Pierre

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'''Pierre''' is a small cluster made of 2 nodes only, but both hosting a large number of cores and large amount of RAM memory. In particular, it is equipped with the following hardware/software:
 
'''Pierre''' is a small cluster made of 2 nodes only, but both hosting a large number of cores and large amount of RAM memory. In particular, it is equipped with the following hardware/software:
  
* '''1 node''' with 2 x CPU Intel Xeon L5640 2.27 GHz (''12 cores''), Y GB of RAM, 2 x 140 GB HD SAS (connected in Raid 1), 2 x 1 TB HD SATA (connected in Raid 1), OS Linux Red Hat X.Y.
+
* '''1 node''' with 2 x CPU Intel Xeon L5640 2.27 GHz (''12 cores''), 48 GB of RAM, 2 x 140 GB HD SAS (connected in Raid 1), 2 x 1 TB HD SATA (connected in Raid 1), OS Red Hat Enterprise Linux release 5.5.
* '''1 node''' with 4 x CPU  AMD Opteron 6282 SE (''32 cores''), 256 GB of RAM, 5 x 600 GB HD SAS (connected in Raid 5 + spare disk), Infiniband, OS Scientific Linux X.Y.
+
* '''1 node''' with 4 x CPU  AMD Opteron 6282 SE (''32 cores''), 256 GB of RAM, 5 x 600 GB HD SAS (connected in Raid 5 + spare disk), Infiniband, OS Red Hat Enterprise Linux release 5.5.
  
 
for a total of 2 nodes, 64 cores.
 
for a total of 2 nodes, 64 cores.
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* Linux and Mac OS users can login using a terminal with the command:
 
* Linux and Mac OS users can login using a terminal with the command:
  
  ssh account@192.168.9.##
+
  ssh account@192.168.9.85
  
 
:where "account" is the user's account.
 
:where "account" is the user's account.
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* '''pierre''': max nodes 1, max cores 12, max walltime 2 weeks (336 hours)
 
* '''pierre''': max nodes 1, max cores 12, max walltime 2 weeks (336 hours)
* '''x...''': max nodes 1, max cores 32, max walltime 2 weekd (336 hors)
+
* '''x8755m3''': max nodes 1, max cores 32, max walltime 2 weekd (336 hors)
  
  

Revision as of 01:14, 5 March 2018

Contents

Description

Pierre is a small cluster made of 2 nodes only, but both hosting a large number of cores and large amount of RAM memory. In particular, it is equipped with the following hardware/software:

  • 1 node with 2 x CPU Intel Xeon L5640 2.27 GHz (12 cores), 48 GB of RAM, 2 x 140 GB HD SAS (connected in Raid 1), 2 x 1 TB HD SATA (connected in Raid 1), OS Red Hat Enterprise Linux release 5.5.
  • 1 node with 4 x CPU AMD Opteron 6282 SE (32 cores), 256 GB of RAM, 5 x 600 GB HD SAS (connected in Raid 5 + spare disk), Infiniband, OS Red Hat Enterprise Linux release 5.5.

for a total of 2 nodes, 64 cores.


Access

  • Linux and Mac OS users can login using a terminal with the command:
ssh account@192.168.9.85
where "account" is the user's account.
  • Windows users can use an interface program to the ssh service, e.g. Putty.


Queues

The queue manager is PBS and the following queues are available:

  • pierre: max nodes 1, max cores 12, max walltime 2 weeks (336 hours)
  • x8755m3: max nodes 1, max cores 32, max walltime 2 weekd (336 hors)


Example PBS file

A typical PBS input file script will be as follow (see the Support page for more help):

#!/bin/sh --login
#PBS -N jobname
#PBS -A account
#PBS -q queue
#PBS -l nodes=n
#PBS -w time in hh:mm:ss format

commands to execute

where the parts in italic should be changed as appropriate.

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