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Getting Started on Compute Canada National Systems

Compute Canada’s newest national systems -- Cedar and Graham -- are now available for use by researchers.

How To Access

  • You can SSH to the new servers using the following login nodes:
    cedar.computecanada.ca
    graham.computecanada.ca
    ** Note: You will need to use your Compute Canada username and password to login (the same credentials you use for the CCDB). If you have troubles logging in or have forgotten your Compute Canada username or password, contact support@computecanada.ca

  • You can transfer files to and from the new systems using the Globus endpoints:
    computecanada#cedar-dtn
    computecanada#graham-dtn

How To Use

The Compute Canada Documentation Wiki will be your go-to reference centre for step-by-step instructions and documentation for:

Getting Help & Reporting Issues

Mini-Webinars - Intros to the Basics

A series of short webinars (5-10 minutes each) are available for quick and basic overviews of the new systems. These are meant to complement the Documentation Wiki pages, which are more detailed.  

  • Getting an account: If you don’t have a Compute Canada account, you’ll need to register for one to access these new national systems.
  • General info: General information about the new national systems.
  • Getting help: Need help? This short video will show you how and where to get it.
  • Software environment: Learn more about the software environment of the national systems.
  • File systems: Discover the ins and outs of the file systems on the new national systems.
  • Managing jobs: Find out how to manage jobs on the new national systems, including basic slurm commands.
  • Common mistakes to avoid: Save yourself time and discover the most common mistakes to avoid.
  • Accessing the environment: This short video will tell you everything you need to know about accessing the new environment - from login to data transfer.

Other National System Training Events

  • Introduction to Using Cedar
    On July 12, WestGrid hosted an introduction to using Cedar. The demo included instructions for logging in, exploring the file systems, compiling basic programs, working with modules, running jobs via the SLURM scheduler, running interactive jobs, finding documentation and getting help. 
    Click here to view the recording

  • How Jobs are Scheduled to Run on Graham and Cedar
    On July 19, SHARCNET hosted a webinar that described the configuration of the national systems' Slurm scheduler and explained how it determines how jobs are dispatched to resources. This presentation also provided recommended best practices when submitting jobs and demonstrate tools for monitoring jobs and the job queue on Graham and Cedar.
    Click here to view the recording

  • What's New & Exciting About Graham's GPUs
    On June 21, SHARCNET presented a webinar outlining the newest and largest SHARCNET cluster and Compute Canada national system, Graham. This webinar discussed all the new important features of the Graham GPUs, with a live demonstration.
    Click here to view the recording

RAC 2017 Allocations

The RAC 2017 allocations were implemented on WestGrid systems and the new Cedar system on June 30, 2017. Users should see their jobs running with their RAC 2017 priorities. WestGrid systems scheduled for defunding were not allocated, and will remain with their RAC 2016 priorities. Current jobs should continue to run during the RAC 2017 updates to the schedulers, however, due to complicated configurations required for the mix of new and old schedulers and the change of RACs some jobs may fail. Please contact us if there are any issues with current jobs terminating or new jobs failing to start.

Migrating to the New Systems

If you are currently using a WestGrid system but would like to move your compute and data storage use to Cedar or Graham, please refer to this General Directives for Migration page on the Documentation Wiki.