1) Message boards : CMS Application : CMS@Home difficulties in attempts to prepare for multi-core jobs (Message 50069)
Posted 28 Apr 2024 by Dark Angel
Post:
So people are getting punished (host punishment, discussed on the linked page) for having to abort huge numbers of single core tasks that were never going to do actual work because the CMS team couldn't be arsed clearing out the work caches.
People punished because you lot didn't do your jobs.
And you're sneering down on people who don't appreciate being screwed around.
Real nice.

And the credit system used is a CHOICE made by each project. There are options. Bleating that the users need to complain elsewhere is another cop-out.
2) Message boards : CMS Application : CMS@Home difficulties in attempts to prepare for multi-core jobs (Message 50067)
Posted 28 Apr 2024 by Dark Angel
Post:
That's a cop-out. Every other project is awarding points correctly. If it were not CMS related then Atlas and Theory would be showing the same issues. If it were VBox related then other VBox projects would show the same issues. They don't.
3) Message boards : CMS Application : CMS@Home difficulties in attempts to prepare for multi-core jobs (Message 50063)
Posted 28 Apr 2024 by Dark Angel
Post:
Run time 13 hours 22 min 46 sec
CPU time 1 days 22 hours 56 min 57 sec
Validate state Valid
Credit 7.75

Excuse me CMS admin? A moment of your time?

What the hell??
4) Message boards : ATLAS application : PC almost unresponsive when running 4x Atlas units (Message 50058)
Posted 27 Apr 2024 by Dark Angel
Post:
5950x, 128gb ram.
Ill try adjusting the number of cores and see if that helps cheers.


On you Windows PC
Go to the VirtualBox site and download the Extension Pack that matches the version of VirtualBox you have.
Open the VBox Manager app
Click File, then Tools, then Extension Pack manager, then Install.
Navigate to where you saved the Extension Pack file and select it.

Do the same with the Linux PC.
5) Message boards : CMS Application : CMS@Home difficulties in attempts to prepare for multi-core jobs (Message 50057)
Posted 27 Apr 2024 by Dark Angel
Post:
Run time 5 hours 58 min 38 sec
CPU time 14 hours 40 min 18 sec
Validate state Valid
Credit 3.56

Run time 3 hours 9 min 48 sec
CPU time 5 hours 46 min 57 sec
Validate state Valid
Credit 1.88

Run time 5 hours 50 min 56 sec
CPU time 14 hours 38 min 39 sec
Validate state Valid
Credit 3.63

Excuse me, but what??
6) Message boards : CMS Application : CMS@Home difficulties in attempts to prepare for multi-core jobs (Message 50054)
Posted 27 Apr 2024 by Dark Angel
Post:
I finally got some linux mt units.
Only ended up resetting the project several times and nuking eleven hundred plus empty single core units to finally get there.
7) Message boards : CMS Application : CMS@Home difficulties in attempts to prepare for multi-core jobs (Message 50048)
Posted 27 Apr 2024 by Dark Angel
Post:
Some of us REALLY need the option to disable single core CMS work. I'm still getting nothing but the single core wrappers. Project reset does nothing but force me to download hefty vdi files over again and still gives me single core CMS. Multi threaded Atlas native works fine.
8) Message boards : CMS Application : CMS@Home difficulties in attempts to prepare for multi-core jobs (Message 50034)
Posted 24 Apr 2024 by Dark Angel
Post:
Turned off proxy in Boinc manager, reset project. Still only downloading the CMS_2022_09_07_prod.vdi and not the 70.20 (vbox64_mt_mcore_cms) one.
Turning proxy back on now.
9) Message boards : CMS Application : CMS@Home difficulties in attempts to prepare for multi-core jobs (Message 50033)
Posted 24 Apr 2024 by Dark Angel
Post:
Without Proxy, the same?

I'll try disabling the proxy, but the new vdi has a different name and isn't being requested as far as I can tell.
10) Message boards : CMS Application : CMS@Home difficulties in attempts to prepare for multi-core jobs (Message 50030)
Posted 24 Apr 2024 by Dark Angel
Post:
2024-04-24 22:17:02 (1865718): Setting Memory Size for VM. (2048MB)
2024-04-24 22:17:02 (1865718): Setting CPU Count for VM. (1)

