CUDA 2.0 beta
this is matlab 2008a Szeta test on desktop and laptop
Hi,
For those who are interested: External Media
First machine:
Desktop Quad Core with 8800 GTX
windows performance factor 5.5 Vista-64 sp 1
4G RAM
which Szeta
C:\Program Files\MATLAB\R2008a\toolbox\Matlab_CUDA_1.1\Szeta.m
tic; FS_2Dturb(128,1,1,1); toc;
CFL =
0.1017
Gsqav =
1.1995
Elapsed time is 3.448124 seconds.
tic; FS_vortex; toc;
ans =
512
Elapsed time is 69.536027 seconds.
which Szeta
C:\Program Files\MATLAB\R2008a\toolbox\Matlab_CUDA_1.1\Szeta.mexw64
tic; FS_2Dturb(128,1,1,1); toc;
CFL =
0.1017
Gsqav =
1.1995
Elapsed time is 3.706450 seconds.
tic; FS_vortex; toc;
ans =
512
Elapsed time is 19.165827 seconds.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Second machine:
HP Pavilion dv9000, 4G RAM
Windows performance factor 4.8 card 8600M GS
(pain to install nvcuda.dll !!!) External Media
which Szeta
C:\Program Files\MATLAB\R2008a\toolbox\CUDA\Szeta\Szeta.m
tic; FS_2Dturb(128,1,1,1); toc;
CFL =
0.1017
Gsqav =
1.1995
Elapsed time is 4.012627 seconds.
tic; FS_vortex; toc;
ans =
512
Elapsed time is 75.294268 seconds.
which Szeta
C:\Program Files\MATLAB\R2008a\toolbox\CUDA\Szeta\Szeta.mexw64
tic; FS_2Dturb(128,1,1,1); toc;
CFL =
0.1017
Gsqav =
1.1995
Elapsed time is 10.062418 seconds.
tic; FS_vortex; toc;
ans =
512
Elapsed time is 49.365398 seconds.
FACTS:
given the dual precision on native matlab - not a great performance gain using GPU, which runs with single precision I must say…
probably Szeta is not the best example External Media
Regards,
revera
