Diagnosis of interconnect shorts in mesh NoCs

Herve, Marcos; Cota, Érika; Kastensmidt, Fernanda Lima; Lubaszewski, Marcelo

doi:10.1109/nocs.2009.5071475

Cited by 26 publications

(7 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…More recently we have developed a diagnosis scheme for the basic 2x2 NoC and for larger NoCs in a grid topology [10]. A torus topology, however, presents an intrinsic path redundancy because of the feedback wires that connect the border routers.…”

Section: Test and Diagnosis Methods For The Basic 2x2mentioning

confidence: 99%

“…The identification of the specific faulty channel is possible through the analysis of the erroneous flits in the TEDs [10].…”

Section: B Fault Location For the Basic 2x2 Nocmentioning

confidence: 99%

“…From the diagnosability analysis performed for all payload faults, one can observe three possibilities regarding the relationship between the error detection and the fault which caused it, as detailed in [10].…”

Section: B Fault Location For the Basic 2x2 Nocmentioning

confidence: 99%

See 2 more Smart Citations

Improving yield of torus nocs through fault-diagnosis-and-repair of interconnect faults

Concatto

Almeida

Kastensmidt

et al. 2009

2009 15th IEEE International on-Line Testing Symposium

Self Cite

View full text Add to dashboard Cite

We propose a fault tolerance method for torus NoCs capable of increase the yield with minimal performance overhead. The proposed approach consists in detecting and diagnosing interconnect faults using BIST structures and activating alternative paths for the faulty links. Experimental results show that alternative fault-free paths are found by the dynamic routing for 95% of the diagnosed faults (stuck-at and pairwise shorts within a single link or between any two links).

show abstract

Section: Test and Diagnosis Methods For The Basic 2x2mentioning

confidence: 99%

“…The identification of the specific faulty channel is possible through the analysis of the erroneous flits in the TEDs [10].…”

Section: B Fault Location For the Basic 2x2 Nocmentioning

confidence: 99%

See 1 more Smart Citation

Improving yield of torus nocs through fault-diagnosis-and-repair of interconnect faults

Concatto

Almeida

Kastensmidt

et al. 2009

2009 15th IEEE International on-Line Testing Symposium

Self Cite

View full text Add to dashboard Cite

show abstract

“…First, a probing mechanism detects whether boards and chips are actually present. Then, similar techniques as described in [19] and [20] are used to perform functional tests on the interconnect. Links that are found to be fault-free are marked as such in the platform model.…”

Section: B Platform Discovery and Fault Detectionmentioning

confidence: 99%

Adaptive resource allocation for streaming applications

Braak

Toersche

Kokkeler

et al. 2011

2011 International Conference on Embedded Computer Systems: Architectures, Modeling and Simulation

View full text Add to dashboard Cite

Streaming applications often have latency and throughput requirements due to timing critical signal processing, or the time critical interaction with their environment. Mapping such applications to a multi-core architecture is commonly done at design-time to be able to analyze the complex design-space. However, such design-flows cannot deal with a dynamic platform or a dynamic set of applications. Hardware faults and resources claimed by other applications may render the assumed available resources inaccessible. To avoid the assumptions posed on the state of the platform by a fixed resource allocation, applications should be designed with location transparency in mind. Applications must be analyzed at design-time to determine the required resource budget, independent of which specific resources will be allocated. Sufficient performance can be guaranteed when such applications are mapped onto an architecture in which each resource is arbitrated using a budget scheduler.Within the Cutting edge Reconfigurable ICs for Stream Processing (CRISP) project, a many-core platform is developed that adheres to these requirements. Using the configuration features of the platform, the system is able to control at run-time what resources are being used by the applications. This paper shows that run-time resource allocation can effectively adapt to the available set of resources, providing partial distribution transparency to the user. As an example, a GNSS receiver is mapped to the platform containing faulty hardware components. A few resources remain critical, but in most cases the faulty components can be circumvented, such that adequate resources can be allocated to the application at run-time.

show abstract

“…In [4] and [5], authors present a test method to detect shortcircuit faults between channels by using the NoC functional mode. A set of paths to test a NoC with mesh topology is proposed.…”

Section: Related Workmentioning

confidence: 99%

A broad strategy to detect crosstalk faults in network-on-chip interconnects

Botelho

Kastensmidt

Lubaszewski

et al. 2010

2010 18th IEEE/IFIP International Conference on VLSI and System-on-Chip

Self Cite

View full text Add to dashboard Cite

In this paper, we propose a method to detect crosstalk faults within and among channels of mesh NoCs, using a global test strategy that is based on a particular set of test paths and test packet. All test paths must be activated simultaneously without resource conflict. The test packet is built using Maximal Aggressor Fault (MAF) vectors. The test strategy is capable of detecting 100% of the considered faults. The test application time grows quadratically with the NoC increase, but can be drastically improved by means of two alternative approaches also proposed in the paper. Those local approaches are based on simultaneously testing multiple victims or NoC regions unlikely to aggress each other. The test time then grows linearly and shows a very modest derivative.

show abstract

Diagnosis of interconnect shorts in mesh NoCs

Cited by 26 publications

References 13 publications

Improving yield of torus nocs through fault-diagnosis-and-repair of interconnect faults

Improving yield of torus nocs through fault-diagnosis-and-repair of interconnect faults

Adaptive resource allocation for streaming applications

A broad strategy to detect crosstalk faults in network-on-chip interconnects

Contact Info

Product

Resources

About