Development for LHC@home

We are currently testing the Theory simulations application on our consolidated LHC@home project.

It would be great if some of you please could test that the chain of communication with the VM etc works fine for you. In order to get Theory tasks, you will need to explicitly enable Theory simulations in your project preferences on LHC@home. (The default preference is Sixtrack only as many volunteers have not setup their BOINC clients for virtualisation.)

There will be a few tasks only for test purposes until the setup has been validated.

Many thanks for your help and contributions to LHC@home!

At first try:

20284 LHC@home 1.0 14 Nov 11:51:16 work fetch resumed by user
20287 LHC@home 1.0 14 Nov 11:51:19 update requested by user
20288 LHC@home 1.0 14 Nov 11:51:23 Sending scheduler request: Requested by user.
20289 LHC@home 1.0 14 Nov 11:51:23 Requesting new tasks for CPU
20290 VirtualLHC@home 14 Nov 11:51:26 Scheduler request completed: got 0 new tasks
20291 VirtualLHC@home 14 Nov 11:51:26 This project is using an old URL. When convenient, remove the project, then add http://lhcathome2.cern.ch/vLHCathome/
20292 VirtualLHC@home 14 Nov 11:51:26 Already attached to a project named VirtualLHC@home (possibly with wrong URL)
20293 VirtualLHC@home 14 Nov 11:51:26 Consider detaching this project, then trying again
20294 VirtualLHC@home 14 Nov 11:51:26 Can't find host record
20295 VirtualLHC@home 14 Nov 11:51:26 Invalid or missing account key. To fix, remove and add this project .

I suddenly had 2 projects with the same name VirtualLHC@home. Detached both and attached again:

20302 VirtualLHC@home 14 Nov 11:53:50 Resetting project
20303 VirtualLHC@home 14 Nov 11:53:50 Detaching from project
20304 VirtualLHC@home 14 Nov 11:53:50 Resetting project
20305 VirtualLHC@home 14 Nov 11:53:50 Detaching from project
20306 14 Nov 11:54:44 Fetching configuration file from https://lhcathome.cern.ch/lhcathome/get_project_config.php
20307 https://lhcathome.cern.ch/lhcathome/ 14 Nov 11:54:51 Master file download succeeded
20308 https://lhcathome.cern.ch/lhcathome/ 14 Nov 11:54:56 Sending scheduler request: Project initialization.
20309 https://lhcathome.cern.ch/lhcathome/ 14 Nov 11:54:56 Requesting new tasks for CPU and AMD/ATI GPU
20310 LHC@home 14 Nov 11:54:57 Scheduler request completed: got 0 new tasks
20311 LHC@home 14 Nov 11:54:57 Project has no tasks available
20312 LHC@home 14 Nov 11:55:20 update requested by user
20313 LHC@home 14 Nov 11:55:23 Sending scheduler request: Requested by user.
20314 LHC@home 14 Nov 11:55:23 Requesting new tasks for CPU
20315 LHC@home 14 Nov 11:55:25 Scheduler request completed: got 0 new tasks
20316 LHC@home 14 Nov 11:55:25 Project has no tasks available

Thanks, the last URL is the correct one.

The first bunch of tasks were gone when you tried. We generated more, but they may be gone when you see this.

We need to check the max number of tasks pr. day pr. client and make sure this does not conflict with the Sixtrack use case where there are many short tasks pr. day.

Meanwhile fished 1 job with settings max # of jobs 1 and max # of CPUs also 1.

Running OK.

Thereafter I fished another one with settings max # of jobs 2 and max # of CPUs also 2.

I got a second job, that started OK, but not as a dual core (mt-task), but as single core.

Now testing (with lucky fishing) # of jobs = No limit and with # of CPUs 1.

Just changed my LHC project preferences to accept the new apps but haven't received any yet.

On M^cPlots I'm user -196 for vLHC-dev and 3883 for vLHC.
Will the consolidated site produce a third user ID or will the three outputs be consolidated themselves into a single ID?

On M^cPlots I'm user -196 for vLHC-dev and 3883 for vLHC.
Will the consolidated site produce a third user ID or will the three outputs be consolidated themselves into a single ID?

I found my LHC-host on MCPLOTS with the VM-jobs done, but with userid=Unknown

Now testing (with lucky fishing) # of jobs = No limit and with # of CPUs 1.

The "No limit" setting seems to be really unlimited (depending on desired cache size) and no longer limited to 6 like in project vLHCathome.

I also tested with an app_config.xml the possibility of running 2 jobs in one VM. That's working too.

Used app_config.xml for project LHC@Home:

<app_config>
<project_max_concurrent>2</project_max_concurrent>
<app>
<name>Theory</name>
<max_concurrent>2</max_concurrent>
<fraction_done_exact/>
</app>
<app_version>
<app_name>Theory</app_name>
<plan_class>vbox64</plan_class>
<avg_ncpus>2.000000</avg_ncpus>
<cmdline>--nthreads 2.000000</cmdline>
<cmdline>--memory_size_mb 1024</cmdline>
</app_version>
</app_config>

Is this the Theory 262.50 task??
With the 254.72MB .vdi ?

Btw they need to at least change the message board rule there so a person with over 1 million credits can post regardless if they have any RAC this month.

I have been there since October 2004

---

Mad Scientist For Life

Yes and
Yes.

A pair started a couple of hours ago and the other 2 machines have collected a pair each when I manually suspended some other work.
4 day estimate but I expect that to sort itself as usual as Boinc learns about the new app's behaviour.

Thanks Ray

I got 8 tasks on my 8-core so I have 7 suspended and started one running to see how it goes.

(I also have 4 vLHC and one vLHC-dev running on this same host)

---

Mad Scientist For Life

currently the naming of the plan_class seems to be

vbox64_mt_mcore

as compared to

vbox_64_mt_mcore

with an additional underscore in the spelling

Btw they need to at least change the message board rule there so a person with over 1 million credits can post regardless if they have any RAC this month.

I have been there since October 2004

Thanks for pointing this out. I've dug into the Sixtrack DB and removed the RAC requirement on LHC@home/Number crunching, so you should be able to post there now. (You need a tiny bit of total credit to post, so it should work for you.)

The Theory task is the same as on vLHCathome.

Thanks for all your contributions to LHC@home and keep on crunching! :-)

Thanks for pointing this out. I've dug into the Sixtrack DB and removed the RAC requirement on LHC@home/Number crunching, so you should be able to post there now. (You need a tiny bit of total credit to post, so it should work for you.)

The Theory task is the same as on vLHCathome.

Thanks for all your contributions to LHC@home and keep on crunching! :-)

Thanks Nils, much appreciated.

I am still running some here and lots of them at vLHC and now on my 3rd new VB task is running over at the LHC SixTrack and the first two ran with no problems.

.....back to work

-Samson

---

Mad Scientist For Life