Advanced search

Forums : Technical Support : memory and disk requirements?
Message board moderation

To post messages, you must log in.

AuthorMessage
tyler

Send message
Joined: 18 Feb 17
Posts: 2
Credit: 258,763
RAC: 234
Message 22586 - Posted: 11 Jul 2020, 5:39:02 UTC

Hello there.
Coming around here after being dorment for quite some time. I've only put one machine up here and it seemed to do okay.

I've got quite a variety of cores and am curious how memory/ram usage works. Am I to assume that if I have less memory, I should have all cores set in preferences for max number of CPUs? I'm guessing that having several (let's say 4 x 4 CPU WUs) on a 16 thread machine would use more memory than, say, 2 x 8 core WUs or 1 x 16 core?
I hope I'm making sense!

I've got a few dual socket Xeons which are quite underpowered in the ram department so I just want to make sure not to overload them thus invalidate or error out tasks.
thanks
ID: 22586 · Report as offensive     Reply Quote
Jonathan

Send message
Joined: 27 Sep 17
Posts: 161
Credit: 7,580,022
RAC: 683
Message 22587 - Posted: 11 Jul 2020, 19:17:48 UTC - in response to Message 22586.  

camb_boinc2docker work units will use 2Gb of ram for each running virtual machine. You can use the project preferences to control how many run concurrently and the number of CPUs assigned to a work unit.
If you need different settings for different computers on an account you will need to use the app_config.xml method from the FAQ section. You probably want to set CPUs between 4 and 8. You may have to pare back on concurrent work units depending on if you have trouble with "Postponed: VM job unmanageable, restarting later" errors.
I am not sure what the legacy application requires as I only run the camb_boinc2docker version.
ID: 22587 · Report as offensive     Reply Quote
tyler

Send message
Joined: 18 Feb 17
Posts: 2
Credit: 258,763
RAC: 234
Message 22588 - Posted: 12 Jul 2020, 0:25:36 UTC

Thank you. Exactly what I was looking for.
ID: 22588 · Report as offensive     Reply Quote

Forums : Technical Support : memory and disk requirements?