[Ansys] FW: Running Ansys on Compute Canada clusters

[Naimat Khan]

As reported below, Sundeep tried ANSYS on other clusters and it works there too.

Cheers,
Naimat

-----Original Message-----
From: Kel Raywood <kray at triumf.ca> 
Sent: October 31, 2022 2:28 PM
To: Sundeep Ghosh <sundeep at triumf.ca>
Cc: Steve McDonald <mcdonald at triumf.ca>; Naimat Khan <khan at triumf.ca>
Subject: Re: Running Ansys on Compute Canada clusters

Thanks for the message.   I've CC'ed to Naimat and Steve so that they know it works on all the clusters.

On 10/31/22 13:45, Sundeep Ghosh wrote:
> Hello Kel,
>
> Wanted to give up an update. I tried to run ANSYS on other clusters, namely beluga, cedar and narval, as well and all worked.
>
> I'm sharing the license debug files with you which show the successful connections. You can check from TRIUMF's end to confirm the same.
>
> Hope it helps.
>
> Thank you,
> Sundeep


Yes, I see the connections from NAT servers of beluga at 13:10, cedar at 13:21, and narval at 13:39 .

Kel


> -----Original Message-----
> From: Sundeep Ghosh
> Sent: October 28, 2022 4:03 PM
> To: Kel Raywood <kray at triumf.ca>
> Subject: RE: Running Ansys on Compute Canada clusters
>
> Thanks, Kel for the appreciation. It would not have been possible at all without the help from you and Steve.
>
> Just wanted to give you an update. I just succeeded to output the results files as well. Basically, playing around with the Slurm scripts did the trick.
>
> So now I can give Ansys runs to Compute Canada without any trouble at all and copy the results file from Compute Canada to my local PC. This will eventually help so much as we can leverage the computational compatibilities of Compute Canada to great effect.
>
> Best,
> Sundeep
>
> -----Original Message-----
> From: Kel Raywood <kray at triumf.ca>
> Sent: October 28, 2022 12:32 PM
> To: Naimat Khan <khan at triumf.ca>
> Cc: Sundeep Ghosh <sundeep at triumf.ca>; Daniel Thomson 
> <dthomson at triumf.ca>; Steve McDonald <mcdonald at triumf.ca>; Aurelia 
> Laxdal <aureliat at triumf.ca>; Alexander Gottberg <gottberg at triumf.ca>; 
> Peter Kunz <pkunz at triumf.ca>; Luca Egoriti <legoriti at triumf.ca>
> Subject: Re: Running Ansys on Compute Canada clusters
>
> I've copied this message to several people (Aurelia, Peter, Luca) who were interested using Ansys on ComputeCanada several years ago,  but we didn't get it working.
>
> Sundeep Ghosh, a student of Alexander Gottberg, has succeeded in using Ansys on the Graham cluster of Compute-Canada (now DRAC = Digitial Research Alliance of Canada), with a license checked out from the TRIUMF license-server,.   We expect, and Sundeep will soon test, that this also works on the other general-purpose clusters;  cedar, beluga and narval.
>
> Sundeep contacted the DRAC support team and got the detail instructions on the IP-addresses from which the connections to the license-server would originate, and also provided the address and port-numbers of our license-server so that the DRAC admins could allow the outbound connections.     Steve made the changes to the TRIUMF perimeter firewall that allowed the connections from the DRAC addresses.
>
> I modifed the Ansys license-server configuration so that license-requests from a DRAC address will only succeed if the associated username is in an allow-list.    At present, only Sundeep's DRAC username is in the allow-list.
>
> If anyone else is interested in using Ansys on one of the DRAC clusters, submit a ticket to the Network-Requests queue of helpdesk with "Ansys"
> in the subject, and provide your DRAC username.   One of Dan or I will add it to the allow list.
>
> To use the TRIUMF license-server on one of the clusters, you will need to create a file to your home directory on the cluster.
>
> Filename:   ~/.licenses/ansys.lic
>
> containing the following two lines:
>
> setenv("ANSYSLMD_LICENSE_FILE", "1055 at keys.triumf.ca") 
> setenv("ANSYSLI_SERVERS", "2325 at keys.triumf.ca")
>
> Reminder to all - you can see the current usage of the TRIUMF Ansys 
> licenses by clicking on View-Current-License-Usage at 
> https://ccn.triumf.ca/software/engineering/ansys
>
> Thanks Sundeep for perservering with this.
>
> --
> Kelvin Raywood
> TRIUMF Computing
>