Ansys HPC Platform Services does not support federated Slurm clusters.
When running Mechanical jobs (MAPDL and LS-DYNA) with HPC tight integration, some jobs may fail in the following scenarios:
Mechanical jobs while using Intel MPI. To resolve the issue, add the following environment variables to the application's settings in the cluster resource properties:
MAPDL jobs while using Open MPI on AMD machines. To resolve the issue, set the following additional argument in the task's Execution context in the job definition:
-mpiopt " --map-by socket --rank-by core -x UCX_TLS=rc,sm,self -x UCX_MAX_RNDV_RAILS=1 "
Alternatively, you can edit the job definition. In the task definition, go to HPC Resource Requirements and set Exclusive to True.
A static evaluator can only run concurrent jobs belonging to the same project and job definition (for example, design point studies). It cannot run jobs from different projects (or different job definitions within the same project) concurrently.
On Rocky Linux 8.x, the Autoscaler may fail to parse the Process Launcher output with the following error:
“stderr': "/bin/sh: which: line 1: syntax error: unexpected end of file\n/bin/sh: error importing function definition for `which'\n"}”
This is caused by a faulty alias configuration.
To resolve this issue, move or remove the file /etc/profile.d/which2.sh.