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ParRes / Kernels

This is a set of simple programs that can be used to explore the features of a parallel platform.
https://groups.google.com/forum/#!forum/parallel-research-kernels
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Fortran MPI p2p is buggy #612

Closed jeffhammond closed 1 year ago

jeffhammond commented 2 years ago

Errors with Open-MPI + NVHPC and MPICH + GCC. Adding lots of barriers doesn't fix it.

jhammond@orin:~/PRK/FORTRAN$ make mpi -j && /usr/bin/mpirun.mpich -n 12 ./transpose-p2p-mpi 100 $((12*1000))
make: Nothing to be done for 'mpi'.
Parallel Research Kernels
Fortran MPI Matrix transpose: B = A^T
Number of MPI procs         12
Number of iterations       100
Matrix order             12000
ERROR: Aggregate squared error ******************************exceeds threshold              0.000000010000000
jeffhammond commented 1 year ago

This is too weird. Moving on.