Opened 6 years ago

Last modified 23 months ago

#1612 new bug

MPI_Comm_split_type improvements

Reported by: balaji Owned by: balaji
Priority: major Milestone: mpich-3.3
Component: mpich Keywords:
Cc: michael.blocksome@…, jhammond

Description (last modified by balaji)

The current implementation of MPI_Comm_split_type segments out all processes on the node as processes that can create a shared memory segment. The info argument is not respected.

This ticket tracks improvements to this functionality to allow the user to create "node", "socket", "die", "core", "l1-cache", etc., locales that can be passed in through the info key.

Change History (9)

comment:1 Changed 5 years ago by balaji

  • Milestone changed from mpich2-1.5 to mpich2-1.5.1

comment:2 Changed 5 years ago by balaji

  • Milestone changed from mpich2-1.5.1 to mpich-3.0

Milestone mpich2-1.5.1 deleted

comment:3 Changed 5 years ago by balaji

  • Milestone changed from mpich-3.0 to mpich-3.0.1

comment:4 Changed 4 years ago by balaji

  • Description modified (diff)
  • Milestone changed from mpich-3.1 to mpich-3.2

comment:5 Changed 4 years ago by blocksom

  • Cc blocksom@… added

comment:6 Changed 3 years ago by jhammond

  • Cc michael.blocksome@… added; blocksom@… removed

comment:7 Changed 2 years ago by balaji

  • Milestone changed from mpich-3.2.1 to mpich-3.3

Milestone mpich-3.2.1 deleted

comment:8 Changed 2 years ago by jhammond

  • Cc jhammond added

comment:9 Changed 23 months ago by jhammond

Cross-reference Rob's email indicating that he is working on this: http://lists.mpich.org/pipermail/devel/2015-November/000663.html.

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