[petsc-users] Matrix format mpiaij does not have a built-in PETSc XXX!

[Bojan Niceno]

Hi all,

On 2/28/2012 5:41 PM, Matthew Knepley wrote:
> Look, I already replied to this, and now Jed had to reply again. If 
> you are not going to read our mail, why mail the list?

I am reading your messages, all right, but I also read PETSc's errors 
and manuals.


Look what the manual says on ICC:

http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/PC/PCICC.html

"Notes: Only implemented for some matrix formats. Not implemented in 
parallel."


And on ILU:

http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/PC/PCILU.html

"Notes: Only implemented for some matrix formats. (for parallel see 
PCHYPRE 
<http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/PC/PCHYPRE.html#PCHYPRE> 
for hypre's ILU)"


So Matt, if I understand your answer correctly, one should use PCASM to 
get ILU in parallel, right?  What if I want IC?


     Thanks,


     Bojan

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