[petsc-users] Output newton step

[Alex Lindsay]

Thanks Barry that helps a lot. It looks like the defaults for me (PetSc 
3.6.0 release) are stdout for -ksp_view_solution and draw for 
-snes_monitor_solution_update. I don't see any binary files generated 
with the defaults.

On 11/30/2015 05:56 PM, Barry Smith wrote:
>> On Nov 30, 2015, at 2:19 PM, Alex Lindsay <adlinds3 at ncsu.edu> wrote:
>>
>> Is there an option for outputting the Newton step after my linear solve?
>>
>> Alex
>     Do you want the solution of the linear system before the line search (line search may shrink the vector) use -ksp_view_solution or the actual update selected by Newton -snes_monitor_solution_update
>
>     If you use the master branch of PETSc then both of these flags take the option
>
>      [ascii or binary or draw][:filename][:viewer format]
>
>    allowing printing as ascii, binary or drawing the solution in a window (Drawing only works for DMDA 1d or 2d).
>
>     Barry
>
>    For the release version of PETSc it saves the vectors in a binary file called binaryoutput
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