Digital's AlphaServer multiprocessor systems are high-performance servers that combine multiprocessing technology with PC-style I/O subsystems. The system architecture allows four processing nodes, four memory nodes (up to a maximum of 2 GB), and two I/O nodes. All nodes communicate through a system bus. The system bus was designed to support multiple generations of Alpha processor technology. ...

The F A I M 1 is an ultra-concurrent symbolic multiprocessor which attempts to significantly improve the performance of AI systems. The system includes a language in which concurrent AI application programs can be written, a machine which provides direct hardware support for the language, and a resource allocation mechanism which maps programs onto the machine in order to exploit the program's ...

This paper presents a model to evaluate the performance and overhead of parallelizing sequential code using compiler directives for multiprocessing on distributed shared memory (DSM) systems. With increasing popularity of shared address space architectures, it is essential to understand their performance impact on programs that benefit from shared memory multiprocessing. We present a simple mod...

We discuss the concepts underlying Rediflow, a multiprocess ing system be ing designed to support concurrent programm ing through a hybrid model of reduction , dataflow, and von Neumann processes. The techniques of automatic load-balan cing in Rediflow are described in som e detail.

Small problems in computer algebra can be done with moderate time and storage. However, even simply stated problems of medium size can be very expensive to compute. Many such problems run out of storage or take excessive time. Large problems, if they can be done at all, can take hours. As in many other fields, we run into the question as to what is the most economical way to obtain raw processi...

– Metric: response time. – Automatic, no user program modifications required. – Run-time feedback to the kernel. • Multiprocessing to improve response times. • Slow down processor to save energy when response times are fast enough. Research contributions • A metric (TLP) and a portable methodology for quantifying the amount of concurrency in a multiprocessor system. • An automatic technique for...

Developing distributed applications that utilize multiprocessing and network services is a promising technique for increasing system performance, scalability, and cost effectiveness. However, designing and implementing efficient, robust, and extensible multi-threaded client/server applications is a complex and challenging task. The Service Configurator (SVC-CON) framework described in this pape...