[petsc-dev] tao and complex numbers

[Barry Smith]

> On Feb 8, 2015, at 11:11 AM, Lisandro Dalcin <dalcinl at gmail.com> wrote:
> 
> On 8 February 2015 at 19:39, Barry Smith <bsmith at mcs.anl.gov> wrote:
>> 
>>  Since all the TAO implementations seem to have
>> 
>> #requiresscalar    real
>> 
>> in the makefile why don't we just move that up to the tao directory level and put an error generator in tao.h if included with complex so users see immediately and clearly they cannot us tao with complex instead of having to send us email?
>> 
> 
> I'm afraid this will break petsc4py in a hard-to-fix way.

   How? Do you do two builds with petsc4py once with real and once with complex?

> Why not to
> just generate an error at TaoCreate()?

   I prefer the error at compile time, not run time.

  Barry

> 
> 
> -- 
> Lisandro Dalcin
> ============
> Research Scientist
> Computer, Electrical and Mathematical Sciences & Engineering (CEMSE)
> Numerical Porous Media Center (NumPor)
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