CrayXEPort_obsolete

This page is obsolete.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.