Still NOT working
https://lhcathome.cern.ch/lhcathome/result.php?resultid=410235598
11) Message boards : CMS Application : CMS@Home difficulties in attempts to prepare for multi-core jobs (Message 50028)
Posted 23 Apr 2024 by Dark Angel
Post:
Reset project: still not downloading the CMS multithread vdi
12) Message boards : CMS Application : CMS@Home difficulties in attempts to prepare for multi-core jobs (Message 50027)
Posted 23 Apr 2024 by Dark Angel
Post:
Cores per work unit set to four: check
Machine on correct profile: check
Guest Extensions correct version: check (VBox Version 7.0.16 r162802 (Qt5.15.3) )
Work fetch enabled: check
Abort all existing single core work units: check
Request fresh work: check
Check stderr for running CMS work unit: only requests single core and VM only allocates a single core, VBox Extension Pack recognised
Check VBox manager: all VMs show Extension pack available

Something isn't right.
13) Message boards : ATLAS application : PC almost unresponsive when running 4x Atlas units (Message 50017)
Posted 23 Apr 2024 by Dark Angel
Post:
You said you're on Windows so you're running VBox units.
There's a small overhead running VirtualBox.
You didn't specify any system details, so it's possible you've choked the CPU's cache on the Windows box but the others aren't as loaded.

You can set the number of cores used per work unit in your project preferences. if you want to run a different number on each machine you can also set up different profiles with different settings.
14) Message boards : CMS Application : CMS@Home difficulties in attempts to prepare for multi-core jobs (Message 49989)
Posted 21 Apr 2024 by Dark Angel
Post:
I'm only running my queue set to 1:1
At this rate I'll halve that.
15) Message boards : CMS Application : CMS@Home difficulties in attempts to prepare for multi-core jobs (Message 49987)
Posted 21 Apr 2024 by Dark Angel
Post:
Reset the project, made sure it's set to use 4 cores, Atlas native is running ok on four cores (been playing with HDDs after I had a failure so there's some errored and aborted tasks in my records), Theory is as reliable as ever <sarcasm>, but CMS just won't grab any of the multi-core work but keeps getting single core jobs that supposedly aren't even in the queue.
16) Message boards : CMS Application : CMS@Home difficulties in attempts to prepare for multi-core jobs (Message 49982)
Posted 20 Apr 2024 by Dark Angel
Post:
The single core back end that's cached now at CERN
Is completely gone they said
The single core back end that's cached now at CERN
Is completely gone ...
And still
They come!

<to the tune of The Eve of the War - Jeff Wayne's War of the Worlds>
17) Message boards : CMS Application : CMS@Home difficulties in attempts to prepare for multi-core jobs (Message 49963)
Posted 18 Apr 2024 by Dark Angel
Post:
I'm still only getting single core work units at this stage though my profile is set for four cores (for Atlas jobs originally)
I have a few to get through so I'll just watch as see what pops up.
18) Questions and Answers : Unix/Linux : theory simulation gets error at 14-minute mark (Message 49945)
Posted 12 Apr 2024 by Dark Angel
Post:
I would also like to note that there is no warning/notice that additional software needs to be installed to run LHC tasks

It is mentioned at the homepage as well as a couple of times at the FAQ page:

https://lhcathome.cern.ch/lhcathome/
"Please note that some of the applications on LHC@home requre Virtual Box to be installed."


I am aware of that notice and (just like any other newbie that follows guidance) I installed Virtualbox when installing Boinc.
It should be more specific. Something like "LHC@home requires Virtualbox and CVMFS to be installed for most tasks to run properly. This is how to install CVMFS: https://lhcathome.cern.ch/lhcathome/forum_thread.php?id=5594#44232"

Otherwise the task would not run, a search on bing would provide useless, the Boinc event logs would only report a failure and the newbie would (if they even know how to use the forums) ask the same question I did.

You don't need CVMFS AND Virtualbox for things to run. You only need CVMFS if you plant to run Linux Native tasks. If you do not select that specific option then you can run CMS, Theory, and Atlas tasks with Virtualbox alone.
19) Message boards : CMS Application : CMS@Home difficulties in attempts to prepare for multi-core jobs (Message 49906)
Posted 8 Apr 2024 by Dark Angel
Post:
Any word on release to production yet?
20) Questions and Answers : Windows : Having a lot of VM issues - now showing "No work available to process" (Message 49884)
Posted 3 Apr 2024 by Dark Angel
Post:
You can only run one hypervisor (the thing that manages virtual machines) on a given system. Hyper-V is a hypervisor. So is VirtualBox. Hyper-V loads before VirtualBox when you start the system. They work slightly differently but they compete for the same system resources. Since Hyper-V loads first it blocks VirtualBox.
You need to disable Hyper-V.


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