Recently Updated Pages
Allowed directories for users software installations
There are a few options for local users installation locations as showed on the next table, creat...
Software List
List of software centrally available via the modules tool at the Cirrus HPC and HTC clusters as o...
Software Management
The Cirrus software is managed using a tool called modules. This tool allows the user to load the...
Cirrus nodes and specs
The list of server class types available to general users in the Cirrus HPC/HTC clusters. CNCA-L...
How to Run a Job with a GPU
Let's run the gravitational N-body simulation found on the CUDA toolkit samples on a GPU. This ex...
My jobs need to run longer than the queues permit
At Cirrus the default max elapsed time for the queues is 72h. The values for all queues can be...
Quality of Service (QOS)
Quality of Service (QoS) is used to limite the characteristics that a job can have. Default QOS p...
UDocker Containers
Availability of udocker containers directly on CVMFS read-only filesystem in order to speedup the...
Deep Learning Example
The Cirrus-A facility provides several GPUs, check the Compute Node Specs page. Login on the subm...
Use QOS to run GPU jobs
This page it's dedicate to users who want to run GPU's and have a QOS. GPU JOB submission using...
How to run parallel job's with srun
srun : Used to submit/initiate job or job step Typically, srun is invoked from a SLURM job scrip...
Use of user QOS for CPU jobs
In order to use QOS you will to have an assigned user QOS. In the following example the user will...
Start here
Cluster specific information CNCA provides acess to several HPC computing clusters. The policies,...
Directories and filesystems
The Cirrus filesystems are based on the Lustre shared filesystem which is mounted in the compute ...
Disk Quota Policy
To prevent storage misuse and problems resulting from filesystems becoming full, Cirrus has imple...
How to transfer files between Cirrus and a local machine
NOTE Please note that the Cirrus Lustre storage is not designed for small files. Attempting to s...
How to access files belonging to someone else or another project
Users are allowed to change the default permissions file permissions in all folders they own. The...
Access
CNCA is open to all academic and scientific researchers and institutions. In order to use our ser...
Enable access to a remote host
In most cases you will not need to add your own SSH public key to other CNCA remote hosts as ther...
Using SSH tunnels
In some cases you may need to access remote hosts that have private IP addresses or are protected...