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RepComp - Replicated Components for Improved Performance or Reliability in Multicore Systems

Technical Note:

Multi-core processors have become widely available in the last couple of years. Although these processors are becoming increasingly powerful, with the integration of an increasing number of cores, it also makes it harder for applications to exploit this increasing power. Unlike before, that any application would automatically benefit from the increase of clock speed, with multicore CPUs, programs must include multiple concurrent threads of activity to take benefit from the multiple cores available. In this project we intend to explore the idea of diverse replication of software program components to achieve two goals. First, we expect to be able to improve the overall performance of an application by relying on the result obtained from the fastest replica in each operation (assuming that for different operations of a software component, the fastest component is not always the same). Second, we expect to be able to provide fault-tolerance to buggy implementations by using Btzantine fault-tolerance replication techniques.


{ Project Info }

Coordinated by: CITI

Project Type: PN ( National basic research or R&D projects )

Funding Entity: FCT / MCTES

Total Funding Amount: 90845 Keuro

CITI Funding Amount: 52783 Keuro


Start Date: 2010-01-01 / Efective Start Date: 0000-00-00

End Date: 2012-12-31 / Efective End Date: 0000-00-00




{ CITI Participations }


{ Partnerships }
  • INESC Id (Portugal)
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