HOWTO donate CPU to the fight against the Corona-virus
Alexander at leidinger.net
Sat Mar 21 11:08:08 UTC 2020
Quoting Stefan Ehmann <shoesoft at gmx.net> (from Sat, 21 Mar 2020
> On Thursday, March 19, 2020 8:57:45 AM CET Alexander Leidinger via freebsd-
> stable wrote:
>> if someone wants to donate some FreeBSD based CPU resources to the
>> fight against the Corona-virus, here is a quick HOWTO in terms of
>> installing the Folding at Home client on FreeBSD:
> Unfortunately, (using a CPU slot for the same work unit) TPF is 2-3 times
> slower than on Ubuntu for me. Much of the speed difference seems to
> be related
> to libOpenCL. If remove libOpenCL on Ubuntu, it's still 20-30% faster than on
The pure CPU based code should be the same. Someone would have to
trace / reverse engineer what is going on.
> Don't know how stable the TPF numbers are, so numbers may be bogus.
> Will a CPU slot also use the GPU with libOpenCL or is it just using better
> optimized code? I tried to install libOpenCL but all I get is:
No idea. Just an assumption: either full CPU or full GPU.
> OpenCL: Not detected: clGetPlatformIDs() returned -1001
Depending on what clGetPlatformIDs is doing and if it is not
using/requesting some GPU support, it may be worth to check the code
of it so see if we can improve something.
> Since there's no CUDA support for FreeBSD, I guess there is no point
> in trying
> getting GPU slots to work.
I assume the same. First step would be to get CUDA support in FreeBSD.
I think I remember somewhere on the X11 mailinglist someone told that
he got some NVidia GPU compute part working... not really sure about
that part. It would help to get a big player to request it from
NVidia. As Netflix seems to go the "encode videos on CPU" (assumption
based upon their Intel av1 codec support/benchmarks) way, and other
players in the video / graphics business more oriented towards linux,
I do not have much hope in this regard ATM.
http://www.Leidinger.net Alexander at Leidinger.net: PGP 0x8F31830F9F2772BF
http://www.FreeBSD.org netchild at FreeBSD.org : PGP 0x8F31830F9F2772BF
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