ATI GPU
1 Nov 2010 14:41:34 UTC
Topic 195425
(moderation:
I´m new to GPU crunching so please forgive me if this was asked before.
Is it possible to use my HD 5770 for crunching einstein ?
Found nothing on the preferences page, but i see one of my wingman uses a 4770.
How can this be done ?
ATI GPU
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The project only officially supports NVidia (CUDA) GPUs - and as you can see from the applications page, only the ABP (Arecibo Binary Pulsar) sub-project has even that support.
It depends where you're seeing that wingman's 4770. If it's in the host description, that's no surprise. If there's a supported ATI GPU physically present, then BOINC will report it - but Einstein won't be using it.
But if you saw a reference in the stderr_out of a reported task, then that would be evidence of somebody trying something interesting.
Either way, a link should clear it up for definite.
Hi, only nvidia
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Hi,
only nvidia CUDA-cards are used by Einstein@home. Their is no ATI support yet.
You can used the GPU for other projects, though.
Yes, i thought so also, but
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Yes, i thought so also, but if i´m not stupid stderr_out.txt show setup graphic process.
http://einsteinathome.org/workunit/84929231
You can also see the unit shows 56.xxx seconds for GPU mine is empty.
Hi Mike, it definitely ran
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Hi Mike,
it definitely ran on the CPU:
2010-10-30 15:34:42.2137 (2808) [normal]: Start of BOINC application 'projects/einstein.phys.uwm.edu/einstein_S5GC1_3.02_windows_intelx86__S5GCESSE2.exe'.
And it says "runtime", not "GPU runtime". And "setup graphics..." just means the fancy screensaver graphics, which is OpenGL? and works on ATI too.
(AFAIK)
Michael
Team Linux Users Everywhere
Thanks for the
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Thanks for the answers.
I´m still a little confused.
What does the run time section means besides the CPU time.
Mine is allways empty.
How can it be that a CPU with almost half the flops finnishes a WU faster than my monster ?
RE: What does the run time
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That's probably because of your BOINC version (6.1.0). I believe the elapsed time column was introduced later.
Gruß,
Gundolf
Computer sind nicht alles im Leben. (Kleiner Scherz)
RE: How can it be that a
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I suspect this is also a side effect of using an outdated BOINC client version. Because your BOINC version doesn't have the ability to work with so called plan classses, the server takes a conservative guess and distributes the maximum compatibility version of the GC1 app. If you were using a more modern version, it would request the SSE2 optimized version of the app from the server, and your rig would be able to crunch faster with it.
CU
HB
RE: How can it be that a
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It looks like your CPU isn't running at full speed. The Boinc science applications run with low priority so other applications can get the CPU(s) whenever they need, because they run with higher priority. You might have "Cool'n'Quiet" enabled to save some energy. This will make the CPU run with lower speed even when Boinc is running, because of the low priority.
There usually is a switch in the Bios to enable/disable "Cool'n'Quiet".
hth
Michael
You are right. :) Didn't have
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You are right. :)
Didn't have a close look at the results.
Michael
RE: What does the run time
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The "Run time" is the Wall-clock time elapsed while computing the task (depend on other programs "eating" CPU time).
The "CPU time" is the really consumed CPU-computing time by the task (do not depend on other processes running).
So "Run time" > "CPU time" as always there are many other processes running - "Idle" Windows Vista consumes ~5-10% CPU time on my Athlon 64 3500+
If you e.g. play for hours 3D/Flash game which consumes (loads) the CPU 50%
the "CPU time" for the task will be (as usual for your computer/CPU/Einstein@Home app) ~25,000 sec but the "Run time" will be ~50,000 sec
(as the Einstein@Home task can only use the remaining 45-50% of free CPU time).
You need to install the current BOINC to see the "Run time".
http://boinc.berkeley.edu/download.php
And as Bikeman noticed:
the app used on my AMD Athlon(tm) 64 Processor 3500+ with BOINC version 6.10.58 is Global Correlations S5 search #1 v3.02 (S5GCESSE2):
http://einsteinathome.org/host/3621999/tasks&offset=0&show_names=0&state=3
and on your (newer) AMD Phenom(tm) II X6 1090T Processor with BOINC 6.1.0 (many versions older) is Global Correlations S5 search #1 v3.02:
http://einsteinathome.org/host/61981/tasks&offset=0&show_names=0&state=3
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