Visible to Intel only — GUID: GUID-FA178271-393C-4809-89D1-3857F86570F9
Measuring Communication and Computation Overlap
Measuring Pure Communication Time
Iallgather
Iallgather_pure
Iallgatherv
Iallgatherv_pure
Iallreduce
Iallreduce_pure
Ialltoall
Ialltoall_pure
Ialltoallv
Ialltoallv_pure
Ibarrier
Ibarrier_pure
Ibcast
Ibcast_pure
Igather
Igather_pure
Igatherv
Igatherv_pure
Ireduce
Ireduce_pure
Ireduce_scatter
Ireduce_scatter_pure
Iscatter
Iscatter_pure
Iscatterv
Iscatterv_pure
Visible to Intel only — GUID: GUID-FA178271-393C-4809-89D1-3857F86570F9
Reduce_scatter
The benchmark for the MPI_Reduce_scatter function. It reduces a vector of length L = X/sizeof(float)*np float items. The MPI data type is MPI_FLOAT. The MPI operation is MPI_SUM. In the scatter phase, the L items are split as evenly as possible.
Property |
Description |
---|---|
Measured pattern |
MPI_Reduce_scatter |
MPI data type |
MPI_FLOAT |
MPI operation |
MPI_SUM |
Reported timings |
Bare time |
Reported throughput |
None |