Newsgroups: comp.parallel.pvm
From: tlee@pace.eecs.wsu.edu (Tong-yee Lee - EECS (CPTS541))
Subject: help?
Organization: Washington State University
Date: Fri, 12 Apr 1996 00:00:32 GMT
Message-ID: <Dpq2ow.Ao1@serval.net.wsu.edu>

     I wrote a master/slave type application.
     (The size of program and its input data are small, so cache effect
      should be not a problem).
     I add 13 HP machines into PVM.
     I test my program using from 1 salve to 24 slaves by spwanning
     slave process.
      One master on a machine and the slaves on other machines (12).
     I found 24 slaves faster than 12 slaves. Why? Why 2 slaves on
     each machine will be faster than one slave on each machine.
     Another question is:
     If I just run two slaves on PVM which consists of 13 machines,
     this configuration  will be faster than run two slaves on PVM
     which consists of 3 machines (master on one and slaves on other
     two machines). All HP are same type and I tried my experiments
     at night time (to be sure  almost same loaded on each machine)
     Please point me to figure it out and send the reply to
     tlee@eecs.wsu.edu
      Thanks,
Lee



