Intel® MPI Benchmarks 4.0
This benchmark tests the MPI_Get operation where one active process obtains data from all other processes. All target processes are waiting in the MPI_Barrier call, while the active process performs the transfers. The completion of the origin process is ensured by the MPI_Win_flush_local_all operation. Since local completion of the MPI_Get operation is semantically equivalent to a regular completion, the benchmark flow is very similar to the One_get_all benchmark.
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 |
---|---|
Measured pattern |
(N*MPI_Get)/MPI_Win_flush_local_all, where N is the number of target processes |
MPI data type |
MPI_BYTE (origin and target) |
Reported timings |
Bare time |
Reported throughput |
MBps |