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
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
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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)
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 >=10.9 helps to find modern C++ compatibility,
47 # such as by defaulting to the Clang libc++ instead of libstdc++.
48 set(CMAKE_OSX_DEPLOYMENT_TARGET 10.9 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 14)
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 ${CMAKE_BINARY_DIR}/bin)
69 find_package(LibStdCpp)
71 # Set up common version variables, as well as general information about
72 # the build tree (whether the build is from a source package or from a git
73 # repository). Also declares a few functions that will be used for generating
74 # version info files later.
75 include(gmxBuildTreeInfo)
76 include(gmxVersionInfo)
78 if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT AND UNIX)
79 set(CMAKE_INSTALL_PREFIX "/usr/local/gromacs" CACHE STRING "Installation prefix (installation will need write permissions here)" FORCE)
81 if("${CMAKE_INSTALL_PREFIX}" STREQUAL "${CMAKE_BINARY_DIR}")
82 message(FATAL_ERROR "GROMACS cannot be installed into the build tree, choose a different location for CMAKE_INSTALL_PREFIX")
85 include(gmxBuildTypeReference)
86 include(gmxBuildTypeProfile)
87 include(gmxBuildTypeTSAN)
88 include(gmxBuildTypeASAN)
89 include(gmxBuildTypeMSAN)
90 include(gmxBuildTypeReleaseWithAssert)
92 if(NOT CMAKE_BUILD_TYPE)
93 set(CMAKE_BUILD_TYPE "Release" CACHE STRING "Choose the type of build, options are: Debug Release RelWithDebInfo MinSizeRel Reference RelWithAssert Profile TSAN ASAN MSAN." FORCE)
94 # Set the possible values of build type for cmake-gui
95 set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "Debug" "Release"
96 "MinSizeRel" "RelWithDebInfo" "Reference" "RelWithAssert" "Profile" "TSAN" "ASAN" "MSAN")
98 if(CMAKE_CONFIGURATION_TYPES)
99 # Add appropriate GROMACS-specific build types for the Visual
100 # Studio generator (Debug, Release, MinSizeRel and RelWithDebInfo
101 # are already present by default).
102 list(APPEND CMAKE_CONFIGURATION_TYPES "RelWithAssert" "Reference")
103 list(REMOVE_DUPLICATES CMAKE_CONFIGURATION_TYPES)
104 set(CMAKE_CONFIGURATION_TYPES "${CMAKE_CONFIGURATION_TYPES}" CACHE STRING
105 "List of configuration types"
108 set(build_types_with_explicit_flags RELEASE DEBUG RELWITHDEBINFO RELWITHASSERT MINSIZEREL PROFILE)
110 set_property(GLOBAL PROPERTY FIND_LIBRARY_USE_LIB64_PATHS ON)
112 include(gmxCTestUtilities)
115 include(gmxCPackUtilities)
118 # Variables that accumulate stuff influencing the installed headers
119 set(INSTALLED_HEADER_INCLUDE_DIRS "")
120 set(INSTALLED_HEADER_DEFINITIONS "")
122 ########################################################################
123 # Global non-cache variables for implementing the build system
124 ########################################################################
126 # These variables collect libraries that GROMACS requires for
127 # linking. They should be appended to with list(APPEND ${name}
128 # new-library) calls. They are:
129 # - Libraries that are required for libgromacs (only)
130 set(GMX_EXTRA_LIBRARIES "")
131 # - Libraries that are required for all code in the repository
132 set(GMX_COMMON_LIBRARIES "")
133 # - Libraries that all code linked against libgromacs needs
134 # (i.e., something that is exposed in installed headers).
135 set(GMX_PUBLIC_LIBRARIES "")
137 ########################################################################
138 # Check and warn if cache generated on a different host is being reused
139 ########################################################################
141 execute_process(COMMAND hostname
142 OUTPUT_VARIABLE TMP_HOSTNAME
143 OUTPUT_STRIP_TRAILING_WHITESPACE)
144 # Only check for host name if not running in a CI environment, as the cache might
145 # be reused there between different machines in different stages
146 if(GMX_BUILD_HOSTNAME AND NOT "${GMX_BUILD_HOSTNAME}" STREQUAL "${TMP_HOSTNAME}"
147 AND NOT DEFINED ENV{CI_JOB_ID})
149 The CMake cache, probably generated on a different host (${GMX_BUILD_HOSTNAME}),
150 is being reused! This could lead to inconsistencies; therefore, it is
151 recommended to regenerate the cache!")
153 set(GMX_BUILD_HOSTNAME "${TMP_HOSTNAME}" CACHE INTERNAL
154 "Hostname of the machine where the cache was generated.")
