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shmem_team_reduce fails with 32 PEs per node #50

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markbrown314 opened this issue Feb 13, 2025 · 0 comments

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markbrown314 commented Feb 13, 2025

There is a limit of 32 PEs per node on shmem_team_reduce.

This is due PEs being hardcoded. We should make the allocation of PE dynamic

#define MAX_NPES 32
...
    static TYPE src[MAX_NPES]; 
    static TYPE dest[MAX_NPES];
...
    if (npes > MAX_NPES) {
        if (mype == 0)
            fprintf(stderr, "ERR - Requires less than %d PEs\n", MAX_NPES);
        shmem_global_exit(1);
    }

Originally posted on Sandia-OpenSHMEM Github:
Sandia-OpenSHMEM/SOS#1084

markbrown314 added the enhancement label

markbrown314 mentioned this issue

shmem_team_reduce fails with 32 PEs per node on PSM3 Sandia-OpenSHMEM/SOS#1084

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