Opteron Fortran (was Re: flood of bounces frompostmaster at syst emsfirm.net)

Daniel Kidger Daniel.Kidger at quadrics.com
Wed Oct 22 09:53:51 EDT 2003

>From: Brian Dobbins [mailto:brian.dobbins at yale.edu]
> Also, if you do happen to run jobs > 4GB, make sure you 
> update the 'top' 
> version you're using (procps.sourceforge.net).  Previous versions had 
> wraparound at the 4GB mark, and it's cool seeing a listing 
> say something  to the effect of "7.7G" next to the size.  :)

On the subject of top another caveat is that top is hard-coded at compile
about what it thinks the pagesize is.

If you compile kernels with bigger pagesizes (generally a 'good thing' for
large memory nodes) then 'top' gets the memory used by your programs wrong
by a factor of x2,x4 etc. !


Dr. Dan Kidger, Quadrics Ltd.      daniel.kidger at quadrics.com
One Bridewell St., Bristol, BS1 2AA, UK         0117 915 5505
----------------------- www.quadrics.com --------------------

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