2 # This file is part of the GROMACS molecular simulation package.
4 # Copyright (c) 2009,2010,2011,2012,2013,2014,2015,2016,2017,2018,2019, by the GROMACS development team, led by
5 # Mark Abraham, David van der Spoel, Berk Hess, and Erik Lindahl,
6 # and including many others, as listed in the AUTHORS file in the
7 # top-level source directory and at http://www.gromacs.org.
9 # GROMACS is free software; you can redistribute it and/or
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11 # as published by the Free Software Foundation; either version 2.1
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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
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24 # If you want to redistribute modifications to GROMACS, please
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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 3.9.6)
36 if(POLICY CMP0074) #3.12
37 cmake_policy(SET CMP0074 NEW)
40 # CMake modules/macros are in a subdirectory to keep this file cleaner
41 # This needs to be set before project() in order to pick up toolchain files
42 list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake ${CMAKE_CURRENT_SOURCE_DIR}/cmake/Platform)
46 set(CMAKE_CXX_STANDARD 14)
47 set(CMAKE_CXX_STANDARD_REQUIRED ON)
48 set(CMAKE_CXX_EXTENSIONS OFF)
50 include(gmxManageCcache)
52 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
53 set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
54 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
56 find_package(LibStdCpp)
58 # Set up common version variables, as well as general information about
59 # the build tree (whether the build is from a source package or from a git
60 # repository). Also declares a few functions that will be used for generating
61 # version info files later.
62 include(gmxBuildTreeInfo)
63 include(gmxVersionInfo)
65 if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT AND UNIX)
66 set(CMAKE_INSTALL_PREFIX "/usr/local/gromacs" CACHE STRING "Installation prefix (installation will need write permissions here)" FORCE)
68 if("${CMAKE_INSTALL_PREFIX}" STREQUAL "${CMAKE_BINARY_DIR}")
69 message(FATAL_ERROR "GROMACS cannot be installed into the build tree, choose a different location for CMAKE_INSTALL_PREFIX")
72 include(gmxBuildTypeReference)
73 include(gmxBuildTypeProfile)
74 include(gmxBuildTypeTSAN)
75 include(gmxBuildTypeASAN)
76 include(gmxBuildTypeMSAN)
77 include(gmxBuildTypeReleaseWithAssert)
79 if(NOT CMAKE_BUILD_TYPE)
80 set(CMAKE_BUILD_TYPE "Release" CACHE STRING "Choose the type of build, options are: Debug Release RelWithDebInfo MinSizeRel Reference RelWithAssert Profile TSAN ASAN MSAN." FORCE)
81 # Set the possible values of build type for cmake-gui
82 set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "Debug" "Release"
83 "MinSizeRel" "RelWithDebInfo" "Reference" "RelWithAssert" "Profile" "TSAN" "ASAN" "MSAN")
85 if(CMAKE_CONFIGURATION_TYPES)
86 # Add appropriate GROMACS-specific build types for the Visual
87 # Studio generator (Debug, Release, MinSizeRel and RelWithDebInfo
88 # are already present by default).
89 list(APPEND CMAKE_CONFIGURATION_TYPES "RelWithAssert" "Reference")
90 list(REMOVE_DUPLICATES CMAKE_CONFIGURATION_TYPES)
91 set(CMAKE_CONFIGURATION_TYPES "${CMAKE_CONFIGURATION_TYPES}" CACHE STRING
92 "List of configuration types"
95 set(build_types_with_explicit_flags RELEASE DEBUG RELWITHDEBINFO RELWITHASSERT MINSIZEREL PROFILE)
97 set_property(GLOBAL PROPERTY FIND_LIBRARY_USE_LIB64_PATHS ON)
99 include(gmxCTestUtilities)
102 include(gmxCPackUtilities)
105 # Variables that accumulate stuff influencing the installed headers
106 set(INSTALLED_HEADER_INCLUDE_DIRS "")
107 set(INSTALLED_HEADER_DEFINITIONS "")
109 ########################################################################
110 # Global non-cache variables for implementing the build system
111 ########################################################################
113 # These variables collect libraries that GROMACS requires for
114 # linking. They should be appended to with list(APPEND ${name}
115 # new-library) calls. They are:
116 # - Libraries that are required for libgromacs (only)
117 set(GMX_EXTRA_LIBRARIES "")
118 # - Libraries that are required for all code in the repository
119 set(GMX_COMMON_LIBRARIES "")
120 # - Libraries that all code linked against libgromacs needs
121 # (i.e., something that is exposed in installed headers).
122 set(GMX_PUBLIC_LIBRARIES "")
124 ########################################################################
125 # Check and warn if cache generated on a different host is being reused
126 ########################################################################
128 execute_process(COMMAND hostname
129 OUTPUT_VARIABLE TMP_HOSTNAME
130 OUTPUT_STRIP_TRAILING_WHITESPACE)
131 if(GMX_BUILD_HOSTNAME AND NOT "${GMX_BUILD_HOSTNAME}" STREQUAL "${TMP_HOSTNAME}")
133 The CMake cache, probably generated on a different host (${GMX_BUILD_HOSTNAME}),
134 is being reused! This could lead to inconsistencies; therefore, it is
135 recommended to regenerate the cache!")
