2 # This file is part of the GROMACS molecular simulation package.
4 # Copyright (c) 2009,2010,2011,2012,2013 by the GROMACS development team.
5 # Copyright (c) 2014,2015,2016,2017,2018 by the GROMACS development team.
6 # Copyright (c) 2019,2020, by the GROMACS development team, led by
7 # Mark Abraham, David van der Spoel, Berk Hess, and Erik Lindahl,
8 # and including many others, as listed in the AUTHORS file in the
9 # top-level source directory and at http://www.gromacs.org.
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35 # the research papers on the package. Check out http://www.gromacs.org.
37 cmake_minimum_required(VERSION 3.13)
38 cmake_policy(SET CMP0074 NEW) # From CMake 3.12
39 cmake_policy(SET CMP0068 NEW) # From CMake-3.9
41 # CMake modules/macros are in a subdirectory to keep this file cleaner
42 # This needs to be set before project() in order to pick up toolchain files
43 list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake ${CMAKE_CURRENT_SOURCE_DIR}/cmake/Platform)
45 if(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
46 # Providing a default value >=10.14 helps to find modern C++ compatibility,
47 # such as by defaulting to the Clang libc++ instead of libstdc++.
48 set(CMAKE_OSX_DEPLOYMENT_TARGET 10.14 CACHE STRING
49 "OS X deployment target affects default SDK version and compiler flags."
51 # By default, limit the binary architecture to a single 64-bit build.
52 set(CMAKE_OSX_ARCHITECTURES x86_64 CACHE STRING
53 "OS X architecture affects the compatibility of the (potentially fat) binaries produced."
59 set(CMAKE_CXX_STANDARD 17)
60 set(CMAKE_CXX_STANDARD_REQUIRED ON)
61 set(CMAKE_CXX_EXTENSIONS OFF)
63 include(gmxManageCcache)
65 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
66 set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
67 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
69 find_package(LibStdCpp)
71 # Python is first referenced in gmxVersionInfo, so we perform the search early
72 # to find a suitable installation for all components.
73 include(gmxPythonDiscovery)
74 # Set up common version variables, as well as general information about
75 # the build tree (whether the build is from a source package or from a git
76 # repository). Also declares a few functions that will be used for generating
77 # version info files later.
78 include(gmxBuildTreeInfo)
79 include(gmxVersionInfo)
81 if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT AND UNIX)
82 set(CMAKE_INSTALL_PREFIX "/usr/local/gromacs" CACHE STRING "Installation prefix (installation will need write permissions here)" FORCE)
84 if("${CMAKE_INSTALL_PREFIX}" STREQUAL "${CMAKE_BINARY_DIR}")
85 message(FATAL_ERROR "GROMACS cannot be installed into the build tree, choose a different location for CMAKE_INSTALL_PREFIX")
88 include(gmxBuildTypeReference)
89 include(gmxBuildTypeProfile)
90 include(gmxBuildTypeTSAN)
91 include(gmxBuildTypeASAN)
92 include(gmxBuildTypeMSAN)
93 include(gmxBuildTypeUBSAN)
94 include(gmxBuildTypeReleaseWithAssert)
96 if(NOT CMAKE_BUILD_TYPE)
97 set(CMAKE_BUILD_TYPE "Release" CACHE STRING "Choose the type of build, options are: Debug Release RelWithDebInfo MinSizeRel Reference RelWithAssert Profile TSAN ASAN MSAN UBSAN." FORCE)
98 # Set the possible values of build type for cmake-gui
99 set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "Debug" "Release"
100 "MinSizeRel" "RelWithDebInfo" "Reference" "RelWithAssert" "Profile" "TSAN" "ASAN" "MSAN" "UBSAN")
102 if(CMAKE_CONFIGURATION_TYPES)
103 # Add appropriate GROMACS-specific build types for the Visual
104 # Studio generator (Debug, Release, MinSizeRel and RelWithDebInfo
105 # are already present by default).
