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Browse Prior Art Database

THE EDIT PROCESSOR COMPONENT OF IPIN

IP.com Disclosure Number: IPCOM000128148D
Original Publication Date: 1978-Dec-31
Included in the Prior Art Database: 2005-Sep-15
Document File: 5 page(s) / 24K

Publishing Venue

Software Patent Institute

Related People

Robert J. Fornaro: AUTHOR [+4]

Abstract

The Edit Processor component of IPIN interfaces interactive graphics Edit Stations with the Postprocessor System. It also has job-control and computational functions. After an extensive analysis, includtng the use of a SIMSCRIPT simulation model, a dual-processor configuration was selected for the Edit Processor. One CPU uses message-switching software as defined in the Post-processor System. The other CPU operates under a conventional operating system. The two processors are connected by a communica-tions link and share the use of two 42M word disks.

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THIS DOCUMENT IS AN APPROXIMATE REPRESENTATION OF THE ORIGINAL.

THE EDIT PROCESSOR COMPONENT OF IPIN

Robert J. Fornaro Lionel E. Deimel, Jr.

TR 78-05

This work supported by Rome Air Development Center under contract no. F30602-75-C-0118.

ABSTRACT

The Edit Processor component of IPIN interfaces interactive graphics Edit Stations with the Postprocessor System. It also has job-control and computational functions. After an extensive analysis, includtng the use of a SIMSCRIPT simulation model, a dual-processor configuration was selected for the Edit Processor. One CPU uses message-switching software as defined in the Post-processor System. The other CPU operates under a conventional operating system. The two processors are connected by a communica-tions link and share the use of two 42M word disks.

INTRODUCTION

Tile function of the Edit System of lPiti Is to review and modify data collected by the Pooled Analytical Stereoplotter System (PASS) and tile Automat I c Collection Equipment System (ACE). Interpolated matrix data Is also reviewed via the Edit System on a model basis, Finally, the Edit System Is employed to direct the merging of matrix data from different models, In order to produce consistent digital terrain information for Incorporation Into the D14A database.

The major editing functions of IPIN are carried out at Interactive graphics terminals known as Edit Stations. Two such terminals are supported by each of up to six Edit Minicomputers. Each Edit Minicomputer Is a 16-bit-word machine With 64K words of primary memory and disk drives of approximatly 1014 word capacity. The design and Implementation of this portion of the Edit System has been the responsibility of the Defense Mapping Agency Aerospace Center (OMAAC) and is described In a companion paper by Elphingstone and Woodford (1).

The Edit Stations are tied to tile Postprocessor Systeal through the Edit Processor. One task of the Edit Processor Is to provide an Interface between the Interactive graphics editing facilities and the data collection subsystems via the File Manager component of the Postprocessor System. (Figure I shows the position of the Edit Processor In IPIN.) The Edit Processor Is Intended to manage data transfers between the Edit System and tile rest of the network, provide additional computational resources for the Edit Stations, and drive a large flatbed plotter, a resource shared by all the Edit Stations.

North Carolina State University (lJCSU) has studied tile requirements Imposed on the Edit Processor to estimate performance parameters (memory requirements, CPU power, throughput) and to provide a software specification. In this study, NCSU has worked closely with Rome Air Development Center, ONAAC, and fiendix Research Labs. An Important objective of

North Carolina State University Page 1 Dec 31, 1978

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THE EDIT PROCESSOR COMPONENT OF IPIN

the project was to keep the design compatable Witt, the message-switching architecture established f...