Development for LHC@home

ERROR:root:No message received! Nothing to do! . . .

I'm not sure I understand... Where is this error message coming from and what job queue are you saying is empty? I see plenty of tasks available on the server status page and my hosts haven't had any problem getting work, but maybe that's not what you are referring to.

Would it be possible to keep all LHC related project under the one related name?
CMS-dev in this case does not suggest any relation to LHC. I suggest it would be more in line if you called it /LHC-dev or /LHC-test. Once the site meets the requirement and app needs than it could be changed to another LHC sub project.
As it is the project needs an invitation and is considered as a test project. As such starting a ne sub project from the result of the test would be normal as long as you announce the start of the new project name.

I'm running vboxwrapper v26159 anonymous now.
For MAC that version is also compiled/available.
Not for Linux, maybe not needed cause Linux probably don't suffer from the same error condition.

New version now available. Added both flags (at Ben's request):

enable_vm_savestate_usage/
disable_automatic_checkpoints/

As I understand it, this means you won't get the periodic checkpointing of the VM.

[Edit] Had to remove the angle brackets as otherwise the tags disappeared in my browser![/Edit]

Hi Ivan (and Rom),

Just tested the new feature on my Mac but it didn't work. The boot of CMS code worked fine. After a BOINC suspend, the VM went into Paused state (and could be resumed OK), but after an exit of the BOINC manager the VM was left in PowerOff state, (not "Saved" state) and hence rebooted when BOINC was restarted.

Ben

Can you abort the task so I can look at the stderr text?

----- Rom

Ok so now I got 3 WUs successfully ending on my iMac (and another one currently crunching) and I can see all seems to go well so what you say is that I can stop CMS for the moment and let other projects go on instead ?

Sorry, I misunderstood an email from Rom Walton, I have put back the enable_cern_dataformat tag in the job XML file.

I have just updated the VBox wrapper for MAC to version 26156. Please let us know if you have any problems.

Hi

Thanks a lot for the information.

I'm a bit skeptical though : we are helping you starting an infrastructure for a new project, however when it works well you will move it to an existing infrastructure (vLHC) as "another project", so what's the point ? Am I missing something ?

They are macs. Could that have something to do with the short run time?

I immediately got "computation error" after switching to the latest version. I had previously removed the old VM by hand. This "computation error" persists even after a project reset!

Hi Ben,

What happens, if you upgrade to a newer VBOX-version with extension pack installed?
I ran one shortened task without any intervention of my site with success.

http://boincai05.cern.ch/CMS-dev/result.php?resultid=25660

I am abit confused here regarding VM's. Do we as users of BOINC need to download and configure VM's or is it automatically done by your wrapper and we do not have to do anything..?

For example, I wish to run ATLAS as well as another LHC program using VM, do I have to do anything else bar selecting in BOINC to run those apps?

Where are we in getting the aforementioned links fixed?

In addition the MCPLOTS Stats links to the wrong user. I am user ID 164 in this project but the link is to the user ID 164 of VLHCathome. Just for the record my VLHCathome ID is 21804.