106 list(APPEND CMAKE_CONFIGURATION_TYPES "RelWithAssert" "Reference")
107 list(REMOVE_DUPLICATES CMAKE_CONFIGURATION_TYPES)
108 set(CMAKE_CONFIGURATION_TYPES "${CMAKE_CONFIGURATION_TYPES}" CACHE STRING
109 "List of configuration types"
112 set(build_types_with_explicit_flags RELEASE DEBUG RELWITHDEBINFO RELWITHASSERT MINSIZEREL PROFILE)
114 set_property(GLOBAL PROPERTY FIND_LIBRARY_USE_LIB64_PATHS ON)
116 include(gmxCTestUtilities)
119 include(gmxCPackUtilities)
122 # Variables that accumulate stuff influencing the installed headers
123 set(INSTALLED_HEADER_INCLUDE_DIRS "")
124 set(INSTALLED_HEADER_DEFINITIONS "")
126 ########################################################################
127 # Global non-cache variables for implementing the build system
128 ########################################################################
130 # These variables collect libraries that GROMACS requires for
131 # linking. They should be appended to with list(APPEND ${name}
132 # new-library) calls. They are:
133 # - Libraries that are required for libgromacs (only)
134 set(GMX_EXTRA_LIBRARIES "")
135 # - Libraries that are required for all code in the repository
136 set(GMX_COMMON_LIBRARIES "")
137 # - Libraries that all code linked against libgromacs needs
138 # (i.e., something that is exposed in installed headers).
139 set(GMX_PUBLIC_LIBRARIES "")
141 ########################################################################
142 # Check and warn if cache generated on a different host is being reused
143 ########################################################################
145 execute_process(COMMAND hostname
146 OUTPUT_VARIABLE TMP_HOSTNAME
147 OUTPUT_STRIP_TRAILING_WHITESPACE)
148 # Only check for host name if not running in a CI environment, as the cache might
149 # be reused there between different machines in different stages
150 if(GMX_BUILD_HOSTNAME AND NOT "${GMX_BUILD_HOSTNAME}" STREQUAL "${TMP_HOSTNAME}"
151 AND NOT DEFINED ENV{CI_JOB_ID})
153 The CMake cache, probably generated on a different host (${GMX_BUILD_HOSTNAME}),
154 is being reused! This could lead to inconsistencies; therefore, it is
155 recommended to regenerate the cache!")
157 set(GMX_BUILD_HOSTNAME "${TMP_HOSTNAME}" CACHE INTERNAL
158 "Hostname of the machine where the cache was generated.")
161 ########################################################################
162 # Detect architecture before setting options so we can alter defaults
163 ########################################################################
164 # Detect the architecture the compiler is targetting, detect
165 # SIMD instructions possibilities on that hardware, suggest SIMD instruction set
166 # to use if none is specified, and populate the cache option for CPU
168 include(gmxDetectTargetArchitecture)
169 gmx_detect_target_architecture()
171 ########################################################################
172 # User input options #
173 ########################################################################
174 include(gmxOptionUtilities)
176 set(CMAKE_PREFIX_PATH "" CACHE STRING "Extra locations to search for external libraries and tools (give directory without lib, bin, or include)")
178 # Fujitsu only has SIMD in double precision, so this will be faster
179 gmx_set_boolean(GMX_DOUBLE_DEFAULT GMX_TARGET_FUJITSU_SPARC64)
180 option(GMX_DOUBLE "Use double precision (much slower, use only if you really need it)" ${GMX_DOUBLE_DEFAULT})
181 option(GMX_RELAXED_DOUBLE_PRECISION "Accept single precision 1/sqrt(x) when using Fujitsu HPC-ACE SIMD" OFF)
182 mark_as_advanced(GMX_RELAXED_DOUBLE_PRECISION)
184 option(GMX_MPI "Build a parallel (message-passing) version of GROMACS" OFF)
185 option(GMX_THREAD_MPI "Build a thread-MPI-based multithreaded version of GROMACS (not compatible with MPI)" ON)
186 gmx_dependent_option(
188 "Enable MPI_IN_PLACE for MPIs that have it defined"
191 mark_as_advanced(GMX_MPI_IN_PLACE)
193 option(GMX_MIMIC "Enable MiMiC QM/MM interface (CPMD is required)" OFF)
195 option(GMX_FAHCORE "Build a library with mdrun functionality" OFF)
196 mark_as_advanced(GMX_FAHCORE)
198 option(GMX_COOL_QUOTES "Enable GROMACS cool quotes" ON)
199 mark_as_advanced(GMX_COOL_QUOTES)
200 gmx_add_cache_dependency(GMX_COOL_QUOTES BOOL "NOT GMX_FAHCORE" OFF)
202 option(GMX_INSTALL_LEGACY_API "Install legacy headers" OFF)
204 gmx_option_multichoice(
206 "Framework for GPU acceleration"
208 OFF CUDA OpenCL SYCL)
210 gmx_option_multichoice(
212 "SIMD instruction set for CPU kernels and compiler optimization"
214 AUTO None SSE2 SSE4.1 AVX_128_FMA AVX_256 AVX2_256 AVX2_128 AVX_512 AVX_512_KNL MIC ARM_NEON ARM_NEON_ASIMD IBM_VMX IBM_VSX Sparc64_HPC_ACE Reference)
217 set(GMX_FFT_LIBRARY_DEFAULT "mkl")
219 set(GMX_FFT_LIBRARY_DEFAULT "fftw3")
222 gmx_option_multichoice(
225 "${GMX_FFT_LIBRARY_DEFAULT}"
226 fftw3 mkl "fftpack[built-in]")
227 gmx_dependent_option(
229 "Download and build FFTW 3 during the GROMACS build process, rather than fall back on the really slow fftpack."
