Preface
CentOS 7 has reached its end of life. For this reason the operating system (OS) of Lise's CPU partition will be updated to Rocky Linux 9. This affects all login and compute nodes equipped with Intel Xeon Cascade Lake processors ("clx" for short). Lise's GPU partitions ("a100" and "pvc") are not affected.
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SLURM partitions
CentOS 7 | Rocky Linux 9 |
|---|
● standard96 | ● cpu-clx |
● standard96:test | ● cpu-clx:test |
● standard96:ssd | ● cpu-clx:ssd |
● large96 | ● cpu-clx:large |
● large96:test | |
● large96:shared | |
● huge96 | ● cpu-clx:huge |
● available ● closed/not available
What remains unchanged
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| Erweitern |
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| title | Is there a way to switch back from PMIx to PMI-2 with srun? |
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Yes. Simply say unset I_MPI_PMI_LIBRARY and export SLURM_MPI_TYPE=pmi2 before invoking srun. |
| Erweitern |
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| title | Why do I receive "MPI startup(): Warning: I_MPI_PMI_LIBRARY will be ignored since the hydra process manager was found"? |
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This is because we need to define I_MPI_PMI_LIBRARY to ensure that the PMIx interface of srun works also for Intel-MPI. Obviously, you prefer mpirun over srun, and in this case you can manually unset I_MPI_PMI_LIBRARY to avoid this (harmless) warning message. |