1 ### 2 # 3 # @copyright (c) 2009-2014 The University of Tennessee and The University 4 # of Tennessee Research Foundation. 5 # All rights reserved. 6 # @copyright (c) 2012-2016 Inria. All rights reserved. 7 # @copyright (c) 2012-2014 Bordeaux INP, CNRS (LaBRI UMR 5800), Inria, Univ. Bordeaux. All rights reserved. 8 # 9 ### 10 # 11 # - Find PTSCOTCH include dirs and libraries 12 # Use this module by invoking find_package with the form: 13 # find_package(PTSCOTCH 14 # [REQUIRED] # Fail with error if ptscotch is not found 15 # [COMPONENTS <comp1> <comp2> ...] # dependencies 16 # ) 17 # 18 # PTSCOTCH depends on the following libraries: 19 # - Threads 20 # - MPI 21 # 22 # COMPONENTS can be some of the following: 23 # - ESMUMPS: to activate detection of PT-Scotch with the esmumps interface 24 # 25 # This module finds headers and ptscotch library. 26 # Results are reported in variables: 27 # PTSCOTCH_FOUND - True if headers and requested libraries were found 28 # PTSCOTCH_LINKER_FLAGS - list of required linker flags (excluding -l and -L) 29 # PTSCOTCH_INCLUDE_DIRS - ptscotch include directories 30 # PTSCOTCH_LIBRARY_DIRS - Link directories for ptscotch libraries 31 # PTSCOTCH_LIBRARIES - ptscotch component libraries to be linked 32 # PTSCOTCH_INCLUDE_DIRS_DEP - ptscotch + dependencies include directories 33 # PTSCOTCH_LIBRARY_DIRS_DEP - ptscotch + dependencies link directories 34 # PTSCOTCH_LIBRARIES_DEP - ptscotch libraries + dependencies 35 # PTSCOTCH_INTSIZE - Number of octets occupied by a SCOTCH_Num 36 # 37 # The user can give specific paths where to find the libraries adding cmake 38 # options at configure (ex: cmake path/to/project -DPTSCOTCH=path/to/ptscotch): 39 # PTSCOTCH_DIR - Where to find the base directory of ptscotch 40 # PTSCOTCH_INCDIR - Where to find the header files 41 # PTSCOTCH_LIBDIR - Where to find the library files 42 # The module can also look for the following environment variables if paths 43 # are not given as cmake variable: PTSCOTCH_DIR, PTSCOTCH_INCDIR, PTSCOTCH_LIBDIR 44 45 #============================================================================= 46 # Copyright 2012-2013 Inria 47 # Copyright 2012-2013 Emmanuel Agullo 48 # Copyright 2012-2013 Mathieu Faverge 49 # Copyright 2012 Cedric Castagnede 50 # Copyright 2013-2016 Florent Pruvost 51 # 52 # Distributed under the OSI-approved BSD License (the "License"); 53 # see accompanying file MORSE-Copyright.txt for details. 54 # 55 # This software is distributed WITHOUT ANY WARRANTY; without even the 56 # implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 57 # See the License for more information. 58 #============================================================================= 59 # (To distribute this file outside of Morse, substitute the full 60 # License text for the above reference.) 