Grex’s internet connection to all login nodes is now migrated to the UManitoba network IP space. New login node names:
grex.hpc.umanitoba.ca (instead of grex.westgrid.ca; same for the ones below) bison.hpc.umanitoba.ca tatanka.hpc.umanitoba.ca yak.hpc.umanitoba.ca aurochs.hpc.umanitoba.ca
On Friday, Sep 09 between 12:00 and 2:00 PM, we will switch the network from BCNET {westgrid.ca} to UManitoba network. During this process, access to Grex via old DNS names {grex, bison, tatanka} will be disrupted. We expect less disruption for yak.hpc.umanitoba.ca
The process will not affect users' data.
OpenOnDemand interface will also be disabled and hopefully the service will be restored sometime after the outage when new SSL certificates are in place.
In the meantime, you can use yak to connect to Grex:
ssh your-user-name@yak.hpc.umanitoba.ca
Replace by your Alliance (Compute Canada) user name.
Please note that this node has avx512 architecture and if you have to use it for compiling your codes, they may not run on “compute” partition. Other than that, it should behave as any other old login node.
Last updated: September 6, 2023 at 3:57 PM UTC