231 "GMX_FFT_LIBRARY STREQUAL FFTW3")
232 gmx_dependent_option(
233 GMX_DISABLE_FFTW_MEASURE
234 "Do not optimize FFTW setups (not needed with SSE)"
236 "GMX_FFT_LIBRARY STREQUAL FFTW3")
237 mark_as_advanced(GMX_BUILD_OWN_FFTW)
238 mark_as_advanced(GMX_DISABLE_FFTW_MEASURE)
240 gmx_dependent_cache_variable(GMX_SIMD_REF_FLOAT_WIDTH "Reference SIMD single precision width" STRING "4" "GMX_SIMD STREQUAL REFERENCE")
241 gmx_dependent_cache_variable(GMX_SIMD_REF_DOUBLE_WIDTH "Reference SIMD double precision width" STRING "2" "GMX_SIMD STREQUAL REFERENCE")
243 # This should be moved to a separate NBNXN cmake module when that code is cleaned up and modularized
245 option(GMX_BROKEN_CALLOC "Work around broken calloc()" OFF)
246 mark_as_advanced(GMX_BROKEN_CALLOC)
248 option(GMX_OPENMP "Enable OpenMP-based multithreading" ON)
250 option(GMX_USE_TNG "Use the TNG library for trajectory I/O" ON)
252 option(GMX_BUILD_MDRUN_ONLY "Build and install only the mdrun binary" OFF)
254 option(GMX_CYCLE_SUBCOUNTERS "Enable cycle subcounters to get a more detailed cycle timings" OFF)
255 mark_as_advanced(GMX_CYCLE_SUBCOUNTERS)
257 option(GMX_SKIP_DEFAULT_CFLAGS "Don't automatically add suggested/required Compiler flags." OFF)
258 mark_as_advanced(GMX_SKIP_DEFAULT_CFLAGS)
260 option(GMX_BUILD_FOR_COVERAGE
261 "Tune build for better code coverage metrics (e.g., disable asserts)"
263 mark_as_advanced(GMX_BUILD_FOR_COVERAGE)
265 option(GMX_DEVELOPER_BUILD
266 "Enable Developer convenience features: always build unit-tests"
268 mark_as_advanced(GMX_DEVELOPER_BUILD)
270 gmx_set_boolean(GMX_COMPILER_WARNINGS_DEFAULT "NOT SOURCE_IS_SOURCE_DISTRIBUTION")
271 option(GMX_COMPILER_WARNINGS
272 "Enable a default set of compiler warnings"
273 ${GMX_COMPILER_WARNINGS_DEFAULT})
274 mark_as_advanced(GMX_COMPILER_WARNINGS)
275 # Always turn on compiler warnings with a developer build.
276 gmx_add_cache_dependency(GMX_COMPILER_WARNINGS BOOL "NOT GMX_DEVELOPER_BUILD" ON)
278 option(GMX_BUILD_SHARED_EXE
279 "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."
281 mark_as_advanced(GMX_BUILD_SHARED_EXE)
283 option(GMX_PHYSICAL_VALIDATION
284 "Include physical validation tests in ctest environment. These can then be called using 'make check-phys' or
285 'make check-all'. Warning: Running the physical validation tests takes significantly more time than other tests!"
287 mark_as_advanced(GMX_PHYSICAL_VALIDATION)
289 ######################################################################
290 # Detect OpenMP support
291 ######################################################################
292 # The OpenMP detection _must_ come before tests for other CFLAGS.
293 include(gmxManageOpenMP)
297 ######################################################################
299 # These need to be done early (before further tests).
300 #####################################################################
305 # These variables should be used for CMake-style lists (ie. separated
306 # by semicolons) of additional compiler flags which are not generated
307 # in gmxCFlags nor are SIMD or MPI related.
309 # TODO These variables should be consolidated into
310 # EXTRA_COMPILER_FLAGS so that we we don't perpetrate bugs where
311 # things that work in C compilation (e.g. merging from old branches)
312 # might not also work for C++ compilation.
