Why it matters

CUDA graphs speed inference. Understanding shapes serving optimization.

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The architecture

Capture: record kernel launches.

Instantiate: prepare graph.

Launch: replay whole graph.

CUDA graphs flowCapturerecord launchesInstantiatecompile graphLaunchsingle callFixed shapes required; use padded/bucketed batches for varying inputs
CUDA graphs.
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How it works end to end

Stream capture: record launches during warmup.

Instantiate: graph object.

Replay: cudaGraphLaunch.

Fixed shapes required.