Add slurm-karolina.md

docs.it4i/general/slurm-karolina.md

+# Slurm Job Submission and Execution
+
+## Introduction
+
+[Slurm][1] workload manager is used to allocate and access Karolina cluster's resources.
+General information about Slurm use at IT4Innovations can be found at [Slurm Job Submission and Execution][2].
+
+## Getting Partition Information
+
+Display partitions/queues on system:
+
+```console
+$ sinfo -s
+PARTITION    AVAIL  TIMELIMIT   NODES(A/I/O/T) NODELIST
+qcpu*           up 2-00:00:00      0/720/0/720 cn[001-720]
+qcpu_biz        up 2-00:00:00      0/720/0/720 cn[001-720]
+qcpu_exp        up    1:00:00      0/720/0/720 cn[001-720]
+qcpu_free       up   18:00:00      0/720/0/720 cn[001-720]
+qcpu_long       up 6-00:00:00      0/720/0/720 cn[001-720]
+qcpu_preempt    up   12:00:00      0/720/0/720 cn[001-720]
+qgpu            up 2-00:00:00        0/71/1/72 acn[01-72]
+qgpu_biz        up 2-00:00:00        0/71/1/72 acn[01-72]
+qgpu_exp        up    1:00:00        0/71/1/72 acn[01-72]
+qgpu_free       up   18:00:00        0/71/1/72 acn[01-72]
+qgpu_preempt    up   12:00:00        0/71/1/72 acn[01-72]
+qfat            up 2-00:00:00          0/1/0/1 sdf1
+qviz            up    8:00:00          0/2/0/2 viz[1-2]
+```
+
+Graphical representation of cluster usage, partitions, nodes, and jobs could be found
+at [https://extranet.it4i.cz/rsweb/karolina][3]
+
+On Karolina cluster
+
+* all cpu queues/partitions provide full node allocation, whole nodes are allocated to job
+* other queues/partitions (gpu, fat, viz) provide partial node allocation
+
+## Accessing CPU Queues
+
+```console
+$ salloc -A PROJECT-ID -p qcpu
+```
+
+## Using GPU Queues
+
+## Using Fat Queue
+
+## Using Viz Queue
+
+[1]: https://slurm.schedmd.com/
+[2]: slurm-job-submission-and-execution
+[3]: https://extranet.it4i.cz/rsweb/karolina