Dear R Users, I'm using Rmpi package for paralleling computing. It's very useful. But I have two question: 1. before running processes on slaves, all the data should be sent to them. however, if i forget to broadcast some of the data, the master will freeze, and I have to kill the process manually. I'm wondering whether it is possible to let master stop automatically and show error message that some data are not available on slaves. 2. I observed that the results obtained via Rmpi are usually a little different from those obtained via non-parallel process. Is that possible or i have done something wrong? Thanks, Zhiliang