This is my machinefile node-1-16 slots=2 node-1-17 slots=2 node-1-18 slots=2 node-1-19 slots=2 node-1-20 slots=2 node-1-21 slots=2 node-1-22 slots=2 node-1-23 slots=2
Each cluster node has 2 processors. I launch my application with 3 processes, one on node-1-16 (manager) and two on node-1-17(workers). Two processes on node-1-17 communicate each other. 2011/3/27 Michele Marena <michelemar...@gmail.com> > Hi, > My application performs good without shared memory utilization, but with > shared memory I get performance worst than without of it. > Do I make a mistake? Don't I pay attention to something? > I know OpenMPI uses /tmp directory to allocate shared memory and it is in > the local filesystem. > > I thank you. > Michele. >
