<div dir="ltr">Thanks, in my preliminary evaluation of MPICH with OFI, I don't see an issue. </div><br><div class="gmail_quote"><div dir="ltr">On Mon, Jun 25, 2018 at 9:28 AM Hefty, Sean <<a href="mailto:sean.hefty@intel.com" target="_blank">sean.hefty@intel.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Actually copying the psm/psm2 provider maintainer this time. But, MPICH should work.<br>
<br>
- Sean<br>
<br>
> -----Original Message-----<br>
> From: ofiwg [mailto:<a href="mailto:ofiwg-bounces@lists.openfabrics.org" target="_blank">ofiwg-bounces@lists.openfabrics.org</a>] On Behalf Of<br>
> Hefty, Sean<br>
> Sent: Friday, June 22, 2018 4:53 PM<br>
> To: Sayan Ghosh <<a href="mailto:zsayanz@gmail.com" target="_blank">zsayanz@gmail.com</a>><br>
> Cc: <a href="mailto:ofiwg@lists.openfabrics.org" target="_blank">ofiwg@lists.openfabrics.org</a><br>
> Subject: Re: [ofiwg] GASNet with OFI on PSM provider<br>
> <br>
> OFI does work over PSM. However, the psm and psm2 providers do not<br>
> support the same OFI feature set. You can see the differences here:<br>
> <br>
> <a href="https://github.com/ofiwg/libfabric/wiki/Provider-Feature-Matrix-master" rel="noreferrer" target="_blank">https://github.com/ofiwg/libfabric/wiki/Provider-Feature-Matrix-master</a><br>
> <br>
> I'm not familiar enough with the GasNET implementation to know what<br>
> feature it needs.<br>
> <br>
> I'm copying the developer who maintains both the psm and psm2<br>
> providers. He can provide more details on what differences there are<br>
> between psm and psm2, and *might* know if GasNET should work over the<br>
> psm provider. Unfortunately, the developer who ported GasNET to OFI<br>
> is not available.<br>
> <br>
> - Sean<br>
> <br>
> <br>
> > -----Original Message-----<br>
> > From: Sayan Ghosh [mailto:<a href="mailto:zsayanz@gmail.com" target="_blank">zsayanz@gmail.com</a>]<br>
> > Sent: Friday, June 22, 2018 4:39 PM<br>
> > To: Hefty, Sean <<a href="mailto:sean.hefty@intel.com" target="_blank">sean.hefty@intel.com</a>><br>
> > Cc: <a href="mailto:ofiwg@lists.openfabrics.org" target="_blank">ofiwg@lists.openfabrics.org</a><br>
> > Subject: Re: [ofiwg] GASNet with OFI on PSM provider<br>
> ><br>
> > Hi Sean - Sorry if it is evident, but I just wanted to clarify<br>
> > something. Since OFI has a PSM provider, can I assume that it works?<br>
> I<br>
> > am asking because you said "OFI targets Omni Path".<br>
> ><br>
> > On Wed, Jun 20, 2018 at 12:08 PM Hefty, Sean <<a href="mailto:sean.hefty@intel.com" target="_blank">sean.hefty@intel.com</a><br>
> > <mailto:<a href="mailto:sean.hefty@intel.com" target="_blank">sean.hefty@intel.com</a>> > wrote:<br>
> ><br>
> ><br>
> > To clarify, I meant GASNet to TrueScale through OFI. GASNet<br>
> should<br>
> > have a psm-conduit. OFI targets Omni-Path.<br>
> ><br>
> ><br>
> ><br>
> > - Sean<br>
> ><br>
> ><br>
> ><br>
> ><br>
> ><br>
> ><br>
> ><br>
> > This is my understanding as well. I don’t believe GASNet is a<br>
> target<br>
> > application for TrueScale or PSM. The high performance interface<br>
> for<br>
> > TrueScale is PSM, rather than verbs, and targets older MPI<br>
> > implementations.<br>
> ><br>
> ><br>
> ><br>
> > - Sean<br>
> ><br>
> ><br>
> ><br>
> ><br>
> ><br>
> > From: ofiwg [mailto:<a href="mailto:ofiwg-bounces@lists.openfabrics.org" target="_blank">ofiwg-bounces@lists.openfabrics.org</a>] On<br>
> Behalf Of<br>
> > Sayan Ghosh<br>
> > Sent: Wednesday, June 20, 2018 9:17 AM<br>
> > To: <a href="mailto:ofiwg@lists.openfabrics.org" target="_blank">ofiwg@lists.openfabrics.org</a><br>
> > <mailto:<a href="mailto:ofiwg@lists.openfabrics.org" target="_blank">ofiwg@lists.openfabrics.org</a>><br>
> > Subject: Re: [ofiwg] GASNet with OFI on PSM provider<br>
> ><br>
> ><br>
> ><br>
> > Just wanted to clarify that a discussion with GASNet developers<br>
