Re: [OMPI users] OpenMPI 3 without network connection

2019-01-29 Thread Patrick Bégou
gt;> >> The root cause is we do not include the localhost interface by >> default for OOB communications. >> >> >> You should be able to run with >> >> mpirun --mca oob_tcp_if_include lo -np 4 hostname >> >> >> Cheers, >> >>

Re: [OMPI users] OpenMPI 3 without network connection

2019-01-28 Thread Patrick Bégou
> Does “no network is available” means the lo interface (localhost > 127.0.0.1) is not even available ? > > Cheers, > > Gilles > > On Monday, January 28, 2019, Patrick Bégou > <mailto:patrick.be...@legi.grenoble-inp.fr>> wrote: > > Hi, > >

[OMPI users] OpenMPI 3 without network connection

2019-01-28 Thread Patrick Bégou
Hi, I fall in a strange problem with OpenMPI 3.1 installed on a CentOS7 laptop. If no  network is available I cannot launch a local mpi job on the laptop: bash-4.2$ mpirun -np 4 hostname -- No network interfaces were found

Re: [OMPI users] [version 2.1.5] invalid memory reference

2018-10-12 Thread Patrick Bégou
I have downloaded the nightly snapshot tarball of october 10th 2018 for the 3.1 version and it solves the memory problem. I ran my test case on 1, 2, 4, 10, 16, 20, 32, 40, and 64 cores successfully. This version also allows to compile my prerequisites libraries, so we can use it out of the box to

Re: [OMPI users] memory per core/process

2013-03-30 Thread Patrick Bégou
ory he has to request 2 cores, even if he uses a sequential code. This avoid crashing jobs of other users on the same node with memory requirements. But this is not configured on your node. Duke Nguyen a écrit : On 3/30/13 3:13 PM, Patrick Bégou wrote: I do not know about your code but: 1) did

Re: [OMPI users] memory per core/process

2013-03-30 Thread Patrick Bégou
I do not know about your code but: 1) did you check stack limitations ? Typically intel fortran codes needs large amount of stack when the problem size increase. Check ulimit -a 2) did your node uses cpuset and memory limitation like fake numa to set the maximum amount of memory available