Vulkan FFT library - VkFFT: support of sizes up to 2^30 in all dimensions

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Hello! I would like to share another update of my Fast Fourier Transform library for Vulkan - VkFFT (https://github.com/DTolm/VkFFT). Previous post: https://www.reddit.com/r/MachineLearning/comments/j0wffm/p_vkfft_update_post_support_of_big_ffts_up_to_224/. This update is a big one, as it brings maximum FFT sequence length to 2^30 in all dimensions in C2C, which is now almost limited by how much memory can be addressed by a 32-bit uint. This should bring VkFFT much closer to the level of feature-completeness (in powers of 2) as cuFFT.

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