tree 67cb7ad780fe47b1001af69d5802ce1e95704979
parent 05fc04490fdd8e17b25c73ba5070c07246d64c2b
author Sameer Agarwal <sameeragarwal@google.com> 1523506354 -0700
committer Sameer Agarwal <sameeragarwal@google.com> 1523506502 -0700

Simplify IterativeRefiner

Change the loop structure of IterativeRefiner to
unconditionally refine for max_num_iterations.

This is done for two reasons.

1. We expect to use this refinement for a small number of iterations
   where the convergence test is useless.
2. Eliminating the convergence test means we can restructure the loop
   and save on a sparse matrix-vector multiply, saving precious
   compute.

Change-Id: I6347f453a5d19d234af2a2eb1bce811048963e06