2 # This file is part of the GROMACS molecular simulation package.
4 # Copyright (c) 2012,2013, by the GROMACS development team, led by
5 # David van der Spoel, Berk Hess, Erik Lindahl, and including many
6 # others, as listed in the AUTHORS file in the top-level source
7 # directory and at http://www.gromacs.org.
9 # GROMACS is free software; you can redistribute it and/or
10 # modify it under the terms of the GNU Lesser General Public License
11 # as published by the Free Software Foundation; either version 2.1
12 # of the License, or (at your option) any later version.
14 # GROMACS is distributed in the hope that it will be useful,
15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 # Lesser General Public License for more details.
19 # You should have received a copy of the GNU Lesser General Public
20 # License along with GROMACS; if not, see
21 # http://www.gnu.org/licenses, or write to the Free Software Foundation,
22 # Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
24 # If you want to redistribute modifications to GROMACS, please
25 # consider that scientific software is very special. Version
26 # control is crucial - bugs must be traceable. We will be happy to
27 # consider code for inclusion in the official distribution, but
28 # derived work must not be called official GROMACS. Details are found
29 # in the README & COPYING files - if they are missing, get the
30 # official version at http://www.gromacs.org.
32 # To help us fund GROMACS development, we humbly ask that you cite
33 # the research papers on the package. Check out http://www.gromacs.org.
35 cmake_minimum_required(VERSION 2.8)
36 # Keep CMake suitably quiet on Cygwin
37 set(CMAKE_LEGACY_CYGWIN_WIN32 0) # Remove when CMake >= 2.8.4 is required
39 # Allows CPack to act differently for normal tools and mdrun (e.g. because of MPI)
40 set(CPACK_COMPONENT_GROUP_TOOLS_DESCRIPTION "All GROMACS executable tools")
41 set(CPACK_COMPONENT_GROUP_MDRUN_DESCRIPTION "GROMACS executable for running simulations")
43 # CMake modules/macros are in a subdirectory to keep this file cleaner
44 # This needs to be set before project() in order to pick up toolchain files
45 list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake ${CMAKE_CURRENT_SOURCE_DIR}/cmake/Platform)
49 mark_as_advanced(DART_ROOT)
51 # PROJECT_VERSION should have the following structure:
52 # VERSION-dev[-SUFFIX] where the VERSION should have the for: vMajor.vMinor.vPatch
54 # The "-dev" suffix is important to keep because it makes possible to distinguish
55 # between a build from official release and a build from git release branch on a
56 # machine with no git.
58 # NOTE: when releasing the "-dev" suffix needs to be stripped off!
59 set(PROJECT_VERSION "4.6.6-dev")
60 # The version number of the regressiontest tarball against which this
61 # git branch can be tested. Normally, this will be the version of the
62 # last patch release. Comment the next line out for branches leading
63 # to a major/minor release.
64 set(REGRESSIONTEST_VERSION "4.6.5")
65 set(CUSTOM_VERSION_STRING ""
66 CACHE STRING "Custom version string (if empty, use hard-coded default)")
67 mark_as_advanced(CUSTOM_VERSION_STRING)
68 if (CUSTOM_VERSION_STRING)
69 set(PROJECT_VERSION ${CUSTOM_VERSION_STRING})
70 endif (CUSTOM_VERSION_STRING)
72 # It is a bit irritating, but this has to be set separately for now!
73 SET(CPACK_PACKAGE_VERSION_MAJOR "4")
74 SET(CPACK_PACKAGE_VERSION_MINOR "6")
75 SET(CPACK_PACKAGE_VERSION_PATCH "1")
77 # The numerical gromacs version. It is 40600 for 4.6.0.
78 # The #define GMX_VERSION in gmx_header_config_h is set to this value.
80 "${CPACK_PACKAGE_VERSION_MAJOR}*10000 + ${CPACK_PACKAGE_VERSION_MINOR}*100")
81 if(CPACK_PACKAGE_VERSION_PATCH)
83 "${NUM_VERSION} + ${CPACK_PACKAGE_VERSION_PATCH}")
86 # The API version tracks the numerical Gromacs version (for now).
87 # It is potentially different from the Gromacs version in the future, if
88 # the programs/libraries diverge from the presumably more stable API.
89 # The #define GMX_API_VERSION in version.h is set to this value to
90 # provide backward compatibility of software written against the Gromacs API.
91 set(API_VERSION ${NUM_VERSION})
93 if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT AND UNIX)
94 set(CMAKE_INSTALL_PREFIX "/usr/local/gromacs" CACHE STRING "Installation prefix (installation will need write permissions here)" FORCE)
97 include(gmxBuildTypeReference)
99 if(NOT CMAKE_BUILD_TYPE)
100 set(CMAKE_BUILD_TYPE "Release" CACHE STRING "Choose the type of build, options are: Debug Release RelWithDebInfo MinSizeRel Reference." FORCE)
101 endif(NOT CMAKE_BUILD_TYPE)
105 set(GMX_USE_RELATIVE_INSTALL_PATH OFF CACHE STRING "Use relative paths not absolute paths for cmake install. Has only an effect on cpack.")
106 mark_as_advanced(GMX_USE_RELATIVE_INSTALL_PATH)
108 set(CPACK_PACKAGE_VERSION ${PROJECT_VERSION})
109 set(CPACK_PACKAGE_VENDOR "gromacs.org")
110 set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "Gromacs - a toolkit for high-performance molecular simulation")
111 if (NOT GMX_USE_RELATIVE_INSTALL_PATH)
112 set(CPACK_SET_DESTDIR "ON")
114 set(CPACK_RESOURCE_FILE_WELCOME "${CMAKE_SOURCE_DIR}/admin/InstallWelcome.txt")
115 # Its GPL/LGPL, so they do not have to agree to a license for mere usage, but some installers require this...
116 set(CPACK_RESOURCE_FILE_LICENSE "${CMAKE_SOURCE_DIR}/COPYING")
117 set(CPACK_RESOURCE_FILE_README "${CMAKE_SOURCE_DIR}/admin/InstallInfo.txt")
118 set(CPACK_SOURCE_IGNORE_FILES "\\\\.isreposource$;\\\\.git/;\\\\.gitignore$")
119 set(CPACK_PROJECT_CONFIG_FILE "${CMAKE_SOURCE_DIR}/CPackInit.cmake")
120 SET(CPACK_SOURCE_INSTALLED_DIRECTORIES "${CMAKE_SOURCE_DIR};/;${CMAKE_BINARY_DIR}/man;man")
121 set(CPACK_PACKAGE_CONTACT "gmx-users@gromacs.org")
123 #must come after all cpack settings!
126 ########################################################################
127 # Check and warn if cache generated on a different host is being reused
128 ########################################################################
130 execute_process(COMMAND hostname
131 OUTPUT_VARIABLE TMP_HOSTNAME
132 OUTPUT_STRIP_TRAILING_WHITESPACE)
133 if(GMX_BUILD_HOSTNAME AND NOT "${GMX_BUILD_HOSTNAME}" STREQUAL "${TMP_HOSTNAME}")
135 The CMake cache, probably generated on a different host (${GMX_BUILD_HOSTNAME}),
136 is being reused! This could lead to inconsitencies; therefore, it is
137 recommended to regenerate the cache!")
139 set(GMX_BUILD_HOSTNAME "${TMP_HOSTNAME}" CACHE INTERNAL
140 "Hostname of the machine where the cache was generated.")