137 set(GMX_BUILD_HOSTNAME "${TMP_HOSTNAME}" CACHE INTERNAL
138 "Hostname of the machine where the cache was generated.")
141 ########################################################################
142 # Detect architecture before setting options so we can alter defaults
143 ########################################################################
144 # Detect the architecture the compiler is targetting, detect
145 # SIMD instructions possibilities on that hardware, suggest SIMD instruction set
146 # to use if none is specified, and populate the cache option for CPU
148 include(gmxDetectTargetArchitecture)
149 gmx_detect_target_architecture()
151 ########################################################################
152 # User input options #
153 ########################################################################
154 include(gmxOptionUtilities)
156 set(CMAKE_PREFIX_PATH "" CACHE STRING "Extra locations to search for external libraries and tools (give directory without lib, bin, or include)")
158 # Fujitsu only has SIMD in double precision, so this will be faster
159 gmx_set_boolean(GMX_DOUBLE_DEFAULT GMX_TARGET_FUJITSU_SPARC64)
160 option(GMX_DOUBLE "Use double precision (much slower, use only if you really need it)" ${GMX_DOUBLE_DEFAULT})
161 option(GMX_RELAXED_DOUBLE_PRECISION "Accept single precision 1/sqrt(x) when using Fujitsu HPC-ACE SIMD" OFF)
162 mark_as_advanced(GMX_RELAXED_DOUBLE_PRECISION)
164 option(GMX_MPI "Build a parallel (message-passing) version of GROMACS" OFF)
165 option(GMX_THREAD_MPI "Build a thread-MPI-based multithreaded version of GROMACS (not compatible with MPI)" ON)
166 gmx_dependent_option(
168 "Enable MPI_IN_PLACE for MPIs that have it defined"
171 mark_as_advanced(GMX_MPI_IN_PLACE)
173 option(GMX_MIMIC "Enable MiMiC QM/MM interface (CPMD is required)" OFF)
175 option(GMX_FAHCORE "Build a library with mdrun functionality" OFF)
176 mark_as_advanced(GMX_FAHCORE)
178 option(GMX_COOL_QUOTES "Enable GROMACS cool quotes" ON)
179 mark_as_advanced(GMX_COOL_QUOTES)
180 gmx_add_cache_dependency(GMX_COOL_QUOTES BOOL "NOT GMX_FAHCORE" OFF)
182 option(GMX_USE_OPENCL "Enable OpenCL acceleration" OFF)
184 # The earliest version of the CUDA toolkit that supports c++14 is 9.0
185 set(REQUIRED_CUDA_VERSION 9.0)
186 set(REQUIRED_CUDA_COMPUTE_CAPABILITY 3.0)
188 # OpenCL required version: 1.2 or newer
189 set(REQUIRED_OPENCL_MIN_VERSION_MAJOR 1)
190 set(REQUIRED_OPENCL_MIN_VERSION_MINOR 2)
191 set(REQUIRED_OPENCL_MIN_VERSION ${REQUIRED_OPENCL_MIN_VERSION_MAJOR}.${REQUIRED_OPENCL_MIN_VERSION_MINOR})
193 if(NOT GMX_USE_OPENCL)
194 # CUDA detection is done only if GMX_USE_OPENCL is OFF.
195 include(gmxManageGPU)
196 set(GMX_USE_CUDA ${GMX_GPU})
198 set(GMX_GPU_ACCELERATION_FRAMEWORK "GMX_GPU_CUDA")
200 set(GMX_GPU_ACCELERATION_FRAMEWORK "GMX_GPU_NONE")
203 #Now the OpenCL path (for both AMD and NVIDIA)
205 include(gmxManageOpenCL)
206 set(GMX_GPU_ACCELERATION_FRAMEWORK "GMX_GPU_OPENCL")
208 message(FATAL_ERROR "OpenCL requested but GPU option is not enabled (try -DGMX_GPU=on) ")
212 gmx_option_multichoice(
214 "SIMD instruction set for CPU kernels and compiler optimization"
216 AUTO None SSE2 SSE4.1 AVX_128_FMA AVX_256 AVX2_256 AVX2_128 AVX_512 AVX_512_KNL MIC ARM_NEON ARM_NEON_ASIMD IBM_VMX IBM_VSX Sparc64_HPC_ACE Reference)
219 set(GMX_FFT_LIBRARY_DEFAULT "mkl")
221 set(GMX_FFT_LIBRARY_DEFAULT "fftw3")
224 gmx_option_multichoice(
227 "${GMX_FFT_LIBRARY_DEFAULT}"
228 fftw3 mkl "fftpack[built-in]")
229 gmx_dependent_option(
231 "Download and build FFTW 3 during the GROMACS build process, rather than fall back on the really slow fftpack."
