User Guide

  • 2020 Update 2
  • 07/28/2020
  • Public Content

Message Sizes Summary for All Ranks

Key:
-m [--message_sizes]
This charts contains summary for all message sizes. This information can be especially useful for the Intel® MPI Library internal thresholds tuning.

Example

| Message Sizes summary for all ranks |----------------------------------------------------------------------------------------------------- | Message size(B)       Volume(MB)        Volume(%)        Transfers        Time(sec)          Time(%) |-----------------------------------------------------------------------------------------------------                 0             0.00             0.00          1353910            11.36            42.94                 4             0.80             0.00           209360             4.83            18.26           4194304          8148.00            12.12             2037             1.59             6.01             65536          7766.06            11.55           124257             1.14             4.29           2097152          7954.00            11.83             3977             1.10             4.17            131072          7772.12            11.56            62177             1.09             4.13            262144          7784.25            11.58            31137             1.07             4.04           1048576          7857.00            11.69             7857             1.06             4.01            524288          7808.50            11.62            15617             1.05             3.95             32768          6065.53             9.02           194097             0.68             2.58             16384          3032.77             4.51           194097             0.40             1.51 | [filtered out 15 lines] |===================================================================================================== | TOTAL                   67220.46           100.00          4394694            26.46           100.00

Chart Entries

Columns
Rows
Message size(B)
Message size (in bytes)
Volume(MB)
Amount of data transferred by messages of this size (in megabytes)
Volume(%)
Percentage of amount of data transferred by messages of this size
Transfers
Number of messages of this size
Time
(sec)
Total transfer time of messages of this size (in seconds)
Time
(%)
Percentage of transfer time of messages of this size
TOTAL
Total values for all columns

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804