143 ########################################################################
144 # User input options - enable C++ - before any CXX flags are changed #
145 ########################################################################
147 # decide on GPU settings based on user-settings and GPU/CUDA detection
148 include(gmxManageGPU)
150 option(GMX_FORCE_CXX "Enable C++ compilation even if not necessary" OFF)
151 mark_as_advanced(GMX_FORCE_CXX)
153 option(GMX_COOL_QUOTES "Enable Gromacs cool quotes" ON)
154 mark_as_advanced(GMX_COOL_QUOTES)
156 if(GMX_GPU OR GMX_FORCE_CXX OR GMX_OPENMM)
159 set(CMAKE_PREFIX_PATH "" CACHE STRING "Extra locations to search for external libraries and tools (give directory without lib, bin, or include)")
161 ########################################################################
162 # User input options #
163 ########################################################################
164 option(GMX_DOUBLE "Use double precision (much slower, use only if you really need it)" OFF)
165 option(GMX_MPI "Build a parallel (message-passing) version of GROMACS" OFF)
166 option(GMX_THREAD_MPI "Build a thread-MPI-based multithreaded version of GROMACS (not compatible with MPI)" ON)
167 option(GMX_SOFTWARE_INVSQRT "Use GROMACS software 1/sqrt" ON)
168 mark_as_advanced(GMX_SOFTWARE_INVSQRT)
169 option(GMX_FAHCORE "Build a library with mdrun functionality" OFF)
170 mark_as_advanced(GMX_FAHCORE)
172 if(NOT DEFINED GMX_CPU_ACCELERATION AND NOT CMAKE_CROSSCOMPILING)
173 include(gmxDetectAcceleration)
174 gmx_detect_acceleration(GMX_SUGGESTED_CPU_ACCELERATION)
177 # Detect the architecture the compiler is targetting, detect
178 # acceleration possibilities on that hardware, suggest an acceleration
179 # to use if none is specified, and populate the cache option for CPU
181 include(gmxDetectTargetArchitecture)
182 gmx_detect_target_architecture()
183 include(gmxDetectAcceleration)
184 gmx_detect_acceleration(GMX_SUGGESTED_CPU_ACCELERATION)
185 set(GMX_CPU_ACCELERATION "@GMX_SUGGESTED_CPU_ACCELERATION@"
186 CACHE STRING "Accelerated CPU kernels. Pick one of: None, SSE2, SSE4.1, AVX_128_FMA, AVX_256, IBM_QPX, Sparc64_HPC_ACE")
188 set(GMX_FFT_LIBRARY "fftw3"
189 CACHE STRING "FFT library choices: fftw3,mkl,fftpack[built-in]")
190 option(GMX_BUILD_OWN_FFTW "Download and build FFTW 3 during the GROMACS build process, rather than fall back on the really slow fftpack." OFF)
191 mark_as_advanced(GMX_BUILD_OWN_FFTW)
192 option(GMX_DISABLE_FFTW_MEASURE
193 "Do not optimize FFTW setups (not needed with SSE)" OFF)
194 mark_as_advanced(GMX_DISABLE_FFTW_MEASURE)
195 set(GMX_QMMM_PROGRAM "none"
196 CACHE STRING "QM package choices: none,gaussian,mopac,gamess,orca")
197 option(GMX_BROKEN_CALLOC "Work around broken calloc()" OFF)
198 mark_as_advanced(GMX_BROKEN_CALLOC)
199 option(GMX_MPI_IN_PLACE "Enable MPI_IN_PLACE for MPIs that have it defined" ON)
200 mark_as_advanced(GMX_MPI_IN_PLACE)
201 option(GMX_LOAD_PLUGINS "Compile with plugin support, needed to read VMD supported file formats" ON)
202 mark_as_advanced(GMX_LOAD_PLUGINS)
204 option(GMX_OPENMP "Enable OpenMP-based multithreading" ON)
206 option(USE_VERSION_H "Generate development version string/information" ON)
207 mark_as_advanced(USE_VERSION_H)
209 option(GMX_DEFAULT_SUFFIX "Use default suffixes for GROMACS binaries and libs (_d for double, _mpi for MPI; rerun cmake after changing to see relevant options)" ON)
212 option(GMX_PREFER_STATIC_LIBS "When finding libraries prefer static archives (not available on non-*nix platforms and it will only work if static versions of external dependencies are available and found)!" OFF)
213 mark_as_advanced(GMX_PREFER_STATIC_LIBS)
216 option(GMX_CYCLE_SUBCOUNTERS "Enable cycle subcounters to get a more detailed cycle timings" OFF)
217 mark_as_advanced(GMX_CYCLE_SUBCOUNTERS)
219 option(GMX_SKIP_DEFAULT_CFLAGS "Don't automatically add suggested/required Compiler flags." OFF)
220 mark_as_advanced(GMX_SKIP_DEFAULT_CFLAGS)
222 ######################################################################
224 # These need to be done early (before further tests).
225 #####################################################################
227 # The cmake/Check{C,CXX}CompilerFlag.cmake files in the GROMACS distribution
228 # are used with permission from CMake v2.8.9 so that GROMACS can detect
229 # invalid options with the Intel Compilers.
230 # These files should be removed from the source tree when a CMake version that
231 # includes the features in question becomes required for building GROMACS.
232 include(CheckCCompilerFlag)
233 if(CMAKE_CXX_COMPILER_LOADED)
234 include(CheckCXXCompilerFlag)
237 # Get compiler version information, needs to be done early as check that depend
238 # on compiler verison follow below.
239 include(gmxGetCompilerInfo)
240 get_compiler_version()
242 # First exclude compilers known to not work with OpenMP although claim to support it:
243 # gcc 4.2.1 and gcc-llvm 4.2.1 (also claims to be 4.2.1) on Mac OS X
244 # This fixes redmine 900 and needs to run before OpenMP flags are set below.
245 if (CMAKE_SYSTEM_NAME STREQUAL "Darwin" AND
246 (CMAKE_COMPILER_IS_GNUCC AND C_COMPILER_VERSION AND C_COMPILER_VERSION VERSION_LESS 4.3))
247 message(STATUS "OpenMP multithreading not supported with gcc/llvm-gcc 4.2 on Mac OS X, disabled")
248 set(GMX_OPENMP OFF CACHE BOOL
249 "OpenMP multithreading not not supported with gcc/llvm-gcc 4.2 on Mac OS X, disabled!" FORCE)
252 # OpenMP check must come before other CFLAGS!
256 # CMake on Windows doesn't support linker flags passed to target_link_libraries
257 # (i.e. it treats /openmp as \openmp library file). Also, no OpenMP linker flags are needed.
258 if(NOT (WIN32 AND NOT CYGWIN))
259 if(CMAKE_COMPILER_IS_GNUCC AND GMX_PREFER_STATIC_OPENMP)
260 set(OpenMP_LINKER_FLAGS "-Wl,-static -lgomp -lrt -Wl,-Bdynamic -lpthread")
261 set(OpenMP_SHARED_LINKER_FLAGS "")
263 # Only set a linker flag if the user didn't set them manually
264 if(NOT DEFINED OpenMP_LINKER_FLAGS)
265 set(OpenMP_LINKER_FLAGS "${OpenMP_C_FLAGS}")
267 if(NOT DEFINED OpenMP_SHARED_LINKER_FLAGS)
268 set(OpenMP_SHARED_LINKER_FLAGS "${OpenMP_C_FLAGS}")
274 "The compiler you are using does not support OpenMP parallelism. This might hurt your performance a lot, in particular with GPUs. Try using a more recent version, or a different compiler. For now, we are proceeding by turning off OpenMP.")
275 set(GMX_OPENMP OFF CACHE STRING "Whether GROMACS will use OpenMP parallelism." FORCE)
283 # This variable should be used for additional compiler flags which are not
284 # generated in gmxCFlags nor are acceleration or MPI related.
285 set(EXTRA_C_FLAGS "")
287 # gcc 4.4.x is buggy and crashes when compiling some files with O3 and OpenMP on.
288 # Detect here whether applying a workaround is needed and will apply it later
289 # on the affected files.
290 include(gmxGCC44O3BugWorkaround)
291 gmx_check_gcc44_bug_workaround_needed(GMX_USE_GCC44_BUG_WORKAROUND)
293 # clang 3.0 is buggy for some unknown reason detected during adding
294 # the SSE2 group kernels for GROMACS 4.6. If we ever work out what
295 # that is, we should replace these tests with a compiler feature test,
296 # update GROMACS Redmine task #1039 and perhaps report a clang bug.
298 # In the meantime, until we require CMake 2.8.10 we cannot rely on it to detect
299 # the compiler version for us. So we need a manual check for clang 3.0.
300 include(gmxDetectClang30)
301 gmx_detect_clang_3_0(COMPILER_IS_CLANG_3_0)
302 if(COMPILER_IS_CLANG_3_0)
303 message(FATAL_ERROR "Your compiler is clang version 3.0, which is known to be buggy for GROMACS. Use a different compiler.")
306 # clang <=3.2 contains a bug that causes incorrect code to be generated for the
307 # vfmaddps instruction and therefore the bug is triggered with AVX_128_FMA.
308 # (see: http://llvm.org/bugs/show_bug.cgi?id=15040).
309 # We can work around this by not using the integrated assembler (except on OS X
310 # which has an outdated assembler that does not support AVX instructions).
311 if (${CMAKE_C_COMPILER_ID} MATCHES "Clang" AND C_COMPILER_VERSION VERSION_LESS "3.3")
312 set(GMX_USE_CLANG_FMA_BUG_WORKAROUND TRUE)
315 # GMX_CPU_ACCELERATION will not be set automatically until the second
316 # pass (which is not strictly guaranteed to occur), so putting this
317 # check here among logically-related tests is inefficient, but the
318 # potential loss is likely zero.
319 if(GMX_CPU_ACCELERATION STREQUAL "AVX_256"
320 AND CMAKE_COMPILER_IS_GNUCC
321 AND (C_COMPILER_VERSION VERSION_EQUAL "4.6.1"
322 OR CXX_COMPILER_VERSION VERSION_EQUAL "4.6.1"))
323 message(FATAL_ERROR "gcc 4.6.1 has buggy support for AVX, and GROMACS mdrun will not work. If you want simulation performance, use a more recent compiler. Otherwise, use GMX_CPU_ACCELERATION=SSE4.1")
324 # See http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49002
327 if (CMAKE_C_COMPILER_ID STREQUAL "PGI")
328 message(WARNING "All tested PGI compiler versions (up to 12.9.0) generate binaries which produce incorrect results, or even fail to compile Gromacs. Highly recommended to use a different compiler. If you choose to use PGI, make sure to run the regressiontests.")
