Module cudnn 

GraphOpRecord impls for crate::kernel::CudnnActor requests.

Each op holds the same payload as the matching CudnnMsg variant minus the reply channel, plus the cuDNN handle that the actor ordinarily owns. The graph script caller passes the handle in once, then submits a series of ConvForwardOps without reaching back into the actor.

For Phase 3 we keep these structs descriptor-shape-only: their record method validates the inputs and returns Unrecoverable on hosts where cuDNN isn’t loadable. A future sub-phase will wire the actual cuDNN-record path (cuDNN supports stream-capture as of v8.5).

Structs

ActivationOp

Capture-mode op for CudnnMsg::Activation.

ConvForwardOp

Capture-mode op for CudnnMsg::ConvForward.

SoftmaxOp

Capture-mode op for CudnnMsg::Softmax.