Intel® MPI Benchmarks User Guide and Methodology Description

# Iallreduce

The benchmark for `MPI_Iallreduce` that measures communication and computation overlap.

Property | Description
--- | ---
Measured pattern | `MPI_Iallreduce/IMB_cpu_exploit/MPI_Wait`
MPI data type | `MPI_FLOAT`
MPI operation | `MPI_SUM`
Reported timings | `t_ovrl` `t_pure` `t_CPU` `overlap=100.*max(0,min(1, (t_pure+t_CPU-t_ovrl) / min(t_pure, t_CPU))` For details, see Measuring Communication and Computation Overlap.
Reported throughput | None