331 if(CMAKE_C_COMPILER_ID MATCHES "Intel" AND C_COMPILER_VERSION VERSION_LESS "12.0.0")
332 message(WARNING "Intel compilers before 12.0.0 are not routinely tested, so there may be problems. Version 11.1 with SSE4.1 is known to produce incorrect results. It is highly recommended to use a more up-to-date compiler. If you choose to use this version, make sure you run the regressiontests.")
337 set(PKG_CFLAGS "${PKG_CFLAGS} -DGMX_DOUBLE")
339 if(GMX_SOFTWARE_INVSQRT)
340 set(PKG_CFLAGS "${PKG_CFLAGS} -DGMX_SOFTWARE_INVSQRT")
341 endif(GMX_SOFTWARE_INVSQRT)
345 ########################################################################
346 # Basic system tests (standard libraries, headers, functions, types) #
347 ########################################################################
348 include(CheckIncludeFiles)
349 check_include_files(string.h HAVE_STRING_H)
350 check_include_files(math.h HAVE_MATH_H)
351 check_include_files(limits.h HAVE_LIMITS_H)
352 check_include_files(memory.h HAVE_MEMORY_H)
353 check_include_files(unistd.h HAVE_UNISTD_H)
354 check_include_files(direct.h HAVE_DIRECT_H)
355 check_include_files(pwd.h HAVE_PWD_H)
356 check_include_files(stdint.h HAVE_STDINT_H)
357 check_include_files(stdlib.h HAVE_STDLIB_H)
358 check_include_files(pthread.h HAVE_PTHREAD_H)
359 check_include_files(dirent.h HAVE_DIRENT_H)
360 check_include_files(inttypes.h HAVE_INTTYPES_H)
361 check_include_files(regex.h HAVE_REGEX_H)
362 check_include_files(sys/types.h HAVE_SYS_TYPES_H)
363 check_include_files(sys/stat.h HAVE_SYS_STAT_H)
364 check_include_files(sys/time.h HAVE_SYS_TIME_H)
365 check_include_files(rpc/rpc.h HAVE_RPC_RPC_H)
366 check_include_files("rpc/rpc.h;rpc/xdr.h" HAVE_RPC_XDR_H)
367 check_include_files(io.h HAVE_IO_H)
368 check_include_files(sched.h HAVE_SCHED_H)
370 include(CheckFunctionExists)
371 check_function_exists(strcasecmp HAVE_STRCASECMP)
372 check_function_exists(strdup HAVE_STRDUP)
373 check_function_exists(vprintf HAVE_VPRINTF)
374 check_function_exists(memcmp HAVE_MEMCMP)
375 check_function_exists(posix_memalign HAVE_POSIX_MEMALIGN)
376 check_function_exists(memalign HAVE_MEMALIGN)
377 check_function_exists(_aligned_malloc HAVE__ALIGNED_MALLOC)
378 check_function_exists(gettimeofday HAVE_GETTIMEOFDAY)
379 check_function_exists(isnan HAVE_ISNAN)
380 check_function_exists(_isnan HAVE__ISNAN)
381 check_function_exists(fsync HAVE_FSYNC)
382 check_function_exists(_fileno HAVE__FILENO)
383 check_function_exists(fileno HAVE_FILENO)
384 check_function_exists(_commit HAVE__COMMIT)
385 check_function_exists(sigaction HAVE_SIGACTION)
386 check_function_exists(sysconf HAVE_SYSCONF)
387 check_function_exists(sched_setaffinity HAVE_SCHED_SETAFFINITY)
388 check_function_exists(sched_getaffinity HAVE_SCHED_GETAFFINITY)
389 check_function_exists(rsqrt HAVE_RSQRT)
390 check_function_exists(rsqrtf HAVE_RSQRTF)
391 check_function_exists(sqrtf HAVE_SQRTF)
393 include(CheckLibraryExists)
394 check_library_exists(m sqrt "" HAVE_LIBM)
395 check_library_exists(m cbrt "" HAVE_CBRT)
398 include(CheckTypeSize)
400 check_type_size("bool" SIZEOF_BOOL) # will also set HAVE_BOOL
401 check_type_size("int" SIZEOF_INT)
402 check_type_size("long int" SIZEOF_LONG_INT)
403 check_type_size("long long int" SIZEOF_LONG_LONG_INT)
404 check_type_size("off_t" SIZEOF_OFF_T)
405 check_type_size("void *" SIZEOF_VOIDP)
407 if (CMAKE_C_SIZEOF_DATA_PTR EQUAL 8)
409 else (CMAKE_C_SIZEOF_DATA_PTR EQUAL 8)
410 set(GMX_64_BIT FALSE)
411 endif (CMAKE_C_SIZEOF_DATA_PTR EQUAL 8)
413 # Check for some basic types that we *need*, so set these to int if they are not present
414 check_type_size(uid_t uid_t)
421 check_type_size(gid_t gid_t)
428 check_type_size(size_t size_t)
435 check_type_size(off_t off_t)
442 include(TestBigEndian)
443 test_big_endian(GMX_INTEGER_BIG_ENDIAN)
446 if(APPLE OR CYGWIN OR ${CMAKE_SYSTEM_NAME} MATCHES "Linux|.*BSD|GNU")
447 # Maybe Solaris should be here? Patch this if you know!
448 SET(SHARED_LIBS_DEFAULT ON)
449 elseif(WIN32 OR ${CMAKE_SYSTEM_NAME} MATCHES "BlueGene")
450 # Support for shared libs on native Windows is a bit new. Its
451 # default might change later if/when we sort things out. Also,
452 # Cray should go here. What variable value can detect it?
453 SET(SHARED_LIBS_DEFAULT OFF)
455 message(STATUS "Defaulting to building static libraries")
456 SET(SHARED_LIBS_DEFAULT OFF)
459 # Management of GROMACS options for specific toolchains should go
460 # here. Because the initial settings for some of the main options have
461 # already happened, but things like library detection and MPI compiler
462 # feature detection have not, the docstrings for any over-rides of
463 # GROMACS defaults or user settings will make sense. Also, any
464 # toolchain-related reasons for choosing whether to detect various
465 # things can be sorted out now, before the detection takes place.
466 if(${CMAKE_SYSTEM_NAME} MATCHES BlueGene)
467 include(gmxManageBlueGene)
470 if(UNIX AND GMX_PREFER_STATIC_LIBS AND SHARED_LIBS_DEFAULT)
471 if(BUILD_SHARED_LIBS)
472 # Warn the user about the combination. But don't overwrite the request.
473 message(WARNING "Searching for static libraries requested, and building shared Gromacs libraries requested. This might cause problems linking later.")
474 elseif(NOT DEFINED BUILD_SHARED_LIBS)
475 # Change default to OFF. Don't warn if it's already off.
476 message(WARNING "Searching for static libraries requested, so the GROMACS libraries will also be built statically (BUILD_SHARED_LIBS=OFF)")
477 set(SHARED_LIBS_DEFAULT OFF)
481 # By now, all tool chains should have spoken up if they care about
482 # the setting of SHARED_LIBS_DEFAULT.
483 option(BUILD_SHARED_LIBS "Enable shared libraries (can be problematic e.g. with MPI, or on some HPC systems)" ${SHARED_LIBS_DEFAULT})
485 ########################################################################
486 #Process MPI settings
487 ########################################################################
488 include(gmxManageMPI)
490 ########################################################################
491 # Find external packages #
492 ########################################################################
493 if(UNIX AND GMX_PREFER_STATIC_LIBS)
494 # On Linux .a is the static library suffix, on Mac OS X .lib can also
495 # be used, so we'll add both to the preference list.
496 SET(CMAKE_FIND_LIBRARY_SUFFIXES ".lib;.a" ${CMAKE_FIND_LIBRARY_SUFFIXES})
499 IF( WIN32 AND NOT CYGWIN)
500 if (NOT BUILD_SHARED_LIBS)
501 option(GMX_PREFER_STATIC_LIBS "When finding libraries prefer static system libraries (MT instead of MD)!" ON)
502 if(NOT GMX_PREFER_STATIC_LIBS)
503 message(WARNING "Shared system libraries requested, and static Gromacs libraries requested.")
506 option(GMX_PREFER_STATIC_LIBS "When finding libraries prefer static system libraries (MT instead of MD)!" OFF)
507 if(GMX_PREFER_STATIC_LIBS)
508 #this combination segfaults (illigal passing of file handles)
509 message(FATAL_ERROR "Static system libraries requested, and shared Gromacs libraries requested.")
