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This paper concerns a dynamic scheduling problem for a queueing system that has two streams of arrivals to innnite capacity buuers and two (non-identical) servers working in parallel. One server can only process jobs from one buuer, whereas the other server can process jobs from either buuer. The service time distribution may depend on the buuer being(More)
rights reserved. Personal scientiic non-commercial use only for individuals with permission from the authors (williams@math.ucsd.edu). Abstract This paper concerns a dynamic scheduling problem for a queueing system that has two streams of arrivals to innnite capacity buuers and two (non-identical) servers working in parallel. One server can only process(More)
We consider a parallel server queueing system consisting of a bank of buffers for holding incoming jobs and a bank of flexible servers for processing these jobs. Incoming jobs are classified into one of several different classes (or buffers). Jobs within a class are processed on a first-in-first-out basis, where the processing of a given job may be(More)
A 300-MHz, custom 64-bit VLSI, second-generation Alpha CPU chip has been developed. The chip was designed in a 0.5-um CMOS technology using four levels of metal. The die size is 16.5 mm by 18.1 mm, contains 9.3 million transistors, operates at 3.3 V, and supports 3.3-V/5.0-V interfaces. Power dissipation is 50 W. It contains an 8-KB instruction cache; an(More)
The circuit techniques used to implement a 600MHz, out-of-order, superscalar RISC Alpha microprocessor are described. Innovative logic and circuit design created a chip that attains 30+ SpecInt95 and 50+ SpecFP95, and supports a secondary cache bandwidth of 6.4GB/s. Microarchitectural techniques were used to optimize latencies and cycle time, while a(More)
We consider a parallel server queueing system consisting of a bank of buffers for holding incoming jobs and a bank of flexible servers for processing these jobs. Incoming jobs are classified into one of several different classes (or buffers). Jobs within a class are processed on a first-in-first-out basis, where the processing of a given job may be(More)
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