Hi :)
Yesterday i managed to optimize my 2 PC´s with Nvidia-Cards running Lunatics
to run up to 1/3 faster now by help in another thread here ( BIG THANKS ).
Today i want to optimize the other PC running a 2GB AMD/ATI R7 250x card.
The only tread i found here was about an RX480 but that one has 8 gb and mine 2gb,
i dont want to optimize ram-use but want to speed up the WU :)
My idea is that it most likely is fastest on doing 1 WU on the card with 1 CPU
as this ist fastest on the optimized Nvidias as well ( there was a diference of almost 5 minutes vs working with 2 WU on 1 card with each 1 CPU... ) .
There is an empty
mb_cmdline_win_x86_SSE2_OpenCL_ATi_HD5.txt

Anyone get a clue wich parameters would speed up that card / what to fill into this textfile ?

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Hi :)
Yesterday i managed to optimize my 2 PC´s with Nvidia-Cards running Lunatics
to run up to 1/3 faster now by help in another thread here ( BIG THANKS ).
Today i want to optimize the other PC running a 2GB AMD/ATI R7 250x card.
The only tread i found here was about an RX480 but that one has 8 gb and mine 2gb,
i dont want to optimize ram-use but want to speed up the WU :)
My idea is that it most likely is fastest on doing 1 WU on the card with 1 CPU
as this ist fastest on the optimized Nvidias as well ( there was a diference of almost 5 minutes vs working with 2 WU on 1 card with each 1 CPU... ) .
There is an empty
mb_cmdline_win_x86_SSE2_OpenCL_ATi_HD5.txt

Anyone get a clue wich parameters would speed up that card / what to fill into this textfile ?

From the ReadMe_MultiBeam_OpenCL_NV_SoG.txt file in the Lunatics /docs directory ...


Entry Level cards HD x3xx / x4xx R7 230/240/250
-spike_fft_thresh 2048 -tune 1 2 1 16

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Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

Thank you, Keith :)

wrote this in the textfile:
-spike_fft_thresh 2048 -tune 1 2 1 16 -period_iterations_num 10

Time per WU before: 20 min now: 16min 30sec

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Add -sbs 384 to the line.

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With each crime and every kindness we birth our future.

Reasonable -SBS setting for a low-end 2GB card.

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Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

Add -sbs 384 to the line.

Added :)
Thanks Mike :)

btw.: the R7 250x has same computing power as Nvidias GTX750TI
if GPUboss is right http://gpuboss.com/gpus/Radeon-R7-250X-vs-GeForce-GTX-750-Ti , and in gaming it has a slightly advantage to it - i would put it more to mid-range than low end. But maybe at crunching the GTX750TI is significant faster than it, dont know.

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if GPUboss is right http://gpuboss.com/gpus/Radeon-R7-250X-vs-GeForce-GTX-750-Ti , and in gaming it has a slightly advantage to it - i would put it more to mid-range than low end.

When it came out the GTX 750Ti was at the lower end of mid-range. There have been a few cards since then, and it is definitely low end now.

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Grant
Darwin NT

Hi, R7 250X is a simple rebranding name of the older HD7770 graphic card ;)

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Hi, R7 250X is a simple rebranding name of the older HD7770 graphic card ;)

It's more of a rebranded and overclocked 7720 with 384 shaders.
It looks like it continues to be used in the current generation as the the Radeon 530.

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