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Microarchitecture optimization for timing and layout
In recent years the drive to produce more complex integrated circuits while spending less design time has driven the demand for design automation tools. The search for design automation methods has resulted in the design of numerous behavioral synthesis and logic synthesis tools. This report describes a system that fills the gap between traditional behavioral synthesis and logic synthesis tools. Techniques are introduced for improving the microarchitecture structure and using feedback from lower-level optimization tools to guide design optimizations while attempting to meet user specified area and time constraints. These techniques include the capability for mixing layout styles such as custom layout for random-logic components and bit-slicing for regularly structured components. In this manner the entire design, control logic and datapath, can be optimized at the same time. Further, this paper presents a new methodology for microarchitecture-level optimization that greatly reduces the amount of technology-specific knowledge necessary to perform the optimizations
Photonics design tool for advanced CMOS nodes
Recently, the authors have demonstrated large-scale integrated systems with
several million transistors and hundreds of photonic elements. Yielding such
large-scale integrated systems requires a design-for-manufacture rigour that is
embodied in the 10 000 to 50 000 design rules that these designs must comply
within advanced complementary metal-oxide semiconductor manufacturing. Here,
the authors present a photonic design automation tool which allows automatic
generation of layouts without design-rule violations. This tool is written in
SKILL, the native language of the mainstream electric design automation
software, Cadence. This allows seamless integration of photonic and electronic
design in a single environment. The tool leverages intuitive photonic layer
definitions, allowing the designer to focus on the physical properties rather
than on technology-dependent details. For the first time the authors present an
algorithm for removal of design-rule violations from photonic layouts based on
Manhattan discretisation, Boolean and sizing operations. This algorithm is not
limited to the implementation in SKILL, and can in principle be implemented in
any scripting language. Connectivity is achieved with software-defined
waveguide ports and low-level procedures that enable auto-routing of waveguide
connections.Comment: 5 pages, 10 figure
Design Automation and Design Space Exploration for Quantum Computers
A major hurdle to the deployment of quantum linear systems algorithms and
recent quantum simulation algorithms lies in the difficulty to find inexpensive
reversible circuits for arithmetic using existing hand coded methods. Motivated
by recent advances in reversible logic synthesis, we synthesize arithmetic
circuits using classical design automation flows and tools. The combination of
classical and reversible logic synthesis enables the automatic design of large
components in reversible logic starting from well-known hardware description
languages such as Verilog. As a prototype example for our approach we
automatically generate high quality networks for the reciprocal , which is
necessary for quantum linear systems algorithms.Comment: 6 pages, 1 figure, in 2017 Design, Automation & Test in Europe
Conference & Exhibition, DATE 2017, Lausanne, Switzerland, March 27-31, 201
Distribution automation applications of fiber optics
Motivations for interest and research in distribution automation are discussed. The communication requirements of distribution automation are examined and shown to exceed the capabilities of power line carrier, radio, and telephone systems. A fiber optic based communication system is described that is co-located with the distribution system and that could satisfy the data rate and reliability requirements. A cost comparison shows that it could be constructed at a cost that is similar to that of a power line carrier system. The requirements for fiber optic sensors for distribution automation are discussed. The design of a data link suitable for optically-powered electronic sensing is presented. Empirical results are given. A modeling technique that was used to understand the reflections of guided light from a variety of surfaces is described. An optical position-indicator design is discussed. Systems aspects of distribution automation are discussed, in particular, the lack of interface, communications, and data standards. The economics of distribution automation are examined
Flight deck automation: Promises and realities
Issues of flight deck automation are multifaceted and complex. The rapid introduction of advanced computer-based technology onto the flight deck of transport category aircraft has had considerable impact both on aircraft operations and on the flight crew. As part of NASA's responsibility to facilitate an active exchange of ideas and information among members of the aviation community, a NASA/FAA/Industry workshop devoted to flight deck automation, organized by the Aerospace Human Factors Research Division of NASA Ames Research Center. Participants were invited from industry and from government organizations responsible for design, certification, operation, and accident investigation of transport category, automated aircraft. The goal of the workshop was to clarify the implications of automation, both positive and negative. Workshop panels and working groups identified issues regarding the design, training, and procedural aspects of flight deck automation, as well as the crew's ability to interact and perform effectively with the new technology. The proceedings include the invited papers and the panel and working group reports, as well as the summary and conclusions of the conference
TC-2 Design Automation Committee—On the Future of RF and Microwave Design Automation—2022
TC-2 Design Automation Committee (formerly MTT-1 CAD), established in 1968, focuses on advances in all aspects of methods, software, and technologies for the modeling, simulation, and design optimization of high-frequency circuits and systems. From radio frequency to terahertz, engineering innovation hinges on the availability of state-of-the-art modeling techniques and design automation methods capable to handle new mathematical representations and design methodologies, as well as novel manufacturing processes and materials. Here, we venture on the future of RF and microwave design automation within the next decade.ITESO, A.C
An approach to design knowledge capture for the space station
The design of NASA's space station has begun. During the design cycle, and after activation of the space station, the reoccurring need will exist to access not only designs, but also deeper knowledge about the designs, which is only hinted in the design definition. Areas benefiting from this knowledge include training, fault management, and onboard automation. NASA's Artificial Intelligence Office at Johnson Space Center and The MITRE Corporation have conceptualized an approach for capture and storage of design knowledge
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