Xavier Hallade
a02992f131
This patch adds a new Cycles device with similar functionality to the existing GPU devices. Kernel compilation and runtime interaction happen via oneAPI DPC++ compiler and SYCL API. This implementation is primarly focusing on Intel® Arc™ GPUs and other future Intel GPUs. The first supported drivers are 101.1660 on Windows and 22.10.22597 on Linux. The necessary tools for compilation are: - A SYCL compiler such as oneAPI DPC++ compiler or https://github.com/intel/llvm - Intel® oneAPI Level Zero which is used for low level device queries: https://github.com/oneapi-src/level-zero - To optionally generate prebuilt graphics binaries: Intel® Graphics Compiler All are included in Linux precompiled libraries on svn: https://svn.blender.org/svnroot/bf-blender/trunk/lib The same goes for Windows precompiled binaries but for the graphics compiler, available as "Intel® Graphics Offline Compiler for OpenCL™ Code" from https://www.intel.com/content/www/us/en/developer/articles/tool/oneapi-standalone-components.html, for which path can be set as OCLOC_INSTALL_DIR. Being based on the open SYCL standard, this implementation could also be extended to run on other compatible non-Intel hardware in the future. Reviewed By: sergey, brecht Differential Revision: https://developer.blender.org/D15254 Co-authored-by: Nikita Sirgienko <nikita.sirgienko@intel.com> Co-authored-by: Stefan Werner <stefan.werner@intel.com>
89 lines
2.1 KiB
CMake
89 lines
2.1 KiB
CMake
# SPDX-License-Identifier: BSD-3-Clause
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# Copyright 2021-2022 Intel Corporation
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# - Find SYCL library
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# Find the native SYCL header and libraries needed by oneAPI implementation
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# This module defines
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# SYCL_COMPILER, compiler which will be used for compilation of SYCL code
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# SYCL_LIBRARY, libraries to link against in order to use SYCL.
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# SYCL_INCLUDE_DIR, directories where SYCL headers can be found
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# SYCL_ROOT_DIR, The base directory to search for SYCL files.
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# This can also be an environment variable.
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# SYCL_FOUND, If false, then don't try to use SYCL.
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IF(NOT SYCL_ROOT_DIR AND NOT $ENV{SYCL_ROOT_DIR} STREQUAL "")
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SET(SYCL_ROOT_DIR $ENV{SYCL_ROOT_DIR})
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ENDIF()
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SET(_sycl_search_dirs
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${SYCL_ROOT_DIR}
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/usr/lib
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/usr/local/lib
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/opt/intel/oneapi/compiler/latest/linux/
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C:/Program\ Files\ \(x86\)/Intel/oneAPI/compiler/latest/windows
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)
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# Find DPC++ compiler.
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# Since the compiler name is possibly conflicting with the system-wide
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# CLang start with looking for either dpcpp or clang binary in the given
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# list of search paths only. If that fails, try to look for a system-wide
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# dpcpp binary.
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FIND_PROGRAM(SYCL_COMPILER
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NAMES
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dpcpp
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clang++
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HINTS
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${_sycl_search_dirs}
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PATH_SUFFIXES
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bin
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NO_CMAKE_FIND_ROOT_PATH
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NAMES_PER_DIR
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)
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# NOTE: No clang++ here so that we do not pick up a system-wide CLang
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# compiler.
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if(NOT SYCL_COMPILER)
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FIND_PROGRAM(SYCL_COMPILER
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NAMES
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dpcpp
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HINTS
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${_sycl_search_dirs}
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PATH_SUFFIXES
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bin
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)
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endif()
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FIND_LIBRARY(SYCL_LIBRARY
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NAMES
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sycl
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HINTS
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${_sycl_search_dirs}
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PATH_SUFFIXES
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lib64 lib
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)
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FIND_PATH(SYCL_INCLUDE_DIR
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NAMES
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CL/sycl.hpp
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HINTS
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${_sycl_search_dirs}
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PATH_SUFFIXES
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include
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include/sycl
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)
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INCLUDE(FindPackageHandleStandardArgs)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(SYCL DEFAULT_MSG SYCL_LIBRARY SYCL_INCLUDE_DIR)
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IF(SYCL_FOUND)
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get_filename_component(_SYCL_INCLUDE_PARENT_DIR ${SYCL_INCLUDE_DIR} DIRECTORY)
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SET(SYCL_INCLUDE_DIR ${SYCL_INCLUDE_DIR} ${_SYCL_INCLUDE_PARENT_DIR})
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ELSE()
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SET(SYCL_SYCL_FOUND FALSE)
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ENDIF()
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MARK_AS_ADVANCED(
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_SYCL_INCLUDE_PARENT_DIR
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)
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