157 ########################################################################
158 # Detect architecture before setting options so we can alter defaults
159 ########################################################################
160 # Detect the architecture the compiler is targetting, detect
161 # SIMD instructions possibilities on that hardware, suggest SIMD instruction set
162 # to use if none is specified, and populate the cache option for CPU
164 include(gmxDetectTargetArchitecture)
165 gmx_detect_target_architecture()
167 ########################################################################
168 # User input options #
169 ########################################################################
170 include(gmxOptionUtilities)
172 set(CMAKE_PREFIX_PATH "" CACHE STRING "Extra locations to search for external libraries and tools (give directory without lib, bin, or include)")
174 # Fujitsu only has SIMD in double precision, so this will be faster
175 gmx_set_boolean(GMX_DOUBLE_DEFAULT GMX_TARGET_FUJITSU_SPARC64)
176 option(GMX_DOUBLE "Use double precision (much slower, use only if you really need it)" ${GMX_DOUBLE_DEFAULT})
177 option(GMX_RELAXED_DOUBLE_PRECISION "Accept single precision 1/sqrt(x) when using Fujitsu HPC-ACE SIMD" OFF)
178 mark_as_advanced(GMX_RELAXED_DOUBLE_PRECISION)
180 option(GMX_MPI "Build a parallel (message-passing) version of GROMACS" OFF)
181 option(GMX_THREAD_MPI "Build a thread-MPI-based multithreaded version of GROMACS (not compatible with MPI)" ON)
182 gmx_dependent_option(
184 "Enable MPI_IN_PLACE for MPIs that have it defined"
187 mark_as_advanced(GMX_MPI_IN_PLACE)
189 option(GMX_MIMIC "Enable MiMiC QM/MM interface (CPMD is required)" OFF)
191 option(GMX_FAHCORE "Build a library with mdrun functionality" OFF)
192 mark_as_advanced(GMX_FAHCORE)
194 option(GMX_COOL_QUOTES "Enable GROMACS cool quotes" ON)
195 mark_as_advanced(GMX_COOL_QUOTES)
196 gmx_add_cache_dependency(GMX_COOL_QUOTES BOOL "NOT GMX_FAHCORE" OFF)
198 option(GMX_USE_OPENCL "Enable OpenCL acceleration" OFF)
200 option(GMX_INSTALL_LEGACY_API "Install legacy headers" OFF)
202 # The earliest version of the CUDA toolkit that supports c++14 is 9.0
203 set(REQUIRED_CUDA_VERSION 9.0)
204 set(REQUIRED_CUDA_COMPUTE_CAPABILITY 3.0)
206 # OpenCL required version: 1.2 or newer
207 set(REQUIRED_OPENCL_MIN_VERSION_MAJOR 1)
208 set(REQUIRED_OPENCL_MIN_VERSION_MINOR 2)
209 set(REQUIRED_OPENCL_MIN_VERSION ${REQUIRED_OPENCL_MIN_VERSION_MAJOR}.${REQUIRED_OPENCL_MIN_VERSION_MINOR})
211 if(NOT GMX_USE_OPENCL)
212 # CUDA detection is done only if GMX_USE_OPENCL is OFF.
213 include(gmxManageGPU)
214 set(GMX_USE_CUDA ${GMX_GPU})
216 set(GMX_GPU_ACCELERATION_FRAMEWORK "GMX_GPU_CUDA")
218 set(GMX_GPU_ACCELERATION_FRAMEWORK "GMX_GPU_NONE")
221 #Now the OpenCL path (for both AMD and NVIDIA)
223 include(gmxManageOpenCL)
224 set(GMX_GPU_ACCELERATION_FRAMEWORK "GMX_GPU_OPENCL")
226 message(FATAL_ERROR "OpenCL requested but GPU option is not enabled (try -DGMX_GPU=on) ")
230 gmx_option_multichoice(
232 "SIMD instruction set for CPU kernels and compiler optimization"
234 AUTO None SSE2 SSE4.1 AVX_128_FMA AVX_256 AVX2_256 AVX2_128 AVX_512 AVX_512_KNL MIC ARM_NEON ARM_NEON_ASIMD IBM_VMX IBM_VSX Sparc64_HPC_ACE Reference)
237 set(GMX_FFT_LIBRARY_DEFAULT "mkl")
239 set(GMX_FFT_LIBRARY_DEFAULT "fftw3")
242 gmx_option_multichoice(
245 "${GMX_FFT_LIBRARY_DEFAULT}"
246 fftw3 mkl "fftpack[built-in]")
247 gmx_dependent_option(
249 "Download and build FFTW 3 during the GROMACS build process, rather than fall back on the really slow fftpack."
