IntelĀ® MPI Benchmarks User Guide and Methodology Description
The benchmark for the MPI_Iallgatherv function that measures pure communication time. Every process inputs X bytes and receives the gathered X*np bytes, where np is the number of processes. Unlike Iallgather_pure, this benchmark shows whether MPI produces overhead.
|
Property |
Description |
|---|---|
|
Measured pattern |
MPI_Iallgatherv/MPI_Wait |
|
MPI data type |
MPI_BYTE |
|
Reported timings |
Bare time |
|
Reported throughput |
None |