I use the MPICH2 to parallelize my algorithm on an i5 machine, is the time calculated in this type of machinery is the time actually consumed or estimated in my programe? I ask this question because someone told me that if you do not work on a parallel machine then even if you calculate the execution time in your parallel algorithm and you compare it with the algorithm that you do not use parallelism is not correct.effectively I tried to compare the execution time of both programs but really I find that there's a accelerartion when I use the parallelism _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss