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Changes in OpenMPI and added iMPI

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This commit is contained in:
caubet_m
2020-05-22 18:08:49 +02:00
parent a7662b6959
commit 0100bc8790
2 changed files with 11 additions and 1 deletions
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4
pages/merlin6/05 Software Support/impi.md
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@ -26,6 +26,8 @@ When running with **srun**, one should tell Intel MPI to use the PMI libraries p
```bash
export I_MPI_PMI_LIBRARY=/usr/lib64/libpmi.so
srun ./app
```
Alternatively, one can use PMI-2, but then one needs to specify it as follows:
@ -33,6 +35,8 @@ Alternatively, one can use PMI-2, but then one needs to specify it as follows:
```bash
export I_MPI_PMI_LIBRARY=/usr/lib64/libpmi2.so
export I_MPI_PMI2=yes
srun ./app
```
For more information, please read [Slurm Intel MPI Guide](https://slurm.schedmd.com/mpi_guide.html#intel_mpi)

8
pages/merlin6/05 Software Support/openmpi.md
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@ -19,6 +19,12 @@ bind tasks in to cores and less customization is needed, while **'mpirun'** and
configuration and should be only used by advanced users. Please, ***always*** adapt your scripts for using **'srun'**
before opening a support ticket. Also, please contact us on any problem when using a module.
Example:
```bash
srun ./app
```
{{site.data.alerts.tip}} Always run OpenMPI with the <b>srun</b> command. The only exception is for advanced users, however <b>srun</b> is still recommended.
{{site.data.alerts.end}}
@ -43,7 +49,7 @@ Alternatively, one can add the following options for debugging purposes (visit [
Full example:
```bash
mpirun -np $SLURM_NTASKS -mca pml ucx --mca btl ^vader,tcp,openib,uct -x UCX_NET_DEVICES=mlx5_0:1 -x UCX_LOG_LEVEL=data -x UCX_LOG_FILE=UCX-$SLURM_JOB_ID.log
mpirun -np $SLURM_NTASKS -mca pml ucx --mca btl ^vader,tcp,openib,uct -x UCX_NET_DEVICES=mlx5_0:1 -x UCX_LOG_LEVEL=data -x UCX_LOG_FILE=UCX-$SLURM_JOB_ID.loga ./app
```
## Supported OpenMPI versions