1) Message boards : CMS Application : New Version 50.00 (Message 41969)
Posted 7 days ago by Jim1348
Post:
The next ten were empty, so I am back to native ATLAS only.
2) Message boards : CMS Application : New Version 50.00 (Message 41968)
Posted 7 days ago by Jim1348
Post:
I am running a CMS now, with two more in the buffer.
YMMV
3) Message boards : Number crunching : Recommended CVMFS Configuration for native Apps (Message 41862)
Posted 18 days ago by Jim1348
Post:
As of 2020-03-09 the recommended CVMFS settings to run ATLAS native and Theory native are as follows.
Volunteers are asked to check/update their local configuration.

/etc/cvmfs/default.local
CVMFS_REPOSITORIES="atlas,atlas-condb,grid,cernvm-prod,sft,alice"
CVMFS_SEND_INFO_HEADER=yes

Thanks a lot. I have recently been downloading this file:
sudo wget https://lhcathome.cern.ch/lhcathome/download/default.local -O /etc/cvmfs/default.local

Do you think that gives the same result?
4) Message boards : LHC@home Science : Did German physicists accidentally discover dark matter in 2014? (Message 41857)
Posted 18 days ago by Jim1348
Post:
Could we have already discovered dark matter?

That's the question put forth in a new paper published Feb.12 in the Journal of Physics G. The authors outlined how dark matter might be made of a particle known as the d*(2380) hexaquark, which was likely detected in 2014.

https://www.livescience.com/hexaquarks-could-explain-dark-matter.html

Confirming this would give LHC something interesting to do.
5) Message boards : CMS Application : EXIT_NO_SUB_TASKS (Message 41822)
Posted 23 days ago by Jim1348
Post:
for the moment.

The moment has passed.
6) Message boards : CMS Application : EXIT_NO_SUB_TASKS (Message 41819)
Posted 23 days ago by Jim1348
Post:
CMS is back and working, for the moment.
7) Message boards : CMS Application : EXIT_NO_SUB_TASKS (Message 41804)
Posted 26 days ago by Jim1348
Post:
Actually, that is quite encouraging. It means they are doing a ground-up fix.
No more empty work units.
Even a native version.
8) Message boards : News : CMS@Home up again (Message 41689)
Posted 22 Feb 2020 by Jim1348
Post:
This means if you have CMS and ATLAS enabled and CMS fails until your computer's quota is down to 0 then it can still get ATLAS (if available).

Maybe I am just unlucky. But for some time (including the present), whenever CMS fails then I can't get more of anything else.
I am out of native ATLAS at the moment, even though they have all completed successfully.

EDIT: Running only native ATLAS (without CMS) usually works for a while. I detached a few hours ago, but reattached and will try again.
9) Message boards : News : CMS@Home up again (Message 41687)
Posted 22 Feb 2020 by Jim1348
Post:
And I'm still not getting Atlas or Theory tasks, despite there being more of those showing as available on the server status page. I'm only being given CMS.

Ivan explained this. When CMS goes out, it takes the other ones with it too.
https://lhcathome.cern.ch/lhcathome/forum_thread.php?id=5298&postid=41543#41543

I think if the LHC staff were paid by the number of BOINC units run, they would think of another way of doing it.
10) Message boards : Number crunching : No tasks at all available? (Message 41674)
Posted 20 Feb 2020 by Jim1348
Post:
I've got 4 CMS tasks that have run for quite some time without failing, so I think they might have fixed everything :-)

That would be useful, if they ever get it really fixed. You never know.
11) Message boards : Number crunching : No tasks at all available? (Message 41672)
Posted 20 Feb 2020 by Jim1348
Post:
I just downloaded a native ATLAS.
https://lhcathome.cern.ch/lhcathome/workunit.php?wuid=133600650
12) Message boards : LHC@home Science : MICE: tech demo for Muon Collider (Message 41671)
Posted 20 Feb 2020 by Jim1348
Post:
Of course, the laser wake-field stuff might stir things around, too.

They are probably working on the surfatrons in California.
Great stuff.
13) Message boards : LHC@home Science : MICE: tech demo for Muon Collider (Message 41638)
Posted 19 Feb 2020 by Jim1348
Post:
That is quite promising I would think. But you still need to accelerate them. Could either the Tevatron at Fermilab or the LHC be converted to do that?
14) Message boards : News : CMS@Home up again (Message 41603)
Posted 16 Feb 2020 by Jim1348
Post:
All of my CMS just started erroring out. And it is not just the short ones with no work, but some have been running for 2 1/2 hours.
Something needs an upgrade again.
15) Message boards : Number crunching : Why do I still offer computing? (Message 41559)
Posted 13 Feb 2020 by Jim1348
Post:
CMS jobs all fail. No other jobs load when I turn those off.

It happens all the time to me. The best answer I have seen is from Ivan:
https://lhcathome.cern.ch/lhcathome/forum_thread.php?id=5298&postid=41543#41543

This project does heavy-duty computations, but it is not really set up for BOINC and the home user as their primary computing resource. Rather, they use large computing centers all over the world that do not use BOINC at all.

They do what they can, but it is a very complex operation. We have to live with it, or leave. (The remarkable part is that it sometimes works.)
16) Message boards : Number crunching : Can someone help me understand... (Message 41554)
Posted 12 Feb 2020 by Jim1348
Post:
Can anyone tell me how BOINC is improving, say, CMS.

BOINC just allows you to attach to the project and download the application and the data that runs on it.
You are really trying to do the simulations for the Compact Muon Solenoid (CMS) particle detector on the Large Hadron Collider particle accelerator at CERN.

Similarly for ATLAS, another particle detector. The Theory application is not tied to a particular detector, and the SixTrack project helps them to operate the accelerator beam.

So BOINC is just intermediary software. It does not do the actual work.
17) Message boards : News : CMS@Home accidentally shut down -- Please set No New Tasks (Message 41546)
Posted 12 Feb 2020 by Jim1348
Post:
So, it takes several days to ramp up to full production again if you allow your machine to deplete its quota.

Thanks. It makes sense now.
18) Message boards : CMS Application : EXIT_NO_SUB_TASKS (Message 41470)
Posted 4 Feb 2020 by Jim1348
Post:
It is about the same on ATLAS and Theory. I am within an hour of running our of work, and can't get any more.

EDIT: I just picked up a few Theory, but not enough to fill the buffer. That has been the story for some time now, now matter how I set the buffer. I can never get more than about 3 hours of work.
19) Message boards : CMS Application : EXIT_NO_SUB_TASKS (Message 41466)
Posted 4 Feb 2020 by Jim1348
Post:
Greetings from Punxsutawney.
:-(

That is a few hours drive from us. We have visited it once. Or maybe it was again and again.
I don't remember.
20) Message boards : Number crunching : Project balance (Message 41442)
Posted 1 Feb 2020 by Jim1348
Post:
Well I have another strange one, with no logical explanation at my end.

I just set up a new machine (no app_configs). My default location had CMS and native ATLAS selected (CPU=1), so it downloaded one ATLAS before I changed the location.

Then I changed the location to run only SixTrack and native Theory (no CMS or ATLAS). After downloading two Theory, it would not download any more until I allowed ATLAS also.
Now I have four native Theory and four native ATLAS (CPU=2), to fill up the 12 cores. So I will do ATLAS too, if that is what it wants (I had to install Singularity to get native ATLAS to run).

Maybe if it did what people asked, there would be more users.


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