Sökning: "concurrent error detection"

Visar resultat 1 - 5 av 11 avhandlingar innehållade orden concurrent error detection.

1. 1. On Concurrent Error Detection and Error Propagation

   Författare :Joakim Ohlsson; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; error models; control flow monitoring; simulation experiments; concurrent error detection; permanent faults; watchdog processors; fault injection; transient faults;

   Sammanfattning : This thesis addresses three important steps in the selection of error detection mechanisms for microprocessors: (i) the design and evaluation of error detection mechanisms, (ii) the study of microprocessor error behavior and propagation and (iii) the design and use of error models. The first part of the thesis evaluates four error detection methods with respect to para- meters such as error detection coverage and performance loss, while the second and third parts focus on determining the error patterns most likely to occur in a computer system when different types of faults are present and how to incorporate those error patterns into error models. LÄS MER

3. 2. Fault Injection for Studying Error Behavior and Validation of Error Detecting Mechanisms

   Författare :Marcus Rimén; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; concurrent error detection; functional error model; control flow error; error detection coverage; permanent faults; data error; error detection latency; simulation-based fault injection; transient faults; physical fault injection; dependability evaluation;

   Sammanfattning : This thesis deals with the design and validation of low-cost error detecting mechanisms that can be used to implement self-checking computers. The research objectives of the thesis are three-fold: (i) to investigate and develop a simulation-based fault injection technique that can be used on a wide range of VHDL simulation models, (ii) to investigate error propagation mechanisms in microprocessors in order to understand how to design low-cost error detecting mechanisms and (iii) to design and validate error detecting mechanisms. LÄS MER

4. 3. Software-implemented error detection and recovery for control applications

   Författare :Jonny Vinter; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; fault injection; dependable software; fault tolerance; control applications; concurrent error detection; error recovery techniques; embedded systems;

   Sammanfattning : .... LÄS MER

5. 4. Hardware and Software Mechanisms for Control Flow Checking

   Författare :Ghassem Miremadi; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; fault tolerance; error detection latency; signature monitoring; watchdog processor; dependability evaluation; transient faults; physical fault injection; concurrent error detection; control flow checking; error detection coverage;

   Sammanfattning : The improvement of dependability in computing systems requires the evaluation of fault tolerance mechanisms such as error detection, error recovery and reconfiguration. Central to this thesis is an experimental evaluation of several hardware and/or software implemented mechanisms for the concurrent detection of control flow errors. LÄS MER

7. 5. On the design and validation of dependable real-time systems

   Författare :Joakim Aidemark; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; error recovery; analytical coverage estimation; fault injection; real-time kernels; time redundancy; concurrent error detection; node-level fault tolerance;

   Sammanfattning : .... LÄS MER