Forum > GPU crunching

Problem with running GPU tasks

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k6xt:

--- Quote from: Mike on 07 Jun 2012, 01:00:41 pm ---Not if you are using opti apps.
I´m still at 6.12.22. (modified)
Mike

--- End quote ---
Which I am, the latest KWSN installer. Thanks!

Fredericx51:
Yep, it's a great installer v40 ,  although I still have problems with  MB WU on  ATI GPUs,
HD5870s.  Two of them, probably also part of the problem and the INTEL DP67BG mobo,
2 x PCIe (2.0) x 16 and x 8, when both used in 2 x 8 mode.  PSU = 1000Watt.

During the first 20 seconds 1 CPU- core uses 100% then GPU makes first step in %,  after this ~ 20-30% .

One  CPU core, 2 threads are used to load and unload the GPUs .
As a last resort, upped the base 100MHz clock to 102MHz to get some more FLOPS from
the CPU, multiplier is locked at 34 max. also rased GPUcore frequency from 850 to 876 MHz..
Working quit stable, hope it stops the Max Time Exeeded, errrors. 900MHz. will probably do OK.

Just noticed at 57:47 minutes the running WU (610) is stopped with the message Time exceeded, or something like it.
This only happens to a VLAR ! Mostly on the 2nd GPU, device 1.

The AstroPulse OpenCL app. r.1316 works very fast, a none blanked WU is done in less then
an hour, a >90% blanked WU takes 2 till 3 hour GPU and  1 to 2 hours on  CPU .
(CPU = I7-2600; GPUs = 2x HD5870) Haven't tried rev1363 yet.

And the SSE3/AVX capable rev.331 (339?) for  CPU is very efficient,  too.
(Wonder if a newer version for MB work is to be expected)? 

Raistmer:

--- Quote from: Fredericx51 on 31 Jul 2012, 05:12:23 pm ---
Wonder if a newer version for MB work is to be expected? 

--- End quote ---
Yes, it's expected.

Fredericx51:

--- Quote from: Raistmer on 31 Jul 2012, 05:34:41 pm ---
--- Quote from: Fredericx51 on 31 Jul 2012, 05:12:23 pm ---
Wonder if a newer version for MB work is to be expected? 

--- End quote ---
Yes, it's expected.


--- End quote ---

Great , can't wait   ::)

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