[petsc-users] SNES Multblock type

[Barry Smith]

> On Nov 25, 2016, at 2:38 PM, Arthur Besen Soprano <arthursoprano at gmail.com> wrote:
> 
> Hi,
> 
> I was just recently checking some of snes sources code and found a src\snes\impls\multiblock\multiblock.c which seemed to be a Non-linear (SNES) equivalent of the fieldsplit for linear problems (KSP).

   Yes it was an attempt to be something similar.

> However I was not able to use it and did not see any options available with the "-help " argument.
> 
> My question is: Is this module disabled? If not, how can I use it?
> 
> (using -snes_type multiblock or -npc_snes_type multiblock does not work...)

   It is not really functional at the moment. The only way for you to use it is to dig through the code to understand it and likely "fix it", that is change the code to do what it should do (note that it may not be clear what it should do). It also might be simpler to write a new SNESFIELDSPLIT that mimics PCFIELDPLIT We always welcome contributions.

  Barry

> 
> Thanks,
> 
> Arthur
> 
> -- 
> Arthur B. Soprano