251 "GMX_FFT_LIBRARY STREQUAL FFTW3")
252 gmx_dependent_option(
253 GMX_DISABLE_FFTW_MEASURE
254 "Do not optimize FFTW setups (not needed with SSE)"
256 "GMX_FFT_LIBRARY STREQUAL FFTW3")
257 mark_as_advanced(GMX_BUILD_OWN_FFTW)
258 mark_as_advanced(GMX_DISABLE_FFTW_MEASURE)
260 gmx_option_multichoice(
262 "QM package for QM/MM"
264 none gaussian mopac gamess orca)
266 gmx_dependent_cache_variable(GMX_SIMD_REF_FLOAT_WIDTH "Reference SIMD single precision width" STRING "4" "GMX_SIMD STREQUAL REFERENCE")
267 gmx_dependent_cache_variable(GMX_SIMD_REF_DOUBLE_WIDTH "Reference SIMD double precision width" STRING "2" "GMX_SIMD STREQUAL REFERENCE")
269 # This should be moved to a separate NBNXN cmake module when that code is cleaned up and modularized
271 option(GMX_BROKEN_CALLOC "Work around broken calloc()" OFF)
272 mark_as_advanced(GMX_BROKEN_CALLOC)
274 option(GMX_OPENMP "Enable OpenMP-based multithreading" ON)
276 option(GMX_USE_TNG "Use the TNG library for trajectory I/O" ON)
278 option(GMX_BUILD_MDRUN_ONLY "Build and install only the mdrun binary" OFF)
280 option(GMX_CYCLE_SUBCOUNTERS "Enable cycle subcounters to get a more detailed cycle timings" OFF)
281 mark_as_advanced(GMX_CYCLE_SUBCOUNTERS)
283 option(GMX_SKIP_DEFAULT_CFLAGS "Don't automatically add suggested/required Compiler flags." OFF)
284 mark_as_advanced(GMX_SKIP_DEFAULT_CFLAGS)
286 option(GMX_BUILD_FOR_COVERAGE
287 "Tune build for better code coverage metrics (e.g., disable asserts)"
289 mark_as_advanced(GMX_BUILD_FOR_COVERAGE)
291 option(GMX_DEVELOPER_BUILD
292 "Enable Developer convenience features: always build unit-tests"
294 mark_as_advanced(GMX_DEVELOPER_BUILD)
296 gmx_set_boolean(GMX_COMPILER_WARNINGS_DEFAULT "NOT SOURCE_IS_SOURCE_DISTRIBUTION")
297 option(GMX_COMPILER_WARNINGS
298 "Enable a default set of compiler warnings"
299 ${GMX_COMPILER_WARNINGS_DEFAULT})
300 mark_as_advanced(GMX_COMPILER_WARNINGS)
301 # Always turn on compiler warnings with a developer build.
302 gmx_add_cache_dependency(GMX_COMPILER_WARNINGS BOOL "NOT GMX_DEVELOPER_BUILD" ON)
304 option(GMX_BUILD_SHARED_EXE
305 "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."
307 mark_as_advanced(GMX_BUILD_SHARED_EXE)
309 option(GMX_PHYSICAL_VALIDATION
310 "Include physical validation tests in ctest environment. These can then be called using 'make check-phys' or
311 'make check-all'. Warning: Running the physical validation tests takes significantly more time than other tests!"
313 mark_as_advanced(GMX_PHYSICAL_VALIDATION)
315 ######################################################################
316 # Detect OpenMP support
317 ######################################################################
318 # The OpenMP detection _must_ come before tests for other CFLAGS.
319 include(gmxManageOpenMP)
323 ######################################################################
325 # These need to be done early (before further tests).
326 #####################################################################
331 # These variables should be used for CMake-style lists (ie. separated
332 # by semicolons) of additional compiler flags which are not generated
333 # in gmxCFlags nor are SIMD or MPI related.
335 # TODO These variables should be consolidated into
336 # EXTRA_COMPILER_FLAGS so that we we don't perpetrate bugs where
337 # things that work in C compilation (e.g. merging from old branches)
338 # might not also work for C++ compilation.
