Replace Hairer-Wanner initdt with CVODE CVHin for deterministic solvers#3161

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ChrisRackauckas-Claude wants to merge 21 commits into

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ChrisRackauckas-Claude:stiff-initdt-v2

Commits on Mar 22, 2026

Replace Hairer-Wanner initdt with CVODE CVHin for deterministic solvers
ChrisRackauckas
committed
Fix backward integration, GPU compatibility, and Runic formatting in CVHin
ChrisRackauckas
committed
Always use order-dependent formula in CVHin, clamp to hub
ChrisRackauckas
committed
Fix stats.nf tracking and GPU compatibility in CVHin

ChrisRackauckas
and
claude
committed
Fix ForwardDiff.Dual compatibility in CVHin initdt

ChrisRackauckas
and
claude
committed
Revert SUNDIALS curvature threshold, use formula-always approach

ChrisRackauckas
and
claude
committed
Fix Unitful, zero-length vector, and mixed-unit ArrayPartition compatibility in CVHin
ChrisRackauckas
committed
Fix ComplexF64 compatibility and rename numers to nums for spell check
ChrisRackauckas
committed
Fix GPU ComplexF64 bug and update test tolerances for CVHin initdt
ChrisRackauckas
committed
Fix Runic formatting: use 1.0e-6 instead of 1e-6
ChrisRackauckas
committed
Fix remaining CI failures: update test tolerances for CVHin initdt
ChrisRackauckas
committed
Fix ODEInterface atol and extrapolation cross-precision comparison
ChrisRackauckas
committed
Fix DelayDiffEq rosenbrock and parameters test tolerances for CVHin
ChrisRackauckas
committed
Fix Unitful DimensionError in CVHin OOP path and widen rosenbrock rtol
ChrisRackauckas
committed
Fix DelayDiffEq rosenbrock and multi_algorithm tests for CVHin
ChrisRackauckas
committed
Fix RKN adaptive IIP-vs-OOP tests and Rosenbrock32 DDE tolerance
ChrisRackauckas
committed
Widen RKN endpoint atol and Vern7 DDE error threshold for CVHin
ChrisRackauckas
committed
Replace RKN adaptive IIP-vs-OOP endpoint comparison with retcode check
ChrisRackauckas
committed
Fix Runic formatting and typo in inference.jl from PR #3202

ChrisRackauckas
and
claude
committed
Fix Runic formatting in alg_utils.jl files from PR #3202

ChrisRackauckas
and
claude
committed
Guard AutoVern7+Rodas5P inference test for Julia >= 1.11

ChrisRackauckas
and
claude
committed

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Replace Hairer-Wanner initdt with CVODE CVHin for deterministic solvers#3161

Replace Hairer-Wanner initdt with CVODE CVHin for deterministic solvers#3161
ChrisRackauckas-Claude wants to merge 21 commits into
SciML:masterfrom
ChrisRackauckas-Claude:stiff-initdt-v2

Commits on Mar 22, 2026

Replace Hairer-Wanner initdt with CVODE CVHin for deterministic solvers

Fix backward integration, GPU compatibility, and Runic formatting in CVHin

Always use order-dependent formula in CVHin, clamp to hub

Fix stats.nf tracking and GPU compatibility in CVHin

Fix ForwardDiff.Dual compatibility in CVHin initdt

Revert SUNDIALS curvature threshold, use formula-always approach

Fix Unitful, zero-length vector, and mixed-unit ArrayPartition compatibility in CVHin

Fix ComplexF64 compatibility and rename numers to nums for spell check

Fix GPU ComplexF64 bug and update test tolerances for CVHin initdt

Fix Runic formatting: use 1.0e-6 instead of 1e-6

Fix remaining CI failures: update test tolerances for CVHin initdt

Fix ODEInterface atol and extrapolation cross-precision comparison

Fix DelayDiffEq rosenbrock and parameters test tolerances for CVHin

Fix Unitful DimensionError in CVHin OOP path and widen rosenbrock rtol

Fix DelayDiffEq rosenbrock and multi_algorithm tests for CVHin

Fix RKN adaptive IIP-vs-OOP tests and Rosenbrock32 DDE tolerance

Widen RKN endpoint atol and Vern7 DDE error threshold for CVHin

Replace RKN adaptive IIP-vs-OOP endpoint comparison with retcode check

Fix Runic formatting and typo in inference.jl from PR #3202

Fix Runic formatting in alg_utils.jl files from PR #3202

Guard AutoVern7+Rodas5P inference test for Julia >= 1.11