233 "GMX_FFT_LIBRARY STREQUAL FFTW3")
234 gmx_dependent_option(
235 GMX_DISABLE_FFTW_MEASURE
236 "Do not optimize FFTW setups (not needed with SSE)"
238 "GMX_FFT_LIBRARY STREQUAL FFTW3")
239 mark_as_advanced(GMX_BUILD_OWN_FFTW)
240 mark_as_advanced(GMX_DISABLE_FFTW_MEASURE)
242 gmx_option_multichoice(
244 "QM package for QM/MM"
246 none gaussian mopac gamess orca)
248 gmx_dependent_cache_variable(GMX_SIMD_REF_FLOAT_WIDTH "Reference SIMD single precision width" STRING "4" "GMX_SIMD STREQUAL REFERENCE")
249 gmx_dependent_cache_variable(GMX_SIMD_REF_DOUBLE_WIDTH "Reference SIMD double precision width" STRING "2" "GMX_SIMD STREQUAL REFERENCE")
251 # This should be moved to a separate NBNXN cmake module when that code is cleaned up and modularized
253 option(GMX_BROKEN_CALLOC "Work around broken calloc()" OFF)
254 mark_as_advanced(GMX_BROKEN_CALLOC)
256 option(GMX_OPENMP "Enable OpenMP-based multithreading" ON)
258 option(GMX_USE_TNG "Use the TNG library for trajectory I/O" ON)
260 option(GMX_BUILD_MDRUN_ONLY "Build and install only the mdrun binary" OFF)
262 option(GMX_CYCLE_SUBCOUNTERS "Enable cycle subcounters to get a more detailed cycle timings" OFF)
263 mark_as_advanced(GMX_CYCLE_SUBCOUNTERS)
265 option(GMX_SKIP_DEFAULT_CFLAGS "Don't automatically add suggested/required Compiler flags." OFF)
266 mark_as_advanced(GMX_SKIP_DEFAULT_CFLAGS)
268 option(GMX_BUILD_FOR_COVERAGE
269 "Tune build for better code coverage metrics (e.g., disable asserts)"
271 mark_as_advanced(GMX_BUILD_FOR_COVERAGE)
273 option(GMX_DEVELOPER_BUILD
274 "Enable Developer convenience features: always build unit-tests"
276 mark_as_advanced(GMX_DEVELOPER_BUILD)
278 gmx_set_boolean(GMX_COMPILER_WARNINGS_DEFAULT "NOT SOURCE_IS_SOURCE_DISTRIBUTION")
279 option(GMX_COMPILER_WARNINGS
280 "Enable a default set of compiler warnings"
281 ${GMX_COMPILER_WARNINGS_DEFAULT})
282 mark_as_advanced(GMX_COMPILER_WARNINGS)
283 # Always turn on compiler warnings with a developer build.
284 gmx_add_cache_dependency(GMX_COMPILER_WARNINGS BOOL "NOT GMX_DEVELOPER_BUILD" ON)
286 option(GMX_BUILD_SHARED_EXE
287 "Build exectuables as shared binaries. If not set, this disables rpath and dynamic linker flags in an attempt to build a static binary, but this may require setting up the toolchain properly and making appropriate libraries available."
289 mark_as_advanced(GMX_BUILD_SHARED_EXE)
291 option(GMX_PHYSICAL_VALIDATION
292 "Include physical validation tests in ctest environment. These can then be called using 'make check-phys' or
293 'make check-all'. Warning: Running the physical validation tests takes significantly more time than other tests!"
295 mark_as_advanced(GMX_PHYSICAL_VALIDATION)
297 ######################################################################
298 # Detect OpenMP support
299 ######################################################################
300 # The OpenMP detection _must_ come before tests for other CFLAGS.
301 include(gmxManageOpenMP)
305 ######################################################################
307 # These need to be done early (before further tests).
308 #####################################################################
313 # These variables should be used for CMake-style lists (ie. separated
314 # by semicolons) of additional compiler flags which are not generated
315 # in gmxCFlags nor are SIMD or MPI related.
317 # TODO These variables should be consolidated into
318 # EXTRA_COMPILER_FLAGS so that we we don't perpetrate bugs where
319 # things that work in C compilation (e.g. merging from old branches)
320 # might not also work for C++ compilation.
