[petsc-dev] Do you have any suggestion in order to reduce my memory footprint?

[Barry Smith]

   What do you get for -ksp_view ?

   You should very likely be using the -pc_type gamg if it is an unstructured grid problem or you are using your own mesh data structure or -pc_type mg if you are using the DMDACreate1/2/3()  

   Barry

> On Oct 19, 2014, at 3:58 PM, Alletto, John M <john.m.alletto at lmco.com> wrote:
> 
> All,
>  
> I have a 64 bit linux machine with 256 GByte of memory and 30 processors.
> I am solving Laplace equations and the current solver I am using is taking every bit of memory I have available.
>  
> Do you have any suggestions (such as changing precision or changing solvers or something else) in order to reduce my memory footprint?
>  
> Many Thanks
> John