Replaces mpp_recv and mpp_send and uses mpi_gather and mpi_scatterv within mpp_scatter_pelist #1240
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@ganganoaa - can you include this new version in parallel with the existing version? This will allow us evaluate performance in many different scenarios via different test cases. |
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It has issues with non-MPI compilation. So, I am updating it. |
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Description
The original mpp_scatter used point-to-point communications: _mpp_recv and mpp_send to gather at and scatter from the root pe. This update replaces the point-to-point communications and uses standard collective communications: mpi_gather and mpi_scatterv to achieve the data transfer.
Fixes # (issue)
How Has This Been Tested?
Tested locally with Intel oneAPI (v2023.1.0); intel ifort (v2021.9.0).
Checklist:
make distcheckpasses