Module kernel 

The Kernel trait and kernel-match / cost types (§4.2).

Structs

Cost

A cost estimate for running a kernel, consumed by the placement cost model (docs/ORT2.md §6). All time fields are in microseconds; a fuller model (roofline, calibration) lands in onnx-runtime-cost-model (Phase 2).

KernelVariantSelection

The concrete implementation selected by a kernel’s internal dispatcher.

ViewOutput

A zero-copy view output: a kernel’s declaration that one of its outputs is a strided view aliasing one of its inputs’ buffers, rather than freshly computed bytes (docs/ORT2.md §5.4, lazy PyTorch-style views).

Enums

CaptureSupport

Whether a compiled kernel can participate in device-graph capture.

KernelInput

An executor-delivered kernel input. Existing EPs receive Tensor variants; an EP advertising the nxrt capability may receive a lazy Weight at the pkg.nxrt::BlockQuantizedMoE boundary.

KernelMatch

Result of crate::ExecutionProvider::supports_op.

Constants

ARG_KERNEL_VARIANT

Trace-argument key carrying the selected kernel implementation.

ARG_KERNEL_VARIANT_REASON

Trace-argument key carrying why the kernel variant was selected.

Traits

Kernel

A kernel ready to execute a specific op with specific shapes (§4.2).

Functions

kernel_variant_tracing_enabled

Whether kernel-variant trace annotations would currently be recorded.

record_kernel_variant_selection

Record a selected kernel variant on the active runtime trace span.

record_kernel_variant_stage_selection

Record a selected kernel variant for a named sub-decision of the current op.