Are you using -NDEBUG in your C++ compilation?.


On Jan 11, 2008 3:43 PM, nisha kannookadan <nishak44@hotmail.com> wrote:

Hi all

I wrote a program in C++ with Boost and have the same program in Matlab.
The C++ is much faster for lil matrices (n=32) and vectors until the size around 250000,
but for bigger ones the program is bit slower than Matlab.
What I use in the program are ublas matrices, vectors
and some lil operations like solve, norm1, norm2, norm_inf and subrange
and subslice.
Can anybody tell me the reason, why Matlab get faster, the bigger the program gets?
The program is huge, so I cant post it here.
Is there some general comparison between C++/Boost and
Matlab.

Thanks a lot

Nisha K


_________________________________________________________________
Express yourself instantly with MSN Messenger! Download today it's FREE!
http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/
_______________________________________________
ublas mailing list
ublas@lists.boost.org
http://lists.boost.org/mailman/listinfo.cgi/ublas



--
 /     . _  _  .  Luis M. de la Cruz S.
( ( / / ( / ( / /   DCI-DGSCA-UNAM
      _/ _/       www.dci.dgsca.unam.mx/lmcs