Module record 

Capture-mode contract.

Library actors that participate in crate::pipeline or crate::graph implement RecordMode so they can be driven without registering host-callback completion. The capture caller (a PipelineStage adapter or GraphActor) feeds an operation, the library actor enqueues it onto the supplied stream, and the caller manages cross-stream synchronization itself via CudaEvents (pipeline) or graph instantiation (graph).

Capture-safe vs. unsafe: anything calling host functions (HostFnCompletion’s cuLaunchHostFunc, tokio::spawn, synchronous memcpy) is not capture-safe. RecordMode impls must enqueue purely on the stream and return synchronously.

Structs

BlasRecorder

Capture-mode wrapper around a CudaBlas handle. Used by crate::graph::GraphActor when it needs to record an SGEMM inside a stream-capture region.

BlasSgemmOp

Record-mode op for cuBLAS SGEMM. Mirrors BlasMsg::Sgemm’s payload minus the reply channel.

FftR2COp

FftRecorder

MemcpyOp

Memcpy op (host-side cudaMemcpyAsync device-to-device on the captured stream). Capture-safe.

MemcpyRecorder

Capture-mode wrapper for in-stream device-to-device memcpy.

RngFillUniformOp

Uniform RNG fill op. Capture-safe in cuRAND when no host counter is consulted; the actor records an in-place uniform fill against the supplied buffer.

RngRecorder

Traits

RecordMode

Library-actor opt-in to capture-mode enqueue.