Performance estimation of semirandom data transfer within direct hypercube interconnection network

Embedded platforms are projected to integrate hundreds of cores in the near future, and expanding the interconnection network remains a key challenge. We propose SNet, a new Scalable NETwork paradigm that extends the NoCs area to include a software/hardware dynamic routing mechanism. To design routing pathways among communicating processes, it uses a distributed, adaptive, non-supervised routing method based on the ACO algorithm (Ant Colony Optimization). A small footprint hardware unit called DMC speeds up data transfer (Direct Management of Communications). SNet has the benefit of being extremely versatile, allowing for the creation of a broad range of routing topologies to meet the needs of various applications. We provide the DMC module in this work and assess SNet performance by executing a large number of test cases.

Download Full-text

A STATIC EXECUTION MODEL FOR DATA PARALLELISM

Parallel Processing Letters ◽

10.1142/s0129626494000338 ◽

1994 ◽

Vol 04 (04) ◽

pp. 367-378 ◽

Cited By ~ 1

Author(s):

C. GERMAIN ◽

F. DELAPLACE ◽

R. CARLIER

Keyword(s):

Message Passing ◽

Data Transfer ◽

Interconnection Network ◽

A Priori ◽

Parallel Architectures ◽

Data Parallelism ◽

Abstract Machine ◽

Computing Power ◽

Propagation Delays ◽

Execution Model

The performance of parallel architectures are limited at least as much by data transfer ability as by computing power. The main limit concerns the transfers on the interconnection network. But it becomes apparent that a majority of these communications can be known at compile time. The static model intends to exploit this a priori knowledge in order to drastically reduce the overhead of message passing, the ultimate goal being to confine the oommunication delays to the hardware propagation delays. In the paper, we present an abstract machine which is the target of a static-oriented compilation. We show how to recognize and sequence the static communication patterns, and we discuss the application scope of the model.

Download Full-text

Comparison of a Ring On-Chip Network and a Code-Division Multiple-Access On-Chip Network

VLSI Design ◽

10.1155/2007/18372 ◽

2007 ◽

Vol 2007 ◽

pp. 1-14 ◽

Cited By ~ 3

Author(s):

Xin Wang ◽

Jari Nurmi

Keyword(s):

Code Division Multiple Access ◽

Multiple Access ◽

Data Transfer ◽

Performance Estimation ◽

Description Language ◽

Advantages And Disadvantages ◽

Globally Asynchronous Locally Synchronous ◽

Hardware Description ◽

On Chip ◽

Code Division Multiple

Two network-on-chip (NoC) designs are examined and compared in this paper. One design applies a bidirectional ring connection scheme, while the other design applies a code-division multiple-access (CDMA) connection scheme. Both of the designs apply globally asynchronous locally synchronous (GALS) scheme in order to deal with the issue of transferring data in a multiple-clock-domain environment of an on-chip system. The two NoC designs are compared with each other by their network structures, data transfer principles, network node structures, and their asynchronous designs. Both the synchronous and the asynchronous designs of the two on-chip networks are realized using a hardware-description language (HDL) in order to make the entire designs suit the commonly used synchronous design tools and flow. The performance estimation and comparison of the two NoC designs which are based on the HDL realizations are addressed. By comparing the two NoC designs, the advantages and disadvantages of applying direct connection and CDMA connection schemes in an on-chip communication network are discussed.

Download Full-text

Wearable IoT based Distributed Framework for Ubiquitous Computing

Journal of Ubiquitous Computing and Communication Technologies - December 2019 ◽

10.36548/jucct.2021.1.003 ◽

2021 ◽

Vol 3 (1) ◽

pp. 23-32

Author(s):

Suma V

Keyword(s):

Resource Allocation ◽

Response Time ◽

Ubiquitous Computing ◽

Data Transfer ◽

End Users ◽

Performance Estimation ◽

Distributed Framework ◽

Medical Sensors ◽

Resource Requirements ◽

And Performance

In Internet of Things (IoT) based systems, the multi-level user requirements are satisfied by the integration of communication technology with distributed homogeneous networks termed as the ubiquitous computing systems (UCS). The PCS demands openness in heterogeneity support, management levels and communication for distributed users. However, providing these features is still a major challenge. In wearable IoT (WIoT) based medical sensors based applications, the end users reliability of communication is enhanced using a scalable distributed computational framework introduced in this paper. The demand and sharing parameters forms the basis of analysis of resource allocation by means of recurrent learning in this framework. The rate of communication may be improved while reducing the time delay for the end users of WIoT based medical sensors with the help of UCS and estimated resource requirements. Other than data transfer, sharing and resource allocation, end-user mobility management may also be performed on the WIoT medical sensors using the proposed framework. Certain metrics are used for proving the consistency of the framework that are assessed with the help of experimental analysis and performance estimation. Parameters inclusive of storage utilization, bandwidth, request backlogs, requests handled, request failure and response time are estimated. Reduced response time, backlogs and request failure with improved storage utilization, bandwidth and requests handled are evident using the proposed framework when compared to the existing models.

