[petsc-users] about ksp

[Likun Tan]

It is 27*27 with 343 non-zeros, i use LU for all the linear equations.


On Mon, August 29, 2011 5:46 pm, Jed Brown wrote:
> On Mon, Aug 29, 2011 at 16:36, Likun Tan <likunt at andrew.cmu.edu> wrote:
>
>
>> If i keep using the uncoupled small system and use ksp to solve the
>> linear equations sequentially, there is nowhere i can take advantage of
>> parallel computing.
>>
>
> How small are your systems? Maybe you should just create the same matrix
> on every processor and do a direct solve with all the right hand sides.
>