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Cacau Batch System
The only way to start a parallel job on the compute nodes of this cluster is to use the portable batch system (Torque). You will get each requested node for your exclusive usage! Detailed information about the Batch system are available by the man pages 'man pbs'. There are 2 methods to use the batch system:
- interactive batchjobs:
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if requested resources are available, the job starts a interactive shell immediately. For interactive access the qsub command (see section 2.1 below) has the option -I (example: qsub -I ...).
- normal batchjobs:
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jobs will be started by the MAUI scheduler after passing some rules configured by the administrator (FAIRSHARE, BACKFILLING, ...).
During nighttime you can use the system for long running benchmarks and/or production like runs.
Important!
The HOME filesystem on the compute nodes is located on the master node cacau.hww.de and mounted via NFS. For computation of large data, please use the local scratch area. To copy your data input/results from/to the master node, use the command scp. See also sections Home directories 1.3.1 and SCRATCH directories 1.3.2.