Difference between debugging and optimized version of PETSc

[Matthew Knepley]

On 1/29/07, Ben Tay <zonexo at gmail.com> wrote:
>
> Sorry I don't really understand.
>
> So is there any difference in optimization between the 2 libraries?  Or is
> it just extensive additional "assert type"?
>

As I pointed out the the previous mail, you should read the compiler
documentation.

   Matt

Thank you.
>
>
> On 1/30/07, Barry Smith <bsmith at mcs.anl.gov> wrote:
> >
> >
> > PETSc also does extensive additional "assert type" testing of input
> > arguments
> > to functions etc in the debug version.
> >
> >   Barry
> >
> >
> > On Mon, 29 Jan 2007, Matthew Knepley wrote:
> >
> > > On 1/29/07, Ben Tay <zonexo at gmail.com> wrote:
> > > >
> > > > Hi,
> > > >
> > > > May I know what's the difference between the optimized and debugging
> >
> > > > version?
> > > >
> > > > Have the optimization flags such as -O3 been used in the
> > compilcation of
> > > > the libraries for the optimized one? Whereas for the debugging
> > version,
> > > > there is no optimization by the compiler?
> > > >
> > >
> > > It is just the difference in compiler flags. You would have to look at
> > the
> > > compiler documentation.
> > >
> > > If my program works fine in the debugging version, does it mean that I
> > will
> > > > not get errors in the optimized version?
> > > >
> > >
> > > Most likely.
> > >
> > >   Matt
> > >
> > > Thanks
> > > >
> > >
> >
> >
>


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