Posts by Oliver Bock

1) Message boards : Projects : News on Project Outages (Message 65014)
Posted 21 Oct 2015 by Oliver Bock
Post:
Einstein@Home is available again. We restarted at about 13:25:00 UTC.
2) Message boards : Questions and problems : Invalid tasks, how best to raise an alert. (Message 64910)
Posted 16 Oct 2015 by Oliver Bock
Post:

I was hoping for something like

http://<project_url>/results.php?hostid=<host_id>&offset=0&show_names=1&state=4&appid=0&format=xml[/url]

the &format=xml - is ignored (for results.php) but works for some php scripts.


What you describe sounds like a general use case which means you shouldn't design a rather convoluted workaround. What you should do instead is to contact the devs (boinc_dev mailing list) and ask for such a feature to be added to the BOINC web code or RPCs. I'm willing to support that and chime in on the discussion...

Oliver
3) Message boards : Questions and problems : Invalid tasks, how best to raise an alert. (Message 64909)
Posted 16 Oct 2015 by Oliver Bock
Post:

The project should keep an eye on the hosts working for it, and notify the owner of a host when it runs rampage. But then the only project I know who does this is Climateprediction.net. They'll make sure this host won't get work again and then its administrator will email the user telling that host XandY is returning only garbage and that it's exempt from getting work until its owner fixes the problem and mails back.

Apparently not all project administrators are that much involved in their own project, or interested enough to try and fix this,



Erm, all BOINC projects do the first part automatically. If a host has issues its daily quota is being reduced automatically by BOINC, preventing it from becoming a task black hole. But yes, we don't email each host owner.

This not a question of being sufficiently involved with one's project but a matter of (usually public sector) resources, in particular for projects with a large number of volunteers (hosts).


JM2C,
Oliver
4) Message boards : Questions and problems : GPU problem on Mac OS X with 7.0.65 (Message 51916)
Posted 6 Jan 2014 by Oliver Bock
Post:

The GT 120 (and my GTX 285) may never be supported for CUDA in 10.9.


FYI, this is a known issue of the CUDA 5.5 driver on Mavericks. It will be fixed by NVIDIA in a future update.

Best,
Oliver
5) Message boards : Questions and problems : GPU problem on Mac OS X with 7.0.65 (Message 50842)
Posted 14 Oct 2013 by Oliver Bock
Post:
Sure, it should therefore be considered as a regression in BOINC.

Oliver
6) Message boards : Questions and problems : GPU problem on Mac OS X with 7.0.65 (Message 50840)
Posted 14 Oct 2013 by Oliver Bock
Post:
NVIDIA GPUs require an updated CUDA driver to support CUDA on 10.9. OpenCL works out of the box as it's provided by Apple.
7) Message boards : Questions and problems : GPU problem on Mac OS X with 7.0.65 (Message 50828)
Posted 11 Oct 2013 by Oliver Bock
Post:
No, just checked CUDA 5.5.28 on OSX 10.9 GM. BOINC 7.2.18 doesn't yet recognise the GPUs via CUDA again. Still OpenCL only.

Charlie is right, it usually takes ages until NVIDIA gets their drivers updated for new OSX versions, despite the OSX development versions being available months before the actual release. We'll see whether they manage it this time, say, until Oct 22nd.

Oliver
8) Message boards : GPUs : Ivy Bridge + OpenCL + OS X 10.9 (Message 49729)
Posted 26 Jun 2013 by Oliver Bock
Post:
leading me to believe that OpenCL support is present by default in OS X 10,9. Perhaps that's because it's a development build?


OpenCL is included in OS X as a regular framework since 10.6.


I looked for OS X OpenCL drivers from/for Intel, but the closest I found was Linux (no specific distro, just "Linux").


There are no and there is no need for dedicated OpenCL drivers for OS X. As I said above, OpenCL is an OS X framework provided by Apple. This means Apple is the OpenCL platform vendor and it will support all devices Apple "wants" to support. Apple's OpenCL framework taps into the vendor-specific drivers that are also provided by Apple. If you can't get access to an OpenCL-enabled device on OS X you need to file a bug report with Apple and hope for the best.

I can't tell you anything about Intel GPUs on OS X since we don't have any. ATI and NVIDIA OpenCL support works fine in general. However, NVIDIA can sometimes be problematic since their overall OpenCL support has been dwindling and will most likely be discontinued rather sooner than later.


Cheers,
Oliver




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