Libdevice not found at ./libdevice.10.bc

When you see the error message “libdevice not found at ./libdevice.10.bc”, it means that the required libdevice library file is missing from the specified path.

In CUDA programming, the libdevice library provides device-side functions that are automatically embedded in the executable binary. It contains optimized versions of commonly used math functions and other GPU-specific utilities.

To resolve this issue, you need to ensure that the libdevice library is available in the correct location.

Here is an example of how you can include the libdevice library in your CUDA program:

    #include <cassert>
#include <cuda_runtime.h>

__global__ void myKernel() {
    float x = sinf(0.5f); // Example usage of a libdevice function
    assert(x == 0.47942555f); // Example assertion using a libdevice result
}

int main() {
    myKernel<<<1, 1>>>(); // Launch kernel
    cudaDeviceSynchronize(); // Ensure all GPU operations are finished
    return 0;
}
  

Make sure you have the correct include statements for the required libraries, such as “cuda_runtime.h”.

If the error persists, you may need to check the installation of CUDA Toolkit and ensure that the libdevice library is present in the appropriate version-specific subdirectory of the CUDA installation directory. It should be located in a folder like “libdevice” or “nvvm/libdevice”.