[CentOS] High memory needs

> Anyone using VIRT to make decisions about resource utilization is
> completely ignorant of its function.

I agree. I don't understand why Sun Grid Engine does exactly that.
I posted a full explanation of this problem and the solution we used here:
https://www.centos.org/modules/newbb/viewtopic.php?topic_id=39499

Thanks for your feedback, it was useful to isolate the problem.