IntelĀ® MPI Benchmarks 4.0
File I/O performed by a single process. This pattern mimics the typical case when a particular master process performs all of the I/O. See the basic definitions and a schematic view of the pattern below.
Property |
Description |
---|---|
Measured pattern |
As symbolized in figure I/O benchmarks, aggregation for output |
Elementary I/O action |
As symbolized in the figure below. |
MPI routines for the blocking mode |
MPI_File_write/MPI_File_read |
MPI routines for the nonblocking mode |
MPI_File_iwrite/MPI_File_iread |
etype |
MPI_BYTE |
File type |
MPI_BYTE |
MPI data type |
MPI_BYTE |
Reported timings |
t (in μsec) as indicated in the figure I/O benchmarks, aggregation for output, aggregate and non-aggregate for the Write flavor. |
Reported throughput |
x/t, aggregate and non-aggregate for the Write flavor |