313 set(EXTRA_C_FLAGS "")
314 set(EXTRA_CXX_FLAGS "")
316 # Run through a number of tests for buggy compilers and other issues
317 include(gmxTestCompilerProblems)
318 gmx_test_compiler_problems()
320 # Implement double-precision option. This is complicated because we
321 # need installed headers to use the precision mode of the build that
322 # produced the library, but cannot use config.h in that case. We also
323 # want such variables to always have a definition, because #if is more
324 # robust than #ifdef. So, we put this value on the compiler command
327 # GMX_RELAXED_DOUBLE_PRECISION does not need to be handled here,
328 # because no installed header needs it
330 set(GMX_DOUBLE_VALUE 1)
332 set(GMX_DOUBLE_VALUE 0)
334 add_definitions(-DGMX_DOUBLE=${GMX_DOUBLE_VALUE})
335 list(APPEND INSTALLED_HEADER_DEFINITIONS "-DGMX_DOUBLE=${GMX_DOUBLE_VALUE}")
337 option(GMX_IMD "Enable Interactive Molecular Dynamics (IMD) sessions, e.g. with VMD" ON)
338 if(GMX_IMD AND WIN32)
339 list(APPEND GMX_EXTRA_LIBRARIES "wsock32")
344 ########################################################################
345 # Basic system tests (standard libraries, headers, functions, types) #
346 ########################################################################
347 include(CheckIncludeFiles)
348 include(CheckIncludeFileCXX)
349 check_include_files(unistd.h HAVE_UNISTD_H)
350 check_include_files(pwd.h HAVE_PWD_H)
351 check_include_files(dirent.h HAVE_DIRENT_H)
352 check_include_files(time.h HAVE_TIME_H)
353 check_include_files(sys/time.h HAVE_SYS_TIME_H)
354 check_include_files(io.h HAVE_IO_H)
355 check_include_files(sched.h HAVE_SCHED_H)
356 check_include_files(xmmintrin.h HAVE_XMMINTRIN_H)
358 include(CheckCXXSymbolExists)
359 check_cxx_symbol_exists(gettimeofday sys/time.h HAVE_GETTIMEOFDAY)
360 check_cxx_symbol_exists(sysconf unistd.h HAVE_SYSCONF)
361 check_cxx_symbol_exists(nice unistd.h HAVE_NICE)
362 check_cxx_symbol_exists(fsync unistd.h HAVE_FSYNC)
363 check_cxx_symbol_exists(_fileno stdio.h HAVE__FILENO)
364 check_cxx_symbol_exists(fileno stdio.h HAVE_FILENO)
365 check_cxx_symbol_exists(_commit io.h HAVE__COMMIT)
366 check_cxx_symbol_exists(sigaction signal.h HAVE_SIGACTION)
368 # We cannot check for the __builtins as symbols, but check if code compiles
369 check_cxx_source_compiles("int main(){ return __builtin_clz(1);}" HAVE_BUILTIN_CLZ)
370 check_cxx_source_compiles("int main(){ return __builtin_clzll(1);}" HAVE_BUILTIN_CLZLL)
372 check_cxx_source_compiles("#include <intrin.h>\n int main(){unsigned long r;unsigned long i=1;_BitScanReverse(&r,i);return r;}" HAVE_BITSCANREVERSE)
373 check_cxx_source_compiles("#include <intrin.h>\n int main(){unsigned long r;unsigned __int64 i=1;_BitScanReverse(&r,i);return r;}" HAVE_BITSCANREVERSE64)
374 elseif(CMAKE_CXX_COMPILER_ID MATCHES "XL")
375 check_cxx_source_compiles("int main(){ return __cntlz4(1);}" HAVE_CNTLZ4)
376 check_cxx_source_compiles("int main(){ return __cntlz8(1);}" HAVE_CNTLZ8)
379 include(CheckLibraryExists)
380 find_library(HAVE_LIBM m)
381 mark_as_advanced(HAVE_LIBM)
382 check_library_exists(rt clock_gettime "" HAVE_CLOCK_GETTIME)
383 check_library_exists(m feenableexcept "" HAVE_FEENABLEEXCEPT)
384 check_library_exists(m fedisableexcept "" HAVE_FEDISABLEEXCEPT)
386 include(TestSchedAffinity)
387 test_sched_affinity(HAVE_SCHED_AFFINITY)
389 # Aligned memory allocation. We need to check for both mm_malloc(),
390 # posix_memalign(), memalign(), and on windows also _aligned_malloc()
391 include(gmxTestMMMalloc)
392 gmx_test_mm_malloc(HAVE__MM_MALLOC)
393 check_cxx_symbol_exists(posix_memalign stdlib.h HAVE_POSIX_MEMALIGN)
394 check_cxx_symbol_exists(memalign stdlib.h HAVE_MEMALIGN)
396 # No need to waste time on this test on platforms where it will never be true
397 check_cxx_symbol_exists(_aligned_malloc stdlib.h HAVE__ALIGNED_MALLOC)
400 include(TestBigEndian)
401 test_big_endian(GMX_INTEGER_BIG_ENDIAN)
403 gmx_set_boolean(GMX_USE_NICE "HAVE_UNISTD_H AND HAVE_NICE")
405 # Management of GROMACS options for specific toolchains should go
406 # here. Because the initial settings for some of the main options have
407 # already happened, but things like library detection and MPI compiler
408 # feature detection have not, the docstrings for any over-rides of
409 # GROMACS defaults or user settings will make sense. Also, any
410 # toolchain-related reasons for choosing whether to detect various
411 # things can be sorted out now, before the detection takes place.