321 set(EXTRA_C_FLAGS "")
322 set(EXTRA_CXX_FLAGS "")
324 # Run through a number of tests for buggy compilers and other issues
325 include(gmxTestCompilerProblems)
326 gmx_test_compiler_problems()
328 # Implement double-precision option. This is complicated because we
329 # need installed headers to use the precision mode of the build that
330 # produced the library, but cannot use config.h in that case. We also
331 # want such variables to always have a definition, because #if is more
332 # robust than #ifdef. So, we put this value on the compiler command
335 # GMX_RELAXED_DOUBLE_PRECISION does not need to be handled here,
336 # because no installed header needs it
338 set(GMX_DOUBLE_VALUE 1)
340 set(GMX_DOUBLE_VALUE 0)
342 add_definitions(-DGMX_DOUBLE=${GMX_DOUBLE_VALUE})
343 list(APPEND INSTALLED_HEADER_DEFINITIONS "-DGMX_DOUBLE=${GMX_DOUBLE_VALUE}")
345 option(GMX_IMD "Enable Interactive Molecular Dynamics (IMD) sessions, e.g. with VMD" ON)
346 if(GMX_IMD AND WIN32)
347 list(APPEND GMX_EXTRA_LIBRARIES "wsock32")
352 ########################################################################
353 # Basic system tests (standard libraries, headers, functions, types) #
354 ########################################################################
355 include(CheckIncludeFiles)
356 include(CheckIncludeFileCXX)
357 check_include_files(unistd.h HAVE_UNISTD_H)
358 check_include_files(pwd.h HAVE_PWD_H)
359 check_include_files(dirent.h HAVE_DIRENT_H)
360 check_include_files(time.h HAVE_TIME_H)
361 check_include_files(sys/time.h HAVE_SYS_TIME_H)
362 check_include_files(io.h HAVE_IO_H)
363 check_include_files(sched.h HAVE_SCHED_H)
365 include(CheckCXXSymbolExists)
366 check_cxx_symbol_exists(gettimeofday sys/time.h HAVE_GETTIMEOFDAY)
367 check_cxx_symbol_exists(sysconf unistd.h HAVE_SYSCONF)
368 check_cxx_symbol_exists(nice unistd.h HAVE_NICE)
369 check_cxx_symbol_exists(fsync unistd.h HAVE_FSYNC)
370 check_cxx_symbol_exists(_fileno stdio.h HAVE__FILENO)
371 check_cxx_symbol_exists(fileno stdio.h HAVE_FILENO)
372 check_cxx_symbol_exists(_commit io.h HAVE__COMMIT)
373 check_cxx_symbol_exists(sigaction signal.h HAVE_SIGACTION)
375 # We cannot check for the __builtins as symbols, but check if code compiles
376 check_cxx_source_compiles("int main(){ return __builtin_clz(1);}" HAVE_BUILTIN_CLZ)
377 check_cxx_source_compiles("int main(){ return __builtin_clzll(1);}" HAVE_BUILTIN_CLZLL)
379 check_cxx_source_compiles("#include <intrin.h>\n int main(){unsigned long r;unsigned long i=1;_BitScanReverse(&r,i);return r;}" HAVE_BITSCANREVERSE)
380 check_cxx_source_compiles("#include <intrin.h>\n int main(){unsigned long r;unsigned __int64 i=1;_BitScanReverse(&r,i);return r;}" HAVE_BITSCANREVERSE64)
381 elseif(CMAKE_CXX_COMPILER_ID MATCHES "XL")
382 check_cxx_source_compiles("int main(){ return __cntlz4(1);}" HAVE_CNTLZ4)
383 check_cxx_source_compiles("int main(){ return __cntlz8(1);}" HAVE_CNTLZ8)
386 include(CheckLibraryExists)
387 find_library(HAVE_LIBM m)
388 mark_as_advanced(HAVE_LIBM)
389 check_library_exists(rt clock_gettime "" HAVE_CLOCK_GETTIME)
390 check_library_exists(m feenableexcept "" HAVE_FEENABLEEXCEPT)
391 check_library_exists(m fedisableexcept "" HAVE_FEDISABLEEXCEPT)
393 include(TestSchedAffinity)
394 test_sched_affinity(HAVE_SCHED_AFFINITY)
396 # Aligned memory allocation. We need to check for both mm_malloc(),
397 # posix_memalign(), memalign(), and on windows also _aligned_malloc()
398 include(gmxTestMMMalloc)
399 gmx_test_mm_malloc(HAVE__MM_MALLOC)
400 check_cxx_symbol_exists(posix_memalign stdlib.h HAVE_POSIX_MEMALIGN)
401 check_cxx_symbol_exists(memalign stdlib.h HAVE_MEMALIGN)
403 # No need to waste time on this test on platforms where it will never be true
404 check_cxx_symbol_exists(_aligned_malloc stdlib.h HAVE__ALIGNED_MALLOC)
407 include(TestBigEndian)
408 test_big_endian(GMX_INTEGER_BIG_ENDIAN)
410 gmx_set_boolean(GMX_USE_NICE "HAVE_UNISTD_H AND HAVE_NICE")
412 # Management of GROMACS options for specific toolchains should go
413 # here. Because the initial settings for some of the main options have
414 # already happened, but things like library detection and MPI compiler
415 # feature detection have not, the docstrings for any over-rides of
416 # GROMACS defaults or user settings will make sense. Also, any
417 # toolchain-related reasons for choosing whether to detect various
418 # things can be sorted out now, before the detection takes place.
