Mathematical simulation of self organizing chaotic processes in networks with speed independent processes by means of the asynchronous method of chaotic relaxations with delay using the Monte-Carlo method is considere...
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A Network of Workstations (NOW) has become an important distributed platform for large-scale scientific computations. A practical NOW system is heterogeneous and nondedicated, where computing power varies among the wo...
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A Network of Workstations (NOW) has become an important distributed platform for large-scale scientific computations. A practical NOW system is heterogeneous and nondedicated, where computing power varies among the workstations and multiple jobs may interact with each other during execution. In this paper, we present the design and implementation of a simulation system for a nondedicated heterogeneous NOW. This simulator provides many options to users to specify and quantify system architectures, network heterogeneity and time-sharing factors, such as speeds of different processors, memory organizations, network topology, communication structures, and workload distributions. The simulator also support execution of message-passing parallel programs written in C and the PVM library. The software structure of the simulator is well-modularized and highly extensible, which makes it easy to integrate other existing processor, memory and network simulators.
Incremental, parallel development of distributed real-time systems is difficult. Architectural techniques and software tools developed at the Jet Propulsion Laboratory's (JPL's) Flight System Testbed (FST) mak...
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This paper presents a distributed hardware/software cosimulation environment for heterogeneous systems prototyping applied to an industrial application. The environment provides following features: distributed Hw/Sw c...
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This paper presents a distributed hardware/software cosimulation environment for heterogeneous systems prototyping applied to an industrial application. The environment provides following features: distributed Hw/Sw cosimulation, automatic Hw/Sw interface generation, Hw elements can be described at different levels of abstraction and generic/specific Sw debuggers can be used. Starting from a brief description of the interface of the interconnected modules the tool automatically produces the link between Hw and Sw parts. In addition, the environment is very easy to use, even for complex systems that may include several Sw (C) modules and several Hw (VHDL) modules running in parallel. Applied to a large industrial multi-processor system, this method appeared reliable and efficient, providing important benefits in hardware-software codesign: better design environment and reduced time to validate.
In currently-used paradigms for system development, knowledge about the objects in the system's environment is used to derive algorithms that relate events in the environment to actions. This results in implicit r...
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The vortex method in the simulation of 2D incompressible flows with complex interacting circulations is very attractive if compared with other nowadays widespread methods. However, the vortex method is computationally...
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Three parallel discrete-event simulators-synchronous, conservative and optimistic-implemented on an Intel Paragon multicomputer are comparatively evaluated. parallelism is achieved by model decomposition, distributing...
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We present a parallel implementation of the Car-Parrinello method (1985) for first principles molecular dynamics simulations, in the parallel Virtual Machine (PVM, version 3.3.4) environment on the CRAY-T3D computer. ...
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Presents a platform for developing and evaluating control systems for emerging multimedia networks. The platform allows us to closely approximate the functional and dynamic behavior of network control systems. By prov...
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