61 62 if (NOT PTSCOTCH_FOUND) 63 set(PTSCOTCH_DIR "" CACHE PATH "Installation directory of PTSCOTCH library") 64 if (NOT PTSCOTCH_FIND_QUIETLY) 65 message(STATUS "A cache variable, namely PTSCOTCH_DIR, has been set to specify the install directory of PTSCOTCH") 66 endif() 67 endif() 68 69 # Set the version to find 70 set(PTSCOTCH_LOOK_FOR_ESMUMPS OFF) 71 72 if( PTSCOTCH_FIND_COMPONENTS ) 73 foreach( component ${PTSCOTCH_FIND_COMPONENTS} ) 74 if (${component} STREQUAL "ESMUMPS") 75 # means we look for esmumps library 76 set(PTSCOTCH_LOOK_FOR_ESMUMPS ON) 77 endif() 78 endforeach() 79 endif() 80 81 # PTSCOTCH depends on Threads, try to find it 82 if (NOT THREADS_FOUND) 83 if (PTSCOTCH_FIND_REQUIRED) 84 find_package(Threads REQUIRED) 85 else() 86 find_package(Threads) 87 endif() 88 endif() 89 90 # PTSCOTCH depends on MPI, try to find it 91 if (NOT MPI_FOUND) 92 if (PTSCOTCH_FIND_REQUIRED) 93 find_package(MPI REQUIRED) 94 else() 95 find_package(MPI) 96 endif() 97 endif() 98 99 # Looking for include 100 # ------------------- 101 102 # Add system include paths to search include 103 # ------------------------------------------ 104 unset(_inc_env) 105 set(ENV_PTSCOTCH_DIR "$ENV{PTSCOTCH_DIR}") 106 set(ENV_PTSCOTCH_INCDIR "$ENV{PTSCOTCH_INCDIR}") 107 if(ENV_PTSCOTCH_INCDIR) 108 list(APPEND _inc_env "${ENV_PTSCOTCH_INCDIR}") 109 elseif(ENV_PTSCOTCH_DIR) 110 list(APPEND _inc_env "${ENV_PTSCOTCH_DIR}") 111 list(APPEND _inc_env "${ENV_PTSCOTCH_DIR}/include") 112 list(APPEND _inc_env "${ENV_PTSCOTCH_DIR}/include/ptscotch") 113 else() 114 if(WIN32) 115 string(REPLACE ":" ";" _inc_env "$ENV{INCLUDE}") 116 else() 117 string(REPLACE ":" ";" _path_env "$ENV{INCLUDE}") 118 list(APPEND _inc_env "${_path_env}") 119 string(REPLACE ":" ";" _path_env "$ENV{C_INCLUDE_PATH}") 120 list(APPEND _inc_env "${_path_env}") 121 string(REPLACE ":" ";" _path_env "$ENV{CPATH}") 122 list(APPEND _inc_env "${_path_env}") 123 string(REPLACE ":" ";" _path_env "$ENV{INCLUDE_PATH}") 124 list(APPEND _inc_env "${_path_env}") 125 endif() 126 endif() 127 list(APPEND _inc_env "${CMAKE_PLATFORM_IMPLICIT_INCLUDE_DIRECTORIES}") 128 list(APPEND _inc_env "${CMAKE_C_IMPLICIT_INCLUDE_DIRECTORIES}") 129 list(REMOVE_DUPLICATES _inc_env) 130 131 132 # Try to find the ptscotch header in the given paths 133 # ------------------------------------------------- 134 135 set(PTSCOTCH_hdrs_to_find "ptscotch.h;scotch.h") 136 137 # call cmake macro to find the header path 138 if(PTSCOTCH_INCDIR) 139 foreach(ptscotch_hdr ${PTSCOTCH_hdrs_to_find}) 140 set(PTSCOTCH_${ptscotch_hdr}_DIRS "PTSCOTCH_${ptscotch_hdr}_DIRS-NOTFOUND") 141 find_path(PTSCOTCH_${ptscotch_hdr}_DIRS 142 NAMES ${ptscotch_hdr} 143 HINTS ${PTSCOTCH_INCDIR}) 144 mark_as_advanced(PTSCOTCH_${ptscotch_hdr}_DIRS) 145 endforeach() 146 else() 147 if(PTSCOTCH_DIR) 148 foreach(ptscotch_hdr ${PTSCOTCH_hdrs_to_find}) 149 set(PTSCOTCH_${ptscotch_hdr}_DIRS "PTSCOTCH_${ptscotch_hdr}_DIRS-NOTFOUND") 150 find_path(PTSCOTCH_${ptscotch_hdr}_DIRS 151 NAMES ${ptscotch_hdr} 152 HINTS ${PTSCOTCH_DIR} 153 PATH_SUFFIXES "include" "include/scotch") 154 mark_as_advanced(PTSCOTCH_${ptscotch_hdr}_DIRS) 155 endforeach() 156 else() 157 foreach(ptscotch_hdr ${PTSCOTCH_hdrs_to_find}) 158 