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set(VTK_SMP_IMPLEMENTATION_TYPE "Sequential"
CACHE STRING "Which multi-threaded parallelism implementation to use. Options are Sequential, STDThread, OpenMP or TBB")
set_property(CACHE VTK_SMP_IMPLEMENTATION_TYPE
PROPERTY
STRINGS Sequential OpenMP TBB STDThread)
if (NOT (VTK_SMP_IMPLEMENTATION_TYPE STREQUAL "OpenMP" OR
VTK_SMP_IMPLEMENTATION_TYPE STREQUAL "TBB" OR
VTK_SMP_IMPLEMENTATION_TYPE STREQUAL "Sequential"))
set_property(CACHE VTK_SMP_IMPLEMENTATION_TYPE
PROPERTY
VALUE "STDThread")
endif ()
option(VTK_SMP_ENABLE_SEQUENTIAL "Enable Sequential backend" ON)
option(VTK_SMP_ENABLE_STDTHREAD "Enable STDThread backend" ON)
# Force option to be ON if VTK_SMP_IMPLEMENTATION_TYPE equal to the backend otherwise it's OFF by default
cmake_dependent_option(VTK_SMP_ENABLE_TBB "Enable TBB backend" OFF
"NOT VTK_SMP_IMPLEMENTATION_TYPE STREQUAL TBB" ON)
cmake_dependent_option(VTK_SMP_ENABLE_OPENMP "Enable OpenMP backend" OFF
"NOT VTK_SMP_IMPLEMENTATION_TYPE STREQUAL OpenMP" ON)
mark_as_advanced(
VTK_SMP_ENABLE_SEQUENTIAL
VTK_SMP_ENABLE_STDTHREAD
VTK_SMP_ENABLE_TBB
VTK_SMP_ENABLE_OPENMP)
set(vtk_smp_default_name)
string(TOUPPER "${VTK_SMP_IMPLEMENTATION_TYPE}" vtk_smp_default_name)
if (NOT VTK_SMP_ENABLE_${vtk_smp_default_name})
message(FATAL_ERROR
"VTK_SMP_ENABLE_${vtk_smp_default_name} must be enabled as "
"VTK_SMP_IMPLEMENTATION_TYPE is set to ${VTK_SMP_IMPLEMENTATION_TYPE}.")
endif()
set(vtk_smp_defines)
set(vtk_smp_use_default_atomics ON)
set(vtk_smp_backends)
if (VTK_SMP_ENABLE_TBB)
vtk_module_find_package(PACKAGE TBB)
list(APPEND vtk_smp_libraries
TBB::tbb)
set(vtk_smp_enable_tbb 1)
list(APPEND vtk_smp_backends "TBB")
set(vtk_smp_use_default_atomics OFF)
set(vtk_smp_implementation_dir SMP/TBB)
list(APPEND vtk_smp_sources
"${vtk_smp_implementation_dir}/vtkSMPToolsImpl.cxx")
list(APPEND vtk_smp_nowrap_headers
"${vtk_smp_implementation_dir}/vtkSMPThreadLocalImpl.h")
list(APPEND vtk_smp_templates
"${vtk_smp_implementation_dir}/vtkSMPToolsImpl.txx")
endif()
if (VTK_SMP_ENABLE_OPENMP)
vtk_module_find_package(PACKAGE OpenMP)
list(APPEND vtk_smp_libraries
OpenMP::OpenMP_CXX)
set(vtk_smp_enable_openmp 1)
list(APPEND vtk_smp_backends "OpenMP")
set(vtk_smp_implementation_dir SMP/OpenMP)
list(APPEND vtk_smp_sources
"${vtk_smp_implementation_dir}/vtkSMPToolsImpl.cxx"
"${vtk_smp_implementation_dir}/vtkSMPThreadLocalBackend.cxx")
list(APPEND vtk_smp_nowrap_headers
"${vtk_smp_implementation_dir}/vtkSMPThreadLocalImpl.h"
"${vtk_smp_implementation_dir}/vtkSMPThreadLocalBackend.h")
list(APPEND vtk_smp_templates
"${vtk_smp_implementation_dir}/vtkSMPToolsImpl.txx")
if (OpenMP_CXX_SPEC_DATE AND NOT "${OpenMP_CXX_SPEC_DATE}" LESS "201107")
set(vtk_smp_use_default_atomics OFF)
else()
message(WARNING
"Required OpenMP version (3.1) for atomics not detected. Using default "
"atomics implementation.")
endif()
endif()
if (VTK_SMP_ENABLE_STDTHREAD)
set(vtk_smp_enable_stdthread 1)
set(vtk_smp_implementation_dir SMP/STDThread)
list(APPEND vtk_smp_backends "STDThread")
list(APPEND vtk_smp_sources
"${vtk_smp_implementation_dir}/vtkSMPToolsImpl.cxx"
"${vtk_smp_implementation_dir}/vtkSMPThreadLocalBackend.cxx"
"${vtk_smp_implementation_dir}/vtkSMPThreadPool.cxx")
list(APPEND vtk_smp_nowrap_headers
"${vtk_smp_implementation_dir}/vtkSMPThreadLocalImpl.h"
"${vtk_smp_implementation_dir}/vtkSMPThreadLocalBackend.h"
"${vtk_smp_implementation_dir}/vtkSMPThreadPool.h")
list(APPEND vtk_smp_templates
"${vtk_smp_implementation_dir}/vtkSMPToolsImpl.txx")
endif()
if (VTK_SMP_ENABLE_SEQUENTIAL)
set(vtk_smp_enable_sequential 1)
set(vtk_smp_implementation_dir SMP/Sequential)
list(APPEND vtk_smp_backends "Sequential")
list(APPEND vtk_smp_sources
"${vtk_smp_implementation_dir}/vtkSMPToolsImpl.cxx")
list(APPEND vtk_smp_nowrap_headers
"${vtk_smp_implementation_dir}/vtkSMPThreadLocalImpl.h")
list(APPEND vtk_smp_templates
"${vtk_smp_implementation_dir}/vtkSMPToolsImpl.txx")
endif()
set_property(GLOBAL
PROPERTY
_vtk_smp_backends "${vtk_smp_backends}")
if (vtk_smp_use_default_atomics)
include(CheckSymbolExists)
include("${CMAKE_CURRENT_SOURCE_DIR}/vtkTestBuiltins.cmake")
set(vtk_atomics_default_impl_dir "${CMAKE_CURRENT_SOURCE_DIR}/SMP/Sequential")
endif()
set(vtk_smp_common_dir SMP/Common)
list(APPEND vtk_smp_sources
"${vtk_smp_common_dir}/vtkSMPToolsAPI.cxx")
list(APPEND vtk_smp_nowrap_headers
"${vtk_smp_common_dir}/vtkSMPThreadLocalAPI.h"
"${vtk_smp_common_dir}/vtkSMPThreadLocalImplAbstract.h"
"${vtk_smp_common_dir}/vtkSMPToolsAPI.h"
"${vtk_smp_common_dir}/vtkSMPToolsImpl.h"
"${vtk_smp_common_dir}/vtkSMPToolsInternal.h")
list(APPEND vtk_smp_sources
vtkSMPTools.cxx)
list(APPEND vtk_smp_headers
vtkSMPTools.h
vtkSMPThreadLocal.h
vtkSMPThreadLocalObject.h)
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