Visible to Intel only — GUID: GUID-BF133EF8-EBA5-4DAD-8F3E-974E41E132A8
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-BF133EF8-EBA5-4DAD-8F3E-974E41E132A8
Allgatherv
The benchmark for the MPI_Allgatherv function. Every process inputs X bytes and receives the gathered X*np bytes, where np is the number of processes.
Unlike Allgather, this benchmark shows whether MPI produces overhead.
Property |
Description |
---|---|
Measured pattern |
MPI_Allgatherv |
MPI data type |
MPI_BYTE |
Reported timings |
Bare time |
Reported throughput |
None |