ceres use_cuda
时间: 2024-05-14 09:17:59 浏览: 9
Ceres Solver, an open-source optimization library, can be configured to use CUDA for some of its operations. To do so, you need to have a compatible GPU and install CUDA Toolkit on your system.
Once you have CUDA installed, you can configure Ceres with CUDA support by adding the following flags to your CMake command:
```
-DCMAKE_CXX_FLAGS=-pthread -fPIC -Wall -Wno-sign-compare -Wno-unused-local-typedefs -Wno-unused-function -Wno-deprecated-declarations -Wno-format-security -std=c++11 -DCERES_USE_CUDA
```
This will enable Ceres to use CUDA for some of its linear algebra operations, which can significantly speed up optimization on large problems.
相关问题
ceres工程用到cuda加速的cmake怎么写
以下是使用Cuda加速的Ceres工程的CMake示例代码:
```cmake
# 指定cmake最低版本要求
cmake_minimum_required(VERSION 3.8)
# 设置C++编译器版本,这里指定为C++14
set(CMAKE_CXX_STANDARD 14)
# 找到CUDA,这个命令只有在设置CUDA后才能使用
find_package(CUDA REQUIRED)
# 找到Ceres库
find_package(Ceres REQUIRED)
# 指定头文件路径
include_directories(${CERES_INCLUDE_DIRS})
# 指定CUDA头文件路径
include_directories(${CUDA_INCLUDE_DIRS})
# 指定CUDA源文件
file(GLOB SRCS *.cu)
# 编译CUDA
cuda_add_library(ceres_cuda ${SRCS})
# Ceres链接CUDA
target_link_libraries(ceres_cuda ${CERES_LIBRARIES})
# 指定创建可执行程序
add_executable(ceres_demo main.cpp)
# 外部链接过程中链接CUDA和Ceres
target_link_libraries(ceres_demo ceres_cuda ${CERES_LIBRARIES})
# 开启CUDA并设置硬件架构类型
target_compile_options(ceres_cuda PUBLIC --gpu-architecture=sm_50 --disable-warnings)
```
ceres工程的cmake怎么写
关于Ceres工程的CMake编写,我可以给您提供一些基本步骤和示例代码:
1. 定义CMake最低版本,通常写成这样子:cmake_minimum_required(VERSION 3.5)
2. 设置工程名称和支持语言:project(ceres_tutorial LANGUAGES CXX)
3. 导入Ceres库及其他需要的库:find_package(Ceres REQUIRED)、find_package(Eigen3 REQUIRED)
4. 将头文件路径和库路径添加到编译器搜索路径中:include_directories(${CERES_INCLUDE_DIRS})、link_directories(${CERES_LIBRARY_DIRS})
5. 添加可执行文件:add_executable(ceres_tutorial main.cpp)
6. 链接需要的库文件:target_link_libraries(ceres_tutorial ${CERES_LIBRARIES} ${CERES_DEPENDENCIES})
以下是一份完整的CMake代码示例:
cmake_minimum_required(VERSION 3.5)
project(ceres_tutorial LANGUAGES CXX)
find_package(Ceres REQUIRED)
find_package(Eigen3 REQUIRED)
include_directories(${CERES_INCLUDE_DIRS})
link_directories(${CERES_LIBRARY_DIRS})
add_executable(ceres_tutorial main.cpp)
target_link_libraries(ceres_tutorial ${CERES_LIBRARIES} ${CERES_DEPENDENCIES})
如果您有其他问题需要解答,请随时提出。
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