412 if(GMX_TARGET_FUJITSU_SPARC64)
413 include(gmxManageFujitsuSparc64)
416 ########################################################################
417 #Process MPI settings
418 ########################################################################
419 include(gmxManageMPI)
421 ########################################################################
422 #Process MiMiC settings
423 ########################################################################
424 include(gmxManageMimic)
426 ########################################################################
427 #Process shared/static library settings
428 ########################################################################
429 include(gmxManageSharedLibraries)
432 ########################################################################
433 # Specify install locations
434 ########################################################################
435 # Use GNUInstallDirs to set paths on multiarch systems.
436 include(GNUInstallDirs)
438 set(GMX_INSTALL_DATASUBDIR "gromacs" CACHE STRING "Subdirectory for GROMACS data under CMAKE_INSTALL_DATADIR")
439 mark_as_advanced(GMX_INSTALL_DATASUBDIR)
441 # Internal convenience so we do not have to join two path segments in the code
442 set(GMX_INSTALL_GMXDATADIR ${CMAKE_INSTALL_DATADIR}/${GMX_INSTALL_DATASUBDIR})
444 # If the nesting level wrt. the installation root is changed,
445 # gromacs-config.cmake.cmakein needs to be adapted.
446 set(GMX_INSTALL_CMAKEDIR ${CMAKE_INSTALL_DATAROOTDIR}/cmake)
448 # TODO: Make GMXRC adapt if this is changed
449 set(GMX_INSTALL_PKGCONFIGDIR ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
451 list(APPEND INSTALLED_HEADER_INCLUDE_DIRS ${CMAKE_INSTALL_INCLUDEDIR})
453 # Binary and library suffix options
454 include(gmxManageSuffixes)
457 ########################################################################
458 # Find external packages #
459 ########################################################################
461 # Unconditionally find the package, as it is also required for unit
462 # tests. This exports LIBXML2_FOUND, which we should not use because
463 # it does not tell us that linking will succeed. Instead, we test that
465 #if(DEFINED LIBXML2_LIBRARIES)
466 # set(LibXml2_FIND_QUIETLY TRUE)
468 #find_package(LibXml2)
469 #include(gmxTestLibXml2)
470 #gmx_test_libxml2(HAVE_LIBXML2)
471 #option(GMX_XML "Use libxml2 to parse xml files (currently has no effect)" ${HAVE_LIBXML2})
473 #mark_as_advanced(GMX_XML)
474 # Don't actually do anything, since libxml2 is currently not used by libgromacs
475 #if(GMX_XML AND NOT HAVE_LIBXML2)
476 # message(FATAL_ERROR "libxml2 not found. Set GMX_XML=OFF to compile without XML support")
479 # include_directories(${LIBXML2_INCLUDE_DIR})
480 # set(PKG_XML libxml-2.0)
481 # set(XML_LIBRARIES ${LIBXML2_LIBRARIES})
484 option(GMX_HWLOC "Use hwloc portable hardware locality library" OFF)
487 # Find quietly the second time.
488 if (HWLOC_FIND_QUIETLY_AFTER_FIRST_RUN)
489 set(HWLOC_FIND_QUIETLY TRUE)
491 find_package(HWLOC 1.5)
494 if (HWLOC_LIBRARIES MATCHES ".a$")
495 set(_STATIC_HWLOC TRUE)
498 gmx_check_if_changed(HWLOC_FOUND_CHANGED HWLOC_FOUND)
499 if (_STATIC_HWLOC AND HWLOC_FOUND_CHANGED AND NOT GMX_HWLOC_FORCE)
500 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.")
