Hello, You need to setup passwordless ssh between the nodes. Please see the README for more instructions. Regards, — Pavan From: Ярослав Иванов <[email protected]<mailto:[email protected]>> Reply-To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Date: Sunday, February 16, 2014 at 4:48 AM To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Subject: [mpich-discuss] Several nodes and typewrite several password Hello! When I try to exec my program on several machines, there is some trouble: When I use one node, there is all right. Before starting, system ask me: mpiu@ub1's password: ... But, when I try with two nodes: mpiu@ub2's password: mpiu@ub1's password: ... On one line! I try to typewrite password, but there is just stop and don't work. Without any issues or errors messages. I use mpich 1.4.1 and Ubuntu 12. -- С уважением, Иванов Ярослав