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CVODE preconditioning: improve setting deprecation error #3426

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Merged
mikekryjak merged 1 commit into from
Jul 28, 2026
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CVODE preconditioning: improve setting deprecation error #3426

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5 changes: 3 additions & 2 deletions src/solver/impls/cvode/cvode.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -172,8 +172,9 @@ CvodeSolver::CvodeSolver(Options* opts)

if ((*options)["use_precon"].isSet()) {
throw BoutException("solver:use_precon is deprecated for CVODE and is now "
"ignored. Use solver:cvode_precon_method=none to disable "
"preconditioning.\n");
"ignored. To reproduce behaviour of use_precon=true, "
"set cvode_precon_method=user. This enables the Hermes-3 "
"physical preconditioners.\n");
}

// Add diagnostics to output
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