hi all,
I have a problem executing cuda program in a dom0 kernel.
I compiled the nviodia driver following istruction at this link:
http://www.nvnews.net/vbulletin/showthread.php?t=122900
driver seem to work properly and x server starts and work,
but when i run a cuda program seems that no data whas written or read into/from
gpu memory
i used the following program from cuda sdk:
bandwidtTest, deviceQuery, whith the following results:
Running on......
device 0:GeForce GTX 280
Quick Mode
Host to Device Bandwidth for Pageable memory
.
Transfer Size (Bytes) Bandwidth(MB/s)
33554432 3679.3
Quick Mode
Device to Host Bandwidth for Pageable memory
.
Transfer Size (Bytes) Bandwidth(MB/s)
33554432 3662.9
Quick Mode
Device to Device Bandwidth
.
Transfer Size (Bytes) Bandwidth(MB/s)
33554432 6642.3
&&&& Test PASSED
and:
Device 0: "GeForce GTX 280"
Major revision number: 1
Minor revision number: 3
Total amount of global memory: 1073414144 bytes
Number of multiprocessors: 30
Number of cores: 240
Total amount of constant memory: 65536 bytes
Total amount of shared memory per block: 16384 bytes
Total number of registers available per block: 16384
Warp size: 32
Maximum number of threads per block: 512
Maximum sizes of each dimension of a block: 512 x 512 x 64
Maximum sizes of each dimension of a grid: 65535 x 65535 x 1
Maximum memory pitch: 262144 bytes
Texture alignment: 256 bytes
Clock rate: 1.30 GHz
Concurrent copy and execution: Yes
Test PASSED
but when i tried dct8x8 and Montecarlo this is the results:
Using device 0: GeForce GTX 280
CUDA sample DCT/IDCT implementation
==================================Loading test image: barbara.bmp... [512 x
512]... Success
Running Gold 1 (CPU) version... Success
Running Gold 2 (CPU) version... Success
Running CUDA 1 (GPU) version... Success
Running CUDA 2 (GPU) version... Success
Dumping result to barbara_gold1.bmp... Success
Dumping result to barbara_gold2.bmp... Success
Dumping result to barbara_cuda1.bmp... Success
Dumping result to barbara_cuda2.bmp... Success
Processing time (CUDA 1) : 17.022999 ms
Processing time (CUDA 2) : 16.991602 ms
PSNR Original <---> CPU(Gold 1) : 32.777073
PSNR Original <---> CPU(Gold 2) : 32.777050
PSNR Original <---> GPU(CUDA 1) : inf
PSNR Original <---> GPU(CUDA 2) : inf
PSNR CPU(Gold 1) <---> GPU(CUDA 1) : 32.777073
PSNR CPU(Gold 2) <---> GPU(CUDA 2) : 32.777050
TEST FAILED! (CPU and GPU results differ too much)
e:
Using device 0: GeForce GTX 280
Generating input data...
Allocating memory...
Generating normally distributed samples...
Running GPU Monte Carlo...
Options : 256
Simulation paths: 262144
Time (ms.) : 34.305000
GPU options per sec.: 7462.468961
GPU Monte Carlo vs. Black-Scholes statistics
L1 norm : 1.000000E+00
Average reserve: 0.000000
TEST FAILED
CPU Monte Carlo vs. Black-Scholes statistics...
L1 norm: 2.970427E-06
Average reserve: 0.000000
CPU vs. GPU Monte Carlo statistics...
L1 norm: 1.000000E+00
Shutting down...
did anyone have experience of that problem?
thanks,
Omar
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