PETSC_ARCH variable --> PETSC_CONF

[Barry Smith]

On Nov 30, 2009, at 3:51 PM, Boyana Norris wrote:

> Why not recognize both? It's fairly trivial to check for PETSC_CONF  
> if PETSC_ARCH is undefined and internally define PETSC_ARCH using  
> PETSC_CONF.

   This is a make variable. I am not sure that it is trivial to check  
if a variable is set and use something else otherwise in a tidy way in  
make. Plus I had the idea of having two variables that mean the same  
thing.

   Barry


>
> Boyana
>
> --
> Boyana Norris, Computer Scientist, Argonne National Laboratory
> norris at mcs.anl.gov, +1.630.252.7908, http://www.mcs.anl.gov/~norris/
>
> On Nov 30, 2009, at 3:43 PM, Matthew Knepley wrote:
>
>> On Mon, Nov 30, 2009 at 3:38 PM, Barry Smith <bsmith at mcs.anl.gov>  
>> wrote:
>>
>>   I guess the argument is that on occasion in the future a certain  
>> number of people will misinterpret the meaning of PETSC_ARCH  
>> frustrating them and us; the number misinterpreting PETSC_CONF will  
>> be much smaller or zero saving people's time and energy.
>>
>> This will be far outweighed by the number of people complaining  
>> about such a change. I agree with them.
>>
>>   Matt
>>
>>   Barry
>>
>>
>> On Nov 30, 2009, at 3:25 PM, Matthew Knepley wrote:
>>
>> I see the point, but this is one of the oldest parts of PETSc, and  
>> I am hesitant to change one
>> arbitrary name to another without a more convincing reason.
>>
>>   Matt
>>
>> On Mon, Nov 30, 2009 at 2:17 PM, Barry Smith <bsmith at mcs.anl.gov>  
>> wrote:
>>
>>  Lisandro has pointed out to me several times that the variable  
>> name PETSC_ARCH can be confusing; some people may think it is  
>> related to the architecture of the machine and don't understand  
>> that it is an arbitrary name that the user can make up. He  
>> suggested changing it to PETSC_CONF to be clearer.
>>
>>  Should we change it? Use something else?
>>
>>    Barry
>>
>>
>>
>>
>> -- 
>> 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
>>
>>
>>
>>
>> -- 
>> 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
>