Development for LHC@home

Any news on fixing the server?

Not from me, but I guess you realise I'm not involved in that side of the business.
I'm sort of back in harness again -- manually submitted a new certificate proxy today because the current batch was going to run past the 7-day default. I have to work on the report of wishlists and their fulfilment now, for a meeting on Wednesday, so please add any comments you want to the "constructive suggestions wanted" thread, preferably before Monday.
I'll be working in parallel with my real job -- I learnt a few things I didn't realise about templated C++ code on Friday, but I got it working in the end -- so I may be slow to react for a while yet.
So, here's hoping for a productive week coming up!

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Thanks Ivan.
Maybe your guys should compare server settings with the vLHC guys(their server is working).
They are all working for the same "club".

You are at least responding. A few lines about the progress, every now and then,
is not too much to ask, is it.?
Otherwise people loose interest and go somewhere else ( with their processing capabilities).

Yes, I'm getting the same message.

It's all a bit strange. I tried playing around with the allowed disk space in boincmgr and an increase of 50 GB(!) brought the "required" amount down, another 50 GB and it was down to 2 GB needed, another 50 GB and it wanted 9 GB again...

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Hi Ivan,
It was a nice try, but the reported boinc space is misreported anyway.

No word of any progress. That is pretty sad.

I noticed, that the server allways sends 10 tasks at once. That happens, even though the event log says " no tasks sent".
The tasks do not show up in boinc, because of the message:

Message from server: CMS Simulation needs 9536.54MB more disk space. You currently have 0.21 MB available and it needs 9536.74 MB.

If i adjust the disk space available from 50.89GB to 50.88GB it says:

CMS Simulation needs 14.10MB more disk space. You currently have 9522.64 MB available and it needs 9536.74 MB.

This looks to me like a simple decimal place error.
We should get 1 task and get 10.
Disk space required is about 10* the expected size of 900 something MB.

Out of curiosity, what does the sched_request_boincai05.cern.ch_CMS-dev.xml file show as far as free disk space?

My sched_request_boincai05.cern.ch_CMS-dev.xml:

<host_info>
    ...
    <d_total>1999871410176.000000</d_total>
    <d_free>1583612952576.000000</d_free>
    ...
</host_info>

I'm curious if the client is misreporting the amount of free disk space to the project.

----- Rom

Out of curiosity, what does the sched_request_boincai05.cern.ch_CMS-dev.xml file show as far as free disk space?

My sched_request_boincai05.cern.ch_CMS-dev.xml:

<host_info>
    ...
    <d_total>1999871410176.000000</d_total>
    <d_free>1583612952576.000000</d_free>
    ...
</host_info>

I'm curious if the client is misreporting the amount of free disk space to the project.

----- Rom

Nevermind, I just received the error message too.

2/8/2016 9:23:26 PM | CMS-dev | Message from server: CMS Simulation needs 3007.27MB more disk space.  You currently have 6529.48 MB available and it needs 9536.74 MB.

----- Rom

Do not think so.

<d_free>422110560256.000000</d_free>

If i increase the boinc disk space from
50.91 to 50.92GB (needed to dial that in carefully)

The message goes from
need 8.23MB to
have 2.01MB.

So if i increase the disk space by 10MB the needed memory changes by 10MB until it comes to a critical point, where it flips over.

It is impossible to change the disk space for boinc to meet the required 9534.73MB.

It has to be some sort of decimal place shift somewhere.

So if i increase the disk space by 10MB the needed memory changes by 10MB until it comes to a critical point, where it flips over.

Available to BOINC 28,39GB

With disk_max_used_gb 40.616600 requesting work reply =
CMS-dev 09 Feb 13:25:39 Message from server: CMS Simulation needs 0.01MB more disk space. You currently have 9536.73 MB available and it needs 9536.74 MB.

With disk_max_used_gb 40.616700 requesting work reply =
CMS-dev 09 Feb 13:25:50 Message from server: CMS Simulation needs 9536.65MB more disk space. You currently have 0.09 MB available and it needs 9536.74 MB.

This sounds to me as the good old times:

Do you remember, what an 8 Bit integer is ?

Do you remember, if you add 1 to an 8 Bit integer value that is 32767 ?

For me it looks like an variable-Overflow ...

This sounds to me as the good old times:

Do you remember, what an 8 Bit integer is ?

Do you remember, if you add 1 to an 8 Bit integer value that is 32767 ?

For me it looks like an variable-Overflow ...

Good point, but I think you mean 16-bit, signed. :-)

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Good point, but I think you mean 16-bit, signed. :-)

Yeah, it is so far away but it seems you are right ;-)

I tried to get another job and got ten in my account, none on the PC and error message about space (CMS Simulation needs 8868.90MB more disk space. You currently have 667.84 MB available and it needs 9536.74 MB), there is over 100Gb free.

I removed the project as per Laurence's suggestion and the in progress tasks got marked as Abandoned.

I attached to the project again and requested work. Every time I request work I get another ten tasks added to the In Progress tally but nothing on the Ubuntu PC. I do not get any error messages about not having enough disk space. I now have 120 in progress according to my account.

So the good news is the warning message about space has gone, the bad news is that the limit of 20 tasks per day doesn't stop me being assigned much more than that. The really bad news is that I still cannot get any work downloaded to run.

I have one running!

I suspended all other projects and i got a cms task and it started.
I also left the boinc disk usage blank.


Did you guys change something on the server?

I have 2 (on separate PCs) :-)

The problem seems to have been related to the job templates used to create the tasks. These have been fixed and new tasks created.

Yeah, I got one !

I have one running!

I suspended all other projects and i got a cms task and it started.
I also left the boinc disk usage blank.


Did you guys change something on the server?

Yes, some templates apparently got corrupted -- Laurence fixed it and posted in News in "Zombie Tasks".

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Thanks, Ivan, i saw it.

Is there any way to get the vLHC guys to put on CMS tasks?

They have been asked over an over again, no answer.