1,721,040 research outputs found
Systems Thinking for Media Navigation: a Support for E-Learning in Complex Systems and Vehicle Telematics
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Educational strategies and technical implementation: the experienceof Politecnico di Torino in remote tutoring
No full textDynamic rollback problem in concurrent event-driven fault simulation
No full textBoth simulation for design verification and fault simulation in conjunction with automatic test pattern generation (ATPG) would benefit from forward and backward shifting of the simulation time. Except in some particular cases, however this has so far been only allowed through explicit save/restore commands issued by the user. The paper presents a general technique that makes a "run for T" command possible, where T can be any positive or negative time value. A major feature is that the user can set she maximum allowable overhead. Its generality allows its implementation in simulators for design verification and fault simulators, for both synchronous and asynchronous circuits, with either zero-delay or accurate delay models
Adaptive technique for dynamic rollback in concurrent event-driven fault simulation
No full textBoth simulation for design verification and fault simulation in conjunction with automatic test pattern generation could take advantage of the possibility of moving the simulation time forward and backward. Up until now, rollback was allowed only by explicit backup/restore commands issued by the user. The paper presents a technique that makes possibles a "run for T" command, where T can be any time value, either positive or negative. It is based on an adaptive mechanism that automatically controls the parameters of an advanced network status recording system. A major feature is that the user may decide the maximum allowable overhead. Experiments show that the resulting rollback time is on the average very short, and therefore this technique can be efficiently used to improve sequential ATPG algorithms
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