501 set(GMX_USE_HWLOC OFF)
503 set(GMX_USE_HWLOC ON)
507 include_directories(SYSTEM ${HWLOC_INCLUDE_DIRS})
508 list(APPEND GMX_EXTRA_LIBRARIES ${HWLOC_LIBRARIES})
510 elseif(GMX_HWLOC_FORCE)
511 message(FATAL_ERROR "HWLOC package support required, but not found.")
514 set(HWLOC_FIND_QUIETLY_AFTER_FIRST_RUN TRUE CACHE INTERNAL "Be quiet during future attempts to find HWLOC")
517 option(GMX_EXTERNAL_TINYXML2 "Use external TinyXML-2 instead of compiling the version bundled with GROMACS." OFF)
518 mark_as_advanced(GMX_EXTERNAL_TINYXML2)
519 if(GMX_EXTERNAL_TINYXML2)
520 # Find an external TinyXML-2 library.
521 find_package(TinyXML-2 3.0.0)
522 set(HAVE_TINYXML2 ${TinyXML2_FOUND})
523 if(NOT HAVE_TINYXML2)
524 message(FATAL_ERROR "External TinyXML-2 could not be found, please adjust your search paths")
528 option(GMX_EXTRAE "Add support for tracing using EXTRAE" OFF)
529 mark_as_advanced(GMX_EXTRAE)
534 include_directories(SYSTEM ${EXTRAE_INCLUDE_DIR})
537 message(FATAL_ERROR "EXTRAE library was not found. Please add the correct path to CMAKE_PREFIX_PATH")
541 option(GMX_X11 "Use X window system" OFF)
544 # X11 includes/libraries are only set in the ngmx subdirectory!
547 "X11 include files and/or libraries were not found. "
548 "Set GMX_X11=OFF to compile without X11 support. "
549 "gmx view will not be available.")
551 include_directories(SYSTEM ${X11_INCLUDE_DIR})
555 # Enable core threading facilities
556 tmpi_enable_core("${CMAKE_SOURCE_DIR}/src/external/thread_mpi/include")
558 # enable MPI functions
560 set(MPI_IN_PLACE_EXISTS 1)
562 # If atomics are manually disabled a define is needed because atomics.h doesn't depend on config.h
563 if (TMPI_ATOMICS_DISABLED)
564 add_definitions(-DTMPI_ATOMICS_DISABLED)
567 include(gmxManageTNG)
569 include(gmxManageLmfit)
573 string(TOUPPER "${GMX_GPU}" _gmx_gpu_uppercase)
574 if(${_gmx_gpu_uppercase} STREQUAL "CUDA")
575 include(gmxManageCuda)
576 elseif(${_gmx_gpu_uppercase} STREQUAL "OPENCL")
577 include(gmxManageOpenCL)
578 elseif(${_gmx_gpu_uppercase} STREQUAL "SYCL")
579 include(gmxManageSYCL)
582 message(WARNING "To use GPU acceleration efficiently, mdrun requires OpenMP multi-threading, which is currently not enabled.")
592 set(GMX_NATIVE_WINDOWS 1)
593 # This makes windows.h not declare min/max as macros that would break
594 # C++ code using std::min/std::max.
595 add_definitions(-DNOMINMAX)
598 option(GMX_BUILD_UNITTESTS "Build unit tests with BUILD_TESTING" ON)
599 mark_as_advanced(GMX_BUILD_UNITTESTS)
600 gmx_add_cache_dependency(GMX_BUILD_UNITTESTS BOOL BUILD_TESTING OFF)
602 ########################################################################
603 # Our own GROMACS tests
604 ########################################################################
606 include_directories(BEFORE ${CMAKE_SOURCE_DIR}/src)
607 include_directories(SYSTEM ${CMAKE_SOURCE_DIR}/src/external)
608 # Required for config.h, maybe should only be set in src/CMakeLists.txt
609 include_directories(BEFORE ${CMAKE_BINARY_DIR}/src)
611 include(gmxTestInlineASM)
612 gmx_test_inline_asm_gcc_x86(GMX_X86_GCC_INLINE_ASM)
614 include(gmxSetBuildInformation)
615 gmx_set_build_information()
617 # Anything but truly ancient x86 hardware should support rdtscp, so we enable it by default.
618 # The inline assembly calling it is only ever compiled on x86, so defaulting to ON is OK.
