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
OpNode
struct OpNode
An operation in the Loop Dependency Graph (LDG).
Enriches OpDesc with resource assignment and latency, the information needed for modulo scheduling (GAG96). Each OpNode represents one vertex in the LDG.
Latencies are approximate and used for scheduling heuristics (ASAP/ALAP priority), not for cycle-accurate simulation. Typical values:
GLOBAL_MEM (buffer_load → LDS): ~200 cycles
LDS (ds_read → register): ~20 cycles
MMA_UNIT (MFMA execution): ~16 cycles
SCALAR (barriers, fences): ~0 cycles (sync, not compute)Fields
- op (
OpDesc): The underlyingOpDescwith kind, stage, subtile, etc. - resource (
ResourceKind): Hardware unit that executes this op (fromOpDesc.resource). - latency (
Int): Estimated cycles until the result is available.
Implemented traits
AnyType,
Copyable,
ImplicitlyCopyable,
ImplicitlyDeletable,
Movable
Methods
__init__
def __init__(out self, *, op: OpDesc, latency: Int = Int(-1))
Create an OpNode from an OpDesc.
If latency is -1 (default), it is auto-derived from op.latency. Pass an explicit value to override.
Was this page helpful?
Thank you! We'll create more content like this.
Thank you for helping us improve!