Guuri11
commented
6 months ago Bug: Unknown argument -j error when building OpenCV with CUDA using make install_cuda
Description:
I encountered an issue while trying to install GoCV with CUDA support by running sudo make install_cuda. During the build process, the command fails with the following error message:
CMake Error: Unknown argument -j
CMake Error: Run 'cmake --help' for all supported options.
make[1]: *** No targets specified and no makefile found. Stop.
...
make: *** No rule to make target 'install'. Stop.After inspecting the Makefile, I observed that the cmake command within the build_cuda target incorrectly uses the -j argument, which is not a valid option for cmake.
Here is the relevant excerpt from the Makefile:
build_cuda:
cd $(TMP_DIR)opencv/opencv-$(OPENCV_VERSION)
mkdir build
cd build
rm -rf *
cmake -j $(shell nproc --all --ignore 1) -D CMAKE_BUILD_TYPE=RELEASE ...
$(MAKE) -j $(shell nproc --all --ignore 1)
$(MAKE) preinstall
cd -Proposed Fix:
The -j $(shell nproc --all --ignore 1) should be removed from the cmake command. The correct way to handle parallel builds is to use the -j option with make (which is already done correctly in the Makefile).
Here is the corrected version of the build_cuda target:
build_cuda:
cd $(TMP_DIR)opencv/opencv-$(OPENCV_VERSION)
mkdir build
cd build
rm -rf *
cmake -D CMAKE_BUILD_TYPE=RELEASE \
-D CMAKE_INSTALL_PREFIX=/usr/local \
-D BUILD_SHARED_LIBS=${BUILD_SHARED_LIBS} \
-D OPENCV_EXTRA_MODULES_PATH=$(TMP_DIR)opencv/opencv_contrib-$(OPENCV_VERSION)/modules \
-D BUILD_DOCS=OFF \
-D BUILD_EXAMPLES=OFF \
-D BUILD_TESTS=OFF \
-D BUILD_PERF_TESTS=ON \
-D BUILD_opencv_java=NO \
-D BUILD_opencv_python=NO \
-D BUILD_opencv_python2=NO \
-D BUILD_opencv_python3=NO \
-D WITH_JASPER=OFF \
-D WITH_TBB=ON \
-DOPENCV_GENERATE_PKGCONFIG=ON \
-DWITH_CUDA=ON \
-DENABLE_FAST_MATH=1 \
-DCUDA_FAST_MATH=1 \
-DWITH_CUBLAS=1 \
-DCUDA_TOOLKIT_ROOT_DIR=/usr/local/cuda/ \
-DBUILD_opencv_cudacodec=OFF \
-D WITH_CUDNN=ON \
-D OPENCV_DNN_CUDA=ON \
-D CUDA_ARCH_BIN=7.5 \
-D CUDA_GENERATION=Auto ..
$(MAKE) -j $(shell nproc --all --ignore 1)
$(MAKE) preinstall
cd -
Description
I installed CUDA & cDNN following the guides, and then tried the
make install_cudafrom the root of gocv. But it fails, I can complete themake installand it shows this message:but with make install_cuda happens this:
Steps to Reproduce
Your Environment
Processor: 13th Intel Core i5-13500Hx16
Graphics: NVIDIA RTX4050 / Mesa Intel® Graphics (RPL-P)
Operating System and version: Ubuntu 22.04.4 x64
OpenCV version used:
How did you install OpenCV? following this tutorial: https://gist.github.com/raulqf/f42c718a658cddc16f9df07ecc627be7
GoCV version used: gocv version: 0.36.1
Go version: go version go1.22.0 linux/amd64
Did you run the
env.shorenv.cmdscript before trying togo runorgo build? No