Re: [boost] Re: N-Dimensional array library submission...

From: Beman Dawes (bdawes_at_[hidden])
Date: 2001-12-21 08:58:58

At 03:42 AM 12/21/2001, tknapen wrote:

 >--- In boost_at_y..., Ron Garcia <garcia_at_c...> wrote:
 >> Hi,
 >>
 >> I have uploaded a library called multi_array to the files directory.
 >
 >2 questions:
 >
 >1) performance
 >Have you measered performance compared to plain C-arrays ?
 >I just wrote a small test in 2 minutes and have some strange results.
 >The C-array indexing takes 0.9 seconds where-as the multi-array takes
 >2.92 seconds. (see below for small test program). Can this be due to
 >the []-indexing.

Just out of curiosity, was this a debug or an optimized build?

Do you know if the compiler involved normally has a low abstraction 
penalty?

--Beman