NVIDIA’s low-level GPU library for speeding up deep learning.
cuDNN is a pit crew for deep learning. When the model pulls in, the heavy tire-change jobs happen fast.
It speeds up training and prediction under the hood. You often meet it hidden inside PyTorch and vision models.
CUDA
cuDNN is built on CUDA and uses it to run deep learning work faster.
PyTorch
PyTorch often calls cuDNN under the hood for GPU speed.
CNN
cuDNN speeds up the convolution and activation steps in CNNs.
GPU
cuDNN needs a GPU, because it helps the GPU handle heavy work.