Re: [OMPI users] [External] Re: mpirun on Kubuntu 20.4.1 hangs

2020-10-22 Thread Prentice Bisbal via users
 Could SELinux or AppArmor be active by default for a new install and be causing this problem? Prentice On 10/21/20 12:22 PM, Jorge SILVA via users wrote: Hello Gus,  Thank you for your answer..  Unfortunately my problem is much more basic. I  didn't try to run the program in both computers

[OMPI users] Is ready send mode supported? Or can I force eager protocol for a subset of messages?

2020-10-22 Thread Oskar Lappi via users
Hi, a performance question, I have a distributed stencil loop that's sending several tens of slightly larger messages every iteration, I post double buffered receives at initialization and immediately after a receive request is completed. I can therefore prove that the receive is posted on the

Re: [OMPI users] mpirun on Kubuntu 20.4.1 hangs

2020-10-22 Thread Joseph Schuchart via users
Hi Jorge, Can you try to get a stack trace of mpirun using the following command in a separate terminal? sudo gdb -batch -ex "thread apply all bt" -p $(ps -C mpirun -o pid= | head -n 1) Maybe that will give some insight where mpirun is hanging. Cheers, Joseph On 10/21/20 9:58 PM, Jorge SI

Re: [OMPI users] Anyone try building openmpi 4.0.5 w/ llvm 11

2020-10-22 Thread Gilles Gouaillardet via users
Alan, thanks for the report, I addressed this issue in https://github.com/open-mpi/ompi/pull/8116 As a temporary workaround, you can apply the attached patch. FWIW, f18 (shipped with LLVM 11.0.0) is still in development and uses gfortran under the hood. Cheers, Gilles On Wed, Oct 21, 2020 at