339 set(EXTRA_C_FLAGS "")
340 set(EXTRA_CXX_FLAGS "")
342 # Run through a number of tests for buggy compilers and other issues
343 include(gmxTestCompilerProblems)
344 gmx_test_compiler_problems()
346 # Implement double-precision option. This is complicated because we
347 # need installed headers to use the precision mode of the build that
348 # produced the library, but cannot use config.h in that case. We also
349 # want such variables to always have a definition, because #if is more
350 # robust than #ifdef. So, we put this value on the compiler command
353 # GMX_RELAXED_DOUBLE_PRECISION does not need to be handled here,
354 # because no installed header needs it
356 set(GMX_DOUBLE_VALUE 1)
358 set(GMX_DOUBLE_VALUE 0)
360 add_definitions(-DGMX_DOUBLE=${GMX_DOUBLE_VALUE})
361 list(APPEND INSTALLED_HEADER_DEFINITIONS "-DGMX_DOUBLE=${GMX_DOUBLE_VALUE}")
363 option(GMX_IMD "Enable Interactive Molecular Dynamics (IMD) sessions, e.g. with VMD" ON)
364 if(GMX_IMD AND WIN32)
365 list(APPEND GMX_EXTRA_LIBRARIES "wsock32")
370 ########################################################################
371 # Basic system tests (standard libraries, headers, functions, types) #
372 ########################################################################
373 include(CheckIncludeFiles)
374 include(CheckIncludeFileCXX)
375 check_include_files(unistd.h HAVE_UNISTD_H)
376 check_include_files(pwd.h HAVE_PWD_H)
377 check_include_files(dirent.h HAVE_DIRENT_H)
378 check_include_files(time.h HAVE_TIME_H)
379 check_include_files(sys/time.h HAVE_SYS_TIME_H)
380 check_include_files(io.h HAVE_IO_H)
381 check_include_files(sched.h HAVE_SCHED_H)
382 check_include_files(xmmintrin.h HAVE_XMMINTRIN_H)
384 include(CheckCXXSymbolExists)
385 check_cxx_symbol_exists(gettimeofday sys/time.h HAVE_GETTIMEOFDAY)
386 check_cxx_symbol_exists(sysconf unistd.h HAVE_SYSCONF)
387 check_cxx_symbol_exists(nice unistd.h HAVE_NICE)
388 check_cxx_symbol_exists(fsync unistd.h HAVE_FSYNC)
389 check_cxx_symbol_exists(_fileno stdio.h HAVE__FILENO)
390 check_cxx_symbol_exists(fileno stdio.h HAVE_FILENO)
391 check_cxx_symbol_exists(_commit io.h HAVE__COMMIT)
392 check_cxx_symbol_exists(sigaction signal.h HAVE_SIGACTION)
394 # We cannot check for the __builtins as symbols, but check if code compiles
395 check_cxx_source_compiles("int main(){ return __builtin_clz(1);}" HAVE_BUILTIN_CLZ)
396 check_cxx_source_compiles("int main(){ return __builtin_clzll(1);}" HAVE_BUILTIN_CLZLL)
398 check_cxx_source_compiles("#include <intrin.h>\n int main(){unsigned long r;unsigned long i=1;_BitScanReverse(&r,i);return r;}" HAVE_BITSCANREVERSE)
399 check_cxx_source_compiles("#include <intrin.h>\n int main(){unsigned long r;unsigned __int64 i=1;_BitScanReverse(&r,i);return r;}" HAVE_BITSCANREVERSE64)
400 elseif(CMAKE_CXX_COMPILER_ID MATCHES "XL")
401 check_cxx_source_compiles("int main(){ return __cntlz4(1);}" HAVE_CNTLZ4)
402 check_cxx_source_compiles("int main(){ return __cntlz8(1);}" HAVE_CNTLZ8)
405 include(CheckLibraryExists)
406 find_library(HAVE_LIBM m)
407 mark_as_advanced(HAVE_LIBM)
408 check_library_exists(rt clock_gettime "" HAVE_CLOCK_GETTIME)
409 check_library_exists(m feenableexcept "" HAVE_FEENABLEEXCEPT)
410 check_library_exists(m fedisableexcept "" HAVE_FEDISABLEEXCEPT)
412 include(TestSchedAffinity)
413 test_sched_affinity(HAVE_SCHED_AFFINITY)
415 # Aligned memory allocation. We need to check for both mm_malloc(),
416 # posix_memalign(), memalign(), and on windows also _aligned_malloc()
417 include(gmxTestMMMalloc)
418 gmx_test_mm_malloc(HAVE__MM_MALLOC)
419 check_cxx_symbol_exists(posix_memalign stdlib.h HAVE_POSIX_MEMALIGN)
420 check_cxx_symbol_exists(memalign stdlib.h HAVE_MEMALIGN)
422 # No need to waste time on this test on platforms where it will never be true
423 check_cxx_symbol_exists(_aligned_malloc stdlib.h HAVE__ALIGNED_MALLOC)
426 include(TestBigEndian)
427 test_big_endian(GMX_INTEGER_BIG_ENDIAN)
429 gmx_set_boolean(GMX_USE_NICE "HAVE_UNISTD_H AND HAVE_NICE")
431 # Management of GROMACS options for specific toolchains should go
432 # here. Because the initial settings for some of the main options have
433 # already happened, but things like library detection and MPI compiler
434 # feature detection have not, the docstrings for any over-rides of
435 # GROMACS defaults or user settings will make sense. Also, any
436 # toolchain-related reasons for choosing whether to detect various
437 # things can be sorted out now, before the detection takes place.
