[Wien] optic in parallel mode

[白宇]

I run optic in parallel mode, my computer is a smp machine with two cpu, but error happened below:
running optic in parallel mode
[1] 2230
connect to address 127.0.0.1 port 544: Connection refused 
Trying krb4 rsh ...
connect to address 127.0.0.1 port 544: Connection refused
trying normal rsh...
localhost.localdomain:connection refused
localhost.localdomain:connection refused
optic crashed
can any one give me some suggestion?
Thank you and best wish.