set(PTSCOTCH_${ptscotch_hdr}_DIRS "PTSCOTCH_${ptscotch_hdr}_DIRS-NOTFOUND") 159 find_path(PTSCOTCH_${ptscotch_hdr}_DIRS 160 NAMES ${ptscotch_hdr} 161 HINTS ${_inc_env} 162 PATH_SUFFIXES "scotch") 163 mark_as_advanced(PTSCOTCH_${ptscotch_hdr}_DIRS) 164 endforeach() 165 endif() 166 endif() 167 168 # If found, add path to cmake variable 169 # ------------------------------------ 170 foreach(ptscotch_hdr ${PTSCOTCH_hdrs_to_find}) 171 if (PTSCOTCH_${ptscotch_hdr}_DIRS) 172 list(APPEND PTSCOTCH_INCLUDE_DIRS "${PTSCOTCH_${ptscotch_hdr}_DIRS}") 173 else () 174 set(PTSCOTCH_INCLUDE_DIRS "PTSCOTCH_INCLUDE_DIRS-NOTFOUND") 175 if (NOT PTSCOTCH_FIND_QUIETLY) 176 message(STATUS "Looking for ptscotch -- ${ptscotch_hdr} not found") 177 endif() 178 endif() 179 endforeach() 180 list(REMOVE_DUPLICATES PTSCOTCH_INCLUDE_DIRS) 181 182 # Looking for lib 183 # --------------- 184 185 # Add system library paths to search lib 186 # -------------------------------------- 187 unset(_lib_env) 188 set(ENV_PTSCOTCH_LIBDIR "$ENV{PTSCOTCH_LIBDIR}") 189 if(ENV_PTSCOTCH_LIBDIR) 190 list(APPEND _lib_env "${ENV_PTSCOTCH_LIBDIR}") 191 elseif(ENV_PTSCOTCH_DIR) 192 list(APPEND _lib_env "${ENV_PTSCOTCH_DIR}") 193 list(APPEND _lib_env "${ENV_PTSCOTCH_DIR}/lib") 194 else() 195 if(WIN32) 196 string(REPLACE ":" ";" _lib_env "$ENV{LIB}") 197 else() 198 if(APPLE) 199 string(REPLACE ":" ";" _lib_env "$ENV{DYLD_LIBRARY_PATH}") 200 else() 201 string(REPLACE ":" ";" _lib_env "$ENV{LD_LIBRARY_PATH}") 202 endif() 203 list(APPEND _lib_env "${CMAKE_PLATFORM_IMPLICIT_LINK_DIRECTORIES}") 204 list(APPEND _lib_env "${CMAKE_C_IMPLICIT_LINK_DIRECTORIES}") 205 endif() 206 endif() 207 list(REMOVE_DUPLICATES _lib_env) 208 209 # Try to find the ptscotch lib in the given paths 210 # ---------------------------------------------- 211 212 set(PTSCOTCH_libs_to_find "ptscotch;ptscotcherr") 213 if (PTSCOTCH_LOOK_FOR_ESMUMPS) 214 list(INSERT PTSCOTCH_libs_to_find 0 "ptesmumps") 215 list(APPEND PTSCOTCH_libs_to_find "esmumps" ) 216 endif() 217 list(APPEND PTSCOTCH_libs_to_find "scotch;scotcherr") 218 219 # call cmake macro to find the lib path 220 if(PTSCOTCH_LIBDIR) 221 foreach(ptscotch_lib ${PTSCOTCH_libs_to_find}) 222 set(PTSCOTCH_${ptscotch_lib}_LIBRARY "PTSCOTCH_${ptscotch_lib}_LIBRARY-NOTFOUND") 223 find_library(PTSCOTCH_${ptscotch_lib}_LIBRARY 224 NAMES ${ptscotch_lib} 225 HINTS ${PTSCOTCH_LIBDIR}) 226 endforeach() 227 else() 228 if(PTSCOTCH_DIR) 229 foreach(ptscotch_lib ${PTSCOTCH_libs_to_find}) 230 set(PTSCOTCH_${ptscotch_lib}_LIBRARY "PTSCOTCH_${ptscotch_lib}_LIBRARY-NOTFOUND") 231 find_library(PTSCOTCH_${ptscotch_lib}_LIBRARY 232 NAMES ${ptscotch_lib} 233 HINTS ${PTSCOTCH_DIR} 234 PATH_SUFFIXES lib lib32 lib64) 235 endforeach() 236 else() 237 foreach(ptscotch_lib ${PTSCOTCH_libs_to_find}) 238 set(PTSCOTCH_${ptscotch_lib}_LIBRARY "PTSCOTCH_${ptscotch_lib}_LIBRARY-NOTFOUND") 239 find_library(PTSCOTCH_${ptscotch_lib}_LIBRARY 240 NAMES ${ptscotch_lib} 241 HINTS ${_lib_env}) 242 endforeach() 243 endif() 244 endif() 245 246 