[petsc-dev] PCApplyTranspose in BiCG

Alexander Grayver agrayver at gfz-potsdam.de
Wed Apr 18 07:55:39 CDT 2012


>> Jed,
>>
>> Thank you.
>> TFQMR works well now, however TCQMR doesn't. Although latter was working before I updated petsc-dev. Might be same issue?
>     Please clarify. When was TCQMR working and when did it stop working? Was TCQMR working before you just updated in the last 24 hours?  Did TCQMR work a long time ago (like TFQMR worked a long time ago?)?

Barry, that looks weird, but seems to be true:

HG revision: a4dae06b4d05ef5b78a9a9aa2cbc31b2b158834f HG Date: Wed Feb 
08 11:29:52 2012 -0600 --- TFQMR works, TCQMR does not
HG revision: 59ca71b85d784abbe22f12c34ffcb2ccc6dc68b0 HG Date: Tue Mar 
20 01:05:13 2012 -0500 --- TFQMR does not work, TCQMR works
HG revision: 8f37c498b7b419ef0db5fb335a07c874e6dfe6d9 HG Date: Tue Apr 
17 21:06:44 2012 -0500 --- TFQMR works, TCQMR does not

Alexander

>
>      Barry



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