Visible to Intel only — GUID: GUID-270C55BE-99CF-4B95-8AB5-3A32C8A55928
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-270C55BE-99CF-4B95-8AB5-3A32C8A55928
Reduce
The benchmark for the MPI_Reduce function. It reduces a vector of length L = X/sizeof(float) float items. The MPI data type is MPI_FLOAT. The MPI operation is MPI_SUM. The root of the operation is changed round-robin.
Property |
Description |
---|---|
Measuredpattern |
MPI_Reduce |
MPI data type |
MPI_FLOAT |
MPI operation |
MPI_SUM |
Root |
i%num_procs in iteration i |
Reportedtimings |
Bare time |
Reportedthroughput |
None |