ssh account@remote.machine.intern -c 'perl -w whatever.pl'

##</code><code>##

use strict;
my @machines = qw( worker1 worker2 worker3 );

my @cmd = @ARGV;
my $ssh = 'ssh';

for my $machine (@machines) {
    my @commandline = $ssh, $machine, '-c', @cmd;
    print "[$machine] @commandline\n";
    system(@commandline) == 0
        or warn "Couldn't launch >>@cmd<< on $machine: $! / $?";
};

##</code><code>##

...
    # Linux parallel, watch out for quoting with your shell!
    system("@commandline &") == 0
...

##</code><code>##

...
    # Windows parallel, watch out for quoting with your shell!
    system(1, @commandline) == 0
...