1) Message boards : Number crunching : VirtualBox needed? (Message 40859)
Posted 8 Dec 2019 by Profile Yeti
Post:
Ah, sorry, I'm doing this with VMWare ESX
2) Message boards : Number crunching : VirtualBox needed? (Message 40856)
Posted 8 Dec 2019 by Profile Yeti
Post:
AFAIK nested 64bit vbox is only possible on AMD CPUs.

Nope, I'm doing this on my XEONs
3) Message boards : ATLAS application : New console monitoring (Message 40363)
Posted 6 Nov 2019 by Profile Yeti
Post:
Crystal,

is it okay if I use your hardcopy for the checklist ?

Yeti

Since last night ATLAS (vbox) uses v2.2.0 of ATLAS Event Monitoring.
Example:
4) Message boards : ATLAS application : New console monitoring (Message 40362)
Posted 6 Nov 2019 by Profile Yeti
Post:
computezrmle, I like your new monitoring, this is much much better than what we had in the past !

Good work, thank you very much

I should remember to update the checklist
5) Message boards : Number crunching : Checklist Version 3 for Atlas@Home (and other VM-based Projects) on your PC (Message 40295)
Posted 27 Oct 2019 by Profile Yeti
Post:
From your hardcopys I would say you only need to enter your bios and switch VT-X on
6) Message boards : ATLAS application : ATLAS vbox version 2.00 (Message 40231)
Posted 21 Oct 2019 by Profile Yeti
Post:
Please upgrade to 6.0.x. (with ExtPack)

Maybe I missed it but I never saw a word from Projektteam that VirtualBox Version 6.x is okay to use with Atlas. And so long I will stay with 5.x

David,

which version of VirtualBox do you want us to use for the V2 ?

Latest 6.x or 5.x ?????
7) Message boards : ATLAS application : ATLAS vbox version 2.00 (Message 40199)
Posted 18 Oct 2019 by Profile Yeti
Post:
I don't think the project team let us know, it's normally one of us that tries it.

HM, not really a good idea. In the past, the wrapper of Atlas had some particularities so that it was not a good idea to switch to a new Major-Release from VirtualBox without the okay from the projectteam. Sometimes they had to make special preparations for the wrapper ...
8) Message boards : ATLAS application : ATLAS vbox version 2.00 (Message 40194)
Posted 18 Oct 2019 by Profile Yeti
Post:
Please upgrade to 6.0.x. (with ExtPack)

Maybe I missed it but I never saw a word from Projektteam that VirtualBox Version 6.x is okay to use with Atlas. And so long I will stay with 5.x
9) Message boards : Number crunching : Checklist Version 3 for Atlas@Home (and other VM-based Projects) on your PC (Message 40156)
Posted 15 Oct 2019 by Profile Yeti
Post:
For some reason, Atlas is using 10200 MB per instance of Atlas, despite an app_config setting it at 6600 MB for a 4 core job. Any ideas why this might be happening?


The needed memory is calculated by the LHC@Home-Server that doesn't know your app_config settings. It uses the Web-Preferences, so you should change your Web-Preferences regarding Max # jobs and Max # CPUs

As far as I know there is a bug in the server-software so these parameters are crossed interpreted, so you will have to play a little bit around
10) Message boards : Number crunching : LHC on android (Message 40097)
Posted 9 Oct 2019 by Profile Yeti
Post:
The arm/android executable is aarch64, your host is armv7, which is 32bit arm, thus you will not get sent anything.

James, thank you, i wasn't aware that this is only a 32-Bit System
11) Message boards : Number crunching : LHC on android (Message 40087)
Posted 7 Oct 2019 by Profile Yeti
Post:
Okay, I have one Android-6-Handy that asks for work since weeks, but never got any task: https://lhcathome.cern.ch/lhcathome/show_host_detail.php?hostid=10603561

The Flag allowing Test-Applications is set, also sixtracktest is checked, nothing has done the trick so far.

Does anyone have any idea what to try ?
12) Message boards : ATLAS application : Task will not end despite being 100% (Message 38873)
Posted 16 May 2019 by Profile Yeti
Post:
I'm having massive issues trying to get an ATLAS task to complete without giving a COMPUTATION ERROR.
The tasks are all 6 CPU tasks (I'd previously tried 8, but they never finish or error out)
The 6CPU tasks typically run for almost 3 days on my machine.

The computer is dual E5-2683 v3 giving 28 actual cores and RAM is 128GB.
Windows 10 Pro, Hyper-V is disabled.
BOINC Manager 7.12.2 (x64), Virtual Box 6.0.4 r128413 with extension pack

It crunches though Theory Simulation (6 CPU) tasks with no issue.

Please if someone could help me out, I really do want to contribute.

Thank you,
Ewin

I invite you to take a walk through my checklist
13) Message boards : News : Database problems (Message 38855)
Posted 15 May 2019 by Profile Yeti
Post:
Pentathlon hasn't startet yet...but whatever...

Nope, it HAS already started. With telling the participiants the name of the Sprint-Project, all try to get WUs immediatly ...
I want my Atlas tasks back, but i can not get any :-(
It is possible, I got some
14) Message boards : News : Database problems (Message 38850)
Posted 15 May 2019 by Profile Yeti
Post:
Could it be that LHC was victim of a hacker attack?

Nope, it is not a hacker attack, it is Pentathlon-Time and LHC is Project for Sprint
15) Message boards : Number crunching : Checklist Version 3 for Atlas@Home (and other VM-based Projects) on your PC (Message 38298)
Posted 19 Mar 2019 by Profile Yeti
Post:
Then I boosted the "switch between tasks every..." setting to 24 hours and got a considerably higher success rate
This is a very important point !
16) Message boards : Number crunching : Checklist Version 3 for Atlas@Home (and other VM-based Projects) on your PC (Message 38293)
Posted 19 Mar 2019 by Profile Yeti
Post:
...running a Xeon E5 2620v4 I would tend to think I get two green checks, but I don't.
I just checked it with my XEON E5 2620v3 and I get two green checks

Does it make sense to try all that on a box with 8Gig of RAM?

You hit the nail on the head !

I have run Atlas on similar boxes with 8 GB, but finally it didn't make me happy.

One Atlas with 4-Cores should work, but you should limit Atlas to run really only 1 WU at a time via app_config.xml

I have switched this box to run 3 or 4 Theory-Tasks and this works fine. Theory likes machine that restart only seldom.
17) Message boards : News : CERN Open Days 2019 (Message 38050)
Posted 22 Feb 2019 by Profile Yeti
Post:
Do you plan any special events for members / Crunchers of LHC@Home ?

Would like some kind of meeting (day or evening) with project-staff ...
18) Message boards : ATLAS application : WU uses wrong number of threads (Message 37933)
Posted 5 Feb 2019 by Profile Yeti
Post:
My client is configured to run 4-Core-WUs, but this WU uses 8 Threads (Cores):

19) Message boards : Number crunching : Checklist Version 3 for Atlas@Home (and other VM-based Projects) on your PC (Message 37904)
Posted 1 Feb 2019 by Profile Yeti
Post:
Hi BelgianEnthousiast,

makes me glad to hear that my Checklist could help you !

Thanks for your great feedback :-)

Yeti
20) Message boards : ATLAS application : Problems with BOINC:Virtualbox (Bad page map in process ...) (Message 37894)
Posted 1 Feb 2019 by Profile Yeti
Post:
HM, I had already made a note about this:

[Update 18.09.2018] Nowerdays Atlas runs only MultiCoreWUs, even if you run it with 1-Core only it will need up to 3,9 GB as SingleCore


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