The Experts below are selected from a list of 132 Experts worldwide ranked by ideXlab platform
P.j. Gil-vicente - One of the best experts on this subject based on the ideXlab platform.
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Experimental validation of a fault tolerant Microcomputer System against intermittent faults
2010 IEEE IFIP International Conference on Dependable Systems & Networks (DSN), 2010Co-Authors: J. Gracia-moran, D. Gil-tomas, L.j. Saiz-adalid, J.c. Baraza, P.j. Gil-vicenteAbstract:As technologies shrink, new kinds of faults arise. Intermittent faults are part of these new faults. They are expected to be an increasing challenge in modern VLSI circuits. Up to now, transient and permanent faults used to be injected for the experimental validation of fault tolerance mechanisms. The main objective of this work is to improve the dependability assessment by injecting also intermittent faults. Furthermore, we have compared intermittent faults impact with the influence of transient and permanent faults. To carry out this study, we have injected bursts of intermittent faults in a fault-tolerant Microcomputer System with some well known fault detection and recovery mechanisms. The methodology used lies in VHDL-Based Fault Injection technique, which allows a Systematic and exhaustive analysis. Results show that intermittent faults have a notable impact on recovery mechanisms. They must be taken into account besides permanent and transient faults to implement an accurate dependability assessment.
J.c. Baraza - One of the best experts on this subject based on the ideXlab platform.
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Experimental validation of a fault tolerant Microcomputer System against intermittent faults
2010 IEEE IFIP International Conference on Dependable Systems & Networks (DSN), 2010Co-Authors: J. Gracia-moran, D. Gil-tomas, L.j. Saiz-adalid, J.c. Baraza, P.j. Gil-vicenteAbstract:As technologies shrink, new kinds of faults arise. Intermittent faults are part of these new faults. They are expected to be an increasing challenge in modern VLSI circuits. Up to now, transient and permanent faults used to be injected for the experimental validation of fault tolerance mechanisms. The main objective of this work is to improve the dependability assessment by injecting also intermittent faults. Furthermore, we have compared intermittent faults impact with the influence of transient and permanent faults. To carry out this study, we have injected bursts of intermittent faults in a fault-tolerant Microcomputer System with some well known fault detection and recovery mechanisms. The methodology used lies in VHDL-Based Fault Injection technique, which allows a Systematic and exhaustive analysis. Results show that intermittent faults have a notable impact on recovery mechanisms. They must be taken into account besides permanent and transient faults to implement an accurate dependability assessment.
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fault injection into vhdl models experimental validation of a fault tolerant Microcomputer System
European Dependable Computing Conference, 1999Co-Authors: Rafael J Martinez, J V Busquets, J.c. BarazaAbstract:This work presents a campaign of fault injection to validate the dependability of a fault tolerant Microcomputer System. The System is duplex with cold stand-by sparing, parity detection and a watchdog timer. The faults have been injected on a chip-level VHDL model, using an injection tool designed with this purpose. We have carried out a set of injection experiments (with 3000 injections each), injecting transient and permanent faults of types stuck-at, open-line and indetermination on both the signals and variables of the System, running a workload. We have analysed the pathology of the propagated errors, measured their latency, and calculated both detection and recovery coverage. We have also studied the influence with the fault duration and fault distribution. For instance, System detection coverage (including noneffective faults) is 98% and the System recovery coverage is 95% for short transient faults (0.1 clock cycles).
J. Gracia-moran - One of the best experts on this subject based on the ideXlab platform.
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Experimental validation of a fault tolerant Microcomputer System against intermittent faults
2010 IEEE IFIP International Conference on Dependable Systems & Networks (DSN), 2010Co-Authors: J. Gracia-moran, D. Gil-tomas, L.j. Saiz-adalid, J.c. Baraza, P.j. Gil-vicenteAbstract:As technologies shrink, new kinds of faults arise. Intermittent faults are part of these new faults. They are expected to be an increasing challenge in modern VLSI circuits. Up to now, transient and permanent faults used to be injected for the experimental validation of fault tolerance mechanisms. The main objective of this work is to improve the dependability assessment by injecting also intermittent faults. Furthermore, we have compared intermittent faults impact with the influence of transient and permanent faults. To carry out this study, we have injected bursts of intermittent faults in a fault-tolerant Microcomputer System with some well known fault detection and recovery mechanisms. The methodology used lies in VHDL-Based Fault Injection technique, which allows a Systematic and exhaustive analysis. Results show that intermittent faults have a notable impact on recovery mechanisms. They must be taken into account besides permanent and transient faults to implement an accurate dependability assessment.
D. Gil-tomas - One of the best experts on this subject based on the ideXlab platform.
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Experimental validation of a fault tolerant Microcomputer System against intermittent faults
2010 IEEE IFIP International Conference on Dependable Systems & Networks (DSN), 2010Co-Authors: J. Gracia-moran, D. Gil-tomas, L.j. Saiz-adalid, J.c. Baraza, P.j. Gil-vicenteAbstract:As technologies shrink, new kinds of faults arise. Intermittent faults are part of these new faults. They are expected to be an increasing challenge in modern VLSI circuits. Up to now, transient and permanent faults used to be injected for the experimental validation of fault tolerance mechanisms. The main objective of this work is to improve the dependability assessment by injecting also intermittent faults. Furthermore, we have compared intermittent faults impact with the influence of transient and permanent faults. To carry out this study, we have injected bursts of intermittent faults in a fault-tolerant Microcomputer System with some well known fault detection and recovery mechanisms. The methodology used lies in VHDL-Based Fault Injection technique, which allows a Systematic and exhaustive analysis. Results show that intermittent faults have a notable impact on recovery mechanisms. They must be taken into account besides permanent and transient faults to implement an accurate dependability assessment.
L.j. Saiz-adalid - One of the best experts on this subject based on the ideXlab platform.
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Experimental validation of a fault tolerant Microcomputer System against intermittent faults
2010 IEEE IFIP International Conference on Dependable Systems & Networks (DSN), 2010Co-Authors: J. Gracia-moran, D. Gil-tomas, L.j. Saiz-adalid, J.c. Baraza, P.j. Gil-vicenteAbstract:As technologies shrink, new kinds of faults arise. Intermittent faults are part of these new faults. They are expected to be an increasing challenge in modern VLSI circuits. Up to now, transient and permanent faults used to be injected for the experimental validation of fault tolerance mechanisms. The main objective of this work is to improve the dependability assessment by injecting also intermittent faults. Furthermore, we have compared intermittent faults impact with the influence of transient and permanent faults. To carry out this study, we have injected bursts of intermittent faults in a fault-tolerant Microcomputer System with some well known fault detection and recovery mechanisms. The methodology used lies in VHDL-Based Fault Injection technique, which allows a Systematic and exhaustive analysis. Results show that intermittent faults have a notable impact on recovery mechanisms. They must be taken into account besides permanent and transient faults to implement an accurate dependability assessment.