plinq

function for the relationship between threads. No matter how simple it becomes, the synchronization problem still exists completely. To compete for resources that are being used by other classes, the lock statement must be used after all. So, should I use the task? The answer is "should be used ". "Accessibility and ease of use" is a feature of the task class. Using the task class is one of the corresponding methods for the multi-core era. Although there are still synchronization problems, the

Plinq provides the possibility of parallel query processing. To process query operations in parallel, you only need to insert the asparallel method. But the problem occurs in parallel itself. That is to say, if there is no good synchronization design, the data sequence may be messy and not sorted. Because in parallel execution, a large amount of data can be processed at the same time, but it is not sure which data is processed first. Therefore, in th

Parallel development and learning 1-parallel plinq and parallel development I have been reading articles from yuanyou these two days. 8-day interactive parallel development-Use of plinq on the third day I practiced the first instance and found something interesting. Test environment:. net 4.5 64-bit (if it is 32-bit, the error of out of memory will pop up when testing 10 million data) Test results of t

Today we're going to talk about one of the key components of parallel extensions, PLINQ (Parallel LINQ). Microsoft's position with PLINQ in Parallel FX is that PLINQ is a high-level application of the TPL (Task Parallel Library). Because of the short time that Microsoft has developed for TPL, the quality of this Community preview version of TPL is still relativel

PLINQ SummaryLINQ (LINQ) Language Integrated Query facilitates querying and processing data from different data sources. PLINQ Parallel LINQ not only features LINQ, but also interfaces for parallel operations for ease of use and increased efficiency.More information: https://msdn.microsoft.com/zh-cn/library/dd460688 (v=vs.110). aspxA simple exampleA simple example is sufficient to illustrate the use of PLIN

C # parallel programming-PLINQ protocol operations and Aggregate functionsSummary PLINQ can simplify the process of applying the same function to all members of a sequence or group. This process is called a protocol operation. A Sum () function is a standard operation. PLINQ provides an interface that can overload Aggregate. Here you can define your own function.

The running result of Plinq is unordered, that is, it does not keep the sequence of the original set for operation (except for some special sorting operations ). The reason is that the concurrent execution of the thread is full of uncertainty. Splitting the original task into several parts and returning results at the same time will disrupt the original order. If you want to retain the order forcibly, some performance will be wasted.

C # parallel programming-PLINQ: declarative data parallelismBackground through LINQ, you can easily query and process different data sources, and use Parallel LINQ (PLINQ) to fully obtain the advantages of parallelism. PLINQ not only implements the complete LINQ operator, but also adds some operators for executing parallel operations. Compared with the correspond

PLINQint[] SourceData = new Int[100];for (int i = 0; I The key approach to parallel LINQ: AsParallel (). Because ToList (), ToArray (), and todictionary () are not executed, this PLINQ is executed only when the loop takes result.Other OptionsIf the results are sorted after parallel execution, you can use: Sourcedata.asparallel (). AsOrdered ().If you want to force concurrent execution to work:Sourcedata.asparallel (). Withexecutionmode (parallelexecu

Co-purchase platform constructionThe emergence of parallel algorithms, along with the creation of parallel collections, and thread-safe collections, Microsoft is thoughtful, did not forget LINQ, also introduced a parallel version of LINQ, Plinq-parallel LINQ.One, parallel collections-thread-safe collectionsParallel computing uses multiple threads to compute at the same time, so to control access to resources for each thread, let's take a look at the u

5 days in the previous blog C # parallel and multithreaded programming--the first day of parallel, we learned how to use parallel. Parallel programming, in essence, is multithreaded programming, so when multiple threads handle a task at the same time, there will inevitably be resource access problems, and so-called thread safety. Just like in reality, we develop projects, is a parallel example, the different modules to different people, at the same time, in order to make a large project in a sho

5 days in the previous blog C # parallel and multithreaded programming--the first day of parallel, we learned how to use parallel. Parallel programming, in essence, is multithreaded programming, so when multiple threads handle a task at the same time, there will inevitably be resource access problems, and so-called thread safety. Just like in reality, we develop projects, is a parallel example, the different modules to different people, at the same time, in order to make a large project in a sho

Namespace microshaoft {using system; using system. LINQ; using system. threading. tasks; using system. threading; using system. collections. generic; using system. collections. concurrent; Class program {static void main (string [] ARGs) {var list =

■ Basic usage of the task classThe task class is a class that improves the Thread class to make it easier to use. Therefore, although the functions are similar, they belong to two concepts and are used differently.To use the task class to start a

. NET parallel implementation methods (3). net parallel This article continued: several parallel methods implemented by. NET (2) In the first two essays, we introduced Thread, ThreadPool, IAsyncResult (APM series), Task, and TPL (Task Parallel Library ). The author suddenly realized that there is another EMP series that has not been written. Here I will add:VI. The typical representatives of the PMNs and PMNs are WebClient: * Async method + *** Completed event encoding specification is adopted i

PLINQ, LINQ 1) First look at the introduction of PLINQ in MSDN: Parallel LINQ (PLINQ) is a parallel implementation of the LINQ pattern.PLINQ queries are similar in many ways to non-parallel LINQ to Objects queries.IEnumerable or IEnumerableAs with the sequential LINQ query, PLINQ queries any in-memory IEnumerable

This article is the third article of. Net parallel computing. You are welcome To take a brick. To read this article, you need To have the basics of LINQ, because parallel LINQ (PLinq) is actually a parallel implementation of LINQ To Object. What is parallel LINQ PLinq is actually a parallel implementation of Linq to Object, and PLINQ will try to make full use

The. NET Framework 4 includes significant advancements for developers writing parallel and concurrent applications, includ ing Parallel LINQ (PLINQ), the Task Parallel Library (TPL), new Thread-safe collections, and a variety of new coordination and synchronization data structures.This is sample includes example applications and library functionality that demonstrate, utilize, and augment this support (i T is not production quality). This sample is a

Brief introductionWhen it's time to optimize for multicore machines, it's a good idea to check if your program has processing to split up for parallel processing. (For example, there is a huge collection of data, where elements require a time-consuming calculation that is independent of each other).Parallel.ForEach and PLINQ are available in the. NET Framework 4 to help us with parallel processing, and this article explores the differences between the

Vs2010 has been released this week.ArticleAll of them are showing new vs2010 experiences. Here I am also sharing the excitement and writing. What is TPL? TPL is short for task parallel library, which is one of the newly added class libraries in framework 4.0. The most famous class libraries are Plinq (speaking of Plinq, you will know in an instant ). However,