Issues

Tearing is implemented but never called; algebraic loops solved dense

#351

· YahorL opened

on Aug 23, 2026

--inspect structure reports index-3 models as singular although they simulate

#350

· YahorL opened

on Aug 23, 2026

Feature request: forward/adjoint sensitivity over a trajectory (diffsol already supports it)

#349

· YahorL opened

on Aug 23, 2026

set_input restarts the integrator on every call; batched application for co-simulation

#348

· YahorL opened

on Aug 23, 2026

Feature request: drive a SimulationSession from outside the process (stdio stepping mode)

#347

· YahorL opened

on Aug 23, 2026

fmi2 target rejects explicit algebraic assignments that 0.9.20 exported (regression)

#346

· YahorL opened

on Aug 23, 2026

Feature request: exploit Jacobian sparsity — dense treatment makes memory grow ~cubically with state count

#345

· YahorL opened

on Aug 19, 2026

Each start with a non-literal scalar expression fails: "shape mismatch in DAE evaluation for initial assignment value: expected N value(s), got 1"

#344

· YahorL opened

on Aug 19, 2026

For-loop der() equations silently freeze states past index 2 (exit 0, plausible CSV) — two known triggers

#343

· YahorL opened

on Aug 19, 2026

Code lens: `collect_model_names` doesn't recurse into packages, and naive recursion mis-qualifies nested model names

#336

· Hanatarou opened

on Aug 1, 2026

Opening a file never runs semantic diagnostics — `did_open` uses the same `DiagnosticsTrigger::Live` as `did_change`, so compilation only happens on save

#335

· Hanatarou opened

on Aug 1, 2026

`Modelica.Fluid.Examples.Tanks.ThreeTanks` fails structural lowering with structurally singular system

#330

· hjxy2012 opened

on Jul 23, 2026

·

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All issues

Tearing is implemented but never called; algebraic loops solved dense

--inspect structure reports index-3 models as singular although they simulate

Feature request: forward/adjoint sensitivity over a trajectory (diffsol already supports it)

set_input restarts the integrator on every call; batched application for co-simulation

Feature request: drive a SimulationSession from outside the process (stdio stepping mode)

fmi2 target rejects explicit algebraic assignments that 0.9.20 exported (regression)

Feature request: exploit Jacobian sparsity — dense treatment makes memory grow ~cubically with state count

Each start with a non-literal scalar expression fails: "shape mismatch in DAE evaluation for initial assignment value: expected N value(s), got 1"

For-loop der() equations silently freeze states past index 2 (exit 0, plausible CSV) — two known triggers

Code lens: `collect_model_names` doesn't recurse into packages, and naive recursion mis-qualifies nested model names

Opening a file never runs semantic diagnostics — `did_open` uses the same `DiagnosticsTrigger::Live` as `did_change`, so compilation only happens on save

`Modelica.Fluid.Examples.Tanks.ThreeTanks` fails structural lowering with structurally singular system

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