Thank you Nathan, this is what I was looking for. I'll try to build OpenMPI 1.8 and get back to this thread if I run into issues.
Saliya On Wed, Apr 16, 2014 at 5:19 PM, Nathan Hjelm <hje...@lanl.gov> wrote: > You do not need CCM to use Open MPI on with Gemini and Aries. Open MPI > has natively supported both networks since 1.7.0. Please take a look at > the platform files in contrib/platform/lanl/cray_xe6 for CLE 4.1 > support. You should be able to just build using: > > configure --with-platform=contrib/platform/lanl/cray_xe6/optimized-lustre > > If you also enable the Java interfaces you should be up and running with > Gemini. Keep in mind you can use either mpirun or aprun to launch. You > will get a warning message from PMI (there is an open bug on this) when > using mpirun but it is harmless. > > If you want more info on the XE, XK, and XC support feel free to ask on > this list and I will try to get an answer back quickly. > > -Nathan Hjelm > HPC-5, LANL > > > On Wed, Apr 16, 2014 at 05:01:37PM -0400, Ray Sheppard wrote: > > Hello, > > Big Red 2 provides its own MPICH based MPI. The only case where the > > provided OpenMPI module becomes relevant is when you create a CCMLogin > > instance in Cluster Compatibility Mode (CCM). For most practical > uses, > > those sorts of needs are better addressed on the Quarry or Mason > > machines. > > When in CCM, the Gemini network is not directly accessible. The > > proposed idea is for middleware to present an interface resembling an > IB > > interface and use it to create a subset of the Gemini network for the > CCM > > virtual cluster. Unfortunately, due to a Cray bug, case 80503, that > has > > not yet worked. > > Ray > > > > On 4/16/2014 4:44 PM, Saliya Ekanayake wrote: > > > > Hi, > > We have a Cray XE6/XK7 supercomputer (BigRed II) and I was trying > to get > > OpenMPI Java binding working on it. I couldn't find a way to > utilize its > > Gemini interconnect, instead was running on TCP, which is > inefficient. > > I see some work has been done along these lines in [1] and wonder > if you > > could give some suggestions on how to build OpenMPI with Gemini > support. > > [1] > https://www.open-mpi.org/papers/cug-2012/cug_2012_open_mpi_for_cray_xe_xk.pdf > > Thank you, > > Saliya > > -- > > Saliya Ekanayake esal...@gmail.com > > http://saliya.org > > > > _______________________________________________ > > users mailing list > > us...@open-mpi.org > > http://www.open-mpi.org/mailman/listinfo.cgi/users > > > _______________________________________________ > > users mailing list > > us...@open-mpi.org > > http://www.open-mpi.org/mailman/listinfo.cgi/users > > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users > -- Saliya Ekanayake esal...@gmail.com Cell 812-391-4914 Home 812-961-6383 http://saliya.org
