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Old 06-20-10, 11:59 AM   #103
gio___
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Join Date: Nov 2009
Posts: 44
Default Re: 260GTX nvidia-drivers-190.42-r3 - powermizer issue

Quote:
Originally Posted by cjb View Post
Well, believe me, I'd be one rich little sucker tomorrow if I could get that number for real. Meantime, try changing 144 to 128 (the smallest setting it allows) for all three numbers, and see if you get a good result; thanks
# ./FDTD3d --dimx=128 --dimy=128 --dimz=128
./FDTD3d Starting...

Set-up, based upon target device GMEM size...
getTargetDeviceGlobalMemSize
cudaGetDeviceCount
cudaGetDeviceProperties
calloc host_output
malloc input
malloc coeff
generateRandomData

FDTD on 128 x 128 x 128 volume with symmetric filter radius 4 for 5 timesteps...

fdtdReference...
calloc intermediate
Host FDTD loop
t = 0
t = 1
t = 2
t = 3
t = 4

fdtdReference complete
calloc device_output
fdtdGPU...
cudaGetDeviceCount
cudaSetDevice (device 0)
cudaMalloc bufferOut
cudaMalloc bufferIn
set block size to 16x16
cudaMemcpy (HostToDevice) bufferIn
cudaMemcpy (HostToDevice) bufferOut
cudaMemcpyToSymbol (HostToDevice) stencil
cudaEventCreate
cudaEventCreate
GPU FDTD loop
t = 0 launch kernel
t = 1 launch kernel
t = 2 launch kernel
t = 3 launch kernel
t = 4 launch kernel

cudaThreadSynchronize
cudaMemcpy (DeviceToHost)
cudaEventElapsedTime

FDTD3d, Throughput = 90619.4714 MPoints/s, Time = 0.00002 s, Size = 1966080 Points, NumDevsUsed = 1, Blocksize = 256

cudaThreadExit
fdtdGPU complete

CompareData (tolerance 0.000100)...
Data error at point (4,4,4) 0.073752 instead of 10.781720

FAILED


!!! Error # 0 at line 48 , in file src/FDTD3d.cpp !!!

Exiting...
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