Barry, Do you recall the paper or detailed Chebyshev algorithm that you implemented the Chebyshev in petsc? I added 'hybrid' to it, which is not correct. Jie is helping to fix it. Having an original algorithm would help.
On Tue, May 22, 2012 at 1:21 PM, Jie Chen <jiechen at mcs.anl.gov> wrote: > >> Then do you know who wrote the code? Hong said it was you. >> > > It was written in the 90s, before version control history. > Sorry, my mistake. I recall that Barry said that he wrote it when Jed was in dia... ;-( Hong > > >> >> Hong is trying to modify the code but there is something wrong. I am >> helping to see what is the problem. The code itself is fine. > > > Hard to speculate without more than "something wrong". > > >> >> Jie >> >> >> >> ----- Original Message ----- >> From: "Jed Brown" <jedbrown at mcs.anl.gov> >> To: "Jie Chen" <jiechen at mcs.anl.gov>, "For users of the development >> version of PETSc" <petsc-dev at mcs.anl.gov> >> Sent: Tuesday, May 22, 2012 1:18:07 PM >> Subject: Re: cheby.c >> >> >> On Tue, May 22, 2012 at 12:37 PM, Jie Chen < jiechen at mcs.anl.gov > wrote: >> >> >> Jed, I am reading your implementation of the chebyshev code. The >> algorithm does not seem to be the same as the version I am familiar with. >> Did you implement it according to some paper or book? >> >> >> >> I didn't write it. >> >> >> What do you find strange? >> > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-dev/attachments/20120522/af2f5506/attachment.html>