We currently have dual opeteron server which is going to be used as compile node for our in-house cluster. We are planning to buy EM64T based nodes for the cluster. What I want to know is that do I need to set up cross compilation or normal binary would run without any problem on the EM64T. Can all the optimizations done for Opterons work with out any problem on the EM64Ts. Thanks, Bharath --- Bharath Ramesh <bramesh@vt.edu> http://csgrad.cs.vt.edu/~bramesh