1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
find_package(Eigen3 NO_MODULE)
if(EIGEN3_FOUND)
set(DOWNLOAD_EIGEN3_DEFAULT OFF)
else()
set(DOWNLOAD_EIGEN3_DEFAULT ON)
endif()
option(DOWNLOAD_EIGEN3 "Download Eigen3 instead of using an already installed one)" ${DOWNLOAD_EIGEN3_DEFAULT})
if(DOWNLOAD_EIGEN3)
message(STATUS "Eigen3 download requested - we will build our own")
set(EIGEN3_URL "${LAMMPS_THIRDPARTY_URL}/eigen-3.4.0.tar.gz" CACHE STRING "URL for Eigen3 tarball")
set(EIGEN3_MD5 "4c527a9171d71a72a9d4186e65bea559" CACHE STRING "MD5 checksum of Eigen3 tarball")
mark_as_advanced(EIGEN3_URL)
mark_as_advanced(EIGEN3_MD5)
include(ExternalProject)
ExternalProject_Add(Eigen3_build
URL ${EIGEN3_URL}
URL_MD5 ${EIGEN3_MD5}
CONFIGURE_COMMAND "" BUILD_COMMAND "" INSTALL_COMMAND ""
)
ExternalProject_get_property(Eigen3_build SOURCE_DIR)
add_library(LAMMPS::EIGEN3 INTERFACE IMPORTED)
set_target_properties(LAMMPS::EIGEN3 PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${SOURCE_DIR}")
target_link_libraries(lammps PRIVATE LAMMPS::EIGEN3)
add_dependencies(LAMMPS::EIGEN3 Eigen3_build)
else()
find_package(Eigen3 NO_MODULE)
mark_as_advanced(Eigen3_DIR)
if(NOT EIGEN3_FOUND)
message(FATAL_ERROR "Eigen3 not found, help CMake to find it by setting EIGEN3_INCLUDE_DIR, or set DOWNLOAD_EIGEN3=ON to download it")
endif()
target_link_libraries(lammps PRIVATE Eigen3::Eigen)
endif()
# PGI/Nvidia compiler internals collide with vector intrinsics support in Eigen3
if((CMAKE_CXX_COMPILER_ID STREQUAL "PGI") OR (CMAKE_CXX_COMPILER_ID STREQUAL "NVHPC"))
target_compile_definitions(lammps PRIVATE -DEIGEN_DONT_VECTORIZE)
endif()
target_compile_definitions(lammps PRIVATE -DEIGEN_NO_CUDA)
|
