cuOpt writes a different shape from HiGHS: two comment lines carrying the
status and the objective, then one name value pair per column.
Usage
read_cuopt_solution(file, require_optimal = TRUE)
Arguments
- file
Path to the solution file; .gz is read transparently.
- require_optimal
Logical; error unless the status is optimal. A capped
or interrupted solve returns a feasible but sub-optimal primal, and
presenting that as the optimum is the failure this guards.
Value
The same shape as read_highs_solution(): status, objective,
columns (name, primal, dual = NA), and rows = NULL to mark
the absence of dual information.
Details
# Status: Optimal
# Objective value: 36880.2354212843493
c0 0
c1 1.5
There is no row section: cuOpt's --solution-file writes primal values
only, so nothing on this path yields duals or marginals.
