[petsc-users] About Configuring PETSc

[Balay, Satish]

PETSc uses the concept of PETSC_ARCH to enable multiple in-place
builds.

So you can have a debug build with PETSC_ARCH=arch-debug, and a
optimized build with PETSC_ARCH=arch-opt etc.

And if you are using a petsc formatted makefile with your code - you
can switch between these builds by just switching PETSC_ARCH.

Satish

On Thu, 21 Mar 2019, Maahi Talukder via petsc-users wrote:

> Dear All,
> 
> Currently, I am running PETSc with debugging option. And it says that if I
> run ./configure --with-debugging=no, the performance would be faster. My
> question is: what would I do if I want to go back to debugging mode, and If
> I configure it now with no debugging option, would it make any changes to
> my current setting?
> 
> Regards,
> Maahi Talukder
>