<div dir="ltr"><div dir="ltr">On Wed, Sep 25, 2019 at 1:52 PM Mark Adams via petsc-dev <<a href="mailto:petsc-dev@mcs.anl.gov">petsc-dev@mcs.anl.gov</a>> wrote:<br></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">It's been a few years since we lost the ability to cache the eigen estimates, that smoothed aggregation computes, to chebyshev smoothers. I'd like to see if we bring this back.<div><br></div><div>This is slightly (IMO) complicated by the fact that the smoother PC may not be Jacobi, but I think it is close enough (and an overestimate probably). Maybe provide a chevy option to chebyshev_recompute_eig_est.</div><div><br></div><div>What do people think?</div></div>
</blockquote></div><br clear="all"><div>Okay, it seems like they should be stored in GAMG. Why would the PC type change anything?</div><div><br></div><div> Thanks,</div><div><br></div><div> Matt</div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div>What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.<br>-- Norbert Wiener</div><div><br></div><div><a href="http://www.cse.buffalo.edu/~knepley/" target="_blank">https://www.cse.buffalo.edu/~knepley/</a><br></div></div></div></div></div></div></div></div>