419 if(GMX_TARGET_FUJITSU_SPARC64)
420 include(gmxManageFujitsuSparc64)
423 ########################################################################
424 #Process MPI settings
425 ########################################################################
426 include(gmxManageMPI)
428 ########################################################################
429 #Process MiMiC settings
430 ########################################################################
431 include(gmxManageMimic)
433 ########################################################################
434 #Process shared/static library settings
435 ########################################################################
436 include(gmxManageSharedLibraries)
439 ########################################################################
440 # Find external packages #
441 ########################################################################
443 # Unconditionally find the package, as it is also required for unit
444 # tests. This exports LIBXML2_FOUND, which we should not use because
445 # it does not tell us that linking will succeed. Instead, we test that
447 #if(DEFINED LIBXML2_LIBRARIES)
448 # set(LibXml2_FIND_QUIETLY TRUE)
450 #find_package(LibXml2)
451 #include(gmxTestLibXml2)
452 #gmx_test_libxml2(HAVE_LIBXML2)
453 #option(GMX_XML "Use libxml2 to parse xml files (currently has no effect)" ${HAVE_LIBXML2})
455 #mark_as_advanced(GMX_XML)
456 # Don't actually do anything, since libxml2 is currently not used by libgromacs
457 #if(GMX_XML AND NOT HAVE_LIBXML2)
458 # message(FATAL_ERROR "libxml2 not found. Set GMX_XML=OFF to compile without XML support")
461 # include_directories(${LIBXML2_INCLUDE_DIR})
462 # set(PKG_XML libxml-2.0)
463 # set(XML_LIBRARIES ${LIBXML2_LIBRARIES})
468 "Use hwloc portable hardware locality library"
472 # Find quietly the second time.
473 if (HWLOC_FIND_QUIETLY_AFTER_FIRST_RUN)
474 set(HWLOC_FIND_QUIETLY TRUE)
476 find_package(HWLOC 1.5)
479 if (HWLOC_LIBRARIES MATCHES ".a$")
480 set(_STATIC_HWLOC TRUE)
483 gmx_check_if_changed(HWLOC_FOUND_CHANGED HWLOC_FOUND)
484 if (_STATIC_HWLOC AND HWLOC_FOUND_CHANGED AND NOT GMX_HWLOC_FORCE)
485 message(STATUS "Static hwloc library found, will not attempt using it as it could lead to link-time errors. To use the detected library, manually set GMX_HWLOC=ON and you will likely have to pass appropriate linker flags too to satisfy the link-time dependencies of your hwloc library. Try \"pkg-config --libs --static hwloc\" for suggestions on what you will need.")
486 set(GMX_USE_HWLOC OFF)
488 set(GMX_USE_HWLOC ON)
492 include_directories(SYSTEM ${HWLOC_INCLUDE_DIRS})
493 list(APPEND GMX_EXTRA_LIBRARIES ${HWLOC_LIBRARIES})
495 elseif(GMX_HWLOC_FORCE)
496 message(FATAL_ERROR "HWLOC package support required, but not found.")
499 set(HWLOC_FIND_QUIETLY_AFTER_FIRST_RUN TRUE CACHE INTERNAL "Be quiet during future attempts to find HWLOC")
502 option(GMX_EXTERNAL_TINYXML2 "Use external TinyXML-2 instead of compiling the version bundled with GROMACS." OFF)
503 mark_as_advanced(GMX_EXTERNAL_TINYXML2)
504 if(GMX_EXTERNAL_TINYXML2)
505 # Find an external TinyXML-2 library.
506 find_package(TinyXML-2 3.0.0)
507 set(HAVE_TINYXML2 ${TinyXML2_FOUND})
508 if(NOT HAVE_TINYXML2)
509 message(FATAL_ERROR "External TinyXML-2 could not be found, please adjust your search paths")
513 option(GMX_EXTRAE "Add support for tracing using EXTRAE" OFF)
514 mark_as_advanced(GMX_EXTRAE)
519 include_directories(SYSTEM ${EXTRAE_INCLUDE_DIR})
522 message(FATAL_ERROR "EXTRAE library was not found. Please add the correct path to CMAKE_PREFIX_PATH")
526 option(GMX_X11 "Use X window system" OFF)
529 # X11 includes/libraries are only set in the ngmx subdirectory!
532 "X11 include files and/or libraries were not found. "
533 "Set GMX_X11=OFF to compile without X11 support. "
534 "gmx view will not be available.")
536 include_directories(SYSTEM ${X11_INCLUDE_DIR})
540 # Enable core threading facilities
541 tmpi_enable_core("${CMAKE_SOURCE_DIR}/src/external/thread_mpi/include")
543 # enable MPI functions
545 set(MPI_IN_PLACE_EXISTS 1)
547 # If atomics are manually disabled a define is needed because atomics.h doesn't depend on config.h
548 if (TMPI_ATOMICS_DISABLED)
549 add_definitions(-DTMPI_ATOMICS_DISABLED)
552 include(gmxManageTNG)
554 include(gmxManageLmfit)
557 # now that we have detected the dependencies, do the second configure pass
560 list(APPEND GMX_EXTRA_LIBRARIES ${GMX_CUDA_CLANG_LINK_LIBS})
561 link_directories("${GMX_CUDA_CLANG_LINK_DIRS}")
570 set(GMX_NATIVE_WINDOWS 1)
571 # This makes windows.h not declare min/max as macros that would break
572 # C++ code using std::min/std::max.
