Posts by Oliver Bock

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11) Message boards : Problems and Bug Reports : [New release] BRP app v1.22 feedback thread (Message 111909)
Posted 439 days ago by Oliver Bock
It's not. The reason isn't a flaw in our runtime estimation (stored in the work unit definition) but BOINC's new automatic runtime estimation system (a.k.a. new credit system) we're also testing here on albert...

Oliver
12) Message boards : Problems and Bug Reports : [New release] BRP app v1.22 feedback thread (Message 111906)
Posted 440 days ago by Oliver Bock
Since v1.21/v1.22 update, I have got a lot of validation errors.
Please check my stats/failed units, maybe that will help you to find a bug.
My system is BOINC 7.18 + Mac OS X 10.7.3 + AMD HD6750M 1GB


Same as for "[AF>Le_Pommier] McRoger": no working OS X OpenCL app for the time being...

Oliver
13) Message boards : Problems and Bug Reports : [New release] BRP app v1.22 feedback thread (Message 111905)
Posted 440 days ago by Oliver Bock
Same for me, my results

Boinc Manager 7.0.12
OS X Lion 10.7.3
ATI Radeon 5770 (Apple) 1 Gb


Besides there is this error in the log

[19:14:19][1216][INFO ] Checkpoint file unavailable: status.cpt (No such file or directory).

Might it explain why calculation time is so huge compared to other platforms ?


1) Please read my intro post of this thread. The Mac version is known to produce invalid results. We already disabled it.
2) Your GPU is simply not that efficient that's why it takes so long. It's not about the platform but the GPU.
3) The message you quote is an "INFO" message, so no, it's not the reason. It's normal when a fresh dataset is being analyzed for the first time - there can't be any checkpoint then.

HTH,
Oliver
14) Message boards : Problems and Bug Reports : [New release] BRP app v1.22 feedback thread (Message 111904)
Posted 440 days ago by Oliver Bock
Hi Jord,

So, pretty please, can the fpops estimate be adjusted enough that they don't come in thinking to take 200+ hours?


I'll forward this to Bernd but he's pretty overwhelmed with more important topics right now and the BOINC devs are of little help analyzing this right now. Please bear with us.

Cheers,
Oliver
15) Message boards : Problems and Bug Reports : [New release] BRP app v1.22 feedback thread (Message 111895)
Posted 443 days ago by Oliver Bock

Could running vbox be a problem?


Don't know but could be if vbox acquires the GPU somehow...

Oliver
16) Message boards : Problems and Bug Reports : [New release] BRP app v1.22 feedback thread (Message 111893)
Posted 444 days ago by Oliver Bock

The scheduler requests new jobs, and 3 seconds later it starts S6LV1.


Well, S6LV1 tasks are not the same as BRP tasks. S6LV1 tasks re-use data already present on your host while BRP data is only used once, for a single WU. Looking at the error output of the failed S6LV1 task should tell us what happened.

Please open another thread for that problem if it persists. This thread is meant to discuss BRP v1.22 only.

Cheers,
Oliver
17) Message boards : Problems and Bug Reports : [New release] BRP app v1.22 feedback thread (Message 111890)
Posted 445 days ago by Oliver Bock
No X windows here, I'm running win7


Oops, sorry :-) When you start the BOINC client it'll list all GPUs in the event log (advanced view). For AMD/ATI devices it might talk about CAL and OpenCL - we're interested only in the latter. You should find the list of GPUs more or less at the top of the event log, right before the registered projects are mentioned.

Oliver
18) Message boards : Problems and Bug Reports : [New release] BRP app v1.22 feedback thread (Message 111888)
Posted 445 days ago by Oliver Bock
Are there actually tasks available? I'm not receiving anything for my GPU.


Yes there are and your config looks fine so far. Please have a look at the BOINC event log: did BOINC recognize your AMD GPU as OpenCL device? According to our logs it doesn't seem to be the case. You might need to reinstall the Catalyst driver. Also, remember to start the X server and make sure that BOINC can access the X display. If "clinfo" exists on your system you may use it to verify that your GPU is properly enumerated by OpenCL.

Cheers,
Oliver
19) Message boards : Problems and Bug Reports : [New release] BRP app v1.22 feedback thread (Message 111882)
Posted 446 days ago by Oliver Bock
should we dump Wu's still using the 1.21 app? I've noticed a few inconclusives and errors on that app. not seeing any problems from other GPU projects


Depends on what errors you saw. If they are memory-related you probably want to reset your project. You'll be resent the same tasks but they'll be crunched with the latest app version which required less memory (OpenCL only).

Cheers,
Oliver
20) Message boards : Problems and Bug Reports : [New release] BRP app v1.22 feedback thread (Message 111881)
Posted 446 days ago by Oliver Bock
Just to be sure: By "latest Catalyst driver (>=12.1)" you mean "AMD Catalystâ„¢ 11.11 - Revision number 12.1" ?

I can't find any Catalyst 12.1 for Linux on the AMD site.


That's just because of AMD's sloppy web editing. The one you found is the 12.1 driver.

Oliver


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This material is based upon work supported by the National Science Foundation (NSF) under Grant PHY-0555655 and by the Max Planck Gesellschaft (MPG). Any opinions, findings, and conclusions or recommendations expressed in this material are those of the investigators and do not necessarily reflect the views of the NSF or the MPG.

Copyright © 2013 Bruce Allen for the LIGO Scientific Collaboration