mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-18 18:15:44 +00:00
1bfcce19dd
Consumers of VTK-m when enabling of dropping of unused functions will see VTK-m functions dropped. Previously this didn't happen as VTK-m didn't build object files with the correct flags for this. By allowing the linker to remove unused symbols we see a significant saving the file size of VTK-m tests, examples, and benchmarks. An OpenMP build of the tests and benchmarks goes from 168MB to 141MB which is roughly a 16% filesize reduction. Initially I had presumed that these changes would increase link times. But in measurements the total wall time for compilation of VTK-m has stayed about the same ( seeing a decrease of 1.5% ). Presumably the increased computation is offset by the reduction in file writing.
51 lines
1.6 KiB
CMake
51 lines
1.6 KiB
CMake
##============================================================================
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## Copyright (c) Kitware, Inc.
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## All rights reserved.
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## See LICENSE.txt for details.
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##
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## This software is distributed WITHOUT ANY WARRANTY; without even
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## the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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## PURPOSE. See the above copyright notice for more information.
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##============================================================================
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function(add_benchmark)
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set(options)
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set(oneValueArgs NAME FILE)
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set(multiValueArgs LIBS)
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cmake_parse_arguments(VTKm_AB
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"${options}" "${oneValueArgs}" "${multiValueArgs}"
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${ARGN}
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)
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set(exe_name ${VTKm_AB_NAME})
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add_executable(${exe_name} ${VTKm_AB_FILE})
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target_link_libraries(${exe_name} PRIVATE ${VTKm_AB_LIBS})
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vtkm_add_drop_unused_function_flags(${exe_name})
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vtkm_add_target_information(${exe_name})
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set_target_properties(${exe_name} PROPERTIES
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RUNTIME_OUTPUT_DIRECTORY ${VTKm_EXECUTABLE_OUTPUT_PATH}
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CXX_VISIBILITY_PRESET "hidden"
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CUDA_VISIBILITY_PRESET "hidden"
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)
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vtkm_add_target_information(${exe_name} DEVICE_SOURCES ${VTKm_AB_FILE})
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endfunction()
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set(benchmarks
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BenchmarkArrayTransfer
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BenchmarkAtomicArray
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BenchmarkCopySpeeds
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BenchmarkDeviceAdapter
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BenchmarkFieldAlgorithms
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BenchmarkFilters
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BenchmarkTopologyAlgorithms
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)
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foreach (benchmark ${benchmarks})
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add_benchmark(NAME ${benchmark} FILE ${benchmark}.cxx LIBS vtkm_filter)
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endforeach ()
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if(TARGET vtkm_rendering)
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add_benchmark(NAME BenchmarkRayTracing FILE BenchmarkRayTracing.cxx LIBS vtkm_rendering)
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endif()
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