Re: [OMPI users] Using strace with Open MPI on Cray

2019-04-02 Thread Christoph Niethammer
ammer/strace-analyzer [2]https://linux-nfs.vger.kernel.narkive.com/l14j0vTR/fcntl-f-setlkw-hangs-on-linux-nfs-mount Best Christoph - Mensaje original - De: "Gilles Gouaillardet" Para: "Open MPI Users" Enviados: Domingo, 31 de Marzo 2019 5:42:49 Asunto: Re: [OMPI us

Re: [OMPI users] Using strace with Open MPI on Cray

2019-03-31 Thread Christoph Niethammer
ps://linux-nfs.vger.kernel.narkive.com/l14j0vTR/fcntl-f-setlkw-hangs-on-linux-nfs-mount Best Christoph - Mensaje original - De: "Gilles Gouaillardet" Para: "Open MPI Users" Enviados: Domingo, 31 de Marzo 2019 5:42:49 Asunto: Re: [OMPI users] Using strace with Open MPI on Cray Ch

Re: [OMPI users] Using strace with Open MPI on Cray

2019-03-30 Thread Gilles Gouaillardet
Christoph, I do not know how to fix this, but here are some suggestions/thoughts - do you need the -f flag ? if not, just remote it - what if you mpirun strace -o /dev/null ... ? - if the former works, then you might want to redirect the strace output to a local file (mpirun wrapper.sh, in which

Re: [OMPI users] Using strace with Open MPI on Cray

2019-03-30 Thread Nathan Hjelm via users
Add --mca btl ^tcp to your mpirun command line. It shouldn't be used on a Cray. > On Mar 30, 2019, at 2:00 PM, Christoph Niethammer wrote: > > Short update: > > The polled file descriptor is related to a socket, which I identified to be > the local tcp btl connection ... > On a Lustre file sys

Re: [OMPI users] Using strace with Open MPI on Cray

2019-03-30 Thread Christoph Niethammer
Short update: The polled file descriptor is related to a socket, which I identified to be the local tcp btl connection ... On a Lustre file system the problem does not show up. Best Christoph - Mensaje original - De: "niethammer" Para: "Open MPI Users" Enviados: Sábado, 30 de Marzo 20