tree d2c897b0a36343335cb622b8b64d9f7cc43e1250
parent ac7b33d0fc31bad9f71b813ea5f46a3f8216d783
author RanaPriyansh <priyanshrana18@gmail.com> 1791466003 +0530
committer Priyansh Rana <priyanshrana18@gmail.com> 1792174567 -0700

Test explicit iterative Schur solves

Compare explicit ITERATIVE_SCHUR solutions with dense QR through the
existing Schur test helper. Cover regularized and unregularized systems,
zero retained blocks, and varying retained block sizes.

Use SCHUR_JACOBI, NO_SPARSE, and a residual tolerance of 1e-12.

Addresses https://github.com/ceres-solver/ceres-solver/issues/290.

Codex used.

Change-Id: I3b9efdf5f2d08cc4cff66b6babdabcde822966da