Message boards : ATLAS application : Web preferences when keeping multiple tasks in queue
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greg_be

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Message 43621 - Posted: 16 Nov 2020, 18:45:41 UTC

Something you need to be aware of if your using a high amount of cores and trying to keep a bunch of ATLAS jobs in queue.

You will need to put in an app_config file to restrict ATLAS to just 4 cores and 1 task otherwise it will try to run 2 jobs at 4 cores each and stall and blow up.

I am trying to keep at least 3 ATLAS jobs in queue plus the active running one because of these server related settings that sometimes lead to not getting any jobs. But if I do that, then even the web settings of 4 cores does not restrict BOINC from trying to run at least 2 jobs simultaneously. Then you need app_config.

Or at least in my case this is the only way it works. Maybe it is different for others? I run a 16 core machine and ATLAS tries to us 8 cores (4 per task) if I maintain a 3 job queue with one active.
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Jim1348

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Message 43622 - Posted: 16 Nov 2020, 22:57:42 UTC - in response to Message 43621.  

I am running native ATLAS, and have no problem running four ATLAS at once (two cores each).
I have often run four cores each also with no problem with multiple work units.

Maybe it is different on VirtualBox.
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greg_be

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Message 43623 - Posted: 16 Nov 2020, 23:01:28 UTC - in response to Message 43622.  

I am running native ATLAS, and have no problem running four ATLAS at once (two cores each).
I have often run four cores each also with no problem with multiple work units.

Maybe it is different on VirtualBox.


That's native. I'm running the vanilla VB version.
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Greger

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Message 43624 - Posted: 17 Nov 2020, 0:23:23 UTC - in response to Message 43623.  

I am running native ATLAS, and have no problem running four ATLAS at once (two cores each).
I have often run four cores each also with no problem with multiple work units.

Maybe it is different on VirtualBox.


That's native. I'm running the vanilla VB version.


You can if you could change memory to same type and brand.
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greg_be

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Message 43667 - Posted: 22 Nov 2020, 11:57:14 UTC - in response to Message 43624.  

I am running native ATLAS, and have no problem running four ATLAS at once (two cores each).
I have often run four cores each also with no problem with multiple work units.

Maybe it is different on VirtualBox.


That's native. I'm running the vanilla VB version.


You can if you could change memory to same type and brand.


That's interesting. I have room for 4 sticks. So the same brand, but also the same amount of memory per stick?
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Message boards : ATLAS application : Web preferences when keeping multiple tasks in queue


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