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Feature #19736

Shmem_transfer partition awareness

Added by Eric Flumerfelt over 2 years ago.

Status:
Closed
Priority:
Normal
Category:
Additional Functionality
Target version:
Start date:
04/17/2018
Due date:
% Done:

0%

Estimated time:
Experiment:
-
Co-Assignees:
Duration:

Description

Instead of using the hash of the unique_label, Shmem_transfer now uses the partition number (0-127), the source rank and the destination rank to create the shared memory key.
0x[Partition number 00-7F][Source rank 000-FFF][Destination rank 000-FFF]

This can be overridden using the shm_key parameter and changed using the shm_key_offset parameter.



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