Visible to Intel only — GUID: GUID-67F57D1C-651C-43CC-B008-BA40471D0D87
Visible to Intel only — GUID: GUID-67F57D1C-651C-43CC-B008-BA40471D0D87
P_[ACTION]_priv
This pattern tests the case when all participating processes perform concurrent I/O to different private files. This benchmark is particularly useful for the systems that allow completely independent I/O operations from different processes. The benchmark pattern is expected to show parallel scaling and obtain optimum results. See the basic definitions and a schematic view of the pattern below.
P_[ACTION]_priv Definition
Property |
Description |
---|---|
Measured pattern |
As symbolized in the figure I/O benchmarks, aggregation for output |
Elementary I/Oaction |
As symbolized in the figure below. In this figure, Nproc is the number of processes. |
MPI routines for theblocking mode |
MPI_File_w rite/MPI_File_read |
MPI routines for thenonblocking mode |
MPI_File_iwr ite/MPI_File_iread |
etype |
MPI_BYTE |
File type |
MPI_BYTE |
MPI data type |
MPI_BYTE |
Reported timings |
Δt (in μsec), aggregate and non-aggregate for the Write flavor. |
Reported throughput |
x/Δt, aggregate and non-aggregate for the Write flavor |