Sergey Sharybin
e0cc3e9809
Mainly useful for debugging. Previously, when AVX2 was disabled in the debug panel but BVH layout was kept on BVH8 nothing was rendered. Needed to make it so supported BVH layout mask for devices is queried in "dynamic", so it is possible to use DebugFlags there.
249 lines
8.4 KiB
C++
249 lines
8.4 KiB
C++
/*
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* Copyright 2011-2013 Blender Foundation
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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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#ifdef WITH_OPENCL
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#include "device/opencl/opencl.h"
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#include "device/device_intern.h"
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#include "util/util_foreach.h"
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#include "util/util_logging.h"
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#include "util/util_set.h"
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#include "util/util_string.h"
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CCL_NAMESPACE_BEGIN
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Device *device_opencl_create(DeviceInfo& info, Stats &stats, bool background)
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{
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vector<OpenCLPlatformDevice> usable_devices;
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OpenCLInfo::get_usable_devices(&usable_devices);
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assert(info.num < usable_devices.size());
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const OpenCLPlatformDevice& platform_device = usable_devices[info.num];
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const string& platform_name = platform_device.platform_name;
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const cl_device_type device_type = platform_device.device_type;
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if(OpenCLInfo::kernel_use_split(platform_name, device_type)) {
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VLOG(1) << "Using split kernel.";
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return opencl_create_split_device(info, stats, background);
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} else {
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VLOG(1) << "Using mega kernel.";
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return opencl_create_mega_device(info, stats, background);
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}
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}
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bool device_opencl_init(void)
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{
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static bool initialized = false;
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static bool result = false;
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if(initialized)
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return result;
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initialized = true;
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if(OpenCLInfo::device_type() != 0) {
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int clew_result = clewInit();
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if(clew_result == CLEW_SUCCESS) {
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VLOG(1) << "CLEW initialization succeeded.";
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result = true;
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}
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else {
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VLOG(1) << "CLEW initialization failed: "
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<< ((clew_result == CLEW_ERROR_ATEXIT_FAILED)
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? "Error setting up atexit() handler"
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: "Error opening the library");
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}
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}
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else {
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VLOG(1) << "Skip initializing CLEW, platform is force disabled.";
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result = false;
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}
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return result;
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}
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static cl_int device_opencl_get_num_platforms_safe(cl_uint *num_platforms)
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{
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#ifdef _WIN32
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__try {
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return clGetPlatformIDs(0, NULL, num_platforms);
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}
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__except(EXCEPTION_EXECUTE_HANDLER) {
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/* Ignore crashes inside the OpenCL driver and hope we can
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* survive even with corrupted OpenCL installs. */
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fprintf(stderr, "Cycles OpenCL: driver crashed, continuing without OpenCL.\n");
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}
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*num_platforms = 0;
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return CL_DEVICE_NOT_FOUND;
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#else
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return clGetPlatformIDs(0, NULL, num_platforms);
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#endif
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}
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void device_opencl_info(vector<DeviceInfo>& devices)
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{
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cl_uint num_platforms = 0;
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device_opencl_get_num_platforms_safe(&num_platforms);
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if(num_platforms == 0) {
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return;
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}
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vector<OpenCLPlatformDevice> usable_devices;
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OpenCLInfo::get_usable_devices(&usable_devices);
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/* Devices are numbered consecutively across platforms. */
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int num_devices = 0;
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set<string> unique_ids;
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foreach(OpenCLPlatformDevice& platform_device, usable_devices) {
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/* Compute unique ID for persistent user preferences. */
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const string& platform_name = platform_device.platform_name;
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const cl_device_type device_type = platform_device.device_type;
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const string& device_name = platform_device.device_name;
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string hardware_id = platform_device.hardware_id;
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if(hardware_id == "") {
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hardware_id = string_printf("ID_%d", num_devices);
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}
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string id = string("OPENCL_") + platform_name + "_" + device_name + "_" + hardware_id;
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/* Hardware ID might not be unique, add device number in that case. */
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if(unique_ids.find(id) != unique_ids.end()) {
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id += string_printf("_ID_%d", num_devices);
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}
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unique_ids.insert(id);
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/* Create DeviceInfo. */
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DeviceInfo info;
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info.type = DEVICE_OPENCL;
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info.description = string_remove_trademark(string(device_name));
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info.num = num_devices;
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/* We don't know if it's used for display, but assume it is. */
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info.display_device = true;
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info.advanced_shading = OpenCLInfo::kernel_use_advanced_shading(platform_name);
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info.use_split_kernel = OpenCLInfo::kernel_use_split(platform_name,
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device_type);
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info.has_volume_decoupled = false;
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info.id = id;
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/* Check OpenCL extensions */
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info.has_half_images = platform_device.device_extensions.find("cl_khr_fp16") != string::npos;
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devices.push_back(info);
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num_devices++;
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}
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}
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string device_opencl_capabilities(void)
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{
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if(OpenCLInfo::device_type() == 0) {
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return "All OpenCL devices are forced to be OFF";
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}
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string result = "";
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string error_msg = ""; /* Only used by opencl_assert(), but in the future
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* it could also be nicely reported to the console.
