Dalton

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== Access ==
 
== Access ==
  
* Linux and Mac OS users can login within the DiSC internet connection using a terminal with the command:
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The Pierre cluster is being migrated to the new system. Access information will be updated as soon as the migration is complete.
 
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ssh account@192.168.9.14
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:or from outside the Department using
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ssh -p 50002 account@147.162.63.10
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:where "account" is the user's account.
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* Windows users can use an interface program to the ssh service, e.g. [http://www.putty.org/ Putty].
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== Queues ==
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The queue manager is [[LL]] for the IBM nodes and [[PBS]] for the Intel nodes. The following queues are available:
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* '''dalton-IBM''': max nodes 5, max walltime 336:00:00 (2 weeks)
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* '''dalton-Intel''': max nodes 3, max walltime 336:00:00 (2 weeks)
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* '''dalton-long''': max 2 nodes, max walltime 1500:00:00 (ca. 2 months), Intel Xeon processors only. This queue is to be '''used strictly to run jobs that do not allow checkpointing of the status of the calculation'''. This is considered an '''exceptional case''', thus this penelty isapplied: a maximum of total 1 jobs can run at the same time on this queue.
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== Example PBS file ==
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A typical [[PBS]] input file script will be as follow (see the [[Support]] page for more help):
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<nowiki>#</nowiki>!/bin/sh --login
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<nowiki>#</nowiki>PBS -N ''jobname''
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<nowiki>#</nowiki>PBS -A ''account''
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<nowiki>#</nowiki>PBS -q dalton-intel
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<nowiki>#</nowiki>PBS -l nodes=''n''
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<nowiki>#</nowiki>PBS -w ''time in hh:mm:ss format''
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''commands to execute''
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where the parts in ''italic'' should be changed as appropriate.
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Revision as of 14:38, 7 August 2021

Description

Dalton is a small cluster featuring both IBM Power PC and Intel Xeon CPU's. It is equipped with the following hardware/software:

  • 8 nodes with 2 x CPU Ibm PPC6 (8 cores), 24 GB of RAM, 1 x 140 GB HD SAS, Infiniband, OS Red Hat Linux Server Enterprise release 5.3.
  • 6 nodes with 2 x CPU Intel Xeon X5650 2.6 GHz (12 cores), 48 GB of RAM, 2 x 300 GB HD SAS, Infiniband, OS Red Hat Linux Server Enterprise release 5.5.

for a total of 14 nodes, 208 cores.


Access

The Pierre cluster is being migrated to the new system. Access information will be updated as soon as the migration is complete.

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