Hello,
 
    I'm testing same code compiling under MSVC 8.0 or gcc 3.4.2 on the same machine.
 
    I face two different problems around boost::dynamic_bitset :
 
        - with msvc version : dynamic_bitset  allocation is very, very slow (compare to gcc execution time),
        - with gcc version, it seems (i'm quiete sure) that dynamic_bitset  allocation take more and more time after several hours of intensive use.
 
    The two problem sound like a problem around dynamic_bitset allocation. Somebody did notice that ?
 
    Thanks for your help,
 
            Nadine