[Wien] hup: Command not found. Invalid null command.

[Stefaan Cottenier]

> -----> do you want to perform a spinpolarized calculation ? (n/y)
> y
>  > dstart -up (17:34:12) DSTART ENDS
> 0.7u 0.0s 0:01.32 59.0% 0+0k 0+192io 0pf+0w
>  > dstart -dn (17:34:14) DSTART ENDS
> 0.7u 0.0s 0:01.18 66.1% 0+0k 0+192io 0pf+0w
> -----> do you want to perform an antiferromagnetic calculation ? (N/y)
> N

The output above shows you initialize this as a spin-polarized case, 
while the lines hereunder show you run it as being non-spinpolarized:

> asverma at asverma-desktop:~/WORK/ni$ run_lapw -cc 0.0001
> hup: Command not found.
> LAPW0 END
> LAPW1 - Error

Solution: use runsp_lapw rather than run_lapw

Stefaan