IntelĀ® MPI Benchmarks User Guide and Methodology Description
PingPing and PingPingSpecificSource measure startup and throughput of single messages that are obstructed by oncoming messages. To achieve this, two processes communicate with each other using MPI_Isend/MPI_Recv/MPI_Wait calls. The MPI_Isend calls are issued simultaneously by both processes. For destination rank, PingPing uses the MPI_ANY_SOURCE value, while PingPingSpecificSource uses an explicit value.
Property |
Description |
---|---|
Measured pattern |
As symbolized between |
MPI routines |
MPI_Isend/MPI_Wait, MPI_Recv |
MPI data type |
MPI_BYTE |
Reported timings |
time=Δt (in μsec) |
Reported throughput |
X/(1.048576*time) |