Network- vs. host-based processing: Lessons learned

摘要

CPU CLOCK SPEEDS have remained essentially constant over the past several years, resulting in a rapid rise in the number of CPUs used in high-end systems to keep pace with the performance boosts predicted by Moore's Law. System size on the Top 500 list of supercom-puting sites has changed rapidly; in November 2009, the top 10 systems averaged 134,893 cores, with five systems larger than 100,000 cores. This rapid increase of system size and the associated proliferation of compute elements used in a single user job have increased the urgency of addressing system characteristics that impede application scalability.