Avogadro

Description

Avogadro is the largest, but oldest, cluster in the C3P facility. It is equipped with the following hardware/software:

• 71 nodes with 2 x CPU Intel Woodcrest Dual Core 2.6 GHz (4 cores), 2 x HD SAS 72 GB, 8 GB RAM, Infiniband, OS Red Hat Enterprise Linux WS release 4
• 9 nodes with 2 x CPU Intel Woodcrest Quad Core 2.6 GHz (8 cores), 2 x HD SAS 72 GB, 16 GB RAM, Infiniband, OS Red Hat Enterprise Linux WS release 4

for a total of 80 nodes, 356 cores.

Access

• Linux and Mac OS users can login within the DiSC internet connection using a terminal with the command:

ssh account@192.168.9.15

or from outside the Department using

ssh -P 50000 account@147.162.63.10

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:

• avogadro: max nodes 40, max walltime 2 weeks (336 hours)
• avogadro-test: max nodes 1, max walltime 10 min

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.