servers Are up: webping For the last example, we'll build a GUI interface ... them, and bring them up automatically the next time we start the program Here's the final code, with most of the mentioned features represented: Trang 3## -i : Sets the autoping interval to <int> ... options ourselves As you can see from our usage Trang 4statement, we've got quite a few to deal with Automode is the term we use when the program loops and checks each web site every n minutes...

Ngày tải lên: 14/12/2013, 13:15

... 1:Introduction- Web Client Programming with Perl So what does Web client programming mean, and what do you need to learn to do it? A web client is an application that communicates with a web server, ... a server without needing to go through your browser. Similarly, you can return documents to web browsers without being limited to the functionality of an existing web server. HTTP programming ... Netscape Navigator, or Internet Explorer. With a browser, you can download web documents and view them formatted on your screen. When you request a document with your browser, you supply a web address,...

Ngày tải lên: 26/01/2014, 07:20

... rendering But all of that is gravy; without actually negotiating with web servers and retrieving documents via HTTP, the browser would be as useless as a TV without a tuner HTTP may sound intimidating, ... the one previously shown, the server looks for the file associated with "/" and returns it to the browser, preceding it with some "header information": HTTP/1.0 200 OK Date: Fri, ... GIF file] Figure 2-3 shows the complete transaction, with the image requested as well as the original document Figure 2-3 Simple transaction with embedded image There are a few differences between...

Ngày tải lên: 26/01/2014, 07:20