An inter-processor communication interface for data-flow centric heterogeneous embedded multiprocessor systems

Cassano, Luca; Cozzi, Dario; Jungewelter, Dirk; Korf, Sebastian; Hagemeyer, Jens; Porrmann, Mario; Bernardeschi, Cinzia

doi:10.1109/dtis.2014.6850669

Cited by 3 publications

(2 citation statements)

References 13 publications

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“…그림 2는 제어프로세서 사이에 메시지 혹은 명령을 전달할 때 주로 사용하는 RPC (Remote Procedure Call), RPC-like 방 식의 데이터 전달 방법이다 (GIPM, General packet-type Intercontrol-Processor Messaging) [5][6][7][8] . [9] .…”

Section: 일반적 제어프로세서 메시징unclassified

Time-Deterministic Event Processing in Terabit Optical-Circuit-Packet Converged Switching Systems

Kim†¹,

Ryoo²,

Cho³

2016

Korean Journal of Optics and Photonics

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In connection-oriented data-transport services, data loss can occur when the service experiences a problem on its end-to-end path. To promptly resolve this problem, the data-switching systems providing the service should quickly modify their internal configurations distributed among different places in each system. This is performed through a sequence of problem (event) recognition, sharing, and handling procedures among multiple control processors in the system. This paper proposes a method for event sharing and messaging between control processors, to improve the time determinacy of event processing. This method simplifies runtime event sharing and minimizes the time variability caused by the event data, resulting in a decrease in the latency time in processing global events. The proposed method lessens the latency time of global event processing by about 40%, compared to general methods, for 738 internal path changes.

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Section: 일반적 제어프로세서 메시징unclassified

Time-Deterministic Event Processing in Terabit Optical-Circuit-Packet Converged Switching Systems

Kim†¹,

Ryoo²,

Cho³

2016

Korean Journal of Optics and Photonics

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“…Modern real-time embedded systems are demanding in terms of computing power and programmable performance; thus, the number of processors used in these applications is increasing [1][2][3]. System-on-Chip (SoC) designs have multiple processing elements (PEs) on the same die for the sake of meeting the exponential growth in the recent processing requirements of embedded system applications.…”

Section: Introductionmentioning

confidence: 99%

A Knowledge Base Technique for Detecting Multiple High-Speed Serial Interface Synchronization Errors in Multiprocessor-Based Real-Time Embedded Systems

et al. 2022

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The heterogeneity of the multiple processing elements (PEs) is a feature of real-time embedded systems. General-purpose processors and several embedded processors, as well as dedicated high-speed interfaces, are among these elements. Communication between the processors is among the most significant characteristics of developing such complex systems. Furthermore, synchronization is a common issue during interprocessor communication in embedded systems. Debugging and testing such systems is time-consuming, difficult, and laborious, with the majority of the complexities centered on debugging real-time interprocessor communication, such as synchronization in terms of timing and accuracy. While the hardware design features of heterogeneous multiprocessor real-time embedded systems have received a lot of attention, the design and development of software-based solutions still have the potential to be addressed. In particular, software-based testing becomes challenging due to interprocessor communication and the synchronization of real-time applications. A knowledge-based technique that aids in testing high-speed serial interfaces in multiprocessor-based real-time embedded systems is proposed that needs debugging in real time while an application is running. It is becoming much more important to test and validate these interfaces in real time as the demand for high data transmission rates increases. The presented work uses a technique to simulate, create and enhance the knowledge base used as correlation-based error detection that reduces the development time. The proposed technique helps in detecting synchronization-related errors that occur during communication among multiple high-speed serial interfaces. The presented work also lists a series of experiments to validate the effectiveness of the proposed technique. The results show that the presented techniques are effective for error identification in real-time embedded systems.

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Time-Efficient Event Processing Using Provisioning-to-Signaling Method in Data Transport Systems Requiring Multiple Processors

Kim¹,

Ryoo²,

Cho³

2017

ETRI J

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In connection‐oriented data transport services, data loss can occur when a service experiences a problem in its end‐to‐end path. To resolve the problem promptly, the data transport systems providing the service must quickly modify their internal configurations, which are distributed among different locations within each system. The configurations are modified through a series of problem (event) handling procedures, which are carried out by multiple control processors in the system. This paper proposes a provisioning‐to‐signaling method for inter‐control‐processor messaging to improve the time efficiency of event processing. This method simplifies the sharing of the runtime event, and minimizes the time variability caused by the amount of event data, which results in a decrease in the latency time and an increase in the time determinacy when processing global events. The proposed method was tested for an event that required 4,000 internal path changes, and was found to lessen the latency time of global event processing by about 50% compared with the time required for general methods to do the same; in addition, it reduced the impact of the event data on the event processing time to about 30%.

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An inter-processor communication interface for data-flow centric heterogeneous embedded multiprocessor systems

Cited by 3 publications

References 13 publications

Time-Deterministic Event Processing in Terabit Optical-Circuit-Packet Converged Switching Systems

Time-Deterministic Event Processing in Terabit Optical-Circuit-Packet Converged Switching Systems

A Knowledge Base Technique for Detecting Multiple High-Speed Serial Interface Synchronization Errors in Multiprocessor-Based Real-Time Embedded Systems

Time-Efficient Event Processing Using Provisioning-to-Signaling Method in Data Transport Systems Requiring Multiple Processors

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