parallel processing - Why does my MPI program runs normally when I run it on my computer, but freezes/runs indefinitely long when I run it on my university supercomputer?

Question

I'm doing an university project on the topic of parallel computing. I've created a program that solves a system of linear equations using conjugate gradients method: https://github.com/ChrysoliteAzalea/ConjugateGradients

Here is the problem: This program runs normally when I run it on my own computer, but when I try to run it on the supercomputer, it runs indefinitely long (I waited for some time and squeue said it was still running, despite older versions worked fine). What can be the problem?

question from:https://stackoverflow.com/questions/65952837/why-does-my-mpi-program-runs-normally-when-i-run-it-on-my-computer-but-freezes

Answer 1

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