flopscope.accounting.cond_cost
flopscope.accounting.cond_cost(m, n, p=None)[flopscope source]
Weighted FLOP cost of condition number.
p in {None, 2, -2}: values-only SVD + 1 divide. other p (square only): norm(A)*norm(inv(A)) -> inv (2n^3) + two elementwise norm passes (2n^2 each) + 1 multiply.
Parameters
- m:int
Number of rows in the input matrix.
- n:int
Number of columns in the input matrix.
- p:object, optional
Argument forwarded to the analytical linalg.cond cost formula. Defaults to
None.
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.