PBS multi-cpu sends

[J. RAHEB]

hello,

as I get very little response from the pbs mailing list I'm sending this
here. I am trying to send a job to my que so that it takes all the cpus of
a node when it is queued.  SO i have 2 nodes with 2 CPUs and 2 nodes with
single CPUs.  In the PBS manual it says to do this:

-l nodes=2:ppn=2+2:ppn=1 

so this will send to 2 nodes with 2 virtual processors and 2 nodes with 1
virtual processor, is this right or have I got it all wrong???

Thanks,
Joey