Thanks, in my preliminary evaluation of MPICH with OFI, I don't see an issue.
On Mon, Jun 25, 2018 at 9:28 AM Hefty, Sean <[email protected]> wrote: > Actually copying the psm/psm2 provider maintainer this time. But, MPICH > should work. > > - Sean > > > -----Original Message----- > > From: ofiwg [mailto:[email protected]] On Behalf Of > > Hefty, Sean > > Sent: Friday, June 22, 2018 4:53 PM > > To: Sayan Ghosh <[email protected]> > > Cc: [email protected] > > Subject: Re: [ofiwg] GASNet with OFI on PSM provider > > > > OFI does work over PSM. However, the psm and psm2 providers do not > > support the same OFI feature set. You can see the differences here: > > > > https://github.com/ofiwg/libfabric/wiki/Provider-Feature-Matrix-master > > > > I'm not familiar enough with the GasNET implementation to know what > > feature it needs. > > > > I'm copying the developer who maintains both the psm and psm2 > > providers. He can provide more details on what differences there are > > between psm and psm2, and *might* know if GasNET should work over the > > psm provider. Unfortunately, the developer who ported GasNET to OFI > > is not available. > > > > - Sean > > > > > > > -----Original Message----- > > > From: Sayan Ghosh [mailto:[email protected]] > > > Sent: Friday, June 22, 2018 4:39 PM > > > To: Hefty, Sean <[email protected]> > > > Cc: [email protected] > > > Subject: Re: [ofiwg] GASNet with OFI on PSM provider > > > > > > Hi Sean - Sorry if it is evident, but I just wanted to clarify > > > something. Since OFI has a PSM provider, can I assume that it works? > > I > > > am asking because you said "OFI targets Omni Path". > > > > > > On Wed, Jun 20, 2018 at 12:08 PM Hefty, Sean <[email protected] > > > <mailto:[email protected]> > wrote: > > > > > > > > > To clarify, I meant GASNet to TrueScale through OFI. GASNet > > should > > > have a psm-conduit. OFI targets Omni-Path. > > > > > > > > > > > > - Sean > > > > > > > > > > > > > > > > > > > > > > > > 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] > > > <mailto:[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/ > > > > > > > > > > > > -- > > > > > > Sayan | https://sg0.github.io/ > > > > _______________________________________________ > > ofiwg mailing list > > [email protected] > > http://lists.openfabrics.org/mailman/listinfo/ofiwg > -- Sayan | https://sg0.github.io/
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