Cuda: deprecated tex2D function

It seems that Cuda 11 deprecates the tex2D function.

UserWarning: The CUDA compiler succeeded, but said the following:
kernel.cu(111): warning: function "tex2D(texture<T, 2, cudaReadModeElementType>, float, float) [with T=float]"
/usr/local/cuda-11.4/bin/../targets/x86_64-linux/include/texture_fetch_functions.h(198): here was declared deprecated

kernel.cu(112): warning: function "tex2D(texture<T, 2, cudaReadModeElementType>, float, float) [with T=float]"
/usr/local/cuda-11.4/bin/../targets/x86_64-linux/include/texture_fetch_functions.h(198): here was declared deprecated

If I understood correctly:

• Texture references were "the way" of using textures back then
• From Kepler, "bindless textures" (texture objects) can be used
• From Cuda 11.3, texture references are deprecated

See also: https://developer.nvidia.com/blog/cuda-pro-tip-kepler-texture-objects-improve-performance-and-flexibility/

The problem is that bindless textures are not supported by pycuda yet.