Fix StiffBVP: replace obsolete nest_tol with nested_nlsolve_kwargs

ChrisRackauckas · ChrisRackauckas · commit 4c65bc6c304a · 2026-07-23T16:51:35.000-04:00
BoundaryValueDiffEqFIRK removed nest_tol from the RadauIIa*/Lobatto*
constructors in favor of nested_nlsolve_kwargs::NamedTuple. Passing
nest_tol now errors; use abstol/reltol via nested_nlsolve_kwargs.

Co-Authored-By: Chris Rackauckas &lt;accounts@chrisrackauckas.com&gt;
diff --git a/benchmarks/StiffBVP/ionic_liquid_dehumidifier.jmd b/benchmarks/StiffBVP/ionic_liquid_dehumidifier.jmd
@@ -227,7 +227,7 @@ bvp_fun = BVPFunction(
 )
 
 prob = TwoPointBVProblem(bvp_fun, u0, tspan, p)
-sol = solve(prob, RadauIIa7(nested_nlsolve = true, nest_tol = 1e-3), dt = dt, abstol = 1e-5)
+sol = solve(prob, RadauIIa7(nested_nlsolve = true, nested_nlsolve_kwargs = (; abstol = 1e-3, reltol = 1e-3)), dt = dt, abstol = 1e-5)
 testsol = TestSolution(sol)
 wp_set = WorkPrecisionSet(prob, abstols, reltols, getfield.(solvers_all, :solver);
     names = getfield.(solvers_all, :name), appxsol = testsol, maxiters = Int(1e4))

Original file line number	Diff line number	Diff line change
`@@ -227,7 +227,7 @@ bvp_fun = BVPFunction(`
`227`	`227`	`)`
`228`	`228`
`229`	`229`	`prob = TwoPointBVProblem(bvp_fun, u0, tspan, p)`
`230`		`-sol = solve(prob, RadauIIa7(nested_nlsolve = true, nest_tol = 1e-3), dt = dt, abstol = 1e-5)`
	`230`	`+sol = solve(prob, RadauIIa7(nested_nlsolve = true, nested_nlsolve_kwargs = (; abstol = 1e-3, reltol = 1e-3)), dt = dt, abstol = 1e-5)`
`231`	`231`	`testsol = TestSolution(sol)`
`232`	`232`	`wp_set = WorkPrecisionSet(prob, abstols, reltols, getfield.(solvers_all, :solver);`
`233`	`233`	`names = getfield.(solvers_all, :name), appxsol = testsol, maxiters = Int(1e4))`