Gibbs

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The queue manager is [[SLURM]] and the following queues are available:
 
The queue manager is [[SLURM]] and the following queues are available:
  
* '''avogadro''': max nodes 4, max walltime 336:00:00 (2 weeks)
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* '''gibs''': max nodes 4, max walltime 336:00:00 (2 weeks)
  
  
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  <nowiki>#</nowiki>SBATCH --job-name=''name''
 
  <nowiki>#</nowiki>SBATCH --job-name=''name''
 
  <nowiki>#</nowiki>SBATCH --ntasks=''1''
 
  <nowiki>#</nowiki>SBATCH --ntasks=''1''
  <nowiki>#</nowiki>SBATCH --cpus-per-task=''1''
+
  <nowiki>#</nowiki>SBATCH --cpus-per-task=''10''
 
  <nowiki>#</nowiki>SBATCH --partition=gibbs
 
  <nowiki>#</nowiki>SBATCH --partition=gibbs
 
  <nowiki>#</nowiki>SBATCH --account=gibbs
 
  <nowiki>#</nowiki>SBATCH --account=gibbs

Revision as of 14:28, 7 August 2021

Contents

Description

Gibbs is equipped with the following software/hardware:

  • 6 nodes with 2 x CPU Intel Xeon Octa Core (16 cores), 128 GB of RAM, 2 x 300 GB HD SAS (10 krpm), OS Red Hat Enterprise Linux Server release 6.3
  • 4 nodes with 2 x CPU Intel Xeon 10 Core (20 cores), 128 GB of RAM, 2 x 300 GB HD SAS (10 krpm), OS Scientific Linux release 6.6
  • 4 nodes with 1 x CPU Intel Xeon 24 Core, 256 GB of RAM, 2 x 300 GB HD SAS (10 krpm), OS Scientific Linux release 6.6

for a total of 14 nodes, 272 cores.


Access

  • Linux and Mac OS users can login using a terminal. Windows 10 users can use the PowerShell.

The first step si to open a tunnel. Within the DiSC internet this can be simply done as:

ssh -L 2000:192.168.16.253:22 account@192.168.9.15 -p 7000
or from outside the Department using
ssh -L 2000:192.168.16.253:22 account@147.162.63.10 -p 7000
where "account" is the user's account.


Then, in a different shell, login as:

ssh -p 2000 account@localhost


Through port 2000 users can also transfer files directly via the tunnel using the command scp.


Queues

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

  • gibs: max nodes 4, max walltime 336:00:00 (2 weeks)


Example SLURM file

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

#SBATCH --job-name=name
#SBATCH --ntasks=1
#SBATCH --cpus-per-task=10
#SBATCH --partition=gibbs
#SBATCH --account=gibbs
#SBATCH --time=100:00:00

commands to execute

where the parts in italic should be changed as appropriate.

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