GPU Coder Limitations

Spaces in file and path names cause build errors in Linux^®. GPU Coder™ uses GNU make tools that have known limitations when file names contain spaces. It is generally a good practice to avoid spaces in file, project, and path names.
GPU Coder disables integrity and array bounds/dimension checks that are part of MATLAB^® Coder™.
When using coder.inline('never') option during code generation, GPU Coder creates kernel for only the entry-point function containing the coder.gpu.kernelfun pragma and does not create kernels automatically for any sub-functions within the entry-point function. It is therefore recommended not to use the coder.inline('never') option.
Generating kernels for structures with variable-size arrays is not supported.
The CUDA^® compute capability that you select must match the compute capability of your hardware.
When using coder.ceval with GPU pointers, the Check for Issues option for CPU is not supported.
GPU Coder does not support code generation for Simulink^® blocks. You cannot use the NVIDIA Jetson and NVIDIA Drive boards from the Hardware board option in the Hardware Implementation pane and target NVIDIA^® GPUs.
GPU Coder does not support SIMD code generation. Disable SIMD code generation by setting the Leverage target hardware instruction set extensions parameter to None.

You can generate CUDA code for only a subset of MATLAB built-in functions and toolbox functions.
When targeting NVIDIA Tegra^® devices, GPU Coder does not support the quasi-euclidean method of bwdist function and image dimensions greater than 3.
When imfilter is used with a 1xN kernel and N is an even integer, shared memory is not used in generated code. When imfilter is used with a three-dimensional image, shared memory is not used in the conv2 implementation.
GPU Coder has empty code replacement report even if there is a replacement. This issue has been identified with atan function.

List of CUDA features that are not supported:

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