[petsc-users] Output newton step

[Barry Smith]

> 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