[petsc-users] PetscOptionsGetString Not Finding Option

[Jared Crean]

     Hello Matt,
         Ok, something weird is going on.  Some of my test cases are 
behaving strangely (the output of the test in my previous message is the 
expected behavior, but previously the test gave different results).  Let 
me figure out what is going on with the tests before proceeding.

     Jared Crean

On 11/03/2015 10:07 PM, Matthew Knepley wrote:
> On Sat, Oct 31, 2015 at 7:52 PM, Jared Crean <jcrean01 at gmail.com 
> <mailto:jcrean01 at gmail.com>> wrote:
>
>     Hello,
>         I am trying to use PetscOptionsGetString to retrieve the value
>     of an option in the options database, but the value returned in
>     the last argument indicates the option was not found.   In the
>     attached code (a modified version of ksp example 2), the string
>     "-ksp_pc_side" is passed in as the argument name. If I run the code as
>
>         ./jc2 -pc_type ilu -ksp_pc_side right
>
>         I get the output:
>
>         option -ksp_pc_side was found
>
>
> You gave the options and the program says it was found. What is the 
> problem here?
>
>    Matt
>
>         from line 71 of the file.  Petsc does not complain of unused
>     options when the program finishes.  Am I using this function
>     incorrectly?
>
>         Jared Crean
>
>
>
>
> -- 
> What most experimenters take for granted before they begin their 
> experiments is infinitely more interesting than any results to which 
> their experiments lead.
> -- Norbert Wiener

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