[gembud] batch product generation

One can get hold of some pretty impressive horse power these days â cpu core 
count and massive system RAM.

I have experimental access to one such and am wanting to test batch submission 
of forecast maps to see just what I can get away with. Could I get 20 gdplot2 
jobs of 20 gfs forecast hours running on 20 cores simultaneously? 

I think Iâm asking whatâs a good way to submit gdplot2 image production in the 
background?

eg., if I currently plot GFS 250mb height, winds, and isotaches by running each 
forecast hour successively with:

ââââ
#!/bin/csh

# restore file gfs.215.nts has appropriate GDFILE specification

foreach fcst ( `seq -w 000 006 120` )

set outfile = 250wnd_gfs_f${fcst}.gif

  gdplot2<<END_INPUT 
   restore gfs.215.nts
   GDATTIM  = f${fcst}           
  \$MAPFIL  = TPPOWO.GSF
   GLEVEL   = 250  
   GVCORD   = pres 
   GDPFUN   = knts(mag(wnd)) ! hght ! kntv(wnd) 
   CINT     = ! 120 ! 
   TITLE    = 31/-3/GFS FORECAST INIT ^ ! 31/-2/${fcst}-HR FCST VALID ?~ ! 
31/-1/250-HPA HEIGHTS, WINDS, ISOTACHS (KT) 
   DEVICE   = GIF|$outfile|1880;1010 
   FINT     = 70;90;110;130;150;170
   FLINE    = 0;5;10;17;13;15;30
   TYPE     = f ! c ! b
  r

  exit
  END_INPUT 
gpend

end
ââââ

how could I modify this effort to submit each forecast hour job simultaneously 
onto the system?

And Iâm not averse to bash shell. If itâs much easier with bash, Iâll take any 
suggestions.

Neil