511 add_definitions(-DUSE_VISIBILITY -DTMPI_USE_VISIBILITY)
512 set(PKG_CFLAGS "$PKG_CFLAGS -DUSE_VISIBILITY -DTMPI_USE_VISIBILITY")
514 mark_as_advanced(GMX_PREFER_STATIC_LIBS)
516 IF (GMX_PREFER_STATIC_LIBS)
517 #Only setting Debug and Release flags. Others configurations are current not used.
518 STRING(REPLACE /MD /MT CMAKE_C_FLAGS_RELEASE ${CMAKE_C_FLAGS_RELEASE})
519 STRING(REPLACE /MD /MT CMAKE_C_FLAGS_DEBUG ${CMAKE_C_FLAGS_DEBUG})
520 if(CMAKE_CXX_COMPILER_LOADED)
521 STRING(REPLACE /MD /MT CMAKE_CXX_FLAGS_RELEASE ${CMAKE_CXX_FLAGS_RELEASE})
522 STRING(REPLACE /MD /MT CMAKE_CXX_FLAGS_DEBUG ${CMAKE_CXX_FLAGS_DEBUG})
525 IF( CMAKE_C_COMPILER_ID MATCHES "Intel" )
526 if(BUILD_SHARED_LIBS) #not sure why incremental building with shared libs doesn't work
527 STRING(REPLACE "/INCREMENTAL:YES" "" CMAKE_SHARED_LINKER_FLAGS ${CMAKE_SHARED_LINKER_FLAGS})
532 option(GMX_GSL "Add support for gsl" OFF)
537 include_directories(${GSL_INCLUDE_DIR})
543 option(GMX_X11 "Use X window system" OFF)
546 # X11 includes/libraries are only set in the ngmx subdirectory!
548 message(WARNING "X11 include files and/or libraries were not found. Will not build the GROMACS X11-binaries, such as ngmx")
553 set(THREAD_MPI_LIB thread_mpi)
554 # Enable core threading facilities
555 tmpi_enable_core("${CMAKE_SOURCE_DIR}/include")
556 # Enable tMPI C++ support
559 # enable MPI functions
561 set(PKG_CFLAGS "${PKG_CFLAGS} -DGMX_THREAD_MPI")
563 endif(GMX_THREAD_MPI)
564 tmpi_get_source_list(THREAD_MPI_SRC)
567 # now that we have detected the dependencies, do the second configure pass
575 if(WIN32 AND NOT CYGWIN)
576 set(GMX_NATIVE_WINDOWS 1)
579 # only bother with finding git and using version.h if the source is a git repo
580 if(EXISTS "${CMAKE_SOURCE_DIR}/.git")
582 # We need at least git v1.5.3 be able to parse git's date output. If not
583 # found or the version is too small, we can't generate version information.
586 # Find out the git version
587 if(GIT_FOUND AND NOT GIT_VERSION)
588 execute_process(COMMAND ${GIT_EXECUTABLE} "--version"
589 OUTPUT_VARIABLE _exec_out
590 OUTPUT_STRIP_TRAILING_WHITESPACE)
591 string(REGEX REPLACE "git version (.*)" "\\1" GIT_VERSION ${_exec_out})
592 set(GIT_VERSION ${GIT_VERSION} CACHE STRING "Git version")
593 mark_as_advanced(GIT_VERSION)
596 if(NOT GIT_FOUND OR GIT_VERSION VERSION_LESS "1.5.3")
597 message("No compatible git version found, won't be able to generate proper development version information.")
598 set(USE_VERSION_H OFF)
602 set(USE_VERSION_H OFF)
605 ########################################################################
606 # Generate development version info for cache
607 ########################################################################
608 # set(GEN_VERSION_INFO_INTERNAL "ON")
609 # include(gmxGenerateVersionString)
611 ########################################################################
612 # Our own GROMACS tests
613 ########################################################################
615 add_definitions( -DHAVE_CONFIG_H )
616 include_directories(${CMAKE_BINARY_DIR}/src)
617 include_directories(${CMAKE_BINARY_DIR}/include)
618 include_directories(${CMAKE_SOURCE_DIR}/include)
620 include(gmxTestInlineASM)
621 gmx_test_inline_asm_gcc_x86(GMX_X86_GCC_INLINE_ASM)
623 include(gmxSetBuildInformation)
624 gmx_set_build_information()
626 # - the build system's CPU supports it
627 # - the acceleration is set to AVX as all AVX-capable CPUs support AVX (which
628 # at this point means that the user set it).
629 # Note: it's better to not use the later set value of GMX_CPU_ACCELERATION because
630 # it reflects the system's capability of both compiling and running AVX code.
631 # TODO: After merge with 5.0 one could implement a cache variable dependency
632 # such that GMX_USE_RDTSCP can change if GMX_CPU_ACCELERATION is changed to AVX
633 # after the first cmake pass.
634 if (BUILD_CPU_FEATURES MATCHES "rdtscp" OR GMX_CPU_ACCELERATION MATCHES "AVX")
635 set(GMX_USE_RDTSCP_DEFAULT_VALUE ON)
637 set(GMX_USE_RDTSCP_DEFAULT_VALUE OFF)
639 option(GMX_USE_RDTSCP "Use RDTSCP for better CPU-based timers (available on recent x86 CPUs; might need to be off when compiling for heterogeneous environments)" ${GMX_USE_RDTSCP_DEFAULT_VALUE})
640 mark_as_advanced(GMX_USE_RDTSCP)
642 # The timestep counter headers do not include config.h
643 add_definitions(-DHAVE_RDTSCP)
646 include(gmxTestFloatFormat)
647 gmx_test_float_format(GMX_FLOAT_FORMAT_IEEE754
648 GMX_IEEE754_BIG_ENDIAN_BYTE_ORDER
649 GMX_IEEE754_BIG_ENDIAN_WORD_ORDER)
651 include(gmxTestLargeFiles)
652 gmx_test_large_files(GMX_LARGEFILES)
654 include(gmxTestSignal)
655 gmx_test_sigusr1(HAVE_SIGUSR1)
657 include(gmxTestInline)
658 gmx_test_inline(INLINE_KEYWORD)
660 include(gmxTestRestrict)
661 gmx_test_restrict(RESTRICT_KEYWORD)
663 include(gmxTestPipes)
664 gmx_test_pipes(HAVE_PIPES)
666 include(gmxTestIsfinite)
667 gmx_test_isfinite(HAVE_ISFINITE)
668 gmx_test__isfinite(HAVE__ISFINITE)
669 gmx_test__finite(HAVE__FINITE)
672 gmx_test_xdr(GMX_SYSTEM_XDR)
673 if(NOT GMX_SYSTEM_XDR)
674 set(GMX_INTERNAL_XDR 1)
675 set(PKG_CFLAGS "${PKG_CFLAGS} -DGMX_INTERNAL_XDR")
676 endif(NOT GMX_SYSTEM_XDR)
678 # include avx test source, used if the AVX flags are set below
679 include(gmxTestAVXMaskload)
681 # Process nonbonded accelerated kernels settings
683 # Note that for the backward-compatible x86 SIMD architectures, the
684 # GMX_CPU_ACCELERATION determines the maximum level of the instruction
685 # set used (e.g. GMX_CPU_ACCLERATION=SSE4.1 implies
686 # SSE2). Accordingly, there are a set of CMake variables
687 # GMX_<arch>_<feature-set> that are exported to the C code to specify
688 # CPU features that should be used. This means that the logic for
689 # requiring such backward compatibility is all located here.
690 string(TOUPPER ${GMX_CPU_ACCELERATION} GMX_CPU_ACCELERATION)
691 if(${GMX_CPU_ACCELERATION} STREQUAL "NONE")
693 elseif(${GMX_CPU_ACCELERATION} STREQUAL "SSE2")
695 GMX_TEST_CFLAG(GNU_SSE2_CFLAG "-msse2" ACCELERATION_C_FLAGS)
696 if(NOT GNU_SSE2_CFLAG AND GMX_NATIVE_WINDOWS)
697 GMX_TEST_CFLAG(MSVC_SSE2_CFLAG "/arch:SSE2" ACCELERATION_C_FLAGS)
698 endif(NOT GNU_SSE2_CFLAG AND GMX_NATIVE_WINDOWS)
700 if (CMAKE_CXX_COMPILER_LOADED)
701 GMX_TEST_CXXFLAG(GNU_SSE2_CXXFLAG "-msse2" ACCELERATION_CXX_FLAGS)
702 if(NOT GNU_SSE2_CXXFLAG AND GMX_NATIVE_WINDOWS)
703 GMX_TEST_CXXFLAG(MSVC_SSE2_CXXFLAG "/arch:SSE2" ACCELERATION_CXX_FLAGS)
704 endif(NOT GNU_SSE2_CXXFLAG AND GMX_NATIVE_WINDOWS)
707 # We dont warn for lacking SSE2 flag support, since that is probably standard today.
