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#include <string.h>
#include "utests/utest_helper.hpp"
#include <sys/time.h>
double benchmark_read_image(void)
{
struct timeval start,stop;
const size_t x_count = 4;
const size_t y_count = 4;
const size_t w = 1024;
const size_t h = 1024;
const size_t sz = 4 * x_count * y_count * w * h;
cl_image_format format;
cl_image_desc desc;
memset(&desc, 0x0, sizeof(cl_image_desc));
memset(&format, 0x0, sizeof(cl_image_format));
// Setup kernel and images
OCL_CREATE_KERNEL("compiler_read_image");
buf_data[0] = (uint32_t*) malloc(sizeof(float) * sz);
buf_data[1] = (uint32_t*) malloc(sizeof(float) * sz);
for (uint32_t i = 0; i < sz; ++i) {
((float*)buf_data[0])[i] = rand();
((float*)buf_data[1])[i] = rand();
}
format.image_channel_order = CL_RGBA;
format.image_channel_data_type = CL_FLOAT;
desc.image_type = CL_MEM_OBJECT_IMAGE2D;
desc.image_width = w * x_count;
desc.image_height = h * y_count;
desc.image_row_pitch = desc.image_width * sizeof(float) * 4;
OCL_CREATE_IMAGE(buf[0], CL_MEM_COPY_HOST_PTR, &format, &desc, buf_data[0]);
OCL_CREATE_IMAGE(buf[1], CL_MEM_COPY_HOST_PTR, &format, &desc, buf_data[1]);
OCL_CREATE_BUFFER(buf[2], 0, sz * sizeof(float), NULL);
free(buf_data[0]);
buf_data[0] = NULL;
free(buf_data[1]);
buf_data[1] = NULL;
// Run the kernel
OCL_SET_ARG(0, sizeof(cl_mem), &buf[0]);
OCL_SET_ARG(1, sizeof(cl_mem), &buf[1]);
OCL_SET_ARG(2, sizeof(cl_mem), &buf[2]);
globals[0] = w;
globals[1] = h;
locals[0] = 16;
locals[1] = 16;
gettimeofday(&start,0);
for (size_t i=0; i<100; i++) {
OCL_NDRANGE(2);
}
OCL_FINISH();
gettimeofday(&stop,0);
clReleaseMemObject(buf[0]);
free(buf_data[0]);
buf_data[0] = NULL;
double elapsed = time_subtract(&stop, &start, 0);
return BANDWIDTH(sz * sizeof(float) * 2 * 100, elapsed);
}
MAKE_BENCHMARK_FROM_FUNCTION(benchmark_read_image);
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