mirror of https://github.com/BOINC/boinc.git
131 lines
4.0 KiB
C++
131 lines
4.0 KiB
C++
// This file is part of BOINC.
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// http://boinc.berkeley.edu
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// Copyright (C) 2011 University of California
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//
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// BOINC is free software; you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License
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// as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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//
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// BOINC is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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// See the GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with BOINC. If not, see <http://www.gnu.org/licenses/>.
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// BOINC API for OpenCL
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//
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// To get the cl_device_id and cl_platform_id for the OpenCL GPU
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// assigned to your application call this function:
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// int boinc_get_opencl_ids(int argc, char** argv, cl_device_id*, cl_platform_id*);
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//
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// To use this function, link your application with libboinc_opencl.a
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//
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#ifdef _WIN32
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#include "win_util.h"
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#endif
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#include <string>
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#include "error_numbers.h"
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#include "coproc.h"
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#include "str_replace.h"
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#include "boinc_api.h"
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#include "boinc_opencl.h"
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// returns an OpenCL error num or zero
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//
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int boinc_get_opencl_ids_aux(
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char *type, int device_num, cl_device_id* device, cl_platform_id* platform
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) {
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cl_platform_id platforms[MAX_OPENCL_PLATFORMS];
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cl_uint num_platforms, platform_index, num_devices;
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cl_device_id devices[MAX_COPROC_INSTANCES];
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char vendor[256]; // Device vendor (NVIDIA, ATI, AMD, etc.)
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int retval = 0;
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bool found = false;
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retval = clGetPlatformIDs(MAX_OPENCL_PLATFORMS, platforms, &num_platforms);
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if (num_platforms == 0) return CL_DEVICE_NOT_FOUND;
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if (retval != CL_SUCCESS) return retval;
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for (platform_index=0; platform_index<num_platforms; ++platform_index) {
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retval = clGetDeviceIDs(
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platforms[platform_index], CL_DEVICE_TYPE_GPU,
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MAX_COPROC_INSTANCES, devices, &num_devices
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);
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if (retval != CL_SUCCESS) continue;
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if (device_num >= (int)num_devices) continue;
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cl_device_id device_id = devices[device_num];
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retval = clGetDeviceInfo(
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device_id, CL_DEVICE_VENDOR, sizeof(vendor), vendor, NULL
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);
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if ((retval != CL_SUCCESS) || (strlen(vendor)==0)) continue;
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if ((strstr(vendor, "AMD")) ||
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(strstr(vendor, "Advanced Micro Devices, Inc."))
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) {
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strcpy(vendor, GPU_TYPE_ATI);
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}
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if (strcasestr(vendor, "nvidia")) {
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strcpy(vendor, GPU_TYPE_NVIDIA);
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}
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if (!strcmp(vendor, type)) {
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*device = device_id;
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*platform = platforms[platform_index];
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found = true;
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break;
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}
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}
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if (!found) return CL_DEVICE_NOT_FOUND;
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return 0;
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}
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// returns
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// - 0 if success
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// - ERR_FOPEN if init_data.xml missing
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// - ERR_XML_PARSE if can't parse init_data.xml
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// - ERR_NOT_FOUND if missing <gpu_type> or <gpu_device_num> fields
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// - an OpenCL error number if OpenCL error
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//
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int boinc_get_opencl_ids(cl_device_id* device, cl_platform_id* platform) {
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int retval;
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APP_INIT_DATA aid;
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int opencl_device_index;
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retval = boinc_parse_init_data_file();
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if (retval) return retval;
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boinc_get_init_data(aid);
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if (!strlen(aid.gpu_type)) {
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fprintf(stderr, "GPU type not found in %s\n", INIT_DATA_FILE);
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return ERR_NOT_FOUND;
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}
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opencl_device_index = aid.gpu_opencl_dev_index;
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if (opencl_device_index < 0) {
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// Older versions of init_data.xml don't have gpu_opencl_dev_index field
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opencl_device_index = aid.gpu_device_num;
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}
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if (opencl_device_index < 0) {
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fprintf(stderr, "GPU device # not found in %s\n", INIT_DATA_FILE);
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return ERR_NOT_FOUND;
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}
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retval = boinc_get_opencl_ids_aux(
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aid.gpu_type, opencl_device_index, device, platform
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);
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return retval;
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}
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