set(PTSCOTCH_LIBRARIES "") 247 set(PTSCOTCH_LIBRARY_DIRS "") 248 # If found, add path to cmake variable 249 # ------------------------------------ 250 foreach(ptscotch_lib ${PTSCOTCH_libs_to_find}) 251 252 if (PTSCOTCH_${ptscotch_lib}_LIBRARY) 253 get_filename_component(${ptscotch_lib}_lib_path "${PTSCOTCH_${ptscotch_lib}_LIBRARY}" PATH) 254 # set cmake variables 255 list(APPEND PTSCOTCH_LIBRARIES "${PTSCOTCH_${ptscotch_lib}_LIBRARY}") 256 list(APPEND PTSCOTCH_LIBRARY_DIRS "${${ptscotch_lib}_lib_path}") 257 else () 258 list(APPEND PTSCOTCH_LIBRARIES "${PTSCOTCH_${ptscotch_lib}_LIBRARY}") 259 if (NOT PTSCOTCH_FIND_QUIETLY) 260 message(STATUS "Looking for ptscotch -- lib ${ptscotch_lib} not found") 261 endif() 262 endif () 263 264 mark_as_advanced(PTSCOTCH_${ptscotch_lib}_LIBRARY) 265 266 endforeach() 267 list(REMOVE_DUPLICATES PTSCOTCH_LIBRARY_DIRS) 268 269 # check a function to validate the find 270 if(PTSCOTCH_LIBRARIES) 271 272 set(REQUIRED_LDFLAGS) 273 set(REQUIRED_INCDIRS) 274 set(REQUIRED_LIBDIRS) 275 set(REQUIRED_LIBS) 276 277 # PTSCOTCH 278 if (PTSCOTCH_INCLUDE_DIRS) 279 set(REQUIRED_INCDIRS "${PTSCOTCH_INCLUDE_DIRS}") 280 endif() 281 if (PTSCOTCH_LIBRARY_DIRS) 282 set(REQUIRED_LIBDIRS "${PTSCOTCH_LIBRARY_DIRS}") 283 endif() 284 set(REQUIRED_LIBS "${PTSCOTCH_LIBRARIES}") 285 # MPI 286 if (MPI_FOUND) 287 if (MPI_C_INCLUDE_PATH) 288 list(APPEND CMAKE_REQUIRED_INCLUDES "${MPI_C_INCLUDE_PATH}") 289 endif() 290 if (MPI_C_LINK_FLAGS) 291 if (${MPI_C_LINK_FLAGS} MATCHES " -") 292 string(REGEX REPLACE " -" "-" MPI_C_LINK_FLAGS ${MPI_C_LINK_FLAGS}) 293 endif() 294 list(APPEND REQUIRED_LDFLAGS "${MPI_C_LINK_FLAGS}") 295 endif() 296 list(APPEND REQUIRED_LIBS "${MPI_C_LIBRARIES}") 297 endif() 298 # THREADS 299 if(CMAKE_THREAD_LIBS_INIT) 300 list(APPEND REQUIRED_LIBS "${CMAKE_THREAD_LIBS_INIT}") 301 endif() 302 set(Z_LIBRARY "Z_LIBRARY-NOTFOUND") 303 find_library(Z_LIBRARY NAMES z) 304 mark_as_advanced(Z_LIBRARY) 305 if(Z_LIBRARY) 306 list(APPEND REQUIRED_LIBS "-lz") 307 endif() 308 set(M_LIBRARY "M_LIBRARY-NOTFOUND") 309 find_library(M_LIBRARY NAMES m) 310 mark_as_advanced(M_LIBRARY) 311 if(M_LIBRARY) 312 list(APPEND REQUIRED_LIBS "-lm") 313 endif() 314 set(RT_LIBRARY "RT_LIBRARY-NOTFOUND") 315 find_library(RT_LIBRARY NAMES rt) 316 mark_as_advanced(RT_LIBRARY) 317 if(RT_LIBRARY) 318 list(APPEND REQUIRED_LIBS "-lrt") 319 endif() 320 321 # set required libraries for link 322 set(CMAKE_REQUIRED_INCLUDES "${REQUIRED_INCDIRS}") 323 set(CMAKE_REQUIRED_LIBRARIES) 324 list(APPEND CMAKE_REQUIRED_LIBRARIES "${REQUIRED_LDFLAGS}") 325 foreach(lib_dir ${REQUIRED_LIBDIRS}) 326 list(APPEND CMAKE_REQUIRED_LIBRARIES "-L${lib_dir}") 327 endforeach() 328 list(APPEND CMAKE_REQUIRED_LIBRARIES "${REQUIRED_LIBS}") 329 list(APPEND CMAKE_REQUIRED_FLAGS "${REQUIRED_FLAGS}") 330 string(REGEX REPLACE "^ -" "-" CMAKE_REQUIRED_LIBRARIES "${CMAKE_REQUIRED_LIBRARIES}") 331 332 # test link 333 unset(PTSCOTCH_WORKS CACHE) 334 include(CheckFunctionExists) 335 check_function_exists(SCOTCH_dgraphInit