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1 vote
1 answer
119 views

I have the below code (whole code is here) that polls a queue for runnables and parks itself if the queue is empty. public void waitAndDrain() throws InterruptedException { throwIfInterrupted(); ...
2 votes
1 answer
161 views

In order to guard a code section against repeat or concurrent execution we can use Interlocked functionality. Guarding against repeat execution is necessary for things like Dispose(), and guarding ...
4 votes
1 answer
93 views

I'm trying to learn Cuda and I'm having trouble to wrap my head around warps and lanes in them. A lane is the word I use for threads inside of the same warp. I can exchange data between lanes as ...
-3 votes
2 answers
186 views

This is basic task synchronization 101 but I can't find search terms that tell me what I need to know. And I'm sure it's a dup here. The classic task synchronization reader/writer problem is you have ...
1 vote
1 answer
217 views

The SemaphoreSlim exposes Wait() and WaitAsync(). Why did they choose to do this? Imagine I am protecting fields in a class. This class has some properties (synchronous), as some async methods. We ...
3 votes
2 answers
149 views

Being a beginner with CUDA my naive model of the following simple kernel __global__ void sumColumns(float* d_a, float* d_sum, int n) { if (blockIdx.x < 2 && threadIdx.x < n) { ...
5 votes
3 answers
250 views

I came across this blog post by Stephen Toub, demonstrating how to implement an AsyncManualResetEvent: https://devblogs.microsoft.com/dotnet/building-async-coordination-primitives-part-1-...
2 votes
0 answers
128 views

I am trying to create a type capable of sending and receiving traffic on a socket for a real-time application. I am envisioning a system where this type manages two concurrent queues: one for inbound ...
0 votes
1 answer
118 views

I'm facing the problem of reducing values to threads in warps that shares the same variable's content. More specifically, in order to avoid atomic add operation on the an array i'm evaluating ...
0 votes
1 answer
111 views

There is a question in my homework: Use mutex to achieve thread synchronization using the Windows API. I tried using two mutexes to achieve this, but I failed because I found out that a thread cannot ...
0 votes
3 answers
117 views

Problem: I'm learning Java based on the book by Herbert Schildt "Java The Complete Reference Tenth Edition". I’m working on a Java program with multiple threads, and I'm expecting the output ...
2 votes
0 answers
188 views

I am facing an issue in my program, where I am freeing an object CalcTree which is class type of TVirtualStringTree. This object is used in our program for calculation purposes only. So, while ...
2 votes
1 answer
120 views

In my C++17 application I have a thread that runs an endless loop, doing some work (taking some seconds each time) in each iteration. Now I want to wait in another thread (or in multiple other threads)...
2 votes
2 answers
174 views

I am pretty new to multithreading and want to understand it better. I want to now how to make an array threadsafe in Java? Meaning I have several threads accessing and changing the data in the array ...
0 votes
2 answers
150 views

I am a 4th year university student who is working on a Parallel computing course project. I have made a very bad decision in selecting the right algorithm to show case the gpu performance compared ...

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