438 if(GMX_TARGET_FUJITSU_SPARC64)
439 include(gmxManageFujitsuSparc64)
442 ########################################################################
443 #Process MPI settings
444 ########################################################################
445 include(gmxManageMPI)
447 ########################################################################
448 #Process MiMiC settings
449 ########################################################################
450 include(gmxManageMimic)
452 ########################################################################
453 #Process shared/static library settings
454 ########################################################################
455 include(gmxManageSharedLibraries)
458 ########################################################################
459 # Find external packages #
460 ########################################################################
462 # Unconditionally find the package, as it is also required for unit
463 # tests. This exports LIBXML2_FOUND, which we should not use because
464 # it does not tell us that linking will succeed. Instead, we test that
466 #if(DEFINED LIBXML2_LIBRARIES)
467 # set(LibXml2_FIND_QUIETLY TRUE)
469 #find_package(LibXml2)
470 #include(gmxTestLibXml2)
471 #gmx_test_libxml2(HAVE_LIBXML2)
472 #option(GMX_XML "Use libxml2 to parse xml files (currently has no effect)" ${HAVE_LIBXML2})
474 #mark_as_advanced(GMX_XML)
475 # Don't actually do anything, since libxml2 is currently not used by libgromacs
476 #if(GMX_XML AND NOT HAVE_LIBXML2)
477 # message(FATAL_ERROR "libxml2 not found. Set GMX_XML=OFF to compile without XML support")
480 # include_directories(${LIBXML2_INCLUDE_DIR})
481 # set(PKG_XML libxml-2.0)
482 # set(XML_LIBRARIES ${LIBXML2_LIBRARIES})
487 "Use hwloc portable hardware locality library"
491 # Find quietly the second time.
492 if (HWLOC_FIND_QUIETLY_AFTER_FIRST_RUN)
493 set(HWLOC_FIND_QUIETLY TRUE)
495 find_package(HWLOC 1.5)
498 if (HWLOC_LIBRARIES MATCHES ".a$")
499 set(_STATIC_HWLOC TRUE)
502 gmx_check_if_changed(HWLOC_FOUND_CHANGED HWLOC_FOUND)
503 if (_STATIC_HWLOC AND HWLOC_FOUND_CHANGED AND NOT GMX_HWLOC_FORCE)
504 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.")
505 set(GMX_USE_HWLOC OFF)
507 set(GMX_USE_HWLOC ON)
511 include_directories(SYSTEM ${HWLOC_INCLUDE_DIRS})
512 list(APPEND GMX_EXTRA_LIBRARIES ${HWLOC_LIBRARIES})
514 elseif(GMX_HWLOC_FORCE)
515 message(FATAL_ERROR "HWLOC package support required, but not found.")
518 set(HWLOC_FIND_QUIETLY_AFTER_FIRST_RUN TRUE CACHE INTERNAL "Be quiet during future attempts to find HWLOC")
521 option(GMX_EXTERNAL_TINYXML2 "Use external TinyXML-2 instead of compiling the version bundled with GROMACS." OFF)
522 mark_as_advanced(GMX_EXTERNAL_TINYXML2)
523 if(GMX_EXTERNAL_TINYXML2)
524 # Find an external TinyXML-2 library.
525 find_package(TinyXML-2 3.0.0)
526 set(HAVE_TINYXML2 ${TinyXML2_FOUND})
527 if(NOT HAVE_TINYXML2)
528 message(FATAL_ERROR "External TinyXML-2 could not be found, please adjust your search paths")
532 option(GMX_EXTRAE "Add support for tracing using EXTRAE" OFF)
533 mark_as_advanced(GMX_EXTRAE)
538 include_directories(SYSTEM ${EXTRAE_INCLUDE_DIR})
541 message(FATAL_ERROR "EXTRAE library was not found. Please add the correct path to CMAKE_PREFIX_PATH")
545 option(GMX_X11 "Use X window system" OFF)
548 # X11 includes/libraries are only set in the ngmx subdirectory!
551 "X11 include files and/or libraries were not found. "
552 "Set GMX_X11=OFF to compile without X11 support. "
553 "gmx view will not be available.")
555 include_directories(SYSTEM ${X11_INCLUDE_DIR})
559 # Enable core threading facilities
560 tmpi_enable_core("${CMAKE_SOURCE_DIR}/src/external/thread_mpi/include")
562 # enable MPI functions
564 set(MPI_IN_PLACE_EXISTS 1)
566 # If atomics are manually disabled a define is needed because atomics.h doesn't depend on config.h
567 if (TMPI_ATOMICS_DISABLED)
568 add_definitions(-DTMPI_ATOMICS_DISABLED)
571 include(gmxManageTNG)
573 include(gmxManageLmfit)
576 # now that we have detected the dependencies, do the second configure pass
579 list(APPEND GMX_EXTRA_LIBRARIES ${GMX_CUDA_CLANG_LINK_LIBS})
580 link_directories("${GMX_CUDA_CLANG_LINK_DIRS}")
589 set(GMX_NATIVE_WINDOWS 1)
590 # This makes windows.h not declare min/max as macros that would break
591 # C++ code using std::min/std::max.
