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Multicore and multithreaded CPUs have become the new approach to obtaining increases in CPU performance. Numeric applications mostly benefit from a large number of computationally powerful cores. Servers typically benefit more if chip circuitry is used for maximizing throughput via multiple threads per core.
Typical job scheduling for parallel machines is done on a one-by-one basis because of the dynamic arrival of jobs and the different priorities of the jobs. In the general case, this does not provide the optimum solution from a global point of view. Thus, we propose an approach which selects a group of jobs from the waiting queue and hierarchically optimizes a longer-term scheduling plan. This becomes...
Navigation is an important aspect in web-site design to make information on web sites easy to find. Different navigation styles have been designed and employed on real-life web pages, most of the styles having good rationales as regards intuitiveness and ease of use. A study based on lay computer users investigates the theory that certain placement/ presentation styles for menus are more preferred...
Job scheduling typically focuses on the CPU with little work existing to include I/O or memory. Time-shared execution provides the chance to hide I/O and long-communication latencies though potentially creating a memory conflict. Hyperthreaded CPUs support coscheduling without any context switches and provide additional options for CPU-internal resource sharing. We present an approach that includes...
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