mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-19 10:35:42 +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.
22 lines
921 B
CMake
22 lines
921 B
CMake
##============================================================================
|
|
## Copyright (c) Kitware, Inc.
|
|
## All rights reserved.
|
|
## See LICENSE.txt for details.
|
|
##
|
|
## This software is distributed WITHOUT ANY WARRANTY; without even
|
|
## the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
|
## PURPOSE. See the above copyright notice for more information.
|
|
##============================================================================
|
|
cmake_minimum_required(VERSION 3.8...3.15 FATAL_ERROR)
|
|
project(Histogram CXX)
|
|
|
|
#Find the VTK-m package
|
|
find_package(VTKm REQUIRED QUIET)
|
|
if (VTKm_ENABLE_MPI)
|
|
add_executable(Histogram Histogram.cxx HistogramMPI.h HistogramMPI.hxx)
|
|
target_link_libraries(Histogram PRIVATE vtkm_filter)
|
|
vtkm_add_target_information(Histogram
|
|
DROP_UNUSED_SYMBOLS MODIFY_CUDA_FLAGS
|
|
DEVICE_SOURCES Histogram.cxx)
|
|
endif()
|