tree b52b0fee2ffba1919842869a05e80caa45ab45c4
parent 4c9c5d12f4f50feb5fe8b5ee382beeaf731c7331
author Sameer Agarwal <sameeragarwal@google.com> 1496424534 -0700
committer Sameer Agarwal <sameeragarwal@google.com> 1496426891 -0700

Do not create a SparseCholesky object when not needed.

SchurComplementSolver implements a variant of ITERATIVE_SCHUR
when explicit_schur_complement is set to true. In this case
the SparseCholesky object should not be instantiated. Even
though there is no CPU cost, it can be the case that ITERATIVE_SCHUR
is being used when there are not sparse linear algebra libraries
are available, and this can result in a crash.

Change-Id: I349d5f79201782689b3ab0ccc2c5001804b44c7b