open my $stdout_fh, '>>', 'test.log' or die $!;

 foreach my $hash ( @mps ) {
	$pssh->add_host( $ini{$hash}{host} ,
			 user     => $ini{$hash}{user},
			 port     => $ini{$hash}{port},
			 password => $ini{$hash}{psw},
			 default_stdout_fh => $stdout_fh );
    }