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45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
/*
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PLay with some misc work item built-in functions.
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https://www.khronos.org/registry/cl/sdk/2.1/docs/man/xhtml/workItemFunctions.html
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*/
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#include "common.h"
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#define NUM_FUNCTIONS (8)
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/* Play around with those parameters. */
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static size_t offset = 0;
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static size_t global = 1;
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static size_t local = 1;
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int main(void) {
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cl_mem buffer;
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cl_uint output[NUM_FUNCTIONS];
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Common common;
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/* Run kernel. */
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common_init_file(&common, "work_item_builtin.cl");
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buffer = clCreateBuffer(common.context, CL_MEM_WRITE_ONLY, sizeof(output), NULL, NULL);
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clSetKernelArg(common.kernel, 0, sizeof(cl_mem), &buffer);
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clEnqueueNDRangeKernel(common.command_queue, common.kernel, 1, &offset, &global, &local, 0, NULL, NULL);
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clFlush(common.command_queue);
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clFinish(common.command_queue);
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clEnqueueReadBuffer(common.command_queue, buffer, CL_TRUE, 0, sizeof(output), output, 0, NULL, NULL);
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/* Check the values. */
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puts("#work_item_builtin");
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printf("work_dim = %d\n", output[0]);
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printf("global_size = %d\n", output[1]);
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printf("global_id = %d\n", output[2]);
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printf("local_size = %d\n", output[3]);
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printf("local_id = %d\n", output[4]);
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printf("num_groups = %d\n", output[5]);
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printf("group_id = %d\n", output[6]);
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printf("global_offset = %d\n", output[7]);
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/* Cleanup. */
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clReleaseMemObject(buffer);
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common_deinit(&common);
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return EXIT_SUCCESS;
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}
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