Running gem5 on the Cluster

Steps for running gem5 on Cluster:

Creating the gem5 Docker

Install Docker and Singularity on local system to build the SIF file locally before copying it to the cluster.

Retrieve Dockerfile with all gem5 dependencies from gem5 source at gem5/util/dockerfiles/ubuntu-20.04_all-dependencies/Dockerfile

Copy the Dockerfile to a new directory and build it.

 sudo docker build ./ 

Use "docker images" command to get image id:

 docker images 

Save the docker image to a tar file:

 sudo docker save id -o gem5.tar 

Use singularity to build a .sif container file based off of the archived docker image:

sudo singularity build gem5.sif docker-archive://gem5.tar

Copy the .sif file to the cluster

**The created sif file (gem5.sif) is already in "/work/alian" directory on the cluster.

Accessing the Cluster

Logging into the cluster :

ssh {username}@login1.ittc.ku.edu

Request enteractive cluster node session with desired amount of cores/Memory/Time:

srun -p intel -N 1 -n 1 -c {Number of cores} --mem {Memory} -t {Number of days-00:00:00} --pty /bin/bash

Load singularity module :

module load Singularity/3.4.1 

Run containerunder :

singularity run gem5.sif 

Start tmux session for building process:

tmux

Then checkout and build gem5.