| 2:46:59 AM PDT - Tue, Sep 23rd 2014 |
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It's been a while, but I had no issues running NWChem on SGI ICE with ARMCI-MPI (http://wiki.mpich.org/armci-mpi/index.php/NWChem). I don't know if SGI's implementation of MPI-3 is generally available but I was using it without issues on their in-house systems almost a year ago.
Because SGI ICE is a shared-memory system, you can just build MPICH from source and the RMA performance will be just fine. Collectives not so much, but those are not even close to being a bottleneck.
If you want to follow up on the topic of ARMCI-MPI, please use http://wiki.mpich.org/armci-mpi/index.php/Main_Page#Mailing_Lists. I do not monitor this forum.
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