Robert, You should be able to control this behavior using the "psrset" command on Solaris systems. mike On Aug 26, 2:48am, Robert Mullenax wrote: > Subject: Re: Gempak build with PGI compilers > > ... If you look at top while the script is running on the E6500 you will > see it "hopping" between CPUs..which of course slows it down. > Is there a way to prevent this?