For the complete documentation index, see llms.txt. Markdown versions of all pages are available by appending .md to any URL (e.g. /max/get-started.md).
Mojo struct
OpCost
struct OpCost
Hardware cost annotation for a single operation kind.
Maps an operation tag to the hardware resource it occupies, its latency in cycles, its data-flow role, and (optionally) the VGPR liveness it induces. Provided by a TargetCostModel.
Fields
- resource (
ResourceKind): - latency (
Int): - role (
OpRole): - vgpr_def (
Int): VGPRs this op brings into scope (new live register values). - vgpr_kill (
Int): VGPRs this op releases (last use of some register buffer).
Implemented traits
AnyType,
Copyable,
ImplicitlyCopyable,
ImplicitlyDestructible,
Movable
Methods
__init__
__init__(out self, resource: ResourceKind, latency: Int, role: OpRole, *, vgpr_def: Int = 0, vgpr_kill: Int = 0)
Constructs an OpCost.
Args:
- resource (
ResourceKind): Hardware execution unit. - latency (
Int): Latency in cycles. - role (
OpRole): Pipeline data-flow role. - vgpr_def (
Int): VGPRs the op brings into scope. - vgpr_kill (
Int): VGPRs the op releases.
none
static none() -> Self
Sentinel for unregistered op tags.
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