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FindHWLOC.cmake
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#
# This file is part of the GROMACS molecular simulation package.
#
# Copyright 2019- The GROMACS Authors
# and the project initiators Erik Lindahl, Berk Hess and David van der Spoel.
# Consult the AUTHORS/COPYING files and https://www.gromacs.org for details.
#
# GROMACS is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public License
# as published by the Free Software Foundation; either version 2.1
# of the License, or (at your option) any later version.
#
# GROMACS is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with GROMACS; if not, see
# https://www.gnu.org/licenses, or write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# If you want to redistribute modifications to GROMACS, please
# consider that scientific software is very special. Version
# control is crucial - bugs must be traceable. We will be happy to
# consider code for inclusion in the official distribution, but
# derived work must not be called official GROMACS. Details are found
# in the README & COPYING files - if they are missing, get the
# official version at https://www.gromacs.org.
#
# To help us fund GROMACS development, we humbly ask that you cite
# the research papers on the package. Check out https://www.gromacs.org.
###
#
# @copyright (c) 2009-2014 The University of Tennessee and The University
# of Tennessee Research Foundation.
# All rights reserved.
# @copyright (c) 2012-2014 Inria. All rights reserved.
# @copyright (c) 2012-2014 Bordeaux INP, CNRS (LaBRI UMR 5800), Inria, Univ. Bordeaux. All rights reserved.
#
###
#
# - Find HWLOC include dirs and libraries
# Use this module by invoking find_package with the form:
# find_package(HWLOC
# [REQUIRED]) # Fail with error if hwloc is not found
#
# This module finds headers and hwloc library.
# Results are reported in variables:
# HWLOC_FOUND - True if headers and requested libraries were found
# HWLOC_INCLUDE_DIRS - hwloc include directories
# HWLOC_LIBRARY_DIRS - Link directories for hwloc libraries
# HWLOC_LIBRARIES - hwloc component libraries to be linked
#
# The user can give specific paths where to find the libraries adding cmake
# options at configure (ex: cmake path/to/project -DHWLOC_DIR=path/to/hwloc):
# HWLOC_DIR - Where to find the base directory of hwloc
# HWLOC_INCDIR - Where to find the header files
# HWLOC_LIBDIR - Where to find the library files
# The module can also look for the following environment variables if paths
# are not given as cmake variable: HWLOC_DIR, HWLOC_INCDIR, HWLOC_LIBDIR
#=============================================================================
# Copyright 2012-2013 Inria
# Copyright 2012-2013 Emmanuel Agullo
# Copyright 2012-2013 Mathieu Faverge
# Copyright 2012 Cedric Castagnede
# Copyright 2013 Florent Pruvost
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file MORSE-Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of Morse, substitute the full
# License text for the above reference.)
include(CheckStructHasMember)
include(CheckCSourceCompiles)
if (NOT HWLOC_FOUND)
set(HWLOC_DIR "" CACHE PATH "Installation directory of HWLOC library")
endif()
set(ENV_HWLOC_DIR "$ENV{HWLOC_DIR}")