573 add_definitions(-DNOMINMAX)
576 option(GMX_BUILD_UNITTESTS "Build unit tests with BUILD_TESTING" ON)
577 mark_as_advanced(GMX_BUILD_UNITTESTS)
578 gmx_add_cache_dependency(GMX_BUILD_UNITTESTS BOOL BUILD_TESTING OFF)
580 ########################################################################
581 # Our own GROMACS tests
582 ########################################################################
584 include_directories(BEFORE ${CMAKE_SOURCE_DIR}/src)
585 # Required for config.h, maybe should only be set in src/CMakeLists.txt
586 include_directories(BEFORE ${CMAKE_BINARY_DIR}/src)
588 include(gmxTestInlineASM)
589 gmx_test_inline_asm_gcc_x86(GMX_X86_GCC_INLINE_ASM)
591 include(gmxSetBuildInformation)
592 gmx_set_build_information()
594 gmx_option_multichoice(
596 "Use low-latency RDTSCP instruction for CPU-based timers for mdrun execution; might need to be off when compiling for heterogeneous environments)"
599 mark_as_advanced(GMX_USE_RDTSCP)
601 macro(gmx_check_rdtscp)
602 if (CPU_DETECTION_FEATURES MATCHES "rdtscp")
604 set(RDTSCP_DETECTION_MESSAGE " - detected on the build host")
606 set(RDTSCP_DETECTION_MESSAGE " - not detected on the build host")
611 if (GMX_USE_RDTSCP STREQUAL "ON")
613 elseif(GMX_USE_RDTSCP STREQUAL "DETECT")
615 elseif(GMX_USE_RDTSCP STREQUAL "AUTO")
616 # If the user specified automated SIMD selection, that the choice
617 # is made based on detection on the build host. If so, then RDTSCP
618 # should be chosen the same way.
620 # If the user specified an AVX SIMD level (e.g. when
621 # cross-compiling GROMACS) then they will get our best guess, ie
622 # that in practice AVX mostly correlates with rdtscp (and anyway
623 # is only relevant in rather old x86 hardware).
624 if (GMX_SIMD STREQUAL "AUTO")
626 elseif (GMX_SIMD MATCHES "AVX")
630 gmx_check_if_changed(HAVE_RDTSCP_CHANGED HAVE_RDTSCP)
631 if (HAVE_RDTSCP_CHANGED)
633 message(STATUS "Enabling RDTSCP support${RDTSCP_DETECTION_MESSAGE}")
635 message(STATUS "Disabling RDTSCP support${RDTSCP_DETECTION_MESSAGE}")
639 include(gmxTestLargeFiles)
640 gmx_test_large_files(GMX_LARGEFILES)
642 include(gmxTestSignal)
643 gmx_test_sigusr1(HAVE_SIGUSR1)
645 include(gmxTestPipes)
646 gmx_test_pipes(HAVE_PIPES)
649 gmx_test_xdr(GMX_SYSTEM_XDR)
650 # Darwin has system XDR, but it uses a three-argument flavour of
651 # xdrproc_t that it guarantees will still work if you pass the normal
652 # two-argument xdr filters, but gcc 8 warns about the cast necessary
653 # to do that, so it's simpler to just use our own XDR library.
655 # TODO It would be better to craft a cmake test which fails if such
656 # XDR operations cause warnings, and succeeds otherwise, because it is
657 # generally preferable to use system libraries where possible.
658 if(NOT GMX_SYSTEM_XDR OR CMAKE_SYSTEM_NAME STREQUAL "Darwin")
659 set(GMX_INTERNAL_XDR 1)
663 ##################################################
664 # Process SIMD instruction settings
665 ##################################################
666 # This checks what flags to add in order to
667 # support the SIMD instructions we need, it sets
668 # correct defines for the SIMD instructions supported,
669 # and adds advanced options to control accuracy
670 # for SIMD math operations.
671 include(gmxManageSimd)
674 include(gmxManageCycleCounters)
675 gmx_manage_cycle_counters()
677 # Process QM/MM Settings
678 if(${GMX_QMMM_PROGRAM} STREQUAL "GAUSSIAN")
679 set(GMX_QMMM_GAUSSIAN 1)
680 elseif(${GMX_QMMM_PROGRAM} STREQUAL "MOPAC")
681 set(GMX_QMMM_MOPAC 1)
682 elseif(${GMX_QMMM_PROGRAM} STREQUAL "GAMESS")
683 set(GMX_QMMM_GAMESS 1)
684 elseif(${GMX_QMMM_PROGRAM} STREQUAL "ORCA")
686 elseif(${GMX_QMMM_PROGRAM} STREQUAL "NONE")
689 gmx_invalid_option_value(GMX_QMMM_PROGRAM)
693 ##################################################
694 # Process FFT library settings
695 ##################################################
696 include(gmxManageFFTLibraries)
699 include(gmxManageLinearAlgebraLibraries)
701 include(gmxManagePluginSupport)
704 if(NOT GMX_VMD_PLUGIN_PATH)
709 # Link real-time library for POSIX timers. The check for clock_gettime
710 # confirms the linkability of rt.
711 if(HAVE_TIME_H AND HAVE_UNISTD_H AND HAVE_CLOCK_GETTIME)
712 list(APPEND GMX_EXTRA_LIBRARIES rt)
715 # Math and thread libraries must often come after all others when linking...
