Opened 5 years ago

Last modified 2 years ago

#1650 new bug

Hydra: Topology information propagation

Reported by: balaji Owned by: balaji
Priority: major Milestone: mpich-3.3
Component: mpich Keywords:
Cc:

Description (last modified by balaji)

Hydra needs to propagate hwloc provided topology information to MPICH. One way to do this would be through a new PMI key "hwloc-xml-topology" if we want to use XML (hwloc already provides it).

This is required for better support for MPI_Comm_split_type as well as for other improvements in MPICH including the topology functions.

Change History (6)

comment:1 Changed 5 years ago by gropp

The PMI v2 design has attributes for this purpose; I believe they're a better fit than the PMI v1 keys, particularly because they have a synchronization semantic that is better for this information.

comment:2 Changed 5 years ago by balaji

  • Milestone changed from mpich2-1.5 to mpich2-1.5.1

comment:3 Changed 5 years ago by balaji

  • Milestone changed from mpich2-1.5.1 to mpich-3.0

Milestone mpich2-1.5.1 deleted

comment:4 Changed 5 years ago by balaji

  • Milestone changed from mpich-3.0 to mpich-3.0.1

comment:5 Changed 4 years ago by balaji

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

comment:6 Changed 2 years ago by balaji

  • Milestone changed from mpich-3.2.1 to mpich-3.3

Milestone mpich-3.2.1 deleted

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