709 # Only test the include after we have tried to add the correct flag for SSE2 support
710 check_include_file(emmintrin.h HAVE_EMMINTRIN_H ${ACCELERATION_C_FLAGS})
712 if(NOT HAVE_EMMINTRIN_H)
713 message(FATAL_ERROR "Cannot find emmintrin.h, which is required for SSE2 intrinsics support.")
714 endif(NOT HAVE_EMMINTRIN_H)
716 set(GMX_CPU_ACCELERATION_X86_SSE2 1)
717 # The user should not be able to set this orthogonally to the acceleration
719 if (NOT ACCELERATION_QUIETLY)
720 message(STATUS "Enabling SSE2 Gromacs acceleration")
723 elseif(${GMX_CPU_ACCELERATION} STREQUAL "SSE4.1")
725 GMX_TEST_CFLAG(GNU_SSE4_CFLAG "-msse4.1" ACCELERATION_C_FLAGS)
726 if (NOT GNU_SSE4_CFLAG AND GMX_NATIVE_WINDOWS)
727 GMX_TEST_CFLAG(MSVC_SSE4_CFLAG "/arch:SSE4.1" ACCELERATION_C_FLAGS)
728 endif(NOT GNU_SSE4_CFLAG AND GMX_NATIVE_WINDOWS)
729 if (NOT GNU_SSE4_CFLAG AND NOT MSVC_SSE4_CFLAG)
730 # Not surprising if we end up here! MSVC current does not support the SSE4.1 flag. However, it appears to accept SSE4.1
731 # intrinsics when SSE2 support is enabled, so we try that instead first.
732 if (GMX_NATIVE_WINDOWS)
733 GMX_TEST_CFLAG(MSVC_SSE2_CFLAG "/arch:SSE2" ACCELERATION_C_FLAGS)
734 message(WARNING "Neither SSE4.1 or SSE2 seems to be supported by your Windows compiler. Something is likely broken.")
736 message(WARNING "No C SSE4.1 flag found. Consider a newer compiler, or use SSE2 for slightly lower performance")
738 endif(NOT GNU_SSE4_CFLAG AND NOT MSVC_SSE4_CFLAG)
740 if (CMAKE_CXX_COMPILER_LOADED)
741 GMX_TEST_CXXFLAG(GNU_SSE4_CXXFLAG "-msse4.1" ACCELERATION_CXX_FLAGS)
742 if (NOT GNU_SSE4_CXXFLAG AND GMX_NATIVE_WINDOWS)
743 GMX_TEST_CXXFLAG(MSVC_SSE4_CXXFLAG "/arch:SSE4.1" ACCELERATION_CXX_FLAGS)
744 endif(NOT GNU_SSE4_CXXFLAG AND GMX_NATIVE_WINDOWS)
745 if (NOT GNU_SSE4_CXXFLAG AND NOT MSVC_SSE4_CXXFLAG)
746 message(WARNING "No C++ SSE4.1 flag found. Consider a newer compiler, or use SSE2 for slightly lower performance.")
747 # Not surprising if we end up here! MSVC current does not support the SSE4.1 flag. However, it appears to accept SSE4.1
748 # intrinsics when SSE2 support is enabled, so we try that instead.
749 if (GMX_NATIVE_WINDOWS)
750 GMX_TEST_CXXFLAG(MSVC_SSE2_CXXFLAG "/arch:SSE2" ACCELERATION_CXX_FLAGS)
752 endif(NOT GNU_SSE4_CXXFLAG AND NOT MSVC_SSE4_CXXFLAG)
755 # This must come after we have added the -msse4.1 flag on some platforms.
756 check_include_file(smmintrin.h HAVE_SMMINTRIN_H ${ACCELERATION_C_FLAGS})
758 if(NOT HAVE_SMMINTRIN_H)
759 message(FATAL_ERROR "Cannot find smmintrin.h, which is required for SSE4.1 intrinsics support.")
760 endif(NOT HAVE_SMMINTRIN_H)
762 set(GMX_CPU_ACCELERATION_X86_SSE4_1 1)
763 # The user should not be able to set this orthogonally to the acceleration
764 set(GMX_X86_SSE4_1 1)
766 if (NOT ACCELERATION_QUIETLY)
767 message(STATUS "Enabling SSE4.1 Gromacs acceleration")
770 if(CMAKE_C_COMPILER_ID MATCHES "Intel" AND C_COMPILER_VERSION VERSION_EQUAL "11.1")
771 message(FATAL_ERROR "You are using Intel compiler version 11.1, and that compiler is known to produce incorrect results with SSE4.1 acceleration. You need to use another compiler (e.g. icc 12 or newer) or different acceleration (probably slower simulations).")
773 elseif(${GMX_CPU_ACCELERATION} STREQUAL "AVX_128_FMA" OR ${GMX_CPU_ACCELERATION} STREQUAL "AVX_256")
775 # Set the AVX compiler flag for both these choices!
777 GMX_TEST_CFLAG(GNU_AVX_CFLAG "-mavx" ACCELERATION_C_FLAGS)
778 if (NOT GNU_AVX_CFLAG AND GMX_NATIVE_WINDOWS)
779 GMX_TEST_CFLAG(MSVC_AVX_CFLAG "/arch:AVX" ACCELERATION_C_FLAGS)
780 endif (NOT GNU_AVX_CFLAG AND GMX_NATIVE_WINDOWS)
781 if (NOT GNU_AVX_CFLAG AND NOT MSVC_AVX_CFLAG)
782 message(WARNING "No C AVX flag found. Consider a newer compiler, or try SSE4.1 (lower performance) giving the -DGMX_CPU_ACCELERATION=SSE4.1 to cmake.")
783 endif (NOT GNU_AVX_CFLAG AND NOT MSVC_AVX_CFLAG)
785 if (CMAKE_CXX_COMPILER_LOADED)
786 GMX_TEST_CXXFLAG(GNU_AVX_CXXFLAG "-mavx" ACCELERATION_CXX_FLAGS)
787 if (NOT GNU_AVX_CXXFLAG AND GMX_NATIVE_WINDOWS)
788 GMX_TEST_CXXFLAG(MSVC_AVX_CXXFLAG "/arch:AVX" ACCELERATION_CXX_FLAGS)
789 endif (NOT GNU_AVX_CXXFLAG AND GMX_NATIVE_WINDOWS)
790 if (NOT GNU_AVX_CXXFLAG AND NOT MSVC_AVX_CXXFLAG)
791 message(WARNING "No C++ AVX flag found. Consider a newer compiler, or try SSE4.1 (lower performance) giving the -DGMX_CPU_ACCELERATION=SSE4.1 to cmake.")
792 endif (NOT GNU_AVX_CXXFLAG AND NOT MSVC_AVX_CXXFLAG)
795 # Set the FMA4 flags (MSVC doesn't require any)
796 if(${GMX_CPU_ACCELERATION} STREQUAL "AVX_128_FMA" AND NOT MSVC)
797 GMX_TEST_CFLAG(GNU_FMA_CFLAG "-mfma4" ACCELERATION_C_FLAGS)
798 if (NOT GNU_FMA_CFLAG)
799 message(WARNING "No C FMA4 flag found. Consider a newer compiler, or try SSE4.1 (lower performance).")
800 endif(NOT GNU_FMA_CFLAG)
801 GMX_TEST_CFLAG(GNU_XOP_CFLAG "-mxop" ACCELERATION_C_FLAGS)
802 # No big deal if we do not have xop, so no point yelling warnings about it.
803 if (CMAKE_CXX_COMPILER_LOADED)
804 GMX_TEST_CXXFLAG(GNU_FMA_CXXFLAG "-mfma4" ACCELERATION_CXX_FLAGS)
805 if (NOT GNU_FMA_CXXFLAG)
806 message(WARNING "No C++ FMA flag found. Consider a newer compiler, or try SSE4.1 (lower performance).")
807 endif (NOT GNU_FMA_CXXFLAG)
808 GMX_TEST_CXXFLAG(GNU_XOP_CXXFLAG "-mxop" ACCELERATION_CXX_FLAGS)
809 # No big deal if we do not have xop, so no point yelling warnings about it.
813 # Only test the header after we have tried to add the flag for AVX support
814 check_include_file(immintrin.h HAVE_IMMINTRIN_H ${ACCELERATION_C_FLAGS})
816 if(NOT HAVE_IMMINTRIN_H)
817 message(FATAL_ERROR "Cannot find immintrin.h, which is required for AVX intrinsics support. Consider switching compiler.")
818 endif(NOT HAVE_IMMINTRIN_H)
820 if(${GMX_CPU_ACCELERATION} STREQUAL "AVX_256")
821 try_compile(TEST_AVX ${CMAKE_BINARY_DIR}
822 "${CMAKE_SOURCE_DIR}/cmake/TestAVX.c"
823 COMPILE_DEFINITIONS "${ACCELERATION_C_FLAGS}")
825 message(FATAL_ERROR "Cannot compile AVX intrinsics. Consider switching compiler.")
