Idun for Sintef and Unity users

Getting access to Idun:

If you are already affiliated with NTNU and have a NTNU username, you can fast and easily be added to Idun. If you do not have a NTNU account, we need to create one for you.

In both cases you need to send an email to: help@hpc.ntnu.no

We will then help you with creating a username and getting access.

Login to the IDUN cluster:

IDUN login servers are located at:

  • idun-login1.hpc.ntnu.no
  • idun-login2.hpc.ntnu.no

Run job on IDUN

Use one of these accounts in your job script:

  • share-sintef-industry (high priority with limited hours per month)
  • share-sintef-ocean-b (high priority with limited hours per month)
  • share-sintef-ocean-t (high priority with limited hours per month)
  • sintef (normal priority no limits)

Example job script:

#!/bin/sh
#SBATCH --partition=CPUQ
#SBATCH --account=sintef
#SBATCH --time=00:30:00
#SBATCH --nodes=2
#SBATCH --ntasks-per-node=2

#SBATCH --job-name="Fluent 1"
#SBATCH --output=lbm_cuda.out

module purge
module FLUENT/22.1
mpirun hostname

srun fluent <fluent parameters>

Example gpu jobscript

#!/bin/sh
#SBATCH --partition=GPUQ
#SBATCH --account=sintef
#SBATCH --time=00:30:00
#SBATCH --nodes=2
#SBATCH --ntasks-per-node=2
#SBATCH --gres=gpu:2  
#SBATCH --job-name="LBM_CUDA"
#SBATCH --output=lbm_cuda.out

module purge
module load fosscuda/2018b
mpirun hostname

srun ./my-cudacode

For MPI job to guarantee start on the same hardware you can add this line to your job script:

#SBATCH --constraint=pec6520

"pec6520" is server Dell PowerEdge C6520.

Urgent jobs

There is daily (between 09:00 - 16:00) node reservation for Sintef Ocean users. Use it in case of urgency.

Add this line to a jobs script to use this reservation:

#SBATCH --reservation=sintef-ocean

Command to check reservation status:

scontrol show reservation sintef-ocean

License server for STAR-CCM+ and HELYX

Start START-CCM+ with license:

$ module avail STAR
   STAR-CCM+/18.02.008-r8
   STAR-CCM+/18.06.007-r8

$ module load STAR-CCM+/18.06.007-r8
$ export CDLMD_LICENSE_FILE=27000@<license server IP>
$ starccm+

Replace <license server IP> with IP address to the license server.

Start HELYX with license:

/cluster/apps/install/Engys-4.1.1/HELYX/v4.1.1/GUI/HELYX.sh
# or
/cluster/apps/install/Engys-4.2.0/HELYX/v4.2.0/GUI/HELYX.sh

Replace <license server IP> with IP address to the license server.

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