717 list(APPEND GMX_PUBLIC_LIBRARIES m)
720 option(GMX_NACL "Configure for Native Client builds" OFF)
722 list(APPEND GMX_EXTRA_LIBRARIES nosys)
723 set(GMX_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -lnosys")
724 # TODO: Is this still necessary with the check for its presence?
728 mark_as_advanced(GMX_NACL)
731 set(COREWRAP_INCLUDE_DIR "${CMAKE_SOURCE_DIR}/../corewrap" CACHE STRING
732 "Path to swindirect.h")
733 include_directories(${COREWRAP_INCLUDE_DIR})
736 # Value of GMX_BUILD_HELP=AUTO tries to generate things, but will only
737 # produce warnings if that fails.
738 set(build_help_default AUTO)
739 if (SOURCE_IS_SOURCE_DISTRIBUTION OR CMAKE_CROSSCOMPILING)
740 set(build_help_default OFF)
742 gmx_option_trivalue(GMX_BUILD_HELP "Build completions automatically (requires that compiled binaries can be executed on the build host) and install man pages if built (requires building the 'man' target manually)" ${build_help_default})
743 mark_as_advanced(GMX_BUILD_HELP)
744 if (GMX_BUILD_HELP AND SOURCE_IS_SOURCE_DISTRIBUTION AND BUILD_IS_INSOURCE)
746 "Rebuilding shell completions or man pages is not supported for "
747 "in-source builds from a source distribution. "
748 "Set GMX_BUILD_HELP=OFF or do an out-of-source build to proceed.")
751 # # # # # # # # # # NO MORE TESTS AFTER THIS LINE! # # # # # # # # # # #
752 # these are set after everything else
753 if (NOT GMX_SKIP_DEFAULT_CFLAGS)
754 set(CMAKE_EXE_LINKER_FLAGS "${FFT_LINKER_FLAGS} ${MPI_LINKER_FLAGS} ${CMAKE_EXE_LINKER_FLAGS}")
755 set(CMAKE_SHARED_LINKER_FLAGS "${FFT_LINKER_FLAGS} ${MPI_LINKER_FLAGS} ${CMAKE_SHARED_LINKER_FLAGS}")
757 message("Recommended flags which are not added because GMX_SKIP_DEFAULT_CFLAGS=yes:")
758 message("CMAKE_C_FLAGS: ${SIMD_C_FLAGS};${MPI_COMPILE_FLAGS};${EXTRA_C_FLAGS};${GMXC_CFLAGS}")
759 foreach(build_type ${build_types_with_explicit_flags})
760 message("CMAKE_C_FLAGS_${build_type}: ${GMXC_CFLAGS_${build_type}}")
762 message("CMAKE_CXX_FLAGS: ${SIMD_CXX_FLAGS};${MPI_COMPILE_FLAGS};${EXTRA_CXX_FLAGS};${GMXC_CXXFLAGS}")
763 foreach(build_type ${build_types_with_explicit_flags})
764 message("CMAKE_CXX_FLAGS_${build_type}: ${GMXC_CXXFLAGS_${build_type}}")
766 message("CMAKE_EXE_LINKER_FLAGS: ${FFT_LINKER_FLAGS} ${MPI_LINKER_FLAGS}")
767 message("CMAKE_SHARED_LINKER_FLAGS: ${FFT_LINKER_FLAGS} ${MPI_LINKER_FLAGS}")
770 ########################################################################
771 # Specify install locations
772 ########################################################################
773 # Use GNUInstallDirs to set paths on multiarch systems.
774 include(GNUInstallDirs)
776 set(GMX_INSTALL_DATASUBDIR "gromacs" CACHE STRING "Subdirectory for GROMACS data under CMAKE_INSTALL_DATADIR")
777 mark_as_advanced(GMX_INSTALL_DATASUBDIR)
779 # Internal convenience so we do not have to join two path segments in the code
780 set(GMX_INSTALL_GMXDATADIR ${CMAKE_INSTALL_DATADIR}/${GMX_INSTALL_DATASUBDIR})
782 # If the nesting level wrt. the installation root is changed,
783 # gromacs-config.cmake.cmakein needs to be adapted.
784 set(GMX_INSTALL_CMAKEDIR ${CMAKE_INSTALL_DATAROOTDIR}/cmake)
786 # TODO: Make GMXRC adapt if this is changed
787 set(GMX_INSTALL_PKGCONFIGDIR ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
788 set(GMX_INSTALL_OCLDIR ${GMX_INSTALL_GMXDATADIR}/opencl)
790 list(APPEND INSTALLED_HEADER_INCLUDE_DIRS ${CMAKE_INSTALL_INCLUDEDIR})
792 # Binary and library suffix options
793 include(gmxManageSuffixes)
795 ################################################################
796 # Shared library load path settings
797 ################################################################
798 if(NOT GMX_BUILD_SHARED_EXE)
800 set(CMAKE_SKIP_RPATH TRUE)
801 set(CMAKE_EXE_LINK_DYNAMIC_C_FLAGS) # remove -Wl,-Bdynamic
802 set(CMAKE_EXE_LINK_DYNAMIC_CXX_FLAGS)
804 # The build folder always has bin/ and lib/; if we are also going to
805 # install to lib/, then the installation RPATH works also in the build
806 # tree. This makes installation slightly faster (no need to rewrite the
807 # RPATHs), and makes the binaries in the build tree relocatable.
