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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-users] xen tesla dom0
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 _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users
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