set(ENV_HWLOC_INCDIR "$ENV{HWLOC_INCDIR}")
set(ENV_HWLOC_LIBDIR "$ENV{HWLOC_LIBDIR}")
set(HWLOC_GIVEN_BY_USER "FALSE")
if ( HWLOC_DIR OR ( HWLOC_INCDIR AND HWLOC_LIBDIR) OR ENV_HWLOC_DIR OR (ENV_HWLOC_INCDIR AND ENV_HWLOC_LIBDIR) )
set(HWLOC_GIVEN_BY_USER "TRUE")
endif()
if (NOT HWLOC_FIND_QUIETLY)
message(STATUS "Looking for HWLOC")
endif()
# Looking for include
# -------------------
# Add system include paths to search include
# ------------------------------------------
unset(_inc_env)
if(ENV_HWLOC_INCDIR)
list(APPEND _inc_env "${ENV_HWLOC_INCDIR}")
elseif(ENV_HWLOC_DIR)
list(APPEND _inc_env "${ENV_HWLOC_DIR}")
list(APPEND _inc_env "${ENV_HWLOC_DIR}/include")
list(APPEND _inc_env "${ENV_HWLOC_DIR}/include/hwloc")
else()
if(WIN32)
string(REPLACE ":" ";" _inc_env "$ENV{INCLUDE}")
else()
string(REPLACE ":" ";" _path_env "$ENV{INCLUDE}")
list(APPEND _inc_env "${_path_env}")
string(REPLACE ":" ";" _path_env "$ENV{C_INCLUDE_PATH}")
list(APPEND _inc_env "${_path_env}")
string(REPLACE ":" ";" _path_env "$ENV{CPATH}")
list(APPEND _inc_env "${_path_env}")
string(REPLACE ":" ";" _path_env "$ENV{INCLUDE_PATH}")
list(APPEND _inc_env "${_path_env}")
endif()
endif()
list(APPEND _inc_env "${CMAKE_PLATFORM_IMPLICIT_INCLUDE_DIRECTORIES}")
list(APPEND _inc_env "${CMAKE_C_IMPLICIT_INCLUDE_DIRECTORIES}")
list(REMOVE_DUPLICATES _inc_env)
# set paths where to look for
set(PATH_TO_LOOK_FOR "${_inc_env}")
# Try to find the hwloc header in the given paths
# -------------------------------------------------
# call cmake macro to find the header path
if(HWLOC_INCDIR)
set(HWLOC_hwloc.h_DIRS "HWLOC_hwloc.h_DIRS-NOTFOUND")
find_path(HWLOC_hwloc.h_DIRS
NAMES hwloc.h
HINTS ${HWLOC_INCDIR})
else()
if(HWLOC_DIR)
set(HWLOC_hwloc.h_DIRS "HWLOC_hwloc.h_DIRS-NOTFOUND")
find_path(HWLOC_hwloc.h_DIRS
NAMES hwloc.h
HINTS ${HWLOC_DIR}
PATH_SUFFIXES "include" "include/hwloc")
else()
set(HWLOC_hwloc.h_DIRS "HWLOC_hwloc.h_DIRS-NOTFOUND")
find_path(HWLOC_hwloc.h_DIRS
NAMES hwloc.h
HINTS ${PATH_TO_LOOK_FOR}
PATH_SUFFIXES "hwloc")
endif()
endif()
mark_as_advanced(HWLOC_hwloc.h_DIRS)
# Add path to cmake variable
# ------------------------------------
if (HWLOC_hwloc.h_DIRS)
set(HWLOC_INCLUDE_DIRS "${HWLOC_hwloc.h_DIRS}")
else ()
set(HWLOC_INCLUDE_DIRS "HWLOC_INCLUDE_DIRS-NOTFOUND")
if(NOT HWLOC_FIND_QUIETLY)
message(STATUS "Looking for hwloc -- hwloc.h not found")
endif()
endif ()
if (HWLOC_INCLUDE_DIRS)
list(REMOVE_DUPLICATES HWLOC_INCLUDE_DIRS)
endif ()
# Looking for lib
# ---------------
# Add system library paths to search lib
# --------------------------------------
unset(_lib_env)
if(ENV_HWLOC_LIBDIR)
list(APPEND _lib_env "${ENV_HWLOC_LIBDIR}")
elseif(ENV_HWLOC_DIR)
list(APPEND _lib_env "${ENV_HWLOC_DIR}")
list(APPEND _lib_env "${ENV_HWLOC_DIR}/lib")
else()
if(WIN32)
string(REPLACE ":" ";" _lib_env "$ENV{LIB}")
else()
if(APPLE)
string(REPLACE ":" ";" _lib_env "$ENV{DYLD_LIBRARY_PATH}")
else()
string(REPLACE ":" ";" _lib_env "$ENV{LD_LIBRARY_PATH}")
endif()
list(APPEND _lib_env "${CMAKE_PLATFORM_IMPLICIT_LINK_DIRECTORIES}")
list(APPEND _lib_env "${CMAKE_C_IMPLICIT_LINK_DIRECTORIES}")
endif()
endif()
list(REMOVE_DUPLICATES _lib_env)
# set paths where to look for
set(PATH_TO_LOOK_FOR "${_lib_env}")
