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https://github.com/KhronosGroup/OpenCL-CTS.git
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Initial open source release of OpenCL 2.2 CTS.
This commit is contained in:
Kedar Patil
252
test_conformance/subgroups/test_workitem.cpp
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252
test_conformance/subgroups/test_workitem.cpp
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//
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// Copyright (c) 2017 The Khronos Group Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#include "procs.h"
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#include "../../test_common/harness/conversions.h"
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#include "../../test_common/harness/typeWrappers.h"
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struct get_test_data {
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cl_uint subGroupSize;
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cl_uint maxSubGroupSize;
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cl_uint numSubGroups;
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cl_uint enqNumSubGroups;
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cl_uint subGroupId;
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cl_uint subGroupLocalId;
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bool operator==(get_test_data x) {
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return subGroupSize == x.subGroupSize &&
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maxSubGroupSize == x.maxSubGroupSize &&
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numSubGroups == x.numSubGroups &&
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subGroupId == x.subGroupId &&
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subGroupLocalId == x.subGroupLocalId;
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}
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};
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static const char * get_test_source =
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"#pragma OPENCL EXTENSION cl_khr_subgroups : enable\n"
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"\n"
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"typedef struct {\n"
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" uint subGroupSize;\n"
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" uint maxSubGroupSize;\n"
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" uint numSubGroups;\n"
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" uint enqNumSubGroups;\n"
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" uint subGroupId;\n"
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" uint subGroupLocalId;\n"
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"} get_test_data;\n"
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"\n"
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"__kernel void get_test( __global get_test_data *outData )\n"
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"{\n"
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" int gid = get_global_id( 0 );\n"
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" outData[gid].subGroupSize = get_sub_group_size();\n"
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" outData[gid].maxSubGroupSize = get_max_sub_group_size();\n"
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" outData[gid].numSubGroups = get_num_sub_groups();\n"
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" outData[gid].enqNumSubGroups = get_enqueued_num_sub_groups();\n"
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" outData[gid].subGroupId = get_sub_group_id();\n"
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" outData[gid].subGroupLocalId = get_sub_group_local_id();\n"
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"}";
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static int
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check_group(const get_test_data *result, int nw, cl_uint ensg, int maxwgs)
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{
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int first = -1;
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int last = -1;
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int i, j;
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cl_uint hit[32];
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for (i=0; i<nw; ++i) {
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if (result[i].subGroupId == 0 && result[i].subGroupLocalId == 0)
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first = i;
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if (result[i].subGroupId == result[0].numSubGroups-1 && result[i].subGroupLocalId == 0)
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last = i;
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if (first != -1 && last != -1)
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break;
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}
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if (first == -1 || last == -1) {
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log_error("ERROR: expected sub group id's are missing\n");
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return -1;
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}
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// Check them
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if (result[first].subGroupSize == 0) {
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log_error("ERROR: get_sub_group_size() returned 0\n");
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return -1;
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}
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if (result[first].maxSubGroupSize == 0 || result[first].maxSubGroupSize > maxwgs) {
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log_error("ERROR: get_max_subgroup_size() returned incorrect result: %u\n", result[first].maxSubGroupSize);
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return -1;
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}
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if (result[first].subGroupSize > result[first].maxSubGroupSize) {
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log_error("ERROR: get_sub_group_size() > get_max_sub_group_size()\n");
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return -1;
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}
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if (result[last].subGroupSize > result[first].subGroupSize) {
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log_error("ERROR: last sub group larger than first sub group\n");
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return -1;
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}
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if (result[first].numSubGroups == 0 || result[first].numSubGroups > ensg) {
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log_error("ERROR: get_num_sub_groups() returned incorrect result: %u \n", result[first].numSubGroups);
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return -1;
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}
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memset(hit, 0, sizeof(hit));
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for (i=0; i<nw; ++i) {
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if (result[i].maxSubGroupSize != result[first].maxSubGroupSize ||
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result[i].numSubGroups != result[first].numSubGroups) {
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log_error("ERROR: unexpected variation in get_*_sub_group_*()\n");
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return -1;
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}
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if (result[i].subGroupId >= result[first].numSubGroups) {
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log_error("ERROR: get_sub_group_id() returned out of range value: %u\n", result[i].subGroupId);
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return -1;
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}
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if (result[i].enqNumSubGroups != ensg) {
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log_error("ERROR: get_enqueued_num_sub_groups() returned incorrect value: %u\n", result[i].enqNumSubGroups);
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return -1;
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}
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if (result[first].numSubGroups > 1) {
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if (result[i].subGroupId < result[first].numSubGroups-1) {
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if (result[i].subGroupSize != result[first].subGroupSize) {
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log_error("ERROR: unexpected variation in get_*_sub_group_*()\n");
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return -1;