PTSCOTCH_WORKS) 336 mark_as_advanced(PTSCOTCH_WORKS) 337 338 if(PTSCOTCH_WORKS) 339 # save link with dependencies 340 set(PTSCOTCH_LIBRARIES_DEP "${REQUIRED_LIBS}") 341 set(PTSCOTCH_LIBRARY_DIRS_DEP "${REQUIRED_LIBDIRS}") 342 set(PTSCOTCH_INCLUDE_DIRS_DEP "${REQUIRED_INCDIRS}") 343 set(PTSCOTCH_LINKER_FLAGS "${REQUIRED_LDFLAGS}") 344 list(REMOVE_DUPLICATES PTSCOTCH_LIBRARY_DIRS_DEP) 345 list(REMOVE_DUPLICATES PTSCOTCH_INCLUDE_DIRS_DEP) 346 list(REMOVE_DUPLICATES PTSCOTCH_LINKER_FLAGS) 347 else() 348 if(NOT PTSCOTCH_FIND_QUIETLY) 349 message(STATUS "Looking for PTSCOTCH : test of SCOTCH_dgraphInit with PTSCOTCH library fails") 350 message(STATUS "CMAKE_REQUIRED_LIBRARIES: ${CMAKE_REQUIRED_LIBRARIES}") 351 message(STATUS "CMAKE_REQUIRED_INCLUDES: ${CMAKE_REQUIRED_INCLUDES}") 352 message(STATUS "Check in CMakeFiles/CMakeError.log to figure out why it fails") 353 endif() 354 endif() 355 set(CMAKE_REQUIRED_INCLUDES) 356 set(CMAKE_REQUIRED_FLAGS) 357 set(CMAKE_REQUIRED_LIBRARIES) 358 endif(PTSCOTCH_LIBRARIES) 359 360 if (PTSCOTCH_LIBRARIES) 361 list(GET PTSCOTCH_LIBRARIES 0 first_lib) 362 get_filename_component(first_lib_path "${first_lib}" PATH) 363 if (${first_lib_path} MATCHES "/lib(32|64)?$") 364 string(REGEX REPLACE "/lib(32|64)?$" "" not_cached_dir "${first_lib_path}") 365 set(PTSCOTCH_DIR_FOUND "${not_cached_dir}" CACHE PATH "Installation directory of PTSCOTCH library" FORCE) 366 else() 367 set(PTSCOTCH_DIR_FOUND "${first_lib_path}" CACHE PATH "Installation directory of PTSCOTCH library" FORCE) 368 endif() 369 endif() 370 mark_as_advanced(PTSCOTCH_DIR) 371 mark_as_advanced(PTSCOTCH_DIR_FOUND) 372 373 # Check the size of SCOTCH_Num 374 # --------------------------------- 375 set(CMAKE_REQUIRED_INCLUDES ${PTSCOTCH_INCLUDE_DIRS}) 376 377 include(CheckCSourceRuns) 378 #stdio.h and stdint.h should be included by scotch.h directly 379 set(PTSCOTCH_C_TEST_SCOTCH_Num_4 " 380 #include <stdio.h> 381 #include <stdint.h> 382 #include <ptscotch.h> 383 int main(int argc, char **argv) { 384 if (sizeof(SCOTCH_Num) == 4) 385 return 0; 386 else 387 return 1; 388 } 389 ") 390 391 set(PTSCOTCH_C_TEST_SCOTCH_Num_8 " 392 #include <stdio.h> 393 #include <stdint.h> 394 #include <ptscotch.h> 395 int main(int argc, char **argv) { 396 if (sizeof(SCOTCH_Num) == 8) 397 return 0; 398 else 399 return 1; 400 } 401 ") 402 check_c_source_runs("${PTSCOTCH_C_TEST_SCOTCH_Num_4}" PTSCOTCH_Num_4) 403 if(NOT PTSCOTCH_Num_4) 404 check_c_source_runs("${PTSCOTCH_C_TEST_SCOTCH_Num_8}" PTSCOTCH_Num_8) 405 if(NOT PTSCOTCH_Num_8) 406 set(PTSCOTCH_INTSIZE -1) 407 else() 408 set(PTSCOTCH_INTSIZE 8) 409 endif() 410 else() 411 set(PTSCOTCH_INTSIZE 4) 412 endif() 413 set(CMAKE_REQUIRED_INCLUDES "") 414 415 # check that PTSCOTCH has been found 416 # --------------------------------- 417 include(FindPackageHandleStandardArgs) 418 find_package_handle_standard_args(PTSCOTCH DEFAULT_MSG 419 PTSCOTCH_LIBRARIES 420 PTSCOTCH_WORKS) 421 # 422 # TODO: Add possibility to check for specific functions in the library 423 # 424