> > revealed that their PSM provider compatibility over OFI is only for<br>
> > PSM2 (since TrueScale is an old technology).<br>
> ><br>
> > <a href="https://groups.google.com/a/lbl.gov/forum/#!topic/gasnet-" rel="noreferrer" target="_blank">https://groups.google.com/a/lbl.gov/forum/#!topic/gasnet-</a><br>
> > users/1Y_mDmdcCDw<br>
> ><br>
> ><br>
> ><br>
> > On Tue, Jun 19, 2018 at 10:44 PM Sayan Ghosh <<a href="mailto:zsayanz@gmail.com" target="_blank">zsayanz@gmail.com</a><br>
> > <mailto:<a href="mailto:zsayanz@gmail.com" target="_blank">zsayanz@gmail.com</a>> > wrote:<br>
> ><br>
> > I am trying to install GASNet 1.30.0 using OFI on an Intel<br>
> TrueScale<br>
> > network (PSM provider), and although OFI fi_info detects PSM<br>
> provider<br>
> > (see attached output of fi_info), when I mention it during GASNet<br>
> > configure (config.log attached, please see line #10126), GASNet<br>
> > warns:<br>
> ><br>
> ><br>
> ><br>
> > WARNING: Invalid or unsupported OFI provider specified via<br>
> the<br>
> > --with-ofi-provider flag.<br>
> ><br>
> > Defaulting to runtime provider feature detection for ofi-<br>
> conduit.<br>
> ><br>
> ><br>
> ><br>
> ><br>
> > GASNet configuration:<br>
> ><br>
> ><br>
> ><br>
> > CC=icc CXX=icpc MPI_CC=/home/sghosh/builds/mvapich222-<br>
> > intel-psm/bin/mpicc MPI_CFLAGS="-I/home/sghosh/builds/mvapich222-<br>
> > intel-psm/include" MPI_LIBS="-L/home/sghosh/builds/mvapich222-intel-<br>
> > psm/lib -lpciaccess -lnuma -lxml2" ./configure --<br>
> > prefix=/home/sghosh/builds/gasnet-ofi --enable-ofi --with-ofi-<br>
> > home=/home/sghosh/builds/libfabric --disable-psm --disable-ibv --<br>
> with-<br>
> > ofi-spawner=mpi --with-ofi-provider=psm<br>
> ><br>
> ><br>
> ><br>
> > GASNet throws this warning during application execution:<br>
> ><br>
> ><br>
> ><br>
> > WARNING: Using OFI provider (verbs;ofi_rxm), which has not<br>
> been<br>
> > validated to provide<br>
> ><br>
> > WARNING: acceptable GASNet performance. You should<br>
> consider using a<br>
> > more<br>
> ><br>
> > WARNING: hardware-appropriate GASNet conduit. See ofi-<br>
> > conduit/README.<br>
> ><br>
> > *** FATAL ERROR: The statically-determined value for<br>
> > GASNETC_OFI_HAS_MR_SCALABLE=1 does<br>
> ><br>
> > not match the memory registration support that the<br>
> > (verbs;ofi_rxm) provider reported.<br>
> ><br>
> > This could happen if a provider that previously only<br>
> supported<br>
> > FI_MR_BASIC<br>
> ><br>
> > added support for FI_MR_SCALABLE, or if the wrong<br>
> provider was<br>
> > selected at runtime.<br>
> ><br>
> > Use configure option --disable-ofi-mr-scalable to<br>
> correct this.<br>
> ><br>
> ><br>
> ><br>
> > Instead of picking up psm, GASNet picks up verbs. I have<br>
> reported<br>
> > this issue on GASNet user list as well. Please let me know if I can<br>
> > try some options in building libfabrics for PSM provider, that may<br>
> fix<br>
> > this issue.<br>
> ><br>
> ><br>
> ><br>
> > --<br>
> ><br>
> > Thanks,<br>
> ><br>
> > Sayan | <a href="https://sg0.github.io/" rel="noreferrer" target="_blank">https://sg0.github.io/</a><br>
> ><br>
> ><br>
> ><br>
> ><br>
> ><br>
> ><br>
> > --<br>
> ><br>
> > Sayan | <a href="https://sg0.github.io/" rel="noreferrer" target="_blank">https://sg0.github.io/</a><br>
> ><br>
> ><br>
> ><br>
> > --<br>
> ><br>
> > Sayan | <a href="https://sg0.github.io/" rel="noreferrer" target="_blank">https://sg0.github.io/</a><br>
> <br>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="m_-3807429314856423229gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><span style="font-size:small">S</span><span style="font-size:12.8px">ayan | </span><span style="font-size:12.8px"><a href="https://sg0.github.io/" target="_blank">https://sg0.github.io/</a></span><br></div></div></div></div></div></div></div></div></div></div></div></div>