Download Full-text

SPECTRA: A program for processing electron images of crystals

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100121065 ◽

1992 ◽

Vol 50 (1) ◽

pp. 132-133

Author(s):

M.F. Schmid ◽

R. Dargahi ◽

M. W. Tam

Keyword(s):

Lattice Distortion ◽

Data Transfer ◽

Reciprocal Lattice ◽

Data Entry ◽

Image Data ◽

Distortion Correction ◽

Specimen Preparation ◽

Electron Image ◽

Computer Controlled ◽

Program Modules

Electron crystallography is an emerging field for structure determination as evidenced by a number of membrane proteins that have been solved to near-atomic resolution. Advances in specimen preparation and in data acquisition with a 400kV microscope by computer controlled spot scanning mean that our ability to record electron image data will outstrip our capacity to analyze it. The computed fourier transform of these images must be processed in order to provide a direct measurement of amplitudes and phases needed for 3-D reconstruction.In anticipation of this processing bottleneck, we have written a program that incorporates a menu-and mouse-driven procedure for auto-indexing and refining the reciprocal lattice parameters in the computed transform from an image of a crystal. It is linked to subsequent steps of image processing by a system of data bases and spawned child processes; data transfer between different program modules no longer requires manual data entry. The progress of the reciprocal lattice refinement is monitored visually and quantitatively. If desired, the processing is carried through the lattice distortion correction (unbending) steps automatically.

Download Full-text

Information System for Post-marketing Drug Surveillance Scheme on Small Computers

Methods of Information in Medicine ◽

10.1055/s-0038-1635411 ◽

1982 ◽

Vol 21 (04) ◽

pp. 181-186 ◽

Cited By ~ 1

Author(s):

M. A. A. Moussa

Keyword(s):

Information System ◽

Data Base ◽

Data Transfer ◽

Data Entry ◽

Drug Reactions ◽

Adverse Drug Reaction Monitoring ◽

Desktop Computers ◽

Post Marketing ◽

The State Of Kuwait ◽

Disc Drive

A drug information system (DARIS) has been created for handling reports on suspected drug reactions. The system is suitable for being run on desktop computers with a minimum of hardware requirements: 187 K read/write memory, flexible or hard disc drive and a thermal printer. The data base (DRUG) uses the QUERY and IMAGE programming capabilities for data entry and search. The data base to statistics link program (DBSTAT) enables data transfer from the data base into a file for statistical analysis and signalling suspected adverse drug reactions.The operational, medical and statistical aspects of the general population voluntary adverse drug reaction monitoring programme—recently initiated in the State of Kuwait—are described.

Download Full-text

THE INCREASING OF DATA TRANSFER NOISE IMMUNITY IN DEPARTMENTAL COMMUNICATION SYSTEMS OF SHORT-WAVE RANGE

RADIO COMMUNICATION TECHNOLOGY ◽

10.33286/2075-8693-2018-36-7-19 ◽

2018 ◽

pp. 7-19

Author(s):

B. G. Shadrin ◽

◽

D. E. Zachateyskiy ◽

V. A. Dvoryanchikov Dvoryanchikov ◽

◽

...

Keyword(s):

Communication Systems ◽

Noise Immunity ◽

Data Transfer ◽

Short Wave ◽

Wave Range

Download Full-text

WS-Security on PRODML

ACMIT Proceedings ◽

10.33555/acmit.v1i1.16 ◽

2014 ◽

Vol 1 (1) ◽

pp. 9-34

Author(s):

Bobby Suryajaya

Keyword(s):

Web Services ◽

Digital Signature ◽

Data Transfer ◽

Web Services Security ◽

Soap Message ◽

Simulation Results ◽

End To End

SKK Migas plans to apply end-to-end security based on Web Services Security (WS-Security) for Sistem Operasi Terpadu (SOT). However, there are no prototype or simulation results that can support the plan that has already been communicated to many parties. This paper proposes an experiment that performs PRODML data transfer using WS-Security by altering the WSDL to include encryption and digital signature. The experiment utilizes SoapUI, and successfully loaded PRODML WSDL that had been altered with WSP-Policy based on X.509 to transfer a SOAP message.

Download Full-text