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Hardware

The CPU CLX partition offers a system based on Intel CPUs. For more details see also Slurm partition CPU CLX.

node numberper node
982

2x Intel Xeon "Cascade Lake" Platinum 9242


96 compute cores

384 GB RAM


Omni-Path OPA100 host fabric adapter

Login nodes

General description of SSH Login authentication is possible via SSH keys only. Please visit given in the Usage Guide.

Generic login nameList of login nodes
blogin.nhr.zib.deblogin1-8.nhr.zib.de

Program build

Once you compiled a binary file (see the Compilation Guide) you need to execute your code. Serial and OpenMP is started directely. For MPI parallelized code you choose between two approaches, namely using srun  or mpirun.

Serial and OpenMP parallel code

Please read the page Workflow compiler how to execute

  • serial code,
  • one OpenMP parallel code, or
  • several OpenMP codes simultaneously.

MPI parallel code

Please read the page Workflow Intel MPI how to execute

  • MPI parallel code or
  • MPI, OpenMP hybrid parallel code.

...

Partition usage

To use CPU CLX partition, please

  1. create a binary like in Workflow CPU CLX,
  2. create a slurm job script like in Workflow CPU CLX,
  3. and submit the job like in Slurm partition CPU CLX.