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*/
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cl_uint num_platforms = 0;
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opencl_assert(device_opencl_get_num_platforms_safe(&num_platforms));
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if(num_platforms == 0) {
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return "No OpenCL platforms found\n";
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}
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result += string_printf("Number of platforms: %u\n", num_platforms);
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vector<cl_platform_id> platform_ids;
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platform_ids.resize(num_platforms);
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opencl_assert(clGetPlatformIDs(num_platforms, &platform_ids[0], NULL));
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typedef char cl_string[1024];
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#define APPEND_INFO(func, id, name, what, type) \
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do { \
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type data; \
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memset(&data, 0, sizeof(data)); \
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opencl_assert(func(id, what, sizeof(data), &data, NULL)); \
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result += string_printf("%s: %s\n", name, to_string(data).c_str()); \
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} while(false)
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#define APPEND_STRING_EXTENSION_INFO(func, id, name, what) \
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do { \
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char data[1024] = "\0"; \
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size_t length = 0; \
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if(func(id, what, sizeof(data), &data, &length) == CL_SUCCESS) { \
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if(length != 0 && data[0] != '\0') { \
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result += string_printf("%s: %s\n", name, data); \
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} \
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} \
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} while(false)
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#define APPEND_PLATFORM_INFO(id, name, what, type) \
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APPEND_INFO(clGetPlatformInfo, id, "\tPlatform " name, what, type)
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#define APPEND_DEVICE_INFO(id, name, what, type) \
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APPEND_INFO(clGetDeviceInfo, id, "\t\t\tDevice " name, what, type)
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#define APPEND_DEVICE_STRING_EXTENSION_INFO(id, name, what) \
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APPEND_STRING_EXTENSION_INFO(clGetDeviceInfo, id, "\t\t\tDevice " name, what)
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vector<cl_device_id> device_ids;
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for(cl_uint platform = 0; platform < num_platforms; ++platform) {
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cl_platform_id platform_id = platform_ids[platform];
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result += string_printf("Platform #%u\n", platform);
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APPEND_PLATFORM_INFO(platform_id, "Name", CL_PLATFORM_NAME, cl_string);
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APPEND_PLATFORM_INFO(platform_id, "Vendor", CL_PLATFORM_VENDOR, cl_string);
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APPEND_PLATFORM_INFO(platform_id, "Version", CL_PLATFORM_VERSION, cl_string);
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APPEND_PLATFORM_INFO(platform_id, "Profile", CL_PLATFORM_PROFILE, cl_string);
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APPEND_PLATFORM_INFO(platform_id, "Extensions", CL_PLATFORM_EXTENSIONS, cl_string);
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cl_uint num_devices = 0;
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opencl_assert(clGetDeviceIDs(platform_ids[platform],
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CL_DEVICE_TYPE_ALL,
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0,
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NULL,
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&num_devices));
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result += string_printf("\tNumber of devices: %u\n", num_devices);
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device_ids.resize(num_devices);
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opencl_assert(clGetDeviceIDs(platform_ids[platform],
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CL_DEVICE_TYPE_ALL,
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num_devices,
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&device_ids[0],
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NULL));
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for(cl_uint device = 0; device < num_devices; ++device) {
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cl_device_id device_id = device_ids[device];
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result += string_printf("\t\tDevice: #%u\n", device);
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APPEND_DEVICE_INFO(device_id, "Name", CL_DEVICE_NAME, cl_string);
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APPEND_DEVICE_STRING_EXTENSION_INFO(device_id, "Board Name", CL_DEVICE_BOARD_NAME_AMD);
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APPEND_DEVICE_INFO(device_id, "Vendor", CL_DEVICE_VENDOR, cl_string);
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APPEND_DEVICE_INFO(device_id, "OpenCL C Version", CL_DEVICE_OPENCL_C_VERSION, cl_string);
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APPEND_DEVICE_INFO(device_id, "Profile", CL_DEVICE_PROFILE, cl_string);
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APPEND_DEVICE_INFO(device_id, "Version", CL_DEVICE_VERSION, cl_string);
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APPEND_DEVICE_INFO(device_id, "Extensions", CL_DEVICE_EXTENSIONS, cl_string);
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APPEND_DEVICE_INFO(device_id, "Max clock frequency (MHz)", CL_DEVICE_MAX_CLOCK_FREQUENCY, cl_uint);
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APPEND_DEVICE_INFO(device_id, "Max compute units", CL_DEVICE_MAX_COMPUTE_UNITS, cl_uint);
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APPEND_DEVICE_INFO(device_id, "Max work group size", CL_DEVICE_MAX_WORK_GROUP_SIZE, size_t);
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}
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}
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#undef APPEND_STRING_INFO
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#undef APPEND_PLATFORM_STRING_INFO
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#undef APPEND_DEVICE_STRING_INFO
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return result;
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}
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CCL_NAMESPACE_END
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#endif /* WITH_OPENCL */
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