===== System layout and storage =====

{{.:pictures/cluster-übersicht-vsc.jpg}}


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===== System layout and storage =====

{{.:pictures/cluster-schema.jpg}}


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===== System layout and storage =====

  * 2 Login nodes to transfer data, prepare and submit job files
  * 2 NFS servers holding /home, /calc and /scratch directories
  * Submit jobs to SLURM
  * SLURM sends jobs to compute nodes


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===== System layout and storage =====

Data can be written to:

  * Scratch directory: ''%%/scratch/username%%'' (deleted after job)
  * Calc directory: ''%%/calc/username%%'' (persistent)
  * ''%%/tmp%%'': local disk on node (deleted after job)
  * ''%%/dev/shm%%'': in-memory file system (deleted after job)
  * Home directory: ''%%/home/username%%''
    * you can write here (technically) but you should not use it intentionally
    * use ''%%/calc/username%%'' instead


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===== System layout and storage =====

==== Configuration of compute nodes: ====

^partition^CPU                                   ^  cores  ^  threads  ^  memory^nodename  ^
|E5-2690v4|2x Intel Xeon CPU E5-2690 v4 @ 2.60GHz|   28    |    28     |  128 GB|c1-[01-12]|
|E5-2690v4|2x Intel Xeon CPU E5-2690 v4 @ 2.60GHz|   28    |    28     |  256 GB|c2-[01-08]|
|Phi      |1x Intel Xeon Phi CPU 7210 @ 1.30GHz  |   64    |    256    |  208 GB|c3-[01-08]|
|E5-1650  |1x Intel Xeon CPU E5-1650 v4 @ 3.60GHz|    6    |     6     |   64 GB|c4-[01-16]|

The current cluster (“smmpmech.unileoben.ac.at”) will be integrated into the new cluster as additional partitions.


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===== Network =====

  * Mellanox FDR Infiniband Network, MT27500 ConnectX-3 (56 Gbit/s)
    * c1-[01-12], c2-[01-08]
    * storage server (f1,f2)
    * login nodes
  * Gigabit Ethernet
    * all servers and compute nodes


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