Re: [OMPI users] how to find the binding of each rank on the local machine

Add --report-bindings to the mpirun cmd line Remember, we do not bind processes by default, so you will need to include something about the binding to use (by core, by socket, etc.) on the cmd line See "mpirun -h" for the options On Feb 9, 2013, at 8:46 PM, Kranthi Kumar

Re: [OMPI users] how to find the binding of each rank on the local machine

I've been talking with Kranthi offline, he wants to use locality info inside OMPI. He needs the binding info from *inside* MPI. From 10 thousands feet, it looks like communicator->rank[X]->locality_info as a hwloc object or as a hwloc bitmap. Brice Le 10/02/2013 06:07, Ralph Castain a écrit :

Re: [OMPI users] now 1.9 [was: I have still a problem withrankfiles in openmpi-1.6.4rc3]

Hi > > You'll want to look at orte/mca/rmaps/rank_file/rmaps_rank_file.c > > - the bit map is now computed in mpirun and then sent to the daemons > > Actually, I'm getting lost in this code. Anyhow, I don't think > the problem is related to Solaris. I think it's also on Linux. > E.g., I can

Re: [OMPI users] now 1.9 [was: I have still a problem withrankfiles in openmpi-1.6.4rc3]

On 2/10/2013 1:14 AM, Siegmar Gross wrote: I don't think the problem is related to Solaris. I think it's also on Linux. E.g., I can reproduce the problem with 1.9a1r28035 on Linux using GCC compilers. Siegmar: can you confirm this is a problem also on Linux? E.g., with OMPI 1.9, on one of

[OMPI users] running mpi job..

Hi everyone out there, I am a Newbie to HPC, we have a couple of HPC clusters where I work. So started to create in vmware workstation. lot of times I failed to run mpi job. I have followed the default configs. finally succeeded in installing but I had a problem when running a mpi

Re: [OMPI users] error when running mpirun

The error message indicates that libnuma was not installed on at least one node. That's a system library, not an OMPI one, so you'll need to get it installed by someone with root privileges. On Feb 10, 2013, at 12:04 PM, satya k wrote: > Hi everyone, > > I m getting the

Re: [OMPI users] how to find the binding of each rank on the local machine

What about *inside* OMPI? Brice Le 10/02/2013 21:16, Ralph Castain a écrit : > There is no MPI standard call to get the binding. He could try to use the MPI > extensions, depending on which version of OMPI he's using. It is in v1.6 and > above. > > See "man OMPI_Affinity_str" for details

Re: [OMPI users] how to find the binding of each rank on the local machine

I honestly have no idea what you mean. Are you talking about inside an MPI application? Do you mean from inside the MPI layer? Inside ORTE? Inside an ORTE daemon? On Feb 10, 2013, at 1:41 PM, Brice Goglin wrote: > What about *inside* OMPI? > > Brice > > > > Le

Re: [OMPI users] how to find the binding of each rank on the local machine

Inside the OMPI implementation. He wants to use locality information for some sort of collective algorithm tuning (or something like that). He needs the locality of all local ranks as far as I understood. I don't know if that's ORTE or not, but that's inside some OMPI component at least. Brice

Re: [OMPI users] how to find the binding of each rank on the local machine

I see - I think. The locality of every process is stored on the ompi_proc_t for that process in the proc_flags field. You can find the definition of the values in opal/mca/hwloc/hwloc.h. On Feb 10, 2013, at 1:57 PM, Brice Goglin wrote: > Inside the OMPI

Re: [hwloc-users] hwloc on Blue Gene/Q?

Brice I tried using this tarball. Things didn't work. (This particular run used 2 MPI processes with 32 OpenMP threads each.) In my application, I first output the topology in a tree structure. (I do this in my application instead of via one of hwloc's tools because I don't want to call out to