Creating a machinefile for Running Your MPI Program

Creating a machinefile for Running Your MPI Program

https://www.eecis.udel.edu/~pollock/367/manual/node10.html

A machinefile is a file that contains a list of the possible machines on which you want your MPI program to run. This file is useful if one of the Alphas is heavily loaded or is having problems. The particular machine you want to avoid can be commented out of the list of possible machines for selection. For example, jaguar is not possible for selection below.

sample machine file

porsche.cis.udel.edu cobra.cis.udel.edu corvette.cis.udel.edu ferrari.cis.udel.edu

jaguar.cis.udel.edu

lamborghini.cis.udel.edu lotus.cis.udel.edu maserati.cis.udel.edu viper.cis.udel.edu For convenience, your machinefile should be kept in the same directory as your executable MPI files and named something appropriate like machines. The name of your machinefile will be used as an argument to the mpirun option -machinefile, (see next section).

Lori Pollock Wed Feb 4 14:18:58 EST 1998