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Filters: Creator: "Fujimoto, Richard M." Collection: "ir_uspace"
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CreatorTitleDescriptionSubjectDate
1 Fujimoto, Richard M.A shared memory algorithm and proof for the alternative construct in CSPCommunicating Sequential Processes (CSP) is a paradigm for communication and synchronization among distributed processes. The alternative construct is a key feature of CSP that allows nondeterministic selection of one among several possible communicants. Previous algorithms for this construct assume...Shared memory algorithm; Communicating Sequential Processes; CSP1987
2 Fujimoto, Richard M.; Gopalakrishnan, GaneshDesign and evaluation of the rollback chip: special purpose hardware for time warpThe Time Warp mechanism offers an elegant approach to attacking difficult clock synchronization problems that arise in applications such as parallel discrete event simulation. However, because Time Warp relies on a lookahead and rollback mechanism to achieve widespread exploitation of parallelism, t...Rollback chip; Time Warp mechanism; Clock synchronization; Parallel discrete event simulation1988
3 Fujimoto, Richard M.Efficient instruction level simulation of computersA technique for creating efficient, yet highly accurate, instruction level simulation models of computers is described. In contrast to traditional approaches that use a software interpreter, this technique employs direct execution of application programs on the host computer. An assembly language pr...Simulation models1987
4 Fujimoto, Richard M.On synthesizing systolic arrays from recurrence equations with linear dependenciesWe present a technique for synthesizing systolic architectures from Recurrence Equations. A class of such equations (Recurrence Equations with Linear Dependencies) is defined and and the problem of mapping such equations onto a two dimensional architecture is studied. We show that such a mapping is ...Recurrence equations1986
5 Fujimoto, Richard M.Optimal performance of distributed simulation programsThis paper describes a technique to analyze the potential speedup of distributed simulation programs. A distributed simulation strategy is proposed which minimizes execution time through the use of an oracle to control the simulation. Because the strategy relies on an oracle, it cannot be used for ...Distributed simulation programs1987
6 Fujimoto, Richard M.Performance measurements of distributed simulation strategiesA multiprocessor-based, distributed simulation testbed is described that facilitates controlled experimentation with distributed simulation algorithms. The performance of simulation strategies using deadlock avoidance and deadlock detection and recovery techniques are examined using various syntheti...Performance; Distributed simulation; Discrete simulation; Event-oriented; Queueing models1987
7 Fujimoto, Richard M.The roll back chip: hardware support for distributed simulation using time warpDistributed simulation offers an attractive means of meeting the high computational demands of discrete event simulation programs. The Time Warp mechanism has been proposed to ensure correct sequencing of events in distributed simulation programs without blocking processes unnecessarily. However, th...Roll back chip; Distributed simulation; Discrete event; Simulation programs; Time Warp mechanism1987
8 Fujimoto, Richard M.Systolic array synthesis by static analysis of program dependenciesWe present a technique for mapping recurrence equations to systolic arrays. While this problem has been studied in fairly great detail, the recurrence equations that are analysed here are a generalization of those studied previously. In a n earlier paper (14] we have showed how systolic arrays can b...Systolic array synthesis; static analysis; program dependencies; recurrence equations1986
9 Fujimoto, Richard M.Time warp on a shared memory multiprocessorA variation of the Time Warp parallel discrete event simulation mechanism is presented that is optimized for execution on a shared memory multiprocessor. In particular, the direct cancellation mechanism is proposed that eliminates the need for anti-messages and provides an efficient mechanism for ca...1988
10 Fujimoto, Richard M.The virtual time machineExisting multiprocessors and multicomputers require the programmer or compiler to perform data dependence analysis at compile time. We propose a parallel computer that performs this task at runtime. In particular, the Virtual Time Machine (VTM) detects violations of data dependence constraints as th...1988
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