619 option(GMX_USE_RDTSCP "Use low-latency RDTSCP instruction for x86 CPU-based timers for mdrun execution; might need to be off when compiling for heterogeneous environments" ON)
620 mark_as_advanced(GMX_USE_RDTSCP)
622 include(gmxTestLargeFiles)
623 gmx_test_large_files(GMX_LARGEFILES)
625 include(gmxTestSignal)
626 gmx_test_sigusr1(HAVE_SIGUSR1)
628 include(gmxTestPipes)
629 gmx_test_pipes(HAVE_PIPES)
632 gmx_test_xdr(GMX_SYSTEM_XDR)
633 # Darwin has system XDR, but it uses a three-argument flavour of
634 # xdrproc_t that it guarantees will still work if you pass the normal
635 # two-argument xdr filters, but gcc 8 warns about the cast necessary
636 # to do that, so it's simpler to just use our own XDR library.
638 # TODO It would be better to craft a cmake test which fails if such
639 # XDR operations cause warnings, and succeeds otherwise, because it is
640 # generally preferable to use system libraries where possible.
641 if(NOT GMX_SYSTEM_XDR OR CMAKE_SYSTEM_NAME STREQUAL "Darwin")
642 set(GMX_INTERNAL_XDR 1)
646 ##################################################
647 # Process SIMD instruction settings
648 ##################################################
649 # This checks what flags to add in order to
650 # support the SIMD instructions we need, it sets
651 # correct defines for the SIMD instructions supported,
652 # and adds advanced options to control accuracy
653 # for SIMD math operations.
654 include(gmxManageSimd)
657 ##################################################
658 # Process FFT library settings
659 ##################################################
660 include(gmxManageFFTLibraries)
663 include(gmxManageLinearAlgebraLibraries)
665 include(gmxManagePluginSupport)
666 gmx_manage_plugin_support()
669 if(NOT GMX_VMD_PLUGIN_PATH)
674 # Link real-time library for POSIX timers. The check for clock_gettime
675 # confirms the linkability of rt.
676 if(HAVE_TIME_H AND HAVE_UNISTD_H AND HAVE_CLOCK_GETTIME)
677 list(APPEND GMX_EXTRA_LIBRARIES rt)
680 # Math and thread libraries must often come after all others when linking...
682 list(APPEND GMX_PUBLIC_LIBRARIES m)
685 option(GMX_NACL "Configure for Native Client builds" OFF)
687 list(APPEND GMX_EXTRA_LIBRARIES nosys)
688 set(GMX_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -lnosys")
689 # TODO: Is this still necessary with the check for its presence?
693 mark_as_advanced(GMX_NACL)
696 set(COREWRAP_INCLUDE_DIR "${CMAKE_SOURCE_DIR}/../corewrap" CACHE STRING
697 "Path to swindirect.h")
698 include_directories(${COREWRAP_INCLUDE_DIR})
701 option(GMX_BUILD_HELP "Build completions (requires that compiled binaries can be executed on build host) and install man pages if built (requires building the 'man' target manually)" OFF)
702 mark_as_advanced(GMX_BUILD_HELP)
703 if (GMX_BUILD_HELP AND SOURCE_IS_SOURCE_DISTRIBUTION AND BUILD_IS_INSOURCE)
705 "Rebuilding shell completions or man pages is not supported for "
706 "in-source builds from a source distribution. "
707 "Set GMX_BUILD_HELP=OFF or do an out-of-source build to proceed.")
710 # # # # # # # # # # NO MORE TESTS AFTER THIS LINE! # # # # # # # # # # #
711 # these are set after everything else
712 if (NOT GMX_SKIP_DEFAULT_CFLAGS)
713 set(CMAKE_EXE_LINKER_FLAGS "${FFT_LINKER_FLAGS} ${MPI_LINKER_FLAGS} ${CMAKE_EXE_LINKER_FLAGS}")
714 set(CMAKE_SHARED_LINKER_FLAGS "${FFT_LINKER_FLAGS} ${MPI_LINKER_FLAGS} ${CMAKE_SHARED_LINKER_FLAGS}")
716 message("Recommended flags which are not added because GMX_SKIP_DEFAULT_CFLAGS=yes:")
717 message("CMAKE_C_FLAGS: ${SIMD_C_FLAGS};${MPI_COMPILE_FLAGS};${EXTRA_C_FLAGS};${GMXC_CFLAGS}")
718 foreach(build_type ${build_types_with_explicit_flags})
719 message("CMAKE_C_FLAGS_${build_type}: ${GMXC_CFLAGS_${build_type}}")
721 message("CMAKE_CXX_FLAGS: ${DISABLE_SYCL_CXX_FLAGS};${SIMD_CXX_FLAGS};${MPI_COMPILE_FLAGS};${EXTRA_CXX_FLAGS};${GMXC_CXXFLAGS}")
722 foreach(build_type ${build_types_with_explicit_flags})
723 message("CMAKE_CXX_FLAGS_${build_type}: ${GMXC_CXXFLAGS_${build_type}}")
725 message("CMAKE_EXE_LINKER_FLAGS: ${FFT_LINKER_FLAGS} ${MPI_LINKER_FLAGS}")
726 message("CMAKE_SHARED_LINKER_FLAGS: ${FFT_LINKER_FLAGS} ${MPI_LINKER_FLAGS}")
728 # Allow `admin` directory to be easily conveyed to nested CMake commands.
