[petsc-dev] cheby.c

[Hong Zhang]

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?
>>
>
>
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