tree 2d5322d2f9fafde0a298e95356f70962acc57957
parent 5794d41be2d8d6a67dcdfe607e66050f0ac04c55
author Sameer Agarwal <sameeragarwal@google.com> 1385387263 -0800
committer Sameer Agarwal <sameeragarwal@google.com> 1385488803 -0800

Better error checking and reporting for linear solvers.

A lot of error checking cruft has accumulated over the years
in the various linear solvers. This change makes the error reporting
more robust and consistent across the various solvers.

Preconditioners are not covered by this change and will be the
subject of a future change.

Change-Id: Ibeb2572a1e67758953dde8d12e3abc6d1df9052d