Forum > Windows
GPU crunching question
Arnulf:
I ran the client on my computer with dual Opterons and a nVidia 7800GS card ( AGP ).
Processor usage - one core at 60 to 70%.
Attached stderror.txt
A.
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Devaster:
for now i am trying in cooperation with rapidmind guys to maximally parallelize the fft code ...
for now whole analyze is running in one cycle in serial my idea is this (thanx to vyper for basic idea ;)) :
separate the whole analyze process to three stages:
1. calculate part ffts on whole datas at one time
2. calculate whole powerspectrum at one time
3. check for the spikes/Gaussians/pulses at one time
usage of the rapidmind can parallelize code efficiently ...
1. trying encapsulate the walkthrough code over data array into shaders code then may be in separate shader unit run many ffts side by side ...
Vyper:
Heyy i got a thanks.. Me is soo ;D now ...
Good luck dude.. Keep in touch with us, and let us know further hicupps so you can get another angle to solve issues..
Kind Regards Vyper
Devaster:
i have found in my code a big error : seti uses fftlen as is but raoidmind uses fftlen as 2^fftlen so it calculates .... :o ::) ::) :-[
Vyper:
debug...debug...debug... and yet again debug :)
When tweaking is done the appropriate result will show ..
I remember in the good old days when i programmed O/S friendly assembly with library calls on the Amiga, i was so disturbed with that the library routine to plot pixels was soo slow, then i discovered that with a simple library patch i managed to increase the performance with 1100 - 1200 % when i wrote the pixel routine in pure assembly instead, and boy have i used the trace register function alot in these days.. 15% of time is writing the code 85% of it is pure tracing too see that the program does what i've intended in my brain :P ..
Boy how fun the code could be sometimes but work pays off and one day (voila) the code does what it was intended to do .. Many nights!! Late hours and alot of caffeinepills and just when the code is done u notice that the clock is about 05.00 at night and the school started at 08.00 .
Why the hell sleep :D , keep it up devie..
I had to write some nostalgia here to trigger you further ;D
Kind Regads Vyper
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