Consider the following code: #pragma omp parallel for (int run = 0; run < 10; run++) { std::vector<int> out; #pragma omp for for (int i = 0; i < 1'000'000; i++) { ... } } ...

I'm struggling to finalise the design of my C++17 library. One of the primary goals is to use runtime polymorphism to allow users to extend or rewrite default features of the library for their own use ...

I'm one of the developers of the Lumen code: https://www.lumen-code.org/. That is computational code for condensed matter physics simulations. We are replacing FORALL with DO CONCURRENT, since FORALL ...

the code below crashes with terminate called after throwing an instance of 'std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >' Aborted ...

So i'm working on some homework related to fixing som buggy code when i ran into an interesting problem. I don't think it was one of the indended bugs because the lecturer was confused by it as well. ...

Overview - simple actuarial model to perform a stochastic simulation on a group of individuals. How it works - In a nutshell, the sequential version works as follows: in each of the nRip iterations, ...

I am optimising a code already parallelised but not very optimised because of the very different duration of operations among the threads, even though all threads have a similar task to do. So I ...

I'm working on porting the CAMB (Cosmological Boltzmann code) to run with hybrid CPU+GPU parallelization using OpenMP and OpenACC with NVIDIA HPC SDK compilers. The code works perfectly when compiled ...

I'm developing an Android app using the NDK that plays MIDI files with FluidSynth, integrated with a Java frontend. The app crashes with a native crash in libomp.so at __kmpc_barrier, and I suspect it'...

I have written some programs with OMP reduction directive in Fortran and in C. But the data types were simple (int, float, arrays with fixed size, ...) and reduction-identifiers used were implicitly ...

We are working with the following code: int i, j, k; for (i = 2; i < n; i++){ // S1 for (j = 3; j < n - 3; j++){ // S2 for (k = 4; k < n - 4; k++){ // S3 A[...

I am currently trying to porting a big portion of a Fortran code to GPU devices with OpenMP. I have a working version for AMD, specifically for the MI300A which features unified shared memory. I ...

My program needs to perform some heavy calculations on all widgets in the box. The calculations are repeated an appreciable number of times processing multiple variations of each widget. All of the ...

I'm implementing a bitwise Radix Sort to sort an array of 64-bit unsigned integers (key_t is uint_fast64_t) that represent encoded points. I have two versions of the algorithm: One using OpenMP only ✅...

I am reading the OMP documentation (6.0) about atomic operations. As I came across clauses I read about write and update. I understand the difference between the two: write is used to atomically ...