Compare interpolation settings AND solvers for a model

Interpolates mod under each setting combination (via compare_interp_settings()) and then solves every build with each supplied solver option, tabulating the objective, solve time and status. Because the solution must not depend on storage settings, the objective should be identical across fold / sparse / prune for a given solver – the print method flags any per-solver disagreement.

Usage

compare_solve_settings(
  mod,
  settings = NULL,
  solvers,
  ...,
  name = "cmp",
  verbose = FALSE,
  tmp.dir = NULL
)

Arguments

mod

a model.

settings

a named list of interp_mod() setting combinations (see compare_interp_settings()); NULL uses the default grid.

solvers

a list of solver-option objects, e.g. list(solver_options$glpk, solver_options$julia_highs). Names are taken from the list names when present, otherwise from each option's $name.

...

forwarded to every interp_mod() build (e.g. horizon = newHorizon(period = 2024)).

name

base scenario name.

verbose

forwarded to interp_mod().

tmp.dir

solver working directory (passed to solve_scen()); NULL lets the solver pick one.

Value

an object of class solve_settings_cmp: summary (one row per setting x solver: ok, seconds, objective, error), interp (the interp-size table), plus top / details from the interpolation comparison.

See also

compare_interp_settings(), solve_scen(), model_size()

Examples

if (FALSE) { # \dontrun{
compare_solve_settings(mod,
  solvers = list(solver_options$glpk),
  horizon = newHorizon(period = 2024))
} # }