Output

The benchmark output includes the following information:

After a benchmark completes, three time values are available, extended over the group of active processes:

The time unit is μ.

Single Transfer Benchmarks:

Display X = message size [bytes], T=Tmax[μsec], bandwidth = X / 1.048576 / T

Parallel Transfer Benchmarks:

Display X = message; size, Tmax, Tmin and Tavg, bandwidth based on time = Tmax

Note

IMB-RMA benchmarks show only bare timings for Parallel Transfer benchmarks.

Collective Benchmarks:

Display X = message size;(except for Barrier), Tmax, Tmin; and Tavg

Results for the multiple mode