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GPU crunching question
Devaster:
--- Quote from: popandbob on 14 Feb 2007, 09:22:54 pm ---spat out an error for both...
fft.exe (top in pic)
ftt2d.exe (bottom in pic) showed that then went to the same as fft.exe
BoB
--- End quote ---
maybe you have not a compatiblle hardware with rapidmind (shader model 3.0)...
it is trying a cpu backend and then you must have correctly set c++ compiler ....
citroja : i dont now what happend, on all machines i have tested is it ok ....
to all : please os version too thanx
(this algo is heavy tuned for rapidmind)
Simon:
Hi Devaster,
how is RapidMind working out for you? From what I saw when looking at the documentation, it seems pretty usable compared to having to write direct shader code.
Since I have no base for comparison, how would you say brookGPU, RapidMind, CUDA or other solutions you tried compare in performance, also how long does it takes you to code for them?
From what I found out, RapidMind seems the most useful because it can use both ATI X1K+ and nVidia 6x+ GPUs without modification; guess you'd need to compile different kernels with it still, or include more DLLs.
Do you know whether your code works on ATI GPUs right now? Should be possible, with RM.
<edit>Yes, it does. Amazingly, even on AGP ones; just tested on my ATI X800. Interesting, though RapidMind would only work on X1K+ ATIs. Very slow though, it needs PCI-Express to work correctly (AGP isn't all that bidirectional). Results attached - XP32, A64 3500+ (2.2 GHz) </edit>
Regards,
Simon.
[attachment deleted by admin]
Devaster:
i have tested only brookgpu and rapidmind - for cuda i have not a gpu and NDA ....
my implementation of fft in brook was very slow , but nagas (in GLSL - GPUFFTW) is comparable in speed with rapidmind ...
usability of rapidmind ... is cool ....
rapidmind gpu backend would running on all cards that have SM 3.0 and GLSL ...
cell backend on cells and cpu backend with classic c++ compiler ...
citroja:
--- Quote from: Devaster on 15 Feb 2007, 09:34:25 am ---
--- Quote from: popandbob on 14 Feb 2007, 09:22:54 pm ---spat out an error for both...
fft.exe (top in pic)
ftt2d.exe (bottom in pic) showed that then went to the same as fft.exe
BoB
--- End quote ---
maybe you have not a compatiblle hardware with rapidmind (shader model 3.0)...
it is trying a cpu backend and then you must have correctly set c++ compiler ....
citroja : i dont now what happend, on all machines i have tested is it ok ....
to all : please os version too thanx
(this algo is heavy tuned for rapidmind)
--- End quote ---
OS is Win XP Pro SP2
hmm do you need .NET 2.0?
I did run it with BIONC running and not running and got the same thing....maybe bad RAM? though it tests fine???
-citroja
popandbob:
My OS is the same as citroja
Card is an ATI HIS 9250 Excalibur
I do have .net 2.0
Bob
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