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CrayXEPort_obsolete

Howard Pritchard edited this page Aug 16, 2016 · 1 revision

This page is obsolete.

Cray XE Port

Development branch

https://svn.open-mpi.org/svn/ompi/tmp/cray-xe

Run-time

  • Would like to support direct launch using PMI
  • SNL and LANL are going to refactor the various PMI codes to make more sense

Point-to-point engine (BTL)

  • Manju has sent out protocol performance comparison data
  • Need to start collecting undocumented pieces of wisdom (what works, what doesn't, performance tuning, etc.)
  • Design goals: scalability vs. performance, etc.

Collectives

  • MPICH2 currently uses DMAPP for some collectives to improve performance, do we need to do the same?
  • Any issues in sharing DMAPP and uGNI in the same process?

One-sided

  • No plans at this time.
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