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
Get_local
This benchmark measures the combination of MPI_Get and MPI_Win_flush_all operations in passive target communication mode. The benchmark runs on two active processes. The target process is waiting in the MPI_Barrier call. Since local completion of the MPI_Get operation at the origin side is semantically equivalent to a regular completion, performance results are expected to be very close to the Unidir_Get benchmark results.
NOTE:
This benchmark is not enabled in IMB-RMA by default. Specify the benchmark name in the command line or use the –include command-line parameter to run this benchmark.
Property |
Description |
---|---|
Measuredpattern |
MPI_Get/MPI_Win_flush_local |
MPI data type |
MPI_BYTE (origin and target) |
Reportedtimings |
Bare time |
Reportedthroughput |
MBps |