Working on ciclad

ciclad is an IPSL computing server located on the Jussieu campus in Paris, France.

Documentation

​http://ciclad-web.ipsl.jussieu.fr

​http://ciclad-web.ipsl.jussieu.fr/ciclad-utilisation.pdf

hotline : 'svp-ciclad_@…'

The machines and file systems

The front-end machine can be accessed via the ciclad.jussieu.ipsl.fr IP.

Data files must be placed in /data/ or in the filesystem dedicated to your project.

Shared account

cf. Repository for shared files and shared tools /ipslfs/igcmg/IGCM belonging to the account igcmg (${HOME}=/home/igcmg)

$ id -a igcmg
uid=31575(igcmg) gid=31575(igcmg) groups=31575(igcmg)

Individual account

You must belong to the igcmg users' group.

cf. to check the result of the command

id -a

How to define your environment

Add the following line in your login file (e.g. /home/igcmg/.bashrc) :

. /home/igcmg/.atlas_env_ciclad_ksh

for the FORTRAN compiler, the NetCDF library, ferret,...

Job manager commands

torque/maui tool

End-of-job messages

To receive the end-of-job messages returned by the job itself (e.g. end of simulation, error,...) you must specify your email address in the file ${HOME}/.forward.

How to choose the number of processes?

Example of job for a MPI executable

#PBS -S  /bin/bash
#PBS -N  job_mpi8
###PBS -q short
#PBS -j eo
#PBS -l nodes=1:ppn=8
#PBS -l walltime=00:15:00
#PBS -l mem=6gb
#PBS -l vmem=20gb

ulimit -s unlimited

# Go to directory where the job was launched
cd $PBS_O_WORKDIR

/usr/lib64/openmpi/1.4.5-ifort/bin/mpirun gcm.e > gcm.out 2>&1

libIGCM specificities on ciclad

libIGCM is not yet implemented for use at ciclad.