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DiffsolTimeBackend

eqiora::backends::diffsol

Struct DiffsolTimeBackend 

pub struct DiffsolTimeBackend;
Description

Stateless Diffsol adapter for admitted first-order time problems.

Implementations§

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impl DiffsolTimeBackend

Signature links:§DiffsolTimeBackend

pub const fn new() -> DiffsolTimeBackend

Signature links:newDiffsolTimeBackend

Construct the stateless adapter.

pub fn admit( &self, equation_class: TimeEquationClass, method: TimeMethod, ) -> Result<(), Diagnostic>

Signature links:admitTimeEquationClassTimeMethodResult()Diagnostic

Check one equation-class/method pair without constructing a problem.

Tsitouras 5(4) admits only explicit ODEs. BDF admits ODEs and full- or rank-deficient mass matrices. A general implicit DAE is never rewritten to fit Diffsol’s first-order mass-matrix form.

§Errors

Returns EQ0807 when the pair is outside the adapter contract.

pub fn solve( &self, problem: &TimeProblem<'_>, plan: &TimePlan, ) -> Result<TimeSolution, Diagnostic>

Signature links:solveTimeProblemTimePlanResultTimeSolutionDiagnostic

Solve one validated first-order problem at the requested output times.

Internal adaptive steps are owned by Diffsol and do not replace Eqiora model time or event ordering. Returned buffers are copied into an Eqiora-owned TimeSolution.

§Errors

Returns stable Eqiora diagnostics for admission, callback, setup, or integration failures.

pub fn solve_forward_sensitivities( &self, problem: &ForwardSensitivityProblem<'_>, plan: &TimePlan, sensitivity_plan: &ForwardSensitivityPlan, ) -> Result<ForwardSensitivitySolution, Diagnostic>

Signature links:solve_forward_sensitivitiesForwardSensitivityProblemTimePlanForwardSensitivityPlanResultForwardSensitivitySolutionDiagnostic

Integrate continuous forward sensitivities from the same primal/JVP seam.

Parameter effects enter as f_p dp and y0_p dp actions supplied by eqiora_time::ParametricTimeSystem. Mass-matrix problems are admitted only after that contract proves M_p dp = 0; no dual-number simulator or Diffsol type enters the public contract.

§Errors

Returns a stable diagnostic for invalid controls, unsupported equation/method pairs, callback failures, or integration failures.

pub fn propose_first_root( &self, problem: &TimeProblem<'_>, roots: &RegisteredRootProblem<'_>, plan: &TimePlan, ) -> Result<Option<RootProposal>, Diagnostic>

Signature links:propose_first_rootTimeProblemRegisteredRootProblemTimePlanResultOptionRootProposalDiagnostic

Localize the first zero crossing before the plan’s final output time.

The result is only a numerical proposal. Root direction, simultaneous grouping, priority, and reset commit are owned by Eqiora’s hybrid scheduler. A reset therefore restarts the same TimeProblem explicitly rather than invoking Diffsol’s automatic-reset semantics.

The first admitted slice is an explicit ODE; Ok(None) means the search horizon was reached without a root.

§Errors

Returns stable admission, callback, setup, and integration diagnostics.

Trait Implementations§

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impl Clone for DiffsolTimeBackend

Signature links:§CloneDiffsolTimeBackend
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fn clone(&self) -> DiffsolTimeBackend

Signature links:§cloneDiffsolTimeBackend
Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Signature links:unstableSource§clone_from
Performs copy-assignment from source. Read more
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impl Debug for DiffsolTimeBackend

Signature links:§DebugDiffsolTimeBackend
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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Signature links:§fmtFormatterResult()Error
Formats the value using the given formatter. Read more
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impl Default for DiffsolTimeBackend

Signature links:§DefaultDiffsolTimeBackend
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fn default() -> DiffsolTimeBackend

Signature links:§defaultDiffsolTimeBackend
Returns the “default value” for a type. Read more
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impl Copy for DiffsolTimeBackend

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