Ok I have dug into this more. Is this PMI the Slurm process manager? To use OpenMPI on Phi just build OPenMPI for it? Does that mean I need to add CFLAGS FCFLAGS -mmic ?
How does one go about doing multi-phi MPI code? Brock Palen www.umich.edu/~brockp CAEN Advanced Computing XSEDE Campus Champion bro...@umich.edu (734)936-1985 On May 16, 2014, at 5:40 PM, Hjelm, Nathan T <hje...@lanl.gov> wrote: > PMI != phi. If you want to build for phi you will have to make two builds. > One for the host and one for the phi. > > Take a look in contrib/platform/lanl/darwin to get an idea of how to build > for phi. The optimized-mic has most of what is needed to build a Phi version > of Open MPI. > > I usually run: > > mkdir build-host ; cd build-host ; ../configure --prefix=path_to_host_build > --with-platform=../contrib/platform/lanl/darwin/optimized ; make install > cd ../ > mkdir build-pbi ; cd build-phi ; ../configure --prefix=path_to_phi_build > --with-platform=..//contrib/platform/lanl/darwin/optimized-mic ; make install > > > I then modify the share/openmpi/mpicc-wrapper-data.txt to add a section for > -mmic and have it point to the phi build. This is a bit complicated but it > works well since mpicc -mmic with then use the phi libraries. I can give you > a sample modified wrapper if you like. > > -Nathan Hjelm > HPC-5, LANL > ________________________________________ > From: users [users-boun...@open-mpi.org] on behalf of Brock Palen > [bro...@umich.edu] > Sent: Friday, May 16, 2014 3:31 PM > To: Open MPI Users > Subject: [OMPI users] Enable PMI build > > We are looking at enabling the use of OpenMPI on our Xeon Phis, > > One comment, i'm not sure that most users will know that pmi means phi, > --with-pmi(=DIR) Build PMI support, optionally adding DIR to the > search path (default: no) > > how about: > --with-pmi(=DIR) Build PMI support for the Xeon Phi/MIC, optionally > adding DIR to the > search path (default: no) > > > Second, digging in my mpss install I am not finding pmi.h or anything like > that that searching the mailing list shows. We recently found that Intel made > a lot of changes to the MPSS stack and this Phi stuff is very infantile at > the moment so minimal (decent) documentation, does anyone know what current > package provides PMI for the Xeon Phi? > > Thanks! > > Brock Palen > www.umich.edu/~brockp > CAEN Advanced Computing > XSEDE Campus Champion > bro...@umich.edu > (734)936-1985 > > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
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