592 add_definitions(-DNOMINMAX)
595 option(GMX_BUILD_UNITTESTS "Build unit tests with BUILD_TESTING" ON)
596 mark_as_advanced(GMX_BUILD_UNITTESTS)
597 gmx_add_cache_dependency(GMX_BUILD_UNITTESTS BOOL BUILD_TESTING OFF)
599 ########################################################################
600 # Our own GROMACS tests
601 ########################################################################
603 include_directories(BEFORE ${CMAKE_SOURCE_DIR}/src)
604 # Required for config.h, maybe should only be set in src/CMakeLists.txt
605 include_directories(BEFORE ${CMAKE_BINARY_DIR}/src)
607 include(gmxTestInlineASM)
608 gmx_test_inline_asm_gcc_x86(GMX_X86_GCC_INLINE_ASM)
610 include(gmxSetBuildInformation)
611 gmx_set_build_information()
613 gmx_option_multichoice(
615 "Use low-latency RDTSCP instruction for CPU-based timers for mdrun execution; might need to be off when compiling for heterogeneous environments)"
618 mark_as_advanced(GMX_USE_RDTSCP)
620 macro(gmx_check_rdtscp)
621 if (CPU_DETECTION_FEATURES MATCHES "rdtscp")
623 set(RDTSCP_DETECTION_MESSAGE " - detected on the build host")
625 set(RDTSCP_DETECTION_MESSAGE " - not detected on the build host")
630 if (GMX_USE_RDTSCP STREQUAL "ON")
632 elseif(GMX_USE_RDTSCP STREQUAL "DETECT")
634 elseif(GMX_USE_RDTSCP STREQUAL "AUTO")
635 # If the user specified automated SIMD selection, that the choice
636 # is made based on detection on the build host. If so, then RDTSCP
637 # should be chosen the same way.
639 # If the user specified an AVX SIMD level (e.g. when
640 # cross-compiling GROMACS) then they will get our best guess, ie
641 # that in practice AVX mostly correlates with rdtscp (and anyway
642 # is only relevant in rather old x86 hardware).
643 if (GMX_SIMD STREQUAL "AUTO")
645 elseif (GMX_SIMD MATCHES "AVX")
649 gmx_check_if_changed(HAVE_RDTSCP_CHANGED HAVE_RDTSCP)
650 if (HAVE_RDTSCP_CHANGED)
652 message(STATUS "Enabling RDTSCP support${RDTSCP_DETECTION_MESSAGE}")
654 message(STATUS "Disabling RDTSCP support${RDTSCP_DETECTION_MESSAGE}")
658 include(gmxTestLargeFiles)
659 gmx_test_large_files(GMX_LARGEFILES)
661 include(gmxTestSignal)
662 gmx_test_sigusr1(HAVE_SIGUSR1)
664 include(gmxTestPipes)
665 gmx_test_pipes(HAVE_PIPES)
668 gmx_test_xdr(GMX_SYSTEM_XDR)
669 # Darwin has system XDR, but it uses a three-argument flavour of
670 # xdrproc_t that it guarantees will still work if you pass the normal
671 # two-argument xdr filters, but gcc 8 warns about the cast necessary
672 # to do that, so it's simpler to just use our own XDR library.
674 # TODO It would be better to craft a cmake test which fails if such
675 # XDR operations cause warnings, and succeeds otherwise, because it is
676 # generally preferable to use system libraries where possible.
677 if(NOT GMX_SYSTEM_XDR OR CMAKE_SYSTEM_NAME STREQUAL "Darwin")
678 set(GMX_INTERNAL_XDR 1)
682 ##################################################
683 # Process SIMD instruction settings
684 ##################################################
685 # This checks what flags to add in order to
686 # support the SIMD instructions we need, it sets
687 # correct defines for the SIMD instructions supported,
688 # and adds advanced options to control accuracy
689 # for SIMD math operations.
690 include(gmxManageSimd)
693 include(gmxManageCycleCounters)
694 gmx_manage_cycle_counters()
696 # Process QM/MM Settings
697 if(${GMX_QMMM_PROGRAM} STREQUAL "GAUSSIAN")
698 set(GMX_QMMM_GAUSSIAN 1)
699 elseif(${GMX_QMMM_PROGRAM} STREQUAL "MOPAC")
700 set(GMX_QMMM_MOPAC 1)
701 elseif(${GMX_QMMM_PROGRAM} STREQUAL "GAMESS")
702 set(GMX_QMMM_GAMESS 1)
703 elseif(${GMX_QMMM_PROGRAM} STREQUAL "ORCA")
705 elseif(${GMX_QMMM_PROGRAM} STREQUAL "NONE")
708 gmx_invalid_option_value(GMX_QMMM_PROGRAM)
712 ##################################################
713 # Process FFT library settings
714 ##################################################
715 include(gmxManageFFTLibraries)
718 include(gmxManageLinearAlgebraLibraries)
720 include(gmxManagePluginSupport)
723 if(NOT GMX_VMD_PLUGIN_PATH)
728 # Link real-time library for POSIX timers. The check for clock_gettime
729 # confirms the linkability of rt.
730 if(HAVE_TIME_H AND HAVE_UNISTD_H AND HAVE_CLOCK_GETTIME)
731 list(APPEND GMX_EXTRA_LIBRARIES rt)
734 # Math and thread libraries must often come after all others when linking...
