Hi,<br><br>I am running a test in a single multicore machine (with intel core2quad processor), running Ubuntu 10.4 e mich2 1.2.1p1. <br><br>I have two programs: one sequential and the other is a mpi implementation with 2 processes. One process does nothing and the other has the same code as the sequential program. Both programs produce the same results, but the execution runtime of the sequential one (using one core) is bigger than the execution runtime of the mpi program (using 2 cores) executed through mpiexec.<br>
<br>How can I explain this? Does the mpd process manager execute a load balancing procedure that is not the same as the linux kernel?<br><br>Monica<br><br>