Thanks - I'll take a look at this (and the prior ones!) in the next couple of weeks when time permits and get back to you.
Ralph On 5/23/07 1:11 PM, "George Bosilca" <bosi...@cs.utk.edu> wrote: > Attached is another patch to the ORTE layer, more specifically the > replica. The idea is to decrease the number of strcmp by using a > small hash function before doing the strcmp. The hask key for each > registry entry is computed when it is added to the registry. When > we're doing a query, instead of comparing the 2 strings we first > check if the hash key match, and if they do match then we compare the > 2 strings in order to make sure we eliminate collisions from our > answers. > > There is some benefit in terms of performance. It's hardly visible > for few processes, but it start showing up when the number of > processes increase. In fact the number of strcmp in the trace file > drastically decrease. The main reason it works well, is because most > of the keys start with basically the same chars (such as orte- > blahblah) which transform the strcmp on a loop over few chars. > > Ralph, please consider it for inclusion on the ORTE layer. > > Thanks, > george. > > > _______________________________________________ > devel mailing list > de...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/devel