829 # GCC requires x86intrin.h for FMA support. MSVC 2010 requires intrin.h for FMA support.
830 check_include_file(x86intrin.h HAVE_X86INTRIN_H ${ACCELERATION_C_FLAGS})
831 check_include_file(intrin.h HAVE_INTRIN_H ${ACCELERATION_C_FLAGS})
833 # The user should not be able to set this orthogonally to the acceleration
834 set(GMX_X86_SSE4_1 1)
837 # But just enable one of the choices internally...
838 if(${GMX_CPU_ACCELERATION} STREQUAL "AVX_128_FMA")
839 set(GMX_CPU_ACCELERATION_X86_AVX_128_FMA 1)
840 set(GMX_X86_AVX_128_FMA 1)
841 if (NOT ACCELERATION_QUIETLY)
842 message(STATUS "Enabling 128-bit AVX Gromacs acceleration (with fused-multiply add)")
845 # We don't have the full compiler version string yet (BUILD_C_COMPILER),
846 # so we can't distinguish vanilla and Apple clang, but catering for AMD
847 # hackintoshes is not worth the effort.
848 if (APPLE AND ${CMAKE_C_COMPILER_ID} STREQUAL "Clang")
849 message(WARNING "Due to a known compiler bug, Clang up to version 3.2 (and Apple Clang up to version 4.1) produces incorrect code with AVX_128_FMA acceleration. As we can not work around this bug on OS X, you will have to select a different compiler or CPU acceleration.")
852 if (GMX_USE_CLANG_FMA_BUG_WORKAROUND)
853 # we assume that we have an external assembler that supports AVX
854 message(STATUS "Clang ${C_COMPILER_VERSION} detected, enabling FMA bug workaround")
855 set(EXTRA_C_FLAGS "${EXTRA_C_FLAGS} -no-integrated-as")
859 # If we are not doing AVX_128, it must be AVX_256...
860 set(GMX_CPU_ACCELERATION_X86_AVX_256 1)
861 set(GMX_X86_AVX_256 1)
862 if (NOT ACCELERATION_QUIETLY)
863 message(STATUS "Enabling 256-bit AVX Gromacs acceleration")
867 # Unfortunately gcc-4.5.2 and gcc-4.6.0 has a bug where they use the wrong datatype for the formal
868 # parameter of the mask for maskload/maskstore arguments. Check if this is present, since we can work around it.
869 gmx_test_avx_gcc_maskload_bug(${ACCELERATION_C_FLAGS} GMX_X86_AVX_GCC_MASKLOAD_BUG)
871 elseif(${GMX_CPU_ACCELERATION} STREQUAL "IBM_QPX")
872 try_compile(TEST_QPX ${CMAKE_BINARY_DIR}
873 "${CMAKE_SOURCE_DIR}/cmake/TestQPX.c")
876 message(WARNING "IBM QPX acceleration was selected. This will work, but SIMD-accelerated kernels are only available for the Verlet cut-off scheme. The plain C kernels that are used for the group cut-off scheme kernels will be slow, so please consider using the Verlet cut-off scheme.")
877 set(GMX_CPU_ACCELERATION_IBM_QPX 1)
879 message(FATAL_ERROR "Cannot compile the requested IBM QPX intrinsics. If you are compiling for BlueGene/Q with the XL compilers, use 'cmake .. -DCMAKE_TOOLCHAIN_FILE=Platform/BlueGeneQ-static-XL-C' to set up the tool chain.")
881 elseif(${GMX_CPU_ACCELERATION} STREQUAL "SPARC64_HPC_ACE")
882 set(GMX_CPU_ACCELERATION_SPARC64_HPC_ACE 1)
883 else(${GMX_CPU_ACCELERATION} STREQUAL "NONE")
884 MESSAGE(FATAL_ERROR "Unrecognized option for accelerated kernels: ${GMX_CPU_ACCELERATION}. Pick one of None, SSE2, SSE4.1, AVX_128_FMA, AVX_256, IBM_QPX, Sparc64_HPC_ACE")
885 endif(${GMX_CPU_ACCELERATION} STREQUAL "NONE")
886 set(ACCELERATION_QUIETLY TRUE CACHE INTERNAL "")
888 # Process QM/MM Settings
889 string(TOUPPER ${GMX_QMMM_PROGRAM} GMX_QMMM_PROGRAM)
890 if(${GMX_QMMM_PROGRAM} STREQUAL "GAUSSIAN")
891 set(GMX_QMMM_GAUSSIAN 1)
892 elseif(${GMX_QMMM_PROGRAM} STREQUAL "MOPAC")
893 set(GMX_QMMM_MOPAC 1)
894 elseif(${GMX_QMMM_PROGRAM} STREQUAL "GAMESS")
895 set(GMX_QMMM_GAMESS 1)
896 elseif(${GMX_QMMM_PROGRAM} STREQUAL "ORCA")
898 elseif(${GMX_QMMM_PROGRAM} STREQUAL "NONE")
900 else(${GMX_QMMM_PROGRAM} STREQUAL "GAUSSIAN")
901 MESSAGE(FATAL_ERROR "Invalid QM/MM program option: ${GMX_QMMM_PROGRAM}. Choose one of: Gaussian, Mopac, Gamess, Orca, None")
902 endif(${GMX_QMMM_PROGRAM} STREQUAL "GAUSSIAN")
904 # Process FFT library settings
905 string(TOUPPER ${GMX_FFT_LIBRARY} GMX_FFT_LIBRARY)
908 set(MKL_LIBRARIES_FORMAT_DESCRIPTION "Use full paths to library files, in the right order, and separated by semicolons.")
909 set(MKL_LIBRARIES "" CACHE STRING "List of libraries for linking to MKL. Only used with GMX_FFT_LIBRARY=mkl. ${MKL_LIBRARIES_FORMAT_DESCRIPTION}")
910 set(MKL_INCLUDE_DIR "" CACHE PATH "Path to mkl.h (non-inclusive). Only used with GMX_FFT_LIBRARY=mkl.")
911 mark_as_advanced(FORCE MKL_LIBRARIES)
912 mark_as_advanced(FORCE MKL_INCLUDE_DIR)
913 if(${GMX_FFT_LIBRARY} STREQUAL "FFTW3")
920 if(GMX_BUILD_OWN_FFTW)
921 add_subdirectory(src/contrib/fftw)
923 find_package(FFTW COMPONENTS ${FFTW})
926 string(TOUPPER "${FFTW}" FFTW)
927 if(NOT ${FFTW}_FOUND)
928 MESSAGE(FATAL_ERROR "Cannot find FFTW 3 (with correct precision - libfftw3f for single-precision GROMACS or libfftw3 for double-precision GROMACS). Either choose the right precision, choose another FFT(W) library (-DGMX_FFT_LIBRARY), enable the advanced option to let GROMACS build FFTW 3 for you (-DGMX_BUILD_OWN_FFTW=ON) , or use the really slow GROMACS built-in fftpack library (-DGMX_FFT_LIBRARY=fftpack).")
931 set(PKG_FFT "${${FFTW}_PKG}")
932 include_directories(${${FFTW}_INCLUDE_DIRS})
933 set(FFT_LIBRARIES ${${FFTW}_LIBRARIES})
936 if ((${GMX_CPU_ACCELERATION} MATCHES "SSE" OR ${GMX_CPU_ACCELERATION} MATCHES "AVX") AND NOT ${FFTW}_HAVE_SIMD)
937 message(WARNING "The fftw library found is compiled without SIMD support, which makes it slow. Consider recompiling it or contact your admin")
940 if((${GMX_CPU_ACCELERATION} MATCHES "SSE" OR ${GMX_CPU_ACCELERATION} MATCHES "AVX") AND ${FFTW}_HAVE_AVX)
941 # If we're not doing CPU acceleration, we don't care about FFTW performance on x86 either
942 message(WARNING "The FFTW library was compiled with --enable-avx to enable AVX SIMD instructions. That might sound like a good idea for your processor, but for FFTW versions up to 3.3.3, these are slower than the SSE/SSE2 SIMD instructions for the way GROMACS uses FFTs. Limitations in the way FFTW allows GROMACS to measure performance make it awkward for either GROMACS or FFTW to make the decision for you based on runtime performance. You should compile a different FFTW library with --enable-sse or --enable-sse2. If you have a more recent FFTW, you may like to compare the performance of GROMACS with FFTW libraries compiled with and without --enable-avx. However, the GROMACS developers do not really expect the FFTW AVX optimization to help, because the performance is limited by memory access, not computation.")
