Department of Mathematics and Statistics Compute Cluster

usage

pillai (pillai@undisclosed.example.com) — 2026-02-16T11:19:16+00:00

Note - VPN is necessary for off campus access. Please use a Secure Shell Client to connect to cluster.mathstat.dal.ca Interactive queue The Interactive queue is useful to run software with a graphical user interface or programs not suitable for the Batch queues. Please type qrsh to get an ssh session to the least loaded Compute Node. The X-Server for windows is available for download from the Department servers and X11 tunneling can be used for starting graphical applications over ssh. For f…

x2go

pillai (pillai@undisclosed.example.com) — 2026-02-16T11:19:05+00:00

Note - VPN is necessary for off campus access. The old NX service is replaced with x2go. For using graphically intensive applications like Matlab, Maple etc from home, please use x2go instead of X11 tunneling over ssh. Please download the x2go client from

xpra-native

pillai (pillai@undisclosed.example.com) — 2026-02-16T11:18:53+00:00

Note - VPN is necessary for off campus access. It is possible to use Xpra with a native client. The native client is expected to perform better than the browser solution, as it supports hardware acceleration available on the client. The native client supports OpenGL acceleration, seamless windows for remote applications (like running natively) and multi monitor support. Here are the steps -

xpra_x2go_alternative

pillai (pillai@undisclosed.example.com) — 2026-02-16T11:18:39+00:00

Note - VPN is necessary for off campus access. Xpra is now available on the cluster as an alternative to X2go. Unlike X2go, this solution only needs a web browser with similar performance. Here are the steps - * Use an ssh client to connect to cluster.mathstat.dal.ca

jupyterhub

pillai (pillai@undisclosed.example.com) — 2026-02-16T11:17:25+00:00

Here are the steps to use JupyterHub on cluster nodes Note - VPN is necessary for off campus access. Find the least loaded compute node from here or qstat -f Use the corresponding compute node from the links below Host Name JupyterHub Link

rstudio

pillai (pillai@undisclosed.example.com) — 2026-02-16T11:16:36+00:00

Here are the steps to use Rstudio server on cluster nodes Note - VPN is necessary for off campus access. Find the least loaded compute node from here or qstat -f Use the corresponding compute node from the links below Host Name Rstudio Link

hardware

pillai (pillai@undisclosed.example.com) — 2026-02-16T11:15:12+00:00

Server Model CPU RAM CPU Cores per server Host Info 4 x Dell PowerEdge R630 1U 2x E5-2697 v4 @ 2.3 GHz 256 GB RAM

xpra-connect.png - created

pillai (pillai@undisclosed.example.com) — 2025-10-10T11:47:57+00:00

xpra-applications.png - created

pillai (pillai@undisclosed.example.com) — 2025-10-10T11:44:13+00:00

xpra-ul-dl.png - created

pillai (pillai@undisclosed.example.com) — 2025-10-10T11:42:13+00:00

xpra-start-menu.png - created

pillai (pillai@undisclosed.example.com) — 2025-10-10T11:41:12+00:00

xpra-start.png - created

pillai (pillai@undisclosed.example.com) — 2025-10-10T11:39:17+00:00

xpra-config.png - created

pillai (pillai@undisclosed.example.com) — 2025-10-10T11:37:17+00:00

xpra-config-window.png - created

pillai (pillai@undisclosed.example.com) — 2025-10-10T11:35:21+00:00

desktop.png - created

pillai (pillai@undisclosed.example.com) — 2024-03-31T15:46:41+00:00

xpra-html5-client.png - created

pillai (pillai@undisclosed.example.com) — 2024-03-31T15:44:02+00:00

logo.png - created

pillai (pillai@undisclosed.example.com) — 2024-03-12T16:16:08+00:00

x2go-menu.jpg - created

pillai (pillai@undisclosed.example.com) — 2017-12-21T19:46:25+00:00

select-x2go.jpg - created

pillai (pillai@undisclosed.example.com) — 2017-12-21T19:45:44+00:00

disable-sound.jpg - created

pillai (pillai@undisclosed.example.com) — 2017-12-21T19:44:45+00:00