From: Lars Rzymianowicz Newsgroups: comp.parallel.mpi Subject: Re: Some problems with permissions in other machines. Date: Tue, 10 Nov 1998 09:06:52 +0100 Organization: Dept. of Computer Engineering, University of Mannheim, Germany Message-Id: <3647F41C.A62E36EA@mufasa.informatik.uni-mannheim.de> References: <364149D3.D67B19CB@scl.ameslab.gov> <3646D0C8.B68B1994@alumnes.eup.udl.es> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Ferran Eloi wrote: > then I've tried to execute in 2 machines, but the execution gives me one > error, exactly a permission denied; > my machinefile I think is correct typed,. I'm root on two machines and > I've copied the executable to the root directories of 2 machines. Hi Ferran, "permission denied" is one of the first points in the User Guide, chapter Common Errors ;-) As stated by someone else, you need an .rhosts file to start apps using rsh. And you have to be a non-root user, since root is always asked for a password. This makes MPI fail. Reason? Well, you don't want to let a root on one machine be the root on all machines... Lars -- Homepage: http://mufasa.informatik.uni-mannheim.de/lsra/persons/lars/