How to solve linking problems with manually installed cuda? - c++

Question

I'm trying desperately to get the cuda toolkit running on my debian system, having cuda 11.7 and the nvidia drivers 515 installed via the .run file.
Unfortunately, I always get false when checking for cudart and curand libraries with my autoconf script. Skipping the checks, results in a missing cuda.h error while compiling (c++).
Runing nvcc --version:
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2022 NVIDIA Corporation
Built on Wed_Jun__8_16:49:14_PDT_2022
Cuda compilation tools, release 11.7, V11.7.99
Build cuda_11.7.r11.7/compiler.31442593_0
In my ~/.bashrc i added:
export PATH=${PATH}:/usr/local/cuda-11.7/bin
export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/local/cuda-11.7/lib64
I also tried to add /usr/local/cuda-11.7/lib64 to ld.so.conf. Runing sudo ldconfig -v | grep cuda gives:
ldconfig: Can't stat /usr/local/cuda-11/targets/x86_64-linux/lib: No such file or directory
ldconfig: Path `/usr/local/cuda-11.7/targets/x86_64-linux/lib' given more than once
ldconfig: Can't stat /usr/local/cuda-11.4/targets/x86_64-linux/lib: No such file or directory
ldconfig: Can't stat /usr/local/lib/x86_64-linux-gnu: No such file or directory
ldconfig: Path `/usr/lib/x86_64-linux-gnu' given more than once
ldconfig: Path `/usr/lib32' given more than once
ldconfig: Path `/usr/local/cuda-11.7/lib64' given more than once
ldconfig: Path `/lib/x86_64-linux-gnu' given more than once
ldconfig: Path `/usr/lib/x86_64-linux-gnu' given more than once
ldconfig: Path `/usr/lib' given more than once
ldconfig: /lib/x86_64-linux-gnu/ld-2.31.so is the dynamic linker, ignoring
/usr/local/cuda/targets/x86_64-linux/lib:
libcudart.so.11.0 -> libcudart.so.11.7.99
libicudata.so.67 -> libicudata.so.67.1
libcuda.so.1 -> libcuda.so.515.65.01
ldconfig: /lib32/ld-2.31.so is the dynamic linker, ignoring
libcuda.so.1 -> libcuda.so.515.65.01
Running sudo ldconfig -p | grep cuda gives the following output:
libnvrtc.so.11.2 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnvrtc.so.11.2
libnvrtc.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnvrtc.so
libnvrtc-builtins.so.11.7 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnvrtc-builtins.so.11.7
libnvrtc-builtins.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnvrtc-builtins.so
libnvjpeg.so.11 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnvjpeg.so.11
libnvjpeg.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnvjpeg.so
libnvblas.so.11 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnvblas.so.11
libnvblas.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnvblas.so
libnvToolsExt.so.1 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnvToolsExt.so.1
libnvToolsExt.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnvToolsExt.so
libnpps.so.11 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnpps.so.11
libnpps.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnpps.so
libnppitc.so.11 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnppitc.so.11
libnppitc.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnppitc.so
libnppisu.so.11 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnppisu.so.11
libnppisu.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnppisu.so
libnppist.so.11 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnppist.so.11
libnppist.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnppist.so
libnppim.so.11 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnppim.so.11
libnppim.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnppim.so
libnppig.so.11 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnppig.so.11
libnppig.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnppig.so
libnppif.so.11 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnppif.so.11
libnppif.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnppif.so
libnppidei.so.11 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnppidei.so.11
libnppidei.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnppidei.so
libnppicc.so.11 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnppicc.so.11
libnppicc.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnppicc.so
libnppial.so.11 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnppial.so.11
libnppial.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnppial.so
libnppc.so.11 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnppc.so.11
libnppc.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libnppc.so
libicudata.so.67 (libc6,x86-64) => /lib/x86_64-linux-gnu/libicudata.so.67
libicudata.so (libc6,x86-64) => /lib/x86_64-linux-gnu/libicudata.so
libcusparse.so.11 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libcusparse.so.11
libcusparse.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libcusparse.so
libcusolverMg.so.11 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libcusolverMg.so.11
libcusolverMg.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libcusolverMg.so
libcusolver.so.11 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libcusolver.so.11
libcusolver.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libcusolver.so
libcurand.so.10 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libcurand.so.10
libcurand.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libcurand.so
libcuinj64.so.11.7 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libcuinj64.so.11.7
libcuinj64.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libcuinj64.so
libcufile_rdma.so.1 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libcufile_rdma.so.1
libcufile_rdma.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libcufile_rdma.so
libcufile.so.0 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libcufile.so.0
libcufile.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libcufile.so
libcufftw.so.10 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libcufftw.so.10
libcufftw.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libcufftw.so
libcufft.so.10 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libcufft.so.10
libcufft.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libcufft.so
libcudart.so.11.0 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libcudart.so.11.0
libcudart.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libcudart.so
libcuda.so.1 (libc6,x86-64) => /lib/x86_64-linux-gnu/libcuda.so.1
libcuda.so.1 (libc6) => /lib32/libcuda.so.1
libcuda.so (libc6,x86-64) => /lib/x86_64-linux-gnu/libcuda.so
libcuda.so (libc6) => /lib32/libcuda.so
libcublasLt.so.11 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libcublasLt.so.11
libcublasLt.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libcublasLt.so
libcublas.so.11 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libcublas.so.11
libcublas.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libcublas.so
libaccinj64.so.11.7 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libaccinj64.so.11.7
libaccinj64.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libaccinj64.so
libOpenCL.so.1 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libOpenCL.so.1
libOpenCL.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libOpenCL.so
Compilation works fine, when cuda was installed with apt, but I need a newer version than available in apt.
I would be glad, if someone could give me a hint about this. I am relatively new to the Linux world and therefore have problems to fix things myself.

Answer 1

As Fareanor explained, part of the solution was to add cuda to LIBRARY_PATH.
I also had to add cuda to CPATH.
Now it works and .bashrc contains:
export PATH=${PATH}:/usr/local/cuda-11.7/bin
export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/local/cuda-11.7/lib64
export LIBRARY_PATH=${LIBRARY_PATH}:/usr/local/cuda-11.7/lib64
export CPATH=$CPATH:/usr/local/cuda/include