vortex_torch.indexer.save_load

Classes

Load()	Read back a per-page value persisted by Save (the read side of the cross-decode-step persistent-state pattern).
Save()	Persist a per-page indexer value across decode steps (paired with Load) by copying it into a preallocated cache field.

class Save

Bases: vOp

Persist a per-page indexer value across decode steps (paired with Load) by copying it into a preallocated cache field.

Math:

\[O \leftarrow X\]

(a format/layout copy RAGGED → PAGED; no arithmetic).

__init__:

Save() — no arguments.

__call__:

op(x, o, ctx=ctx) — x [S, D_0, D_1] (RAGGED) is written in place into the preallocated o (PAGED, matching D_0 / D_1). Returns nothing.

Note:

write side of the persistent-state pattern; a flow that uses Save requires the engine to set disable_radix_cache=True.

class Load

Bases: vOp

Read back a per-page value persisted by Save (the read side of the cross-decode-step persistent-state pattern).

Math:

\[Y \leftarrow X\]

(a format/layout copy PAGED → RAGGED; no arithmetic).

__init__:

Load() — no arguments.

__call__:

y = op(x, ctx=ctx) — x [S, D_0, D_1] (PAGED); returns a freshly-allocated RAGGED view of the same inner shape.

Note:

read side of the persistent-state pattern (see Save).