[petsc-users] minres and gmres difference

[Umut Tabak]

On 03/01/2011 11:08 PM, Barry Smith wrote:
> 10000 is the default maxium that we allow, so I think your run with the other orgonalization is  meaningless. Change the restart like I suggest in my email.
>    
Yep, then converges, so that you iterate for 146 times(for 155 restart). 
But it seems to me that with a low dimensional subspace it can not catch 
the information. And needs a lot of vectors and orthogonalization which 
makes it costly, are there any further comments?
Best,
Umut