Questions tagged [mpi]
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54 questions
1 vote
1 answer
224 views
MPI program doesn't start right away (Fedora)
sorry I'm not sure if this is better asked here or Stack Overflow, but this is with a fresh Fedora 39 install, and I've tested it with the packages (installed via dnf) mpich-devel, openmpi-devel and (...
- 111
0 votes
0 answers
197 views
How to find out MPI vendor
How do I find out what MPI (MPICH, OpenMPI, etc) is installed? MPI location (returned by which mpiexec) is cryptic and does not hint a vendor. mpiexec --version returns mpiexec version 1.1.8 mpiexec -...
- 123
0 votes
0 answers
205 views
MPI job stopped with ssh disconnected
I have been using MPI in THCP diskless sever. However, when I run jobs with MPI, sometimes the process die because of SSH disconnected. client_loop: send disconnect: Broken pipe There is no error or ...
0 votes
1 answer
588 views
Calling mpirun from bash file does not recognize $VAR format...?
While trying to run the following .sh file I get an error from mpirun: The file: (additional python config omitted for brevity) NB_MPI_WORKERS=2 SEED=0 mpirun --n ${NB_MPI_WORKERS} python start.py --...
- 43
0 votes
0 answers
153 views
`mpirun -n 2 ./a.x`, the two processes was stuck by epoll_wait, why?
I run a mpi progrem with mpirun -n 2 ./a.x. However, these two processes was stuck. And it is always get stuck and seldom(actually only once) pass through. I find follow information by strace and ...
2 votes
1 answer
378 views
Very new to slurm. How to get slurm to run multiple core jobs on my linux cluster?
I've been trying to move some existing processes to a revamped linux cluster that now runs on slurm. I thought I have it done, but my problem now is trying to get multiple cores to run. Here is my ...
- 21
2 votes
1 answer
8k views
nohup ends when I close the SSH terminal and doesn't show up on ps/job when running
I have an AWS EC2 Ubuntu 20.04 instance, accessed via puTTY SSH. Running a Python process via OpenMPI through the following command on non root: nohup mpirun python3 job.py When the shell is open it ...
1 vote
1 answer
2k views
Install multiple MPI libraries and switch between them on Ubuntu
For educational purposes I'd like to set up several MPI libraries, e.g. OpenMPI, MPICH, and Intel MPI along with different backend compilers (gcc, clang, icc) on the same machine running Ubuntu 18.04....
- 113