Re: [pooma-dev] GCC 3.2 on Redhat 8.0--a fair number of compiler warnings?

[Richard Guenther]

On 23 Apr 2003, George Talbot wrote:

> Hi,
>
> New POOMA II user.  Got everything to compile and link today.  The
> performance of this stuff is shocking.
>
> I ran a hand coded version of your 2D diffusion program on my box for
> 250 steps, 800x800 array.  1m34s, uniprocessor.
>
> Using a stencil, same box, uniprocessor.  25s.  WOW.
>
> Using -shmem -np 2 to distribute the shared array version on both of my
> processors on my box.  12s.  Truly amazing.  I think this may be a
> dramatically useful tool.

You will find gcc-3.3 even more useful, combined with careful inline
parameter tuning!

> The only thing that irks me a bit is that there are a fair number of
> compiler warnings, which I will append, along with the source I used, to
> this e-mail.  Is this normal?  Swimming in a sea of warnings from the
> POOMA headers, I might miss some on my own code...

Without -Wall I dont see warnings from the POOMA headers with g++/icpc,
but you are right, theres something to clean up. But as time is always
short, fixing warnings that dont annoy me is not very high on my priority
list. But I'm sure we're accepting patches to correct them (maybe...).

Richard.