Rutwik Choughule comments

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                                            Rutwik Choughule

When I run an algorithm get an error: "OSError: libcudart.so.10.0: cannot open shared object file: No such file or directory"

Please check the [post installation steps](https://docs.nvidia.com/cuda/cuda-installation-guide-linux/#post-installation-actions). Looks like env variable `LD_LIBRARY_PATH` is not set, or lib files are missing from `/usr/local/cuda/lib64` (or `/usr/local/cuda/lib` for 32-bit)

I got some error with 'cudaMemcpy'

If the value of `s_dem_last_length` is not equal to 1000, please use the same size for `cudaMemcpy()` on line 124. It might be copying more memory than allocated. `cudaMemcpy(s_dem_test, s_dem_GPU,...

I got some error with 'cudaMemcpy'

You can check the return value of those CUDA APIs. `cudaMemcpy()` from `HostToDevice` or `DeviceToHost` might be failing due to some reason. Something like this: [checkCudaErrors()](https://github.com/NVIDIA/cuda-samples/blob/master/Common/helper_cuda.h#L595)

I got some error with 'cudaMemcpy'

Maybe the 4th kernel launch is accessing some invalid index of array?

I got some error with 'cudaMemcpy'

I haven't used CLion yet. But you can use following bash command to set any environment variable `export CUDACXX=` e.g. `export CUDACXX=/usr/local/cuda/bin/nvcc`