Last top500 lists contain a set of sites which are not from HPC world.
sure - it always has. top500 is not particularly HPC-specific, since linpack only weakly measures important factors like memory and interconnect bandwidth and latency. the main appeal of linpack is that it's pretty well-understood and uses hardware (FPUs) present in all conventional machines...
I understand that there may be parallelized applications which may use whole cluster for one task, but this task isn't floating-point oriented.
I would almost say that linpack is not particularly about FP (since you can derive integer rates from the scores if you want.)
etc. IMHO they may use clusters for Web-hosting etc, where may be load balancing is used. I.e. it's not "supercomputer" (I means computer, all CPUs/cores of which may be used for solving of one task).
I think it's more common than you think for clusters to be load-balanced among many applications - or conversely that single-job clusters, which might strictly be called "capability", are rare. _______________________________________________ Beowulf mailing list, [email protected] sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
