User Guide

  • 2021.5
  • 06/28/2021
  • 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

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.