Embedded Laplace: accept rank-deficient Hessian blocks in solver 1 and fix solver fallback reporting - #3419

Merged

SteveBronder merged 6 commits into

stan-dev:developfrom

jachymb:bugfix/laplace-solver-fixes

Sep 30, 2026

Commits on Sep 26, 2026

Use a symmetric eigensolver for the Laplace block Hessian square root

Jachym.Barvinek
and
claude
committed
744cfcf
Fix Laplace solver fallback reporting

Jachym.Barvinek
and
claude
committed
2b22b75
[Jenkins] auto-formatting by clang-format version 10.0.0-4ubuntu1
stan-buildbot
committed
8f8e8cd

Commits on Sep 28, 2026

Update stan/math/mix/functor/laplace_marginal_density_estimator.hpp

jachymb
and
SteveBronder
authored
eeb7792
Match the block_matrix_sqrt documentation and indentation to the relative tolerance

Jachym.Barvinek
and
claude
committed
5f22ff1

Commits on Sep 29, 2026

adds two std::once_flag values so that each solver bump can throw twice. Hides throwing conditionals behind cold compiler hint macro
SteveBronder
committed
45ee521