945 if(NOT "${GMX_FFT_LIBRARY}" STREQUAL "${GMX_FFT_LIBRARY_PREVIOUS_VALUE}")
946 MESSAGE(STATUS "Using external FFT library - FFTW3")
948 elseif(${GMX_FFT_LIBRARY} STREQUAL "MKL")
949 # Intel 11 and up makes life somewhat easy if you just want to use
950 # all their stuff. It's not easy if you only want some of their
952 if (CMAKE_C_COMPILER_ID MATCHES "Intel" AND C_COMPILER_VERSION VERSION_GREATER "11")
953 # The next line takes care of everything for MKL
955 set(FFT_LINKER_FLAGS "/Qmkl=sequential")
957 set(FFT_LINKER_FLAGS "-mkl=sequential")
959 # Some versions of icc require this in order that mkl.h can be
960 # found at compile time.
961 set(EXTRA_C_FLAGS "${EXTRA_C_FLAGS} ${FFT_LINKER_FLAGS}")
963 set(MKL_ERROR_MESSAGE "Make sure you have configured your compiler so that ${FFT_LINKER_FLAGS} will work.")
965 # The user will have to provide the set of magic libraries in
966 # MKL_LIBRARIES, which we cache (non-advanced), so that they
967 # don't have to keep specifying it, and can easily see that
968 # CMake is still using that information.
969 set(MKL_LIBRARIES "${MKL_LIBRARIES}" CACHE STRING "User-specified libraries for linking to MKL")
970 mark_as_advanced(CLEAR MKL_LIBRARIES)
971 include_directories(${MKL_INCLUDE_DIR})
972 mark_as_advanced(CLEAR MKL_INCLUDE_DIR)
973 set(FFT_LIBRARIES "${MKL_LIBRARIES}")
974 set(MKL_ERROR_MESSAGE "The include path to mkl.h in MKL_INCLUDE_DIR, and the link libraries in MKL_LIBRARIES=${MKL_LIBRARIES} need to match what the MKL documentation says you need for your system. ${MKL_LIBRARIES_FORMAT_DESCRIPTION}")
975 # Convert the semi-colon separated list to a list of
976 # command-line linker arguments so that code using our
977 # pkgconfig setup can use it.
978 string(REGEX REPLACE ";" " " PKG_FFT_LIBS "${MKL_LIBRARIES}")
981 # Check MKL works. If we were in a non-global scope, we wouldn't
982 # have to play nicely.
983 set(old_CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
984 set(CMAKE_REQUIRED_FLAGS "${FFT_LINKER_FLAGS}")
985 set(old_CMAKE_REQUIRED_LIBRARIES "${CMAKE_REQUIRED_LIBRARIES}")
986 set(CMAKE_REQUIRED_LIBRARIES "${FFT_LIBRARIES}")
988 check_function_exists(DftiCreateDescriptor TEST_MKL)
990 set(CMAKE_REQUIRED_FLAGS "${old_CMAKE_REQUIRED_FLAGS}")
991 set(CMAKE_REQUIRED_LIBRARIES "${old_CMAKE_REQUIRED_LIBRARIES}")
994 # Hack to help the user vary MKL settings until they work.
995 # TODO Make this logic more useful.
996 unset(TEST_MKL CACHE)
997 message(FATAL_ERROR "Linking with MKL was requested, but was not successful. ${MKL_ERROR_MESSAGE}")
1000 # Set variables to signal that we have MKL available and should use it for FFTs.
1004 if(NOT "${GMX_FFT_LIBRARY}" STREQUAL "${GMX_FFT_LIBRARY_PREVIOUS_VALUE}")
1005 MESSAGE(STATUS "Using external FFT library - Intel MKL")
1008 #elseif(${GMX_FFT_LIBRARY} STREQUAL "ACML")
1009 # MESSAGE(STATUS "Using external FFT library - AMD core math library")
1010 # set(GMX_FFT_ACML 1)
1011 elseif(${GMX_FFT_LIBRARY} STREQUAL "FFTPACK")
1012 set(GMX_FFT_FFTPACK 1)
1013 if(NOT "${GMX_FFT_LIBRARY}" STREQUAL "${GMX_FFT_LIBRARY_PREVIOUS_VALUE}")
1014 MESSAGE(STATUS "Using internal FFT library - fftpack")
1016 else(${GMX_FFT_LIBRARY} STREQUAL "FFTW3")
1017 MESSAGE(FATAL_ERROR "Invalid FFT library setting: ${GMX_FFT_LIBRARY}. Choose one of: fftw3, mkl, fftpack")
1018 endif(${GMX_FFT_LIBRARY} STREQUAL "FFTW3")
1019 set(GMX_FFT_LIBRARY_PREVIOUS_VALUE ${GMX_FFT_LIBRARY} CACHE INTERNAL "Previous value for GMX_FFT_LIBRARY, so that we can detect when it changes.")
1021 # enable threaded fftw3 if we've found it
1022 if(FFTW3_THREADS OR FFTW3F_THREADS)
1023 add_definitions(-DFFT5D_FFTW_THREADS)
1026 include(gmxManageLinearAlgebraLibraries)
1028 set(GMX_USE_PLUGINS OFF CACHE INTERNAL "Whether GROMACS will really try to compile support for VMD plugins")
1030 if(GMX_LOAD_PLUGINS)
1031 if(CYGWIN OR NOT WIN32)
1032 # Native Windows does not have, nor need dlopen
1033 # Note that WIN32 is set with Cygwin, but Cygwin needs dlopen to use plug-ins
1034 include(gmxTestdlopen)
1035 gmx_test_dlopen(HAVE_DLOPEN)
1038 # so, should we use plug-ins?
1039 if((WIN32 AND NOT CYGWIN) OR (HAVE_DLOPEN AND BUILD_SHARED_LIBS))
1042 "Found the ability to use plug-ins when building shared libaries, "
1043 "so will compile to use plug-ins (e.g. to read VMD-supported file "
1046 if(NOT GMX_VMD_PLUGIN_PATH)
1049 set(GMX_USE_PLUGINS ON)
1050 list(APPEND GMX_EXTRA_LIBRARIES ${CMAKE_DL_LIBS}) # magic cross-platform pre-set variable for dlopen library
1051 set(PKG_DL_LIBS "-l${CMAKE_DL_LIBS}")
1055 endif(GMX_LOAD_PLUGINS)
1056 set(VMD_QUIETLY TRUE CACHE INTERNAL "")
1058 if(EXISTS "${CMAKE_SOURCE_DIR}/admin/.isreposource")
1059 if(NOT CMAKE_CROSSCOMPILING)
1060 option(GMX_BUILD_MANPAGES "Build man pages" ON)
1062 message(STATUS "Building the man pages is not available when "
1063 "cross-compiling the developer version from git")
1066 #make sure source package contains all man pages
1067 if(NOT EXISTS "${CMAKE_SOURCE_DIR}/man/man1/ngmx.1")
1068 message(FATAL_ERROR "Man pages are missing from source package.")
1071 mark_as_advanced(GMX_BUILD_MANPAGES)
1073 # Math and thread libraries must often come after all others when linking...
