> > Have you seen any real world example of this? > > At the unsophisticated end, there are lots of (Fortran) HPC applications > with very large static array declarations but only "use" a small fraction > of that. Those users know they only need a small fraction and are happy > to volunteer small physical memory limits that we (admins/queuing > systems) can apply. > > At the sophisticated end, the use of numerous large memory maps in > parallel HPC applications to gain visibility into other processes is > growing. We have processes with VSZ > 400GB just because they have > 4GB maps into 127 other processes. Their physical page use is of > the order 2GB. Ah, agreed. Fujitsu HPC user said similar things ago. _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers
