[Rtk-users] RTK and CUDA

[MORY, CYRIL]

Hi,

I have a few questions regarding CUDA in RTK :

-          In rtkCudaForwardProjectImageFilter.cu, which I'm using as a starting point, suppose I want to set to zero all elements of the 3D array allocated by cudaMalloc3DArray(). Do you know of a Cuda function that would do it ? I've been unable to make it using CudaMemset3D(), which seems to work only when memory has been allocated with CudaMalloc3D(), not with CudaMalloc3DArray().

-          I get a "CUDA ERROR : Unknown error" in the execution of the line "cudaBindTexture (0, tex_matrix, dev_matrix, 12*sizeof(float) );" in my program. I really do not have a clue why. I'd like to use the cuda debugger to understand what I'm doing wrong. Is it possible via CMake ? How should I modify the CMake files to do so ?

Regards,

==========================================
Cyril Mory
PhD student at Philips Medisys and CREATIS

Groupement Hospitalier Est
Hôpital Cardiologique Louis Pradel
Laboratoire CREATIS - Bât. B13
CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1
28, Avenue du Doyen LEPINE
69677 Bron cedex FRANCE

Office : +33 4 72 35 74 12
Cell : +33 6 69 46 73 79


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