736 list(APPEND GMX_PUBLIC_LIBRARIES m)
739 option(GMX_NACL "Configure for Native Client builds" OFF)
741 list(APPEND GMX_EXTRA_LIBRARIES nosys)
742 set(GMX_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -lnosys")
743 # TODO: Is this still necessary with the check for its presence?
747 mark_as_advanced(GMX_NACL)
750 set(COREWRAP_INCLUDE_DIR "${CMAKE_SOURCE_DIR}/../corewrap" CACHE STRING
751 "Path to swindirect.h")
752 include_directories(${COREWRAP_INCLUDE_DIR})
755 # Value of GMX_BUILD_HELP=AUTO tries to generate things, but will only
756 # produce warnings if that fails.
757 set(build_help_default AUTO)
758 if (SOURCE_IS_SOURCE_DISTRIBUTION OR CMAKE_CROSSCOMPILING)
759 set(build_help_default OFF)
761 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)" ${build_help_default})
762 mark_as_advanced(GMX_BUILD_HELP)
763 if (GMX_BUILD_HELP AND SOURCE_IS_SOURCE_DISTRIBUTION AND BUILD_IS_INSOURCE)
765 "Rebuilding shell completions or man pages is not supported for "
766 "in-source builds from a source distribution. "
767 "Set GMX_BUILD_HELP=OFF or do an out-of-source build to proceed.")
770 # # # # # # # # # # NO MORE TESTS AFTER THIS LINE! # # # # # # # # # # #
771 # these are set after everything else
772 if (NOT GMX_SKIP_DEFAULT_CFLAGS)
773 set(CMAKE_EXE_LINKER_FLAGS "${FFT_LINKER_FLAGS} ${MPI_LINKER_FLAGS} ${CMAKE_EXE_LINKER_FLAGS}")
774 set(CMAKE_SHARED_LINKER_FLAGS "${FFT_LINKER_FLAGS} ${MPI_LINKER_FLAGS} ${CMAKE_SHARED_LINKER_FLAGS}")
776 message("Recommended flags which are not added because GMX_SKIP_DEFAULT_CFLAGS=yes:")
777 message("CMAKE_C_FLAGS: ${SIMD_C_FLAGS};${MPI_COMPILE_FLAGS};${EXTRA_C_FLAGS};${GMXC_CFLAGS}")
778 foreach(build_type ${build_types_with_explicit_flags})
779 message("CMAKE_C_FLAGS_${build_type}: ${GMXC_CFLAGS_${build_type}}")
781 message("CMAKE_CXX_FLAGS: ${SIMD_CXX_FLAGS};${MPI_COMPILE_FLAGS};${EXTRA_CXX_FLAGS};${GMXC_CXXFLAGS}")
782 foreach(build_type ${build_types_with_explicit_flags})
783 message("CMAKE_CXX_FLAGS_${build_type}: ${GMXC_CXXFLAGS_${build_type}}")
785 message("CMAKE_EXE_LINKER_FLAGS: ${FFT_LINKER_FLAGS} ${MPI_LINKER_FLAGS}")
786 message("CMAKE_SHARED_LINKER_FLAGS: ${FFT_LINKER_FLAGS} ${MPI_LINKER_FLAGS}")
789 ########################################################################
790 # Specify install locations
791 ########################################################################
792 # Use GNUInstallDirs to set paths on multiarch systems.
793 include(GNUInstallDirs)
795 set(GMX_INSTALL_DATASUBDIR "gromacs" CACHE STRING "Subdirectory for GROMACS data under CMAKE_INSTALL_DATADIR")
796 mark_as_advanced(GMX_INSTALL_DATASUBDIR)
798 # Internal convenience so we do not have to join two path segments in the code
799 set(GMX_INSTALL_GMXDATADIR ${CMAKE_INSTALL_DATADIR}/${GMX_INSTALL_DATASUBDIR})
801 # If the nesting level wrt. the installation root is changed,
802 # gromacs-config.cmake.cmakein needs to be adapted.
803 set(GMX_INSTALL_CMAKEDIR ${CMAKE_INSTALL_DATAROOTDIR}/cmake)
805 # TODO: Make GMXRC adapt if this is changed
806 set(GMX_INSTALL_PKGCONFIGDIR ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
807 set(GMX_INSTALL_OCLDIR ${GMX_INSTALL_GMXDATADIR}/opencl)
809 list(APPEND INSTALLED_HEADER_INCLUDE_DIRS ${CMAKE_INSTALL_INCLUDEDIR})
811 # Binary and library suffix options
812 include(gmxManageSuffixes)
814 ################################################################
815 # Shared library load path settings
816 ################################################################
817 if(NOT GMX_BUILD_SHARED_EXE)
819 set(CMAKE_SKIP_RPATH TRUE)
820 set(CMAKE_EXE_LINK_DYNAMIC_C_FLAGS) # remove -Wl,-Bdynamic
821 set(CMAKE_EXE_LINK_DYNAMIC_CXX_FLAGS)
823 # The build folder always has bin/ and lib/; if we are also going to
824 # install to lib/, then the installation RPATH works also in the build
825 # tree. This makes installation slightly faster (no need to rewrite the
826 # RPATHs), and makes the binaries in the build tree relocatable.
