[petsc-dev] PCApplyTranspose in BiCG

[Sean Farley]

>
>   A change in tfqmr that broke it? A change in some underlying thing that
> tfqmr that broke it.
>
>   The "correct" way to track down the "bad" change is to us bisection with
> mecurial http://www.selenic.com/mercurial/hg.1.html#bisect it lets you
> quickly zoom into the change set that causes the change.


Don't forget that since we don't use subrepositories you'll have to do a
little bit extra to get buildsystem to work:

http://www.mcs.anl.gov/petsc/documentation/faq.html#bisect
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