IntelĀ® MPI Benchmarks User Guide and Methodology Description
The benchmark for the MPI_Ireduce function that measures pure communication time. 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 |
|---|---|
|
Measured pattern |
MPI_Ireduce/MPI_Wait |
|
MPI data type |
MPI_FLOAT |
|
MPI operation |
MPI_SUM |
|
Root |
i%num_procs in iteration i |
|
Reported timings |
Bare time |
|
Reported throughput |
None |