808 if(CMAKE_INSTALL_LIBDIR STREQUAL "lib")
809 set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
811 cmake_policy(SET CMP0068 NEW) # From CMake-3.9
812 set(CMAKE_BUILD_WITH_INSTALL_NAME_DIR TRUE)
815 # Set the RPATH as relative to the executable location to make the
816 # binaries relocatable.
817 if(CMAKE_SYSTEM_NAME STREQUAL "Darwin") #Assume OS X >=10.5
818 set(CMAKE_INSTALL_RPATH "@loader_path/../${CMAKE_INSTALL_LIBDIR}")
819 set(CMAKE_INSTALL_NAME_DIR ${CMAKE_INSTALL_RPATH})
821 set(CMAKE_INSTALL_RPATH "\$ORIGIN/../${CMAKE_INSTALL_LIBDIR}")
823 set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
824 set(CMAKE_MACOSX_RPATH 1)
827 #COPYING file: Only necessary for binary distributions.
828 #Simpler to always install.
829 install(FILES COPYING DESTINATION ${GMX_INSTALL_GMXDATADIR} COMPONENT data)
831 if (GMX_BUILD_FOR_COVERAGE)
832 # Code heavy with asserts makes conditional coverage close to useless metric,
833 # as by design most of the false branches are impossible to trigger in
834 # correctly functioning code. And the benefit of testing those that could
835 # be triggered by using an API against its specification isn't usually
837 add_definitions(-DNDEBUG -DGMX_DISABLE_ASSERTS)
841 include(tests/CheckTarget.cmake)
844 # TODO: Determine control flow and defaults for package installation and testing use cases.
845 # Ref: http://redmine.gromacs.org/issues/2896
846 option(GMX_PYTHON_PACKAGE "Configure gmxapi Python package" OFF)
847 mark_as_advanced(GMX_PYTHON_PACKAGE)
849 if (NOT GMX_BUILD_MDRUN_ONLY)
850 # Note: Though only documented as an output variable, PYTHON_EXECUTABLE is
851 # also effective as a CMake input variable to effectively hint the location
852 # of the Python interpreter. This may be helpful in environments with both
853 # Python 2 and Python 3 on the default PATH.
854 # Ref: https://cmake.org/cmake/help/latest/module/FindPythonInterp.html
855 if(FIND_PACKAGE_MESSAGE_DETAILS_PythonInterp)
856 # Keep quiet on subsequent runs of cmake
857 set(PythonInterp_FIND_QUIETLY ON)
859 # Older CMake versions might not search for Python newer than 3.7.
860 set(Python_ADDITIONAL_VERSIONS 3.8)
861 if(GMX_PYTHON_PACKAGE)
862 find_package(PythonInterp 3.5 REQUIRED)
863 # Note: PythonLibs will be found later by pybind11.
864 # TODO: (issue #2998) When CMake >= 3.12 is required, update detection.
865 # I.e. find_package(Python3 3.5 COMPONENTS Interpreter Development REQUIRED)
867 find_package(PythonInterp 3.5)
869 find_package(ImageMagick QUIET COMPONENTS convert)
870 include(gmxTestImageMagick)
871 GMX_TEST_IMAGEMAGICK(IMAGE_CONVERT_POSSIBLE)
872 add_subdirectory(docs)
873 add_subdirectory(share)
874 add_subdirectory(scripts)
876 add_subdirectory(src)
879 add_subdirectory(tests)
882 if(GMX_PYTHON_PACKAGE AND NOT GMX_BUILD_MDRUN_ONLY)
883 add_subdirectory(python_packaging)
886 gmx_cpack_write_config()
888 # Issue a warning if NVIDIA GPUs were detected, but CUDA was not found.
889 # Don't bother the user after the first configure pass.
890 if ((CUDA_NOTFOUND_AUTO AND GMX_DETECT_GPU_AVAILABLE) AND NOT GMX_GPU_DETECTION_DONE)
891 message(WARNING "${CUDA_NOTFOUND_MESSAGE}")
893 set(GMX_GPU_DETECTION_DONE TRUE CACHE INTERNAL "Whether GPU detection has already been done")
895 #######################
897 #######################
898 CONFIGURE_FILE( "${CMAKE_CURRENT_SOURCE_DIR}/cmake/cmake_uninstall.cmake.in"
899 "${CMAKE_CURRENT_BINARY_DIR}/cmake/cmake_uninstall.cmake"
901 ###########################
902 ADD_CUSTOM_TARGET(uninstall
903 "${CMAKE_COMMAND}" -P
904 "${CMAKE_CURRENT_BINARY_DIR}/cmake/cmake_uninstall.cmake")
905 ###########################
906 set_directory_properties(PROPERTIES
907 ADDITIONAL_MAKE_CLEAN_FILES "install_manifest.txt")