parallel-processing Archives

Programming, Python

IT Nursery

What are the differences between the threading and multiprocessing modules?

I am learning how to use the threading and the multiprocessing modules in Python to run certain operations in parallel and speed up ...

June 4, 2022
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C#, Programming

IT Nursery

No ConcurrentList in .Net 4.0?

I was thrilled to see the new System.Collections.Concurrent namespace in .Net 4.0, quite nice! I’ve seen ConcurrentDictionary, ConcurrentQueue, ConcurrentStack, ConcurrentBag and BlockingCollection. One ...

May 28, 2022
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Is there an equivalent to ‘continue’ in a Parallel.ForEach?

I am porting some code to Parallel.ForEach and got an error with a continue I have in the code. Is there something equivalent ...

May 17, 2022
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Optimal number of threads per core

Let’s say I have a 4-core CPU, and I want to run some process in the minimum amount of time. The process is ...

May 14, 2022
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How do you run multiple programs in parallel from a bash script?

I am trying to write a .sh file that runs many programs simultaneously I tried this prog1 prog2 But that runs prog1 then ...

May 9, 2022
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What is the difference between asynchronous programming and multithreading?

I thought that they were basically the same thing — writing programs that split tasks between processors (on machines that have 2+ processors). ...

May 9, 2022
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What is the difference between concurrent programming and parallel programming?

What is the difference between concurrent programming and parallel programing? I asked google but didn’t find anything that helped me to understand that ...

May 9, 2022
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How do I parallelize a simple Python loop?

This is probably a trivial question, but how do I parallelize the following loop in python? # setup output lists output1 = list() ...

May 8, 2022
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How to wait for all threads to finish, using ExecutorService?

I need to execute some amount of tasks 4 at a time, something like this: ExecutorService taskExecutor = Executors.newFixedThreadPool(4); while(...) { taskExecutor.execute(new MyTask()); ...

May 6, 2022
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Custom thread pool in Java 8 parallel stream

Is it possible to specify a custom thread pool for Java 8 parallel stream? I can not find it anywhere. Imagine that I ...

May 5, 2022
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