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