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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
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IMB-EXT Benchmarks
This section provides definitions of IMB-EXT benchmarks. The benchmarks can run with varying transfer sizes X, in bytes. The timings are averaged over multiple samples. See the Benchmark Methodology section for details. In the definitions below, a single sample with a fixed transfer size X is used.
The Unidir and Bidir benchmarks are exact equivalents of the message passing PingPong and PingPing, respectively. Their interpretation and output are analogous to their message passing equivalents.