1,450
edits
Changes
Created page with "Category:Nefelibata Nefelibata is a computer cluster located at Dalhousie University, managed by ACENET on behalf of researchers who have purchased the equipment. === Ac..."
[[Category:Nefelibata]]
Nefelibata is a computer cluster located at Dalhousie University,
managed by ACENET on behalf of researchers who have purchased the equipment.
=== Access ===
You may only access Nefelibata with the permission of one of the contributing Principal Investigators.
If you don't have access to Nefelibata and believe you should, please write to support@ace-net.ca and say so.
Copy the PI with whom you are associated, and mention in the email your Digital Research Alliance of Canada username.
When your Alliance username has been added to the access control list for Nefelibata, you can log in like so:
ssh username@nefelibata.ace-net.ca
Supply your Alliance password when prompted.
We highly recommend installing an SSH public key and using SSH key pair access after your first login.
Use the login node for data transfers.
=== Job scheduling ===
Users will normally access the individual machines comprising the cluster via the job scheduler, Slurm.
If you have used Alliance resources you may already be familiar with [https://docs.alliancecan.ca/wiki/Running_jobs job scheduling with Slurm].
Being a much smaller cluster, Nefelibata has a much simpler configuration than the large Alliance clusters,
but the basic commands are the same. For example,
sbatch --time=24:0:0 --ntasks=32 jobscript.sh
...to submit a job script <code>jobscript.sh</code>, or
salloc --time=3:0:0 --cpus-per-task=4 --mem-per-cpu=1000M
...to request a three-hour interactive session on a compute node with 4 cores and 4000M of RAM.
Two nodes carrying NVidia A30 GPUs have recently been installed.
To request an interactive session reserving one entire GPU node:
TO COME...
Nefelibata is a computer cluster located at Dalhousie University,
managed by ACENET on behalf of researchers who have purchased the equipment.
=== Access ===
You may only access Nefelibata with the permission of one of the contributing Principal Investigators.
If you don't have access to Nefelibata and believe you should, please write to support@ace-net.ca and say so.
Copy the PI with whom you are associated, and mention in the email your Digital Research Alliance of Canada username.
When your Alliance username has been added to the access control list for Nefelibata, you can log in like so:
ssh username@nefelibata.ace-net.ca
Supply your Alliance password when prompted.
We highly recommend installing an SSH public key and using SSH key pair access after your first login.
Use the login node for data transfers.
=== Job scheduling ===
Users will normally access the individual machines comprising the cluster via the job scheduler, Slurm.
If you have used Alliance resources you may already be familiar with [https://docs.alliancecan.ca/wiki/Running_jobs job scheduling with Slurm].
Being a much smaller cluster, Nefelibata has a much simpler configuration than the large Alliance clusters,
but the basic commands are the same. For example,
sbatch --time=24:0:0 --ntasks=32 jobscript.sh
...to submit a job script <code>jobscript.sh</code>, or
salloc --time=3:0:0 --cpus-per-task=4 --mem-per-cpu=1000M
...to request a three-hour interactive session on a compute node with 4 cores and 4000M of RAM.
Two nodes carrying NVidia A30 GPUs have recently been installed.
To request an interactive session reserving one entire GPU node:
TO COME...