729 set(GMX_ADMIN_DIR ${CMAKE_SOURCE_DIR}/admin)
731 ################################################################
732 # Shared library load path settings
733 ################################################################
734 if(NOT GMX_BUILD_SHARED_EXE)
736 set(CMAKE_SKIP_RPATH TRUE)
737 set(CMAKE_EXE_LINK_DYNAMIC_C_FLAGS) # remove -Wl,-Bdynamic
738 set(CMAKE_EXE_LINK_DYNAMIC_CXX_FLAGS)
740 # The build folder always has bin/ and lib/; if we are also going to
741 # install to lib/, then the installation RPATH works also in the build
742 # tree. This makes installation slightly faster (no need to rewrite the
743 # RPATHs), and makes the binaries in the build tree relocatable.
744 if(CMAKE_INSTALL_LIBDIR STREQUAL "lib")
745 set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
746 set(CMAKE_BUILD_WITH_INSTALL_NAME_DIR TRUE)
748 # Set the RPATH as relative to the executable location to make the
749 # binaries relocatable.
750 if(CMAKE_SYSTEM_NAME STREQUAL "Darwin") #Assume OS X >=10.5
751 set(CMAKE_INSTALL_RPATH "@loader_path/../${CMAKE_INSTALL_LIBDIR}")
752 set(CMAKE_INSTALL_NAME_DIR ${CMAKE_INSTALL_RPATH})
754 set(CMAKE_INSTALL_RPATH "\$ORIGIN/../${CMAKE_INSTALL_LIBDIR}")
756 set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
757 set(CMAKE_MACOSX_RPATH 1)
760 #COPYING file: Only necessary for binary distributions.
761 #Simpler to always install.
762 install(FILES COPYING DESTINATION ${GMX_INSTALL_GMXDATADIR} COMPONENT data)
764 if (GMX_BUILD_FOR_COVERAGE)
765 # Code heavy with asserts makes conditional coverage close to useless metric,
766 # as by design most of the false branches are impossible to trigger in
767 # correctly functioning code. And the benefit of testing those that could
768 # be triggered by using an API against its specification isn't usually
770 add_definitions(-DNDEBUG -DGMX_DISABLE_ASSERTS)
774 include(tests/CheckTarget.cmake)
777 # TODO: Determine control flow and defaults for package installation and testing use cases.
778 # Ref: https://gitlab.com/gromacs/gromacs/-/issues/2896
779 option(GMX_PYTHON_PACKAGE "Configure gmxapi Python package" OFF)
780 mark_as_advanced(GMX_PYTHON_PACKAGE)
782 if (NOT GMX_BUILD_MDRUN_ONLY)
783 find_package(ImageMagick QUIET COMPONENTS convert)
784 include(gmxTestImageMagick)
785 GMX_TEST_IMAGEMAGICK(IMAGE_CONVERT_POSSIBLE)
786 # TODO: Resolve circular dependency between docs, gromacs, and python_packaging
787 add_subdirectory(docs)
788 add_subdirectory(share)
789 add_subdirectory(scripts)
791 add_subdirectory(api)
792 add_subdirectory(src)
795 add_subdirectory(tests)
798 if(GMX_PYTHON_PACKAGE AND NOT GMX_BUILD_MDRUN_ONLY)
799 add_subdirectory(python_packaging)
802 gmx_cpack_write_config()
804 #######################
806 #######################
807 CONFIGURE_FILE( "${CMAKE_CURRENT_SOURCE_DIR}/cmake/cmake_uninstall.cmake.in"
808 "${CMAKE_CURRENT_BINARY_DIR}/cmake/cmake_uninstall.cmake"
810 ###########################
811 ADD_CUSTOM_TARGET(uninstall
812 "${CMAKE_COMMAND}" -P
813 "${CMAKE_CURRENT_BINARY_DIR}/cmake/cmake_uninstall.cmake")
814 ###########################
815 set_directory_properties(PROPERTIES
816 ADDITIONAL_MAKE_CLEAN_FILES "install_manifest.txt")