[petsc-users] Real data structure with complex build

[Jed Brown]

Bikash Kanungo <bikash at umich.edu> writes:

> Hi,
>
> Is there a way to define the Mat(s) and Vec(s) to be real while working
> with a complex build of PETSc? 

No, there is no supported way to do this.

> I'm asking because part of my problem is real while the other part is
> complex. SO I'll be able to gain some performance and reduction in
> memory if I can specify the PETSc data structures in the real half of
> my code to be real.

Is the real part bigger and more difficult to solve than the complex
part?  If not, then don't worry about it; there would be little
performance to gain anyway.  If yes, then it goes on our list of apps
that could stand to benefit from supporting this (a difficult proposition).
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