ubuntu20.04 安装colmap 报错：Cmake error while running “cmake .. -GNinja“ command during installation

日常Debug

按照官方文档安装Colmap时，在

这两步的时候报错，比如：

1.

Call Stack (most recent call first):
  /usr/local/share/cmake-3.27/Modules/CMakeDetermineCompilerId.cmake:8 (CMAKE_DETERMINE_COMPILER_ID_BUILD)
  /usr/local/share/cmake-3.27/Modules/CMakeDetermineCompilerId.cmake:53 (__determine_compiler_id_test)
  /usr/local/share/cmake-3.27/Modules/CMakeDetermineCUDACompiler.cmake:307 (CMAKE_DETERMINE_COMPILER_ID)
  cmake/FindCOLMAPDependencies.cmake:122 (enable_language)
  CMakeLists.txt:85 (include)

这里是因为安装过了早期的cuda，可以执行：

sudo apt remove nvidia-cuda-toolkit

2.

CMake Error at cmake/FindCOLMAPDependencies.cmake:129 (message):
  You must set CMAKE_CUDA_ARCHITECTURES to e.g.  'native', 'all-major', '70',
  etc.  More information at
  https://cmake.org/cmake/help/latest/prop_tgt/CUDA_ARCHITECTURES.html
Call Stack (most recent call first):
  CMakeLists.txt:85 (include)

这里是因为新版本cmake需要指定CMAKE_CUDA_ARCHITECTURES

参照官方说明和Colmap的issue#1805 可以执行：

cmake .. -GNinja -DCMAKE_CUDA_ARCHITECTURES=native

然后正常安装即可。