Clock Event Suppression Algorithm of VELVET and Its Application to S-820 Development
نویسندگان
چکیده
An advanced clock event suppression algorithm for high-speed logic simulation is described. A new signal value "Cn" and a "current clock (CC)", which indicates the current status of clock signals, has been introduced to realize this algorithm. This algorithm suppresses about 60% of the total events, and eliminates 40% of CPU time. No overhead is needed to incorporate this algorithm using hardware support of VELVET (vectorized processing system for logic verification). Hitachi's latest supercomputer S-820 has been developed using VELVET. The development period has been shortened to 3/4 that of the S-810,
منابع مشابه
Low Settling Time All Digital DLL For VHF Application
Settling time is one of the most important parameter in design of DLLs. In this paper we propose a new high speed with low settling time Delay Locked Loop (DLL) in which a digital signal processor (DSP) is used instead of using phase-frequency detector, charge pump and loop filter in conventional DLL. To have better settling time, PRP conjugate gradient algorithm is used to optimize delay of ea...
متن کاملAlgorithm for Vectorizing Logic Simulation and Evaluation of "VELVET" Performance
A very large-scale logic simulation engine "VELVET" has been developed VELVET is a vectorized event-driven simulator which can handle simultaneously both gate-level logic and Register-Transfer Level structure. VELVET can process simulation jobs two orders of magnitude faster than a conventional gate-level simulator. This paper describes how to realize such high performance, an algoritha for vec...
متن کاملApplication of Artificial Neural Network and Genetic Algorithm for Predicting three Important Parameters in Bakery Industries
Farinograph is the most frequently used equipment for empirical rheological measurements of dough. It’suseful to illustrate quality of flour, behavior of dough during mechanical handling and texturalcharacteristics of finished products. The percentage of water absorption and the development time of doughare the most important parameters of farinography for bakery industries during production. H...
متن کاملنقش صوفیه در گسترش آیین‌های نقالی و روضه‌خوانی
The present study attempts to investigate the role of Sufism in development of story-telling, naqqāli (narrating of important old Iranian stories) and Rawzahkhāni (telling story of mourning for Imams) arranged in three sections. The first part of the article is intended to inspect story-telling as a social practice of Sufism. It also expresses the reasons behind Safavid Scholars’ opposition wit...
متن کاملFixed-point FPGA Implementation of a Kalman Filter for Range and Velocity Estimation of Moving Targets
Tracking filters are extensively used within object tracking systems in order to provide consecutive smooth estimations of position and velocity of the object with minimum error. Namely, Kalman filter and its numerous variants are widely known as simple yet effective linear tracking filters in many diverse applications. In this paper, an effective method is proposed for designing and implementa...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1988