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  1. Reference contract
  2. Contract
  3. Authoritative source

Global ODEs and DAEs

Dimensioned global differential and algebraic states assembled into Telion's monolithic coupled transient runtime.

Reference contract

FieldValueDescription
constraints[]
coupled_runtime{"adapter_module":"telion_backend.v2.runtimes.global_ode","adjoint_vjp_owner":"GlobalOdeDaeAdapter","certification":"AST-whitelisted JAX residuals and output expressions with monolithic sparse Newton solves, exact affine ZOH stepping, and checkpointed discrete adjoints.","checkpointing":true,"dynamic_state_schema":true,"execution_backend":"telion-v2-shared-execution","gradient_channels":["ode:<label>.parameters","ode:<label>.inputs"],"history_depth":2,"history_jacobian_owner":"GlobalOdeDaeAdapter","jacobian_owner":"GlobalOdeDaeAdapter","nonlinear_solver":"CoupledNewtonSession","output_vjp_owner":"GlobalOdeDaeAdapter","requires_spatial_mesh":false,"residual_owner":"GlobalOdeDaeAdapter","runtime":"telion-coupled-graph","supported_integrators":["BDF1","BDF2"]}
differentiable_runtimenull
dynamic_outputs[{"components":1,"differentiability":"exact-ad","display_name":"Authored global state","location":"global","name_pattern":"ode:{interface}:{state}","plottable":true,"rank":"scalar","studies":["transient"],"unit_source":"Differential State.Unit or Algebraic State.Unit"},{"components":1,"differentiability":"exact-ad","display_name":"Authored expression output","location":"global","name_pattern":"{output}","plottable":true,"rank":"scalar","studies":["transient"],"unit_source":"Expression Output.Unit"}]
equation_summaryDimensioned first-order differential states f(t,q,qdot,p,u)=0 and algebraic constraints g(t,q,p,u)=0; affine differential systems may use exact zero-order-hold matrix-exponential steps.
frequency_domain_runtimenull
metadata{"releaseSupport":{"certifiedStudies":["transient"],"manifest":"docs/september-2026-classroom-physics-matrix.json","manifestSha256":"8f1273eda113099a6658438b1513d127c2c4c99c511c5a6fc5b82637cf6bc949","profile":"september-2026-classroom","reason":"Selectable only for the certified study capabilities declared by this interface.","selectable":true}}
preferred_materialnull
schema_version2.0.0
studies[{"certified":true,"differentiability":"exact-ad","kind":"transient","reason":"september-2026-classroom verified contract: dimension-preserving BDF residuals for differential and algebraic states, exact affine zero-order-hold propagation, and state/input/parameter adjoints checked against analytical or centered finite-difference references"}]
transient_runtime{"capacity_properties":[],"certification":"GlobalOdeDaeAdapter","checkpointing":true,"design_properties":[],"design_property_conditions":{},"design_vjp_owner":"GlobalOdeDaeAdapter","expression_objectives":true,"gradient_channels":["ode:<label>.parameters","ode:<label>.inputs"],"gradient_vjp_owner":"GlobalOdeDaeAdapter","history_depth":2,"input_gradient":true,"input_vjp_owner":"GlobalOdeDaeAdapter","observation_vjp_owner":"GlobalOdeDaeAdapter","residual_linearization_owner":"GlobalOdeDaeAdapter","runtime":"coupled-global-ode-dae","state_fields":["q"],"state_reconstruction_owner":"GlobalOdeDaeAdapter","supported_integrators":["BDF1","BDF2"],"supported_observation_symbols":["ode.q","*"],"time_derivative_orders":{"q":1},"topology_gradient":false,"transpose_solve_owner":"CoupledNewtonSession"}
weak_contributions[]
categoryMathematics / ODE and DAE Interfaces
descriptionDimensioned global differential and algebraic states assembled into Telion's monolithic coupled transient runtime.
dimensions[3]
display_nameGlobal ODEs and DAEs
kindGlobal ODEs and DAEs
namespaceode
statuscertified
visibletrue

Dimensioned global differential and algebraic states assembled into Telion's monolithic coupled transient runtime.

Contract

PropertyValue
constraints[]
coupled_runtime{"adapter_module":"telion_backend.v2.runtimes.global_ode","adjoint_vjp_owner":"GlobalOdeDaeAdapter","certification":"AST-whitelisted JAX residuals and output expressions with monolithic sparse Newton solves, exact affine ZOH stepping, and checkpointed discrete adjoints.","checkpointing":true,"dynamic_state_schema":true,"execution_backend":"telion-v2-shared-execution","gradient_channels":["ode:<label>.parameters","ode:<label>.inputs"],"history_depth":2,"history_jacobian_owner":"GlobalOdeDaeAda...
differentiable_runtimenull
dynamic_outputs[{"components":1,"differentiability":"exact-ad","display_name":"Authored global state","location":"global","name_pattern":"ode:{interface}:{state}","plottable":true,"rank":"scalar","studies":["transient"],"unit_source":"Differential State.Unit or Algebraic State.Unit"},{"components":1,"differentiability":"exact-ad","display_name":"Authored expression output","location":"global","name_pattern":"{output}","plottable":true,"rank":"scalar","studies":["transient"],"unit_source":"Expression Output....
equation_summaryDimensioned first-order differential states f(t,q,qdot,p,u)=0 and algebraic constraints g(t,q,p,u)=0; affine differential systems may use exact zero-order-hold matrix-exponential steps.
frequency_domain_runtimenull
metadata{"releaseSupport":{"certifiedStudies":["transient"],"manifest":"docs/september-2026-classroom-physics-matrix.json","manifestSha256":"8f1273eda113099a6658438b1513d127c2c4c99c511c5a6fc5b82637cf6bc949","profile":"september-2026-classroom","reason":"Selectable only for the certified study capabilities declared by this interface.","selectable":true}}
preferred_materialnull
schema_version2.0.0
studies[{"certified":true,"differentiability":"exact-ad","kind":"transient","reason":"september-2026-classroom verified contract: dimension-preserving BDF residuals for differential and algebraic states, exact affine zero-order-hold propagation, and state/input/parameter adjoints checked against analytical or centered finite-difference references"}]
transient_runtime{"capacity_properties":[],"certification":"GlobalOdeDaeAdapter","checkpointing":true,"design_properties":[],"design_property_conditions":{},"design_vjp_owner":"GlobalOdeDaeAdapter","expression_objectives":true,"gradient_channels":["ode:<label>.parameters","ode:<label>.inputs"],"gradient_vjp_owner":"GlobalOdeDaeAdapter","history_depth":2,"input_gradient":true,"input_vjp_owner":"GlobalOdeDaeAdapter","observation_vjp_owner":"GlobalOdeDaeAdapter","residual_linearization_owner":"GlobalOdeDaeAdapte...
weak_contributions[]
categoryMathematics / ODE and DAE Interfaces
descriptionDimensioned global differential and algebraic states assembled into Telion's monolithic coupled transient runtime.
dimensions[3]
display_nameGlobal ODEs and DAEs
kindGlobal ODEs and DAEs
namespaceode
statuscertified
visibletrue

Authoritative source

Catalog
telion_backend.v2.catalog.PhysicsCatalog
Identity
physics-interface:ode
Path
src/telion_backend/v2/physics
Symbol
PhysicsDeclaration
Global ODEs and DAEs — Telion Python API 0.1.1-beta | Telion