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179 lines
4.5 KiB
179 lines
4.5 KiB
# FindHwloc
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# ----------
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#
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# Try to find Portable Hardware Locality (hwloc) libraries.
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# http://www.open-mpi.org/software/hwloc
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#
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# You may declare HWLOC_ROOT environment variable to tell where
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# your hwloc library is installed.
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#
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# Once done this will define::
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#
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# Hwloc_FOUND - True if hwloc was found
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# Hwloc_INCLUDE_DIRS - include directories for hwloc
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# Hwloc_LIBRARIES - link against these libraries to use hwloc
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# Hwloc_VERSION - version
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# Hwloc_CFLAGS - include directories as compiler flags
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# Hwloc_LDLFAGS - link paths and libs as compiler flags
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#
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#=============================================================================
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# Copyright 2014 Mikael Lepistö
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#
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# Distributed under the OSI-approved BSD License (the "License");
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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if(WIN32)
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find_path(Hwloc_INCLUDE_DIR
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NAMES
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hwloc.h
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PATHS
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ENV "PROGRAMFILES(X86)"
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ENV HWLOC_ROOT
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PATH_SUFFIXES
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include
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)
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find_library(Hwloc_LIBRARY
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NAMES
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libhwloc.lib
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PATHS
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ENV "PROGRAMFILES(X86)"
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ENV HWLOC_ROOT
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PATH_SUFFIXES
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lib
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)
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#
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# Check if the found library can be used to linking
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#
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SET (_TEST_SOURCE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/linktest.c")
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FILE (WRITE "${_TEST_SOURCE}"
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"
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#include <hwloc.h>
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int main()
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{
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hwloc_topology_t topology;
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int nbcores;
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hwloc_topology_init(&topology);
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hwloc_topology_load(topology);
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nbcores = hwloc_get_nbobjs_by_type(topology, HWLOC_OBJ_CORE);
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hwloc_topology_destroy(topology);
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return 0;
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}
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"
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)
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TRY_COMPILE(_LINK_SUCCESS ${CMAKE_BINARY_DIR} "${_TEST_SOURCE}"
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CMAKE_FLAGS
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"-DINCLUDE_DIRECTORIES:STRING=${Hwloc_INCLUDE_DIR}"
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CMAKE_FLAGS
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"-DLINK_LIBRARIES:STRING=${Hwloc_LIBRARY}"
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)
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IF(NOT _LINK_SUCCESS)
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if(CMAKE_SIZEOF_VOID_P EQUAL 8)
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message(STATUS "You are building 64bit target.")
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ELSE()
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message(STATUS "You are building 32bit code. If you like to build x64 use e.g. -G 'Visual Studio 12 Win64' generator." )
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ENDIF()
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message(FATAL_ERROR "Library found, but linking test program failed.")
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ENDIF()
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#
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# Resolve version if some compiled binary found...
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#
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find_program(HWLOC_INFO_EXECUTABLE
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NAMES
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hwloc-info
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PATHS
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ENV HWLOC_ROOT
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PATH_SUFFIXES
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bin
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)
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if(HWLOC_INFO_EXECUTABLE)
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execute_process(
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COMMAND ${HWLOC_INFO_EXECUTABLE} "--version"
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OUTPUT_VARIABLE HWLOC_VERSION_LINE
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OUTPUT_STRIP_TRAILING_WHITESPACE
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)
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string(REGEX MATCH "([0-9]+.[0-9]+)$"
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Hwloc_VERSION "${HWLOC_VERSION_LINE}")
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unset(HWLOC_VERSION_LINE)
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endif()
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#
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# All good
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#
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set(Hwloc_LIBRARIES ${Hwloc_LIBRARY})
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set(Hwloc_INCLUDE_DIRS ${Hwloc_INCLUDE_DIR})
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(
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Hwloc
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FOUND_VAR Hwloc_FOUND
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REQUIRED_VARS Hwloc_LIBRARY Hwloc_INCLUDE_DIR
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VERSION_VAR Hwloc_VERSION)
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mark_as_advanced(
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Hwloc_INCLUDE_DIR
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Hwloc_LIBRARY)
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foreach(arg ${Hwloc_INCLUDE_DIRS})
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set(Hwloc_CFLAGS "${Hwloc_CFLAGS} /I${arg}")
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endforeach()
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set(Hwloc_LDFLAGS "${Hwloc_LIBRARY}")
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else()
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# Find with pkgconfig
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find_package(PkgConfig)
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if(HWLOC_ROOT)
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set(ENV{PKG_CONFIG_PATH} "${HWLOC_ROOT}/lib/pkgconfig")
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else()
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foreach(PREFIX ${CMAKE_PREFIX_PATH})
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set(PKG_CONFIG_PATH "${PKG_CONFIG_PATH}:${PREFIX}/lib/pkgconfig")
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endforeach()
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set(ENV{PKG_CONFIG_PATH} "${PKG_CONFIG_PATH}:$ENV{PKG_CONFIG_PATH}")
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endif()
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if(hwloc_FIND_REQUIRED)
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set(_hwloc_OPTS "REQUIRED")
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elseif(hwloc_FIND_QUIETLY)
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set(_hwloc_OPTS "QUIET")
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else()
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set(_hwloc_output 1)
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endif()
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if(hwloc_FIND_VERSION)
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if(hwloc_FIND_VERSION_EXACT)
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pkg_check_modules(Hwloc ${_hwloc_OPTS} hwloc=${hwloc_FIND_VERSION})
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else()
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pkg_check_modules(Hwloc ${_hwloc_OPTS} hwloc>=${hwloc_FIND_VERSION})
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endif()
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else()
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pkg_check_modules(Hwloc ${_hwloc_OPTS} hwloc)
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endif()
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if(Hwloc_FOUND)
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(Hwloc DEFAULT_MSG Hwloc_LIBRARIES)
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if(NOT ${Hwloc_VERSION} VERSION_LESS 1.7.0)
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set(Hwloc_GL_FOUND 1)
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endif()
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if(_hwloc_output)
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message(STATUS
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"Found hwloc ${Hwloc_VERSION} in ${Hwloc_INCLUDE_DIRS}:${Hwloc_LIBRARIES}")
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endif()
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endif()
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endif()
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