[petsc-users] PetscOptionsGetString Not Finding Option

[Jared Crean]

     Hello Matt,
         There was a problem with the way I was doing the tests, not 
with PetscOptionsGetString.  PetscOptionsGetString now behaves as 
expected in all tests.  Sorry for the confusion.

         Jared Crean

On 11/03/2015 10:37 PM, Jared Crean wrote:
>     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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