kjs <[email protected]> writes: > Hello, > > I have written an MPI routine in Python that sends jobs to N worker > processes. The root process handles file IO and the workers do > computation. In the worker processes calls are made to the cuda enabled > GPU to do FFTs. > > Is it safe to have N processes potentially making calls to the same GPU > at the same time? I have not made any amendments to the cuda code[0], > and have little knowledge of what could possibly go wrong.
Yes, the CUDA runtime manages this just fine, in the sense that it is safe. N processes talking to the same GPU may not yield awesome performance though. Andreas
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