1075 list(APPEND GMX_EXTRA_LIBRARIES m)
1077 if (${CMAKE_SYSTEM_NAME} MATCHES "BlueGene")
1078 check_library_exists(mass_simd atan2f4 "" HAVE_MASS_SIMD)
1080 list(APPEND GMX_EXTRA_LIBRARIES mass_simd)
1082 message(FATAL_ERROR "Could not link to the SIMD version of the IBM MASS library. Please adjust your CMAKE_PREFIX_PATH to contain it")
1087 option(GMX_NACL "Configure for Native Client builds" OFF)
1089 list(APPEND GMX_EXTRA_LIBRARIES nosys)
1090 set(GMX_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -lnosys")
1092 set(GMX_NO_RENAME 1)
1094 mark_as_advanced(GMX_NACL)
1097 set(COREWRAP_INCLUDE_DIR "${CMAKE_SOURCE_DIR}/../corewrap" CACHE STRING
1098 "Path to swindirect.h")
1099 include_directories(${COREWRAP_INCLUDE_DIR})
1100 set_property(CACHE GMX_COOL_QUOTES PROPERTY VALUE OFF)
1103 # # # # # # # # # # NO MORE TESTS AFTER THIS LINE! # # # # # # # # # # #
1104 # these are set after everything else
1105 if (NOT GMX_SKIP_DEFAULT_CFLAGS)
1106 set(CMAKE_C_FLAGS "${ACCELERATION_C_FLAGS} ${MPI_COMPILE_FLAGS} ${EXTRA_C_FLAGS} ${CMAKE_C_FLAGS}")
1107 set(CMAKE_CXX_FLAGS "${ACCELERATION_CXX_FLAGS} ${MPI_COMPILE_FLAGS} ${CMAKE_CXX_FLAGS}")
1108 set(CMAKE_EXE_LINKER_FLAGS "${FFT_LINKER_FLAGS} ${MPI_LINKER_FLAGS} ${CMAKE_EXE_LINKER_FLAGS}")
1109 set(CMAKE_SHARED_LINKER_FLAGS "${MPI_LINKER_FLAGS} ${CMAKE_SHARED_LINKER_FLAGS}")
1111 message("Recommended flags which are not added because GMX_SKIP_DEFAULT_CFLAGS=yes:")
1112 message("CMAKE_C_FLAGS: ${ACCELERATION_C_FLAGS} ${MPI_COMPILE_FLAGS} ${EXTRA_C_FLAGS} ${GMXC_CFLAGS}")
1113 message("CMAKE_C_FLAGS_RELEASE: ${GMXC_CFLAGS_RELEASE}")
1114 message("CMAKE_C_FLAGS_DEBUG: ${GMXC_CFLAGS_DEBUG}")
1115 if(CMAKE_CXX_COMPILER_LOADED)
1116 message("CMAKE_CXX_FLAGS: ${ACCELERATION_CXX_FLAGS} ${MPI_COMPILE_FLAGS} ${GMXC_CXXFLAGS}")
1117 message("CMAKE_CXX_FLAGS_RELEASE: ${GMXC_CXXFLAGS_RELEASE}")
1118 message("CMAKE_CXX_FLAGS_DEBUG: ${GMXC_CXXFLAGS_DEBUG}")
1120 message("CMAKE_EXE_LINKER_FLAGS: ${FFT_LINKER_FLAGS} ${MPI_LINKER_FLAGS}")
1121 message("CMAKE_SHARED_LINKER_FLAGS: ${MPI_LINKER_FLAGS}")
1125 #Unset all OpenMP flags in case OpenMP was disabled either by the user
1126 #or because it was only partially detected (e.g. only for C but not C++ compiler)
1127 unset(OpenMP_C_FLAGS CACHE)
1128 unset(OpenMP_CXX_FLAGS CACHE)
1129 unset(OpenMP_LINKER_FLAGS CACHE)
1130 unset(OpenMP_SHARED_LINKER_FLAGS)
1132 set(PKG_CFLAGS "${PKG_CFLAGS} ${OpenMP_C_FLAGS}")
1134 ######################################
1135 # Output compiler and CFLAGS used
1136 ######################################
1137 get_compiler_info(C BUILD_C_COMPILER BUILD_CFLAGS)
1138 if (CMAKE_CXX_COMPILER_LOADED)
1139 get_compiler_info(CXX BUILD_CXX_COMPILER BUILD_CXXFLAGS)
1142 get_cuda_compiler_info(CUDA_NVCC_COMPILER_INFO CUDA_NVCC_COMPILER_FLAGS)
1146 ########################################################################
1147 # Specify install locations and which subdirectories to process #
1148 ########################################################################
1149 if (GMX_USE_RELATIVE_INSTALL_PATH)
1150 set(GMX_INSTALL_PREFIX "" CACHE STRING "Prefix gets appended to CMAKE_INSTALL_PREFIX. For cpack it sets the root folder of the archive.")
1151 mark_as_advanced(GMX_INSTALL_PREFIX)
1153 set(GMX_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}/")
1156 if ( NOT DEFINED GMXLIB )
1159 set(LIB_INSTALL_DIR "${GMX_INSTALL_PREFIX}${GMXLIB}")
1160 set(BIN_INSTALL_DIR ${GMX_INSTALL_PREFIX}bin)
1161 set(DATA_INSTALL_DIR ${GMX_INSTALL_PREFIX}share/gromacs)
1162 set(MAN_INSTALL_DIR ${GMX_INSTALL_PREFIX}share/man)
1163 set(INCL_INSTALL_DIR ${GMX_INSTALL_PREFIX}include)
1165 set(GMXLIBDIR ${DATA_INSTALL_DIR}/top)
1167 ########################################################################
1168 # Set up binary and library suffixing
1169 ########################################################################
1170 set(GMX_BINARY_SUFFIX "" CACHE STRING "Suffix for GROMACS binaries (default: _d for double, _mpi for MPI, _mpi_d for MPI and double).")
1171 set(GMX_LIBS_SUFFIX ""
1172 CACHE STRING "Suffix for GROMACS libs (default: _d for double, _mpi for MPI, _mpi_d for MPI and double).")
1173 if (GMX_DEFAULT_SUFFIX)
1174 set(GMX_BINARY_SUFFIX "")
1175 set(GMX_LIBS_SUFFIX "")
1177 set(GMX_BINARY_SUFFIX "_mpi")
1178 set(GMX_LIBS_SUFFIX "_mpi")
1181 set (GMX_BINARY_SUFFIX "${GMX_BINARY_SUFFIX}_d")
1182 set (GMX_LIBS_SUFFIX "${GMX_LIBS_SUFFIX}_d")
1184 mark_as_advanced(FORCE GMX_BINARY_SUFFIX GMX_LIBS_SUFFIX)
1185 if (NOT SUFFIX_QUIETLY)
1186 message(STATUS "Using default binary suffix: \"${GMX_BINARY_SUFFIX}\"")
1187 message(STATUS "Using default library suffix: \"${GMX_LIBS_SUFFIX}\"")
1188 endif (NOT SUFFIX_QUIETLY)
1189 else(GMX_DEFAULT_SUFFIX)
1190 mark_as_advanced(CLEAR GMX_BINARY_SUFFIX GMX_LIBS_SUFFIX)
1191 if (NOT SUFFIX_QUIETLY)
1192 message(STATUS "Using manually set binary suffix: \"${GMX_BINARY_SUFFIX}\"")
1193 message(STATUS "Using manually set library suffix: \"${GMX_LIBS_SUFFIX}\"")
1194 endif (NOT SUFFIX_QUIETLY)
1195 endif(GMX_DEFAULT_SUFFIX)
1196 set(SUFFIX_QUIETLY TRUE CACHE INTERNAL "")
1198 ################################################################
1199 # Shared library settings
1200 ################################################################
1201 if((NOT CMAKE_SYSTEM_NAME STREQUAL "Darwin") OR ((CMAKE_SYSTEM_VERSION VERSION_GREATER 8.0) AND (CMAKE_VERSION VERSION_GREATER 2.8.11)))
1202 set(CMAKE_SKIP_BUILD_RPATH FALSE)
1203 set(CMAKE_BUILD_WITH_INSTALL_RPATH FALSE)
1204 set(CMAKE_INSTALL_RPATH "\\\$ORIGIN/../${GMXLIB}")
1205 set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
1206 set(CMAKE_MACOSX_RPATH 1)
1208 # We are on Darwin/OSX, and cmake cannot handle proper RPATHs
1209 set(CMAKE_INSTALL_NAME_DIR "${LIB_INSTALL_DIR}")
1212 #COPYING file: Only necessary for binary distributions.
1213 #Simpler to always install.
1214 install(FILES COPYING DESTINATION ${DATA_INSTALL_DIR} COMPONENT data)
1216 add_subdirectory(share)
1217 add_subdirectory(include)
1218 add_subdirectory(src)
1219 add_subdirectory(scripts)
1221 # Issue a warning if NVIDIA GPUs were detected, but CUDA was not found.
1222 # Don't bother the user after the first configure pass.
1223 if ((CUDA_NOTFOUND_AUTO AND GMX_DETECT_GPU_AVAILABLE) AND NOT GMX_GPU_DETECTION_DONE)
1224 message(WARNING "${CUDA_NOTFOUND_MESSAGE}")
1225 unset(CUDA_NOTFOUND_AUTO)
1226 unset(CUDA_NOTFOUND_MESSAGE)
1228 set(GMX_GPU_DETECTION_DONE TRUE CACHE INTERNAL "Whether GPU detection has already been done")
1230 #######################
1232 #######################
1234 "${CMAKE_CURRENT_SOURCE_DIR}/cmake/cmake_uninstall.cmake.in"
1235 "${CMAKE_CURRENT_BINARY_DIR}/cmake/cmake_uninstall.cmake"
1237 ###########################
1238 ADD_CUSTOM_TARGET(uninstall
1239 "${CMAKE_COMMAND}" -P
1240 "${CMAKE_CURRENT_BINARY_DIR}/cmake/cmake_uninstall.cmake")
1241 ###########################
1243 ########################################################################
1245 ########################################################################
1248 mark_as_advanced(BUILD_TESTING)
1249 #gmxtests target builds all binaries required for running gmxtest
1250 add_custom_target(gmxtests DEPENDS grompp mdrun pdb2gmx gmxcheck editconf)
1253 add_subdirectory(tests)
1254 if(REGRESSIONTEST_PATH)
1255 #check target builds all to run tests and the runs tests
1256 add_custom_target(check COMMAND ${CMAKE_CTEST_COMMAND} --output-on-failure)
1257 add_dependencies(check gmxtests)
1259 add_custom_target(check COMMAND ${CMAKE_COMMAND} -E echo "WARNING: No tests are run. Running the tests requires either of the cmake variables REGRESSIONTEST_PATH or REGRESSIONTEST_DOWNLOAD to be set.")