# Try to find the hwloc lib in the given paths
# ----------------------------------------------
# call cmake macro to find the lib path
if(HWLOC_LIBDIR)
set(HWLOC_hwloc_LIBRARY "HWLOC_hwloc_LIBRARY-NOTFOUND")
find_library(HWLOC_hwloc_LIBRARY
NAMES hwloc
HINTS ${HWLOC_LIBDIR})
else()
if(HWLOC_DIR)
set(HWLOC_hwloc_LIBRARY "HWLOC_hwloc_LIBRARY-NOTFOUND")
find_library(HWLOC_hwloc_LIBRARY
NAMES hwloc
HINTS ${HWLOC_DIR}
PATH_SUFFIXES lib lib32 lib64)
else()
set(HWLOC_hwloc_LIBRARY "HWLOC_hwloc_LIBRARY-NOTFOUND")
find_library(HWLOC_hwloc_LIBRARY
NAMES hwloc
HINTS ${PATH_TO_LOOK_FOR})
endif()
endif()
mark_as_advanced(HWLOC_hwloc_LIBRARY)
# If found, add path to cmake variable
# ------------------------------------
if (HWLOC_hwloc_LIBRARY)
get_filename_component(hwloc_lib_path ${HWLOC_hwloc_LIBRARY} PATH)
# set cmake variables (respects naming convention)
set(HWLOC_LIBRARIES "${HWLOC_hwloc_LIBRARY}")
set(HWLOC_LIBRARY_DIRS "${hwloc_lib_path}")
else ()
set(HWLOC_LIBRARIES "HWLOC_LIBRARIES-NOTFOUND")
set(HWLOC_LIBRARY_DIRS "HWLOC_LIBRARY_DIRS-NOTFOUND")
if(NOT HWLOC_FIND_QUIETLY)
message(STATUS "Looking for hwloc -- lib hwloc not found")
endif()
endif ()
if (HWLOC_LIBRARY_DIRS)
list(REMOVE_DUPLICATES HWLOC_LIBRARY_DIRS)
endif ()
# check a function to validate the find
if(HWLOC_LIBRARIES)
set(REQUIRED_INCDIRS)
set(REQUIRED_LIBDIRS)
set(REQUIRED_LIBS)
# HWLOC
if (HWLOC_INCLUDE_DIRS)
set(REQUIRED_INCDIRS "${HWLOC_INCLUDE_DIRS}")
endif()
if (HWLOC_LIBRARY_DIRS)
set(REQUIRED_LIBDIRS "${HWLOC_LIBRARY_DIRS}")
endif()
set(REQUIRED_LIBS "${HWLOC_LIBRARIES}")
# set required libraries for link
set(CMAKE_REQUIRED_INCLUDES "${REQUIRED_INCDIRS}")
set(CMAKE_REQUIRED_LIBRARIES)
foreach(lib_dir ${REQUIRED_LIBDIRS})
list(APPEND CMAKE_REQUIRED_LIBRARIES "-L${lib_dir}")
endforeach()
list(APPEND CMAKE_REQUIRED_LIBRARIES "${REQUIRED_LIBS}")
string(REGEX REPLACE "^ -" "-" CMAKE_REQUIRED_LIBRARIES "${CMAKE_REQUIRED_LIBRARIES}")
# test link
include(CheckFunctionExists)
check_function_exists(hwloc_topology_init HWLOC_WORKS)
mark_as_advanced(HWLOC_WORKS)
if(NOT HWLOC_WORKS)
if(NOT HWLOC_FIND_QUIETLY)
message(STATUS "Looking for hwloc : test of hwloc_topology_init with hwloc library fails")
message(STATUS "CMAKE_REQUIRED_LIBRARIES: ${CMAKE_REQUIRED_LIBRARIES}")
message(STATUS "CMAKE_REQUIRED_INCLUDES: ${CMAKE_REQUIRED_INCLUDES}")
message(STATUS "Check in CMakeFiles/CMakeError.log to figure out why it fails")
endif()
endif()
set(CMAKE_REQUIRED_INCLUDES)
set(CMAKE_REQUIRED_FLAGS)
set(CMAKE_REQUIRED_LIBRARIES)
endif(HWLOC_LIBRARIES)
if (HWLOC_LIBRARIES)
if (HWLOC_LIBRARY_DIRS)
list(GET HWLOC_LIBRARY_DIRS 0 first_lib_path)
else()
list(GET HWLOC_LIBRARIES 0 first_lib)
get_filename_component(first_lib_path "${first_lib}" PATH)
endif()
if (${first_lib_path} MATCHES "/lib(32|64)?$")
string(REGEX REPLACE "/lib(32|64)?$" "" not_cached_dir "${first_lib_path}")
set(HWLOC_DIR_FOUND "${not_cached_dir}" CACHE PATH "Installation directory of HWLOC library" FORCE)
else()
set(HWLOC_DIR_FOUND "${first_lib_path}" CACHE PATH "Installation directory of HWLOC library" FORCE)
endif()
endif()
mark_as_advanced(HWLOC_DIR)
mark_as_advanced(HWLOC_DIR_FOUND)
# Function for converting hex version numbers from HWLOC_API_VERSION if necessary
function(HEX2DEC str res)
