ATLAS seems to block my BOINC

Author	Message
Anmibe Send message Joined: 6 Feb 08 Posts: 1 Credit: 10,144 RAC: 0	Message 45774 - Posted: 2 Dec 2021, 15:31:44 UTC ATLAS seems to block my BOINC. I got a few days ago two WU with a presumed calculation time of 00:01:34:59 each, but it doesn’t calculate anything, the processor is doing nothing. Other projects like PrimeGrid in my case is stopped as well, no calculation. not downloads. Setting the LHC@home to pause, PrimeGrid starts calculations immediately and if necessarily downloads new WU. Resuming LHC@home stops calculating everything. Do 02 Dez 2021 16:01:20 CET \| LHC@home \| update requested by user Do 02 Dez 2021 16:01:23 CET \| LHC@home \| project resumed by user Do 02 Dez 2021 16:01:25 CET \| LHC@home \| Sending scheduler request: Requested by user. Do 02 Dez 2021 16:01:25 CET \| LHC@home \| Not requesting tasks: don't need (job cache full) Do 02 Dez 2021 16:01:27 CET \| LHC@home \| Scheduler request completed Do 02 Dez 2021 16:01:27 CET \| LHC@home \| Project requested delay of 6 seconds Do 02 Dez 2021 16:02:22 CET \| LHC@home \| project suspended by user There is plenty of disk space and enough reserved for BOINC. So, which job cache is meant? My fault? Bad WU? ID: 45774 · Reply Quote

maeax Send message Joined: 2 May 07 Posts: 2090 Credit: 158,836,916 RAC: 126,496	Message 45775 - Posted: 2 Dec 2021, 15:37:59 UTC In the Atlas-folder is Yet's checklist. You can check the list to see what went wrong. ID: 45775 · Reply Quote

computezrmle Volunteer moderator Volunteer developer Volunteer tester Help desk expert Send message Joined: 15 Jun 08 Posts: 2401 Credit: 225,470,825 RAC: 123,693	Message 45776 - Posted: 2 Dec 2021, 15:49:42 UTC - in response to Message 45774. I guess you are using standard settings. In this case ATLAS vbox is automatically configured to create a VirtualBox VM that allocates 8 cores and 10200 MB RAM. Far too much since your computer has only 12 GB RAM. You may go to this page: https://lhcathome.cern.ch/lhcathome/prefs.php?subset=project Set "Max # CPUs" to 4, cancel all ATLAS tasks you already have downloaded and request fresh work. ID: 45776 · Reply Quote

Jonathan Send message Joined: 25 Sep 17 Posts: 99 Credit: 3,232,678 RAC: 5,537	Message 45777 - Posted: 2 Dec 2021, 16:00:25 UTC - in response to Message 45774. That check list is a very good idea. I am going to take a guess that the VM created for Atlas is taking about 10Gb of RAM and the number of processors is set to 8 within the VM. Go to your LHC preferences and set the following below. This will run one Atlas task with the minimum amount of RAM required and create a VM with a single processor. You probably have to set no new tasks for LHC, abort any current Atlas tasks, exit and restart boinc after changing your preferences. I looked up your processor and you have 4 true cores. That is the highest you should set your Max # CPUs to. You might need to look at a different sub project, rather than Atlas Max # jobs 1 Max # CPUs 1 ID: 45777 · Reply Quote

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