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Journeyman III

Program crashes on clEnqueueWriteImage for 2D image

NVIDIA compatible code crashes when writing to a 2D image from host to device

I have a 2D image object which has a new image written to it for every iteration of the kernel running.  The code correctly compiles and runs on NVIDIA hardware but on a Radeon 5770, crashes.  I'm using Windows 7 64-bit with the latest drivers and SDK.

I create the 2D image as follows (in a loop with iterator i):

t_dev_img = clCreateImage2D(context, CL_MEM_READ_ONLY | CL_MEM_ALLOC_HOST_PTR, &img_format, img_dim[0], img_dim[1], 0, NULL, &error);


This works successfully.  The image format I use is initiated as:

size_t img_origin[3] = {0, 0, 0};

size_t img_region[3] = {img_dim[0], img_dim[1], 1};

size_t img_row_pitch = img_dim[0] * sizeof(float);

cl_image_format img_format;

img_format.image_channel_order = CL_RGBA;

img_format.image_channel_data_type = CL_FLOAT;


The clEnqueueWriteImage is called as follows (in a loop with iterator i):

clEnqueueWriteImage(command_queue, t_dev_img, CL_FALSE, img_origin, img_region, img_row_pitch, 0, cbi->img, 0, NULL, &img_event);


When I then called clFinish, it crashes.


1 Reply
Adept I


Could you provide a testcase to reproduce the issue. Its easier to track down and solve the issue that way.