about sh-mem mechanism

[Jose Luis Gordillo Ruiz]

 Hi Pete,

 how can i disable shared mem communications between process in
 a SMP node?

  by the way, why mpiexec uses shmem by default in SMP nodes? i think
  most people uses sockets. indeed, i think there is no performance
  gain by using shmem vs. sockets (a parallel program is as fast as its
  slowest process).

 thanks again