Error: Cuda_Runtime. H: No Such File or Directory
How Can I Force Gcc to Look in /Usr/Cuda/Local/Include for Cuda_Runtime. H? I'm Attempting to Compile a Cuda Application with a C Wrapper. I'm Running Ubuntu...
How can I force gcc to look in /usr/cuda/local/include for cuda_runtime.h?
I'm attempting to compile a CUDA application with a C wrapper. I'm running Ubuntu 10.04.
I've successfully compiled my CUDA application into a .so with the following command:
nvcc -arch=sm_11 -o libtest.so --shared -Xcompiler -fPIC main.cu
When I try and compile my c wrapper file with the following command:
gcc -std=c99 -o main -L. -ltest main.c
I receive the error:
error: cuda_runtime.h: No such file or directory
I've verified that cuda_runtime.h is in fact present in /usr/local/cuda/include
4 Answers
If you are using CMake
find_package(CUDA REQUIRED)
include_directories("${CUDA_INCLUDE_DIRS}")
Using an -I switch allowed gcc to find the cuda_runtime.h file:
gcc -std=c99 -I/usr/local/cuda/include -o main -L. -ltest main.c
We were using CMake but it still wasn't able to find the header files (maybe it is the CMake version that couldn't find the directory ./targets/x86_64-linux/include or because we have multiple CUDA versions). Setting CPATH and LD_LIBRARY_PATH fixed it for us:
export CPATH=/usr/local/cuda-10.1/targets/x86_64-linux/include:$CPATH
export LD_LIBRARY_PATH=/usr/local/cuda-10.1/targets/x86_64-linux/lib:$LD_LIBRARY_PATH
export PATH=/usr/local/cuda-10.1/bin:$PATH
Add -isystem /usr/local/cuda-8.0/include to CXX_INCLUDES in flags.make file.
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