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Contents:
During the past decade, 3D-Network-on-Chips (3D-NoCs) have been showing their advantages against 2D-NoC systems. At the same time, concerns about their reliability have grown as well due to the different kinds of faults that these systems may encounter. Therefore, 3D-NoC must be fault-tolerant to any kind of permanent failure or run-time malfunction. To achieve this goal, a fault-detection scheme is necessary to discover the presence of fault before the propagation of the fault into the entire system and cause the its collapse.
Previously, 3D-Fault-Tolerant-OASIS (3D-FTO) has been designed. 3D-FTO is able to recover from a large number of faults that can occur at links, input-buffers, and crossbar. However in this system, a fault detection mechanism is absent and the diagnosis of faults rely on assuming the presence of faults at a certain period of time. This make the fault recovery less efficient and diminish the reliability of the system.
The main goal of this research is to design and implement a fault detction and correction scheme for 3D-Fault-Tolerant-OASIS (3D-FTO). The scheme is based on Error-Detection-Codes (EDC) and Error-Correction-Codes (ECC). It should detect the presence of any kind of errors or malfunction and make the necessary communications with the different modules of 3D-FTO to perform the quick recovery ensuring a graceful performance degradation as less as possible.
