Visible to Intel only — GUID: GUID-30F650CF-1E87-4D4F-AC3B-4E2A692FA151
Visible to Intel only — GUID: GUID-30F650CF-1E87-4D4F-AC3B-4E2A692FA151
Window
This is the benchmark for measuring the overhead of an MPI_Win_create/MPI_Win_fence/MPI_Win_free combination. In the case of an unused window, a negligible non-trivial action is performed inside the window. It minimizes optimization effects of the MPI implementation.
The MPI_Win_fence function is called to properly initialize an access epoch. This is a correction as compared to earlier releases of the Intel(R) MPI Benchmarks.
See the basic definitions and a schematic view of the pattern below.
Window Definition
Property |
Description |
---|---|
Measured pattern |
MPI _Win_create/MPI_Win_ fence/MPI_Win_free |
Reported timings |
t=Δt(M) (in μsec) as indicated in the figure below. |
Reported throughput |
None |