string(LENGTH "${str}" len)
if("${len}" EQUAL 1)
if("${str}" MATCHES "[0-9]")
set(${res} "${str}" PARENT_SCOPE)
elseif( "${str}" MATCHES "[aA]")
set(${res} 10 PARENT_SCOPE)
elseif( "${str}" MATCHES "[bB]")
set(${res} 11 PARENT_SCOPE)
elseif( "${str}" MATCHES "[cC]")
set(${res} 12 PARENT_SCOPE)
elseif( "${str}" MATCHES "[dD]")
set(${res} 13 PARENT_SCOPE)
elseif( "${str}" MATCHES "[eE]")
set(${res} 14 PARENT_SCOPE)
elseif( "${str}" MATCHES "[fF]")
set(${res} 15 PARENT_SCOPE)
else()
return()
endif()
else()
string(SUBSTRING "${str}" 0 1 str1)
string(SUBSTRING "${str}" 1 -1 str2)
hex2dec(${str1} res1)
hex2dec(${str2} res2)
math(EXPR val "16 * ${res1} + ${res2}")
set(${res} "${val}" PARENT_SCOPE)
endif()
endfunction()
if(HWLOC_INCLUDE_DIRS)
# If we are not cross-compiling we try to use the hwloc-info program
if(NOT CMAKE_CROSSCOMPILING)
find_program(HWLOC_INFO "hwloc-info"
HINTS "${HWLOC_DIR}" ENV HWLOC_DIR
PATH_SUFFIXES bin
)
mark_as_advanced(HWLOC_INFO)
if(HWLOC_INFO)
execute_process(COMMAND ${HWLOC_INFO} "--version"
RESULT_VARIABLE HWLOC_INFO_RES
OUTPUT_VARIABLE HWLOC_INFO_OUT
ERROR_VARIABLE HWLOC_INFO_ERR)
if(HWLOC_INFO_ERR)
message(STATUS "Error executing hwloc-info: ${HWLOC_INFO_ERR}")
endif()
string(REGEX MATCH "[0-9]+.*[0-9]+" HWLOC_INFO_OUT "${HWLOC_INFO_OUT}")
set(HWLOC_LIBRARY_VERSION ${HWLOC_INFO_OUT})
endif()
endif()
if (NOT HWLOC_FIND_QUIETLY)
message(STATUS "hwloc version: ${HWLOC_VERSION}")
endif()
# Parse header if cross-compiling, or if hwloc-info was not found
# Also used to check that library and header versions match
# HWLOC is never installed as a framework on OS X, so this should always work.
file(READ "${HWLOC_INCLUDE_DIRS}/hwloc.h"
HEADER_CONTENTS LIMIT 16384)
string(REGEX REPLACE ".*#define HWLOC_API_VERSION (0[xX][0-9a-fA-F]+).*" "\\1"
HWLOC_API_VERSION "${HEADER_CONTENTS}")
string(SUBSTRING "${HWLOC_API_VERSION}" 4 2 HEX_MAJOR)
string(SUBSTRING "${HWLOC_API_VERSION}" 6 2 HEX_MINOR)
string(SUBSTRING "${HWLOC_API_VERSION}" 8 2 HEX_PATCH)
hex2dec(${HEX_MAJOR} DEC_MAJOR)
hex2dec(${HEX_MINOR} DEC_MINOR)
hex2dec(${HEX_PATCH} DEC_PATCH)
set(HWLOC_HEADER_VERSION "${DEC_MAJOR}.${DEC_MINOR}.${DEC_PATCH}")
if (HWLOC_LIBRARY_VERSION AND HWLOC_HEADER_VERSION)
string(SUBSTRING "${HWLOC_LIBRARY_VERSION}" 0 1 LIBRARY_MAJOR)
string(SUBSTRING "${HWLOC_HEADER_VERSION}" 0 1 HEADER_MAJOR)
string(COMPARE EQUAL "${LIBRARY_MAJOR}" "${HEADER_MAJOR}" HWLOC_VERSION_CHECK)
if(NOT HWLOC_VERSION_CHECK)
message(FATAL_ERROR "Detected version mismatch between HWLOC headers and library. "
"Library version is ${HWLOC_LIBRARY_VERSION}, but header version is ${HWLOC_HEADER_VERSION}. "
"Make sure that you have the correct include and library directory set for HWLOC")
endif()
endif()
if (HWLOC_LIBRARY_VERSION)
set(HWLOC_VERSION ${HWLOC_LIBRARY_VERSION} CACHE STRING "HWLOC library version")
else()
set(HWLOC_VERSION ${HWLOC_HEADER_VERSION} CACHE STRING "HWLOC library version")
endif()
set(GMX_HWLOC_API_VERSION ${HWLOC_API_VERSION} CACHE STRING "HWLOC API version during configuration time")
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(HWLOC
REQUIRED_VARS HWLOC_LIBRARIES HWLOC_INCLUDE_DIRS
VERSION_VAR HWLOC_VERSION)
mark_as_advanced(HWLOC_INCLUDE_DIRS HWLOC_LIBRARIES HWLOC_VERSION GMX_HWLOC_API_VERSION)