Second International Workshop on Real-Time Computing Systems and Applications (RTCSA'95)
Efficient NMRCD scheme for fault tolerance in responsive systems
Tokyo, Japan
October 25-October 27
ISBN: 0-8186-7106-8
C.P. Fuhrman, Dept. of Comput. Sci., Swiss Federal Inst. of Technol., Lausanne, Switzerland
S. Chutani, Dept. of Comput. Sci., Swiss Federal Inst. of Technol., Lausanne, Switzerland
H.J. Nussbaumer, Dept. of Comput. Sci., Swiss Federal Inst. of Technol., Lausanne, Switzerland
A variant of N-Modular Redundancy (NMR) allows an NMR system to have up to twice the throughput while keeping the same reliability model. Each task is executed by a majority of processors. The tasks are diagnosed (by comparing their results) rather than the processors (by a separate diagnostic process). This scheme does not increase the complexity of the circuitry involved as diagnosis does not have to be adaptive. Intermittent and transient, as well as permanent faults are tolerated.
Index Terms:
real-time systems; fault tolerant computing; reliability; redundancy; fault tolerance; responsive systems; NMRCD scheme; N-Modular Redundancy; reliability model
Citation:
C.P. Fuhrman, S. Chutani, H.J. Nussbaumer, "Efficient NMRCD scheme for fault tolerance in responsive systems," rtcsa, pp.203, Second International Workshop on Real-Time Computing Systems and Applications (RTCSA'95), 1995