827 if(CMAKE_INSTALL_LIBDIR STREQUAL "lib")
828 set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
829 set(CMAKE_BUILD_WITH_INSTALL_NAME_DIR TRUE)
831 # Set the RPATH as relative to the executable location to make the
832 # binaries relocatable.
833 if(CMAKE_SYSTEM_NAME STREQUAL "Darwin") #Assume OS X >=10.5
834 set(CMAKE_INSTALL_RPATH "@loader_path/../${CMAKE_INSTALL_LIBDIR}")
835 set(CMAKE_INSTALL_NAME_DIR ${CMAKE_INSTALL_RPATH})
837 set(CMAKE_INSTALL_RPATH "\$ORIGIN/../${CMAKE_INSTALL_LIBDIR}")
839 set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
840 set(CMAKE_MACOSX_RPATH 1)
843 #COPYING file: Only necessary for binary distributions.
844 #Simpler to always install.
845 install(FILES COPYING DESTINATION ${GMX_INSTALL_GMXDATADIR} COMPONENT data)
847 if (GMX_BUILD_FOR_COVERAGE)
848 # Code heavy with asserts makes conditional coverage close to useless metric,
849 # as by design most of the false branches are impossible to trigger in
850 # correctly functioning code. And the benefit of testing those that could
851 # be triggered by using an API against its specification isn't usually
853 add_definitions(-DNDEBUG -DGMX_DISABLE_ASSERTS)
857 include(tests/CheckTarget.cmake)
860 # TODO: Determine control flow and defaults for package installation and testing use cases.
861 # Ref: http://redmine.gromacs.org/issues/2896
862 option(GMX_PYTHON_PACKAGE "Configure gmxapi Python package" OFF)
863 mark_as_advanced(GMX_PYTHON_PACKAGE)
865 if (NOT GMX_BUILD_MDRUN_ONLY)
866 # Note: Though only documented as an output variable, PYTHON_EXECUTABLE is
867 # also effective as a CMake input variable to effectively hint the location
868 # of the Python interpreter. This may be helpful in environments with both
869 # Python 2 and Python 3 on the default PATH.
870 # Ref: https://cmake.org/cmake/help/latest/module/FindPythonInterp.html
871 if(FIND_PACKAGE_MESSAGE_DETAILS_PythonInterp)
872 # Keep quiet on subsequent runs of cmake
873 set(PythonInterp_FIND_QUIETLY ON)
875 # Older CMake versions might not search for Python newer than 3.7.
876 set(Python_ADDITIONAL_VERSIONS 3.8)
877 if(GMX_PYTHON_PACKAGE)
878 find_package(PythonInterp 3.5 REQUIRED)
879 # Note: PythonLibs will be found later by pybind11.
880 # TODO: (issue #2998) When CMake >= 3.12 is required, update detection.
881 # I.e. find_package(Python3 3.5 COMPONENTS Interpreter Development REQUIRED)
883 find_package(PythonInterp 3.5)
885 find_package(ImageMagick QUIET COMPONENTS convert)
886 include(gmxTestImageMagick)
887 GMX_TEST_IMAGEMAGICK(IMAGE_CONVERT_POSSIBLE)
888 # TODO: Resolve circular dependency between docs, gromacs, and python_packaging
889 add_subdirectory(docs)
890 add_subdirectory(share)
891 add_subdirectory(scripts)
893 add_subdirectory(src)
896 add_subdirectory(tests)
899 if(GMX_PYTHON_PACKAGE AND NOT GMX_BUILD_MDRUN_ONLY)
900 add_subdirectory(python_packaging)
903 gmx_cpack_write_config()
905 # Issue a warning if NVIDIA GPUs were detected, but CUDA was not found.
906 # Don't bother the user after the first configure pass.
907 if ((CUDA_NOTFOUND_AUTO AND GMX_DETECT_GPU_AVAILABLE) AND NOT GMX_GPU_DETECTION_DONE)
908 message(WARNING "${CUDA_NOTFOUND_MESSAGE}")
910 set(GMX_GPU_DETECTION_DONE TRUE CACHE INTERNAL "Whether GPU detection has already been done")
912 #######################
914 #######################
915 CONFIGURE_FILE( "${CMAKE_CURRENT_SOURCE_DIR}/cmake/cmake_uninstall.cmake.in"
916 "${CMAKE_CURRENT_BINARY_DIR}/cmake/cmake_uninstall.cmake"
918 ###########################
919 ADD_CUSTOM_TARGET(uninstall
920 "${CMAKE_COMMAND}" -P
921 "${CMAKE_CURRENT_BINARY_DIR}/cmake/cmake_uninstall.cmake")
922 ###########################
923 set_directory_properties(PROPERTIES
924 ADDITIONAL_MAKE_CLEAN_FILES "install_manifest.txt")