Struct IpoptApplication 

pub struct IpoptApplication { /* private fields */ }

Implementations

impl IpoptApplication

pub fn new() -> Self

New application with empty options and a default journalist. Equivalent to IpoptApplication::IpoptApplication(true,true).

pub fn options(&self) -> &OptionsList

pub fn options_mut(&mut self) -> &mut OptionsList

pub fn registered_options(&self) -> &Rc<RegisteredOptions>

pub fn journalist(&self) -> &Rc<Journalist>

pub fn set_linear_backend_factory(&mut self, factory: LinearBackendFactory)

Plug a custom symmetric-linear-solver factory. Useful for tests that want to swap MA57 for a stub. Production callers should leave this unset — the default (default_backend_factory) returns the workspace’s MA57 binding.

pub fn set_restoration_factory(&mut self, factory: RestorationFactory)

Plug a restoration-phase factory. Called once per optimize_tnlp invocation to mint a fresh Box<dyn RestorationPhase> that the outer algorithm uses as its line-search restoration fallback. Lives behind a setter (rather than at construction) because the concrete restoration strategies live in pounce-restoration, which depends on this crate; consumers in pounce-cli / integration tests wire the factory at the application boundary.

pub fn set_diagnostics(&mut self, diag: Rc<DiagnosticsState>)

Install the shared diagnostics state. Once set, every subsequent optimize_tnlp call forwards the state into the algorithm via IpoptAlgorithm::with_diagnostics so the KKT solver can emit --dump kkt:... artifacts.

pub fn diagnostics(&self) -> Option<Rc<DiagnosticsState>>

Read-side accessor for the installed diagnostics state, if any. Lets the CLI write the top-level manifest/timing files after the solve completes.

pub fn set_restoration_factory_provider( &mut self, provider: RestorationFactoryProvider, )

Plug a restoration-phase factory provider for drivers that need to run the inner IPM more than once per optimize_tnlp call (notably the Phase-3 ℓ₁-exact penalty-barrier outer loop, pounce#10). On each inner solve, the application consults the provider to mint a fresh RestorationFactory, replacing any stale one, so the default one-shot restoration factory does not panic on its second invocation. If both set_restoration_factory and this are configured, the provider wins.

pub fn set_on_converged(&mut self, cb: ConvergedCallback)

Register a callback to run once the IPM has converged (status ApplicationReturnStatus::SolveSucceeded or ApplicationReturnStatus::SolvedToAcceptableLevel) but before finalize_solution flows back to the TNLP. See ConvergedCallback for the use case (post-optimal sensitivity).

pub fn enable_iter_history(&mut self)

Enable per-iteration trajectory capture. After the solve returns, Self::statistics() exposes pounce_nlp::solve_statistics::SolveStatistics::iterations populated with one pounce_nlp::solve_statistics::IterRecord per accepted iterate. Off by default — the pounce_sens and pounce binaries opt in when --json-output is passed.

pub fn initialize_with_options_file( &mut self, path: &Path, ) -> Result<(), SolverException>

Read an ipopt.opt-format options file. Equivalent to IpoptApplication::Initialize(const std::string& options_file).

pub fn initialize_with_options_str( &mut self, s: &str, ) -> Result<(), SolverException>

Read options from a string in ipopt.opt format. Useful for tests and embedded callers.

pub fn initialize(&mut self) -> Result<(), SolverException>

No-op initialize (just succeeds). Mirrors IpoptApplication::Initialize(bool allow_clobber) with no options file.

pub fn open_output_file(&mut self, fname: &str, print_level: i32) -> bool

Mirror IpoptApplication::OpenOutputFile. Sets the output_file / file_print_level options and attaches a matching FileJournal named OutputFile:<fname> to the journalist. Returns false if the file could not be opened or the option store rejected the request (e.g. clamped print level).

pub fn problem_dimensions(&self, tnlp: &mut dyn TNLP) -> Option<NlpInfo>

Wrap a TNLP and report problem dimensions. Used in tests until the full IPM path covers every entry shape.

pub fn statistics(&self) -> SolveStatistics

pub fn timing_stats(&self) -> Rc<TimingStatistics>

Shared timing accumulator from the most recent optimize_tnlp call. Each subsystem (algorithm, NLP, KKT solver) bumped its own fields during the solve; consumers read totals out of the returned Rc. The instance is replaced at the top of every subsequent solve, so cloning the Rc and holding it past a re-solve will give you the previous solve’s timings — by design.

pub fn linear_solver_summary(&self) -> Option<LinearSolverSummary>

Aggregate linear-solver post-mortem from the most recent optimize_tnlp call. Some when the workspace-default FERAL backend ran at least one factor; None when no factors were recorded (custom factory plugged via Self::set_linear_backend_factory, or solve aborted before the first KKT factor). Reset at the top of every solve.

pub fn optimize_tnlp( &mut self, tnlp: Rc<RefCell<dyn TNLP>>, ) -> ApplicationReturnStatus

Drive a solve.

• Constrained problems (m > 0) take the primal-dual IPM path: build a TNLPAdapter → OrigIpoptNlp, run the AlgorithmBuilder with the workspace MA57 backend, and call IpoptAlgorithm::optimize. The SolverReturn → ApplicationReturnStatus mapping mirrors the table in ref/Ipopt/AGENT_REFERENCE/MAIN_LOOP.md (“exception → SolverReturn map”).
• Unconstrained problems (m == 0) keep going through the in-pounce-nlp Newton driver so the trivial path is independent of the linear-solver backend.

pub fn set_sqp_warm_start(&mut self, warm: SqpIterates)

Has the user set algorithm = active-set-sqp? Reads the string option and matches case-insensitively against the design-note §7.1 spelling. Any value other than “active-set-sqp” (including absence) routes to the default IPM path. Stash a warm-start iterate for the SQP path. Consumed by the next optimize_tnlp call when the algorithm option resolves to active-set-sqp; the IPM path ignores it. Phase 5c (§6) — the parametric / MPC warm-start hand-off.

The iterate is auto-cleared after use, so a follow-up solve without an intervening set_sqp_warm_start call cold-starts.

pub fn clear_sqp_warm_start(&mut self)

Drop any pending warm-start iterate without solving.

pub fn last_sqp_working_set(&self) -> Option<&WorkingSet>

Return the final QP working set from the most recent SQP solve, or None if the last solve wasn’t SQP, didn’t produce a working set (cold-start declared the iterate optimal before solving any QP), or no SQP solve has run.

pub fn reoptimize_tnlp( &mut self, tnlp: Rc<RefCell<dyn TNLP>>, ) -> ApplicationReturnStatus

Stub. Re-solve with a warm start. Phase 7+.

pub fn algorithm_builder_from_options(&self) -> AlgorithmBuilder

Build an AlgorithmBuilder populated from the app’s OptionsList. Public so callers wiring the restoration factory can hand the inner IPM a builder that mirrors the outer’s mu_strategy/mu_oracle/line-search choices — matching upstream IpAlgBuilder::BuildRestoIpoptAlgorithm, which reads the same mu_strategy option with prefix `“resto.”

• prefix` and falls back to the outer setting.

Trait Implementations

impl Debug for IpoptApplication

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for IpoptApplication

fn default() -> Self

Returns the “default value” for a type.