Fault tolerant embedded systems design by multi-objective optimization

The design of fault tolerant systems is gaining importance in large domains of embedded applications where design constrains are as important as reliability. New software techniques, based on selective application of redundancy, have shown remarkable fault coverage with reduced costs and overheads. However, the large number of different solutions provided by these techniques, and the costly process to assess their reliability, make the design space exploration a very difficult and time-consuming task. This paper proposes the integration of a multi-objective optimization tool with a software hardening environment to perform an automatic design space exploration in the search for the best trade-offs between reliability, cost, and performance. The first tool is commanded by a genetic algorithm which can simultaneously fulfill many design goals thanks to the use of the NSGA-II multi-objective algorithm. The second is a compiler-based infrastructure that automatically produces selective protected (hardened) versions of the software and generates accurate overhead reports and fault coverage estimations. The advantages of our proposal are illustrated by means of a complex and detailed case study involving a typical embedded application, the AES (Advanced Encryption Standard).

Prepared for a Symposium on Country Development at the European Meeting on Cybernetics and Systems Research, Vienna, Austria, April 2012 (Untitled). ACES Working Papers, April 2012

In Kazakhstan doctoral students are not expected to make a contribution to knowledge, as is required at Western universities. Rather, their task is to become familiar with what is known and then make policy recommendations for Kazakhstan. For example, how can the human capital in Kazakhstan be improved? This is a very broad subject for a PhD dissertation. However, it does require a holistic perspective, and such dissertation topics may create an opportunity for systems scientists. When Russell Ackoff created the Social Systems Sciences PhD program at the Wharton School of the University of Pennsylvania, he had his students solve practical problems for business or government managers. That program graduated a large number of people who became consultants. A few became academics in several countries. The program created a philosophy and methods for holistic management. Large issues in developing countries may be a source of clients for systems scientists who want to further develop philosophy, theories and methods by working with large social systems.

Performance of historic stone building materials and systems : observations by architects, engineers and building conservators : excerpts from workshop discussions held on August 10, 1987, funded by the U.S. Environmental Protection Agency and the U.S. Department of the Interior, National Park Service, Cultural Resources Acid Rain Research Program.

"June 1988."

Report of Technical Group on Electrical Transmission and Systems.

At head of title FCST energy R&D goals study.

Emergency medical services (EMS). Coordination and systems improvement. Issue paper. Revised ed.

Mode of access: Internet.

Direct energy conversion and systems for nuclear auxiliary power (SNAP) : a literature search /

Mode of access: Internet.

Direct energy conversion and systems for nuclear auxiliary power (SNAP) : A literature search /

January 1963.

Alternative incandescent traffic signal lamps and systems for improved optical and energy efficiency. Final report.

Federal Highway Administration, Office of Safety and Traffic Operations Research and Development, Washington, D.C.

Army pictorial techniques, equipments, and systems : pictorial fundamentals.

Cover title.

The feasibility of methods and systems for reducing LNG tanker fire hazards /

"DOE/EV/04734-T1."

Units and systems of weights and measures : their origin, development, and present status /

Mode of access: Internet.

Pantologia : a new cabinet cyclopaedia, comprehending a complete series of essays, treatises, and systems, alphabetically arranged... /

Mode of access: Internet.

Circuits and machines in electrical engineering

v. 1. Circuits.--v. 2. Machines.

Pantologia. A new cyclopaedia, comprehending a complete series of essays, treatises, and systems, alphabetically arranged; with a general dictionary of arts, sciences and words ... illustrated with engravings, those on history being from original drawings by Edwards and others ...

Mode of access: Internet.