flopscope.accounting.polysub

flopscope.accounting.polysub_cost(n1, n2)[flopscope source]

Cost for polysub: max(n1, n2) FLOPs.

Legacy length-based formula, kept for the public flops.polysub_cost analytical-cost API (1-D coefficient arrays, where axis-0 length is the element count). The polysub wrapper itself bills via _polyaddsub_cost, which also covers higher-rank/broadcasting inputs -- see that function's docstring for why axis-0 length alone is not enough there.

Parameters

n1:int: Argument forwarded to the analytical polysub cost formula.
n2:int: Argument forwarded to the analytical polysub cost formula.

Returns

:int: Weighted public cost estimate, floored to match runtime accounting.

Notes

This helper multiplies the analytical FLOP count by the active weight from flopscope._weights and then applies int(...) so public estimates match budget deductions.