This is my understanding as well. I don’t believe GASNet is a target application for TrueScale or PSM. The high performance interface for TrueScale is PSM, rather than verbs, and targets older MPI implementations.
- Sean From: ofiwg [mailto:[email protected]] On Behalf Of Sayan Ghosh Sent: Wednesday, June 20, 2018 9:17 AM To: [email protected] Subject: Re: [ofiwg] GASNet with OFI on PSM provider Just wanted to clarify that a discussion with GASNet developers revealed that their PSM provider compatibility over OFI is only for PSM2 (since TrueScale is an old technology). https://groups.google.com/a/lbl.gov/forum/#!topic/gasnet-users/1Y_mDmdcCDw On Tue, Jun 19, 2018 at 10:44 PM Sayan Ghosh <[email protected]<mailto:[email protected]>> wrote: I am trying to install GASNet 1.30.0 using OFI on an Intel TrueScale network (PSM provider), and although OFI fi_info detects PSM provider (see attached output of fi_info), when I mention it during GASNet configure (config.log attached, please see line #10126), GASNet warns: WARNING: Invalid or unsupported OFI provider specified via the --with-ofi-provider flag. Defaulting to runtime provider feature detection for ofi-conduit. GASNet configuration: CC=icc CXX=icpc MPI_CC=/home/sghosh/builds/mvapich222-intel-psm/bin/mpicc MPI_CFLAGS="-I/home/sghosh/builds/mvapich222-intel-psm/include" MPI_LIBS="-L/home/sghosh/builds/mvapich222-intel-psm/lib -lpciaccess -lnuma -lxml2" ./configure --prefix=/home/sghosh/builds/gasnet-ofi --enable-ofi --with-ofi-home=/home/sghosh/builds/libfabric --disable-psm --disable-ibv --with-ofi-spawner=mpi --with-ofi-provider=psm GASNet throws this warning during application execution: WARNING: Using OFI provider (verbs;ofi_rxm), which has not been validated to provide WARNING: acceptable GASNet performance. You should consider using a more WARNING: hardware-appropriate GASNet conduit. See ofi-conduit/README. *** FATAL ERROR: The statically-determined value for GASNETC_OFI_HAS_MR_SCALABLE=1 does not match the memory registration support that the (verbs;ofi_rxm) provider reported. This could happen if a provider that previously only supported FI_MR_BASIC added support for FI_MR_SCALABLE, or if the wrong provider was selected at runtime. Use configure option --disable-ofi-mr-scalable to correct this. Instead of picking up psm, GASNet picks up verbs. I have reported this issue on GASNet user list as well. Please let me know if I can try some options in building libfabrics for PSM provider, that may fix this issue. -- Thanks, Sayan | https://sg0.github.io/ -- Sayan | https://sg0.github.io/
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