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}
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if (result[i].subGroupLocalId >= result[first].subGroupSize) {
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log_error("ERROR: get_sub_group_local_id() returned out of bounds value: %u \n", result[i].subGroupLocalId);
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return -1;
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}
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} else {
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if (result[i].subGroupSize != result[last].subGroupSize) {
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log_error("ERROR: unexpected variation in get_*_sub_group_*()\n");
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return -1;
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}
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if (result[i].subGroupLocalId >= result[last].subGroupSize) {
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log_error("ERROR: get_sub_group_local_id() returned out of bounds value: %u \n", result[i].subGroupLocalId);
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return -1;
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}
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}
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} else {
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if (result[i].subGroupSize != result[first].subGroupSize) {
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log_error("ERROR: unexpected variation in get_*_sub_group_*()\n");
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return -1;
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}
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if (result[i].subGroupLocalId >= result[first].subGroupSize) {
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log_error("ERROR: get_sub_group_local_id() returned out of bounds value: %u \n", result[i].subGroupLocalId);
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return -1;
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}
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}
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j = (result[first].subGroupSize + 31)/32 * result[i].subGroupId + (result[i].subGroupLocalId >> 5);
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if (j < sizeof(hit)/4) {
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cl_uint b = 1U << (result[i].subGroupLocalId & 0x1fU);
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if ((hit[j] & b) != 0) {
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log_error("ERROR: get_sub_group_local_id() repeated a result in the same sub group\n");
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return -1;
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}
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hit[j] |= b;
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}
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}
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return 0;
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}
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int
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test_work_item_functions(cl_device_id device, cl_context context, cl_command_queue queue, int num_elements)
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{
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static const size_t lsize = 200;
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int error;
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int i, j, k, q, r, nw;
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int maxwgs;
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cl_uint ensg;
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size_t global;
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size_t local;
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get_test_data result[lsize*6];
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clProgramWrapper program;
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clKernelWrapper kernel;
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clMemWrapper out;
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error = create_single_kernel_helper_with_build_options(context, &program, &kernel, 1, &get_test_source, "get_test", "-cl-std=CL2.0");
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if (error != 0)
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return error;
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error = get_max_allowed_work_group_size(context, kernel, &local, NULL);
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if (error != 0)
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return error;
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maxwgs = (int)local;
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// Limit it a bit so we have muliple work groups
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// Ideally this will still be large enough to give us multiple subgroups
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if (local > lsize)
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local = lsize;
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// Create our buffer
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out = clCreateBuffer(context, CL_MEM_READ_WRITE, sizeof(result), NULL, &error);
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test_error(error, "clCreateBuffer failed");
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// Set argument
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error = clSetKernelArg(kernel, 0, sizeof(out), &out);
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test_error(error, "clSetKernelArg failed");
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global = local * 5;
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// Make sure we have a flexible range
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global += 3 * local / 4;
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// Collect the data
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memset((void *)&result, 0xf0, sizeof(result));
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error = clEnqueueWriteBuffer(queue, out, CL_FALSE, 0, sizeof(result), (void *)&result, 0, NULL, NULL);
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test_error(error, "clEnqueueWriteBuffer failed");
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error = clEnqueueNDRangeKernel(queue, kernel, 1, NULL, &global, &local, 0, NULL, NULL);
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test_error(error, "clEnqueueNDRangeKernel failed");
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error = clEnqueueReadBuffer(queue, out, CL_FALSE, 0, sizeof(result), (void *)&result, 0, NULL, NULL);
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test_error(error, "clEnqueueReadBuffer failed");
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error = clFinish(queue);
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test_error(error, "clFinish failed");
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nw = (int)local;
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ensg = result[0].enqNumSubGroups;
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// Check the first group
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error = check_group(result, nw, ensg, maxwgs);
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if (error)
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return error;
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q = (int)global / nw;
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r = (int)global % nw;
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// Check the remaining work groups including the last if it is the same size
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for (k=1; k<q; ++k) {
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for (j=0; j<nw; ++j) {
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i = k*nw + j;
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if (!(result[i] == result[i-nw])) {
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log_error("ERROR: sub group mapping is not identical for all work groups\n");
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return -1;
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}
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}
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}
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// Check the last group if it wasn't the same size
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if (r != 0) {
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error = check_group(result + q*nw, r, ensg, maxwgs);
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if (error)
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return error;
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}
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return 0;
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}
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