Am 26.08.2013 um 12:15 schrieb Federico Carotenuto: > I'm currently having this issue with mpirun: I want to launch a program only > on the cores of the local machine, but every time I run an mpi program it > says that the host 127.0.0.1 <local_machine_name> with it's associated key is > unkown and asks me if I want to add it to the list of ssh known hosts. > > By chowing/chmodding the .ssh file I was able to permanently add this "host" > to the list of known hosts, but my problem is that every program that I try > to run ask me to insert a password (the actual local user password) n times > where n is equal to the -np parameter (i.e.: if I run the program on 8 cores > I receive 8 successive password pronts). > > If I insert the password everything runs fine, but it's quite annoying and I > wish to bypass such step: is there a way to have mpirun memorize the > password? Or make him understand that the 8 nodes are actually 8 cores on the > local machine and not 8 different hosts?
Which hostname do you specify in your machinefile? Which hostnames are set in /etc/hosts for your local machine? What is the output of `hostname`? Does it match the one in the machinefile? For systemd there is a new command `hostnamectl --static set-hostname [NAME]` to set it. -- Reuti
