Pegasus II

(Esprit LTR 21917)

Nemesis

The main product of Pegasus II is Nemesis that has its own set of web pages.

Pegasus project info

Introduction

Multimedia applications of the future will involve the distributed processing of multimedia information in systems ranging from large servers, through workstations all the way down to "set top boxes". The implementation of such applications will be greatly eased by the use of a common architecture providing application level quality of service, and, where possible, a common software platform even where the underlying hardware has diverse capabilities.

Pegasus II takes the results of the Pegasus project as a starting point on which to build a complete distributed multimedia platform, including toolkits, user interfaces, filing systems and the emulation of familiar software environments.

The work is based on the philosophy of the Pegasus project:

generic multimedia platforms, rather than single multimedia applications are the key elements of the "multimedia market" of the future,
communication and processing should be integrated,
resource management to provide application QoS guarantees is required.

Pegasus II is using the operating system kernel (Nemesis) and storage system built by the Pegasus project. The primary goal of this project is to add higher level functionality, whilst continuing with other areas of development, to increase the commercial viability of the Nemesis platform. Some important objectives are:

To extend the range of machines on which the Nemesis system will be available and the coverage of Nemesis-based services. Hence Nemesis now runs on the Pentium PC architecture, DEC AXP-3000 series workstations, RISC PC, DECchip EB164 and EB64 Alpha evaluation boards and the DEC Systems Research Center IT board.
To provide a standard environment (e.g., Posix) to enable the porting of current application software to Pegasus and a familiar programming environment for new (non time-critical) applications.
To define and develop toolkits to provide the common scheduling, synchronisation and manipulation functions for continuous media needed by applications,
To design and construct a user interface to enable intuitive interaction with the management of the network and workstation resources.

Work Packages

The project is divided into six main work packages:

Dissemination and industrial liaison
Operating system
File system
Tool kit
Networking
Project management

Deliverables

Accessible only from partner sites.

Deliverable 1.1.3: Report on the Third Workshop (2.6Mb compressed)
Deliverable 1.2.2: Standardisation Activities, Year 2 (235K, or 50K compressed)
Deliverable 1.3.1: Releasing Nemesis (105K, or 46K compressed)
Deliverable 1.3.3: The Nemesis Release (83K, or 35K compressed)

Deliverable 2.1.1: Linux Port to 21164 (103K, or 44K compressed)
Deliverable 2.1.2: Nemesis Pentium Port (334K, or 68K compressed)
Deliverable 2.1.3: Nemesis Pentium Demo (1536K, or 165K compressed)
Deliverable 2.1.4: Nemesis ARM Port Report (181K, or 74K compressed)
Deliverable 2.1.5: Nemesis AXP 21164 port (169K, or 70K compressed)
Deliverable 2.2.1: Debugging Tools (256K, or 51K compressed)
Deliverable 2.3.1: Virtual Address Management (632K, or 129K compressed)

Deliverable 3.1.1: Buffer Management for CM (309K, or 106K compressed)
Deliverable 3.2.2: NFS software (47K, or 19K compressed)
Deliverable 3.3.1: Archival system on Nemesis (1023K, or 184K compressed)
Deliverable 3.3.2: Remote management of archive (242K, or 82K compressed)

Deliverable 4.1.2: Initial Java VM Support (140K, or 58K compressed)
Deliverable 4.1.3: IIOP Implementation (219K, or 77K compressed)
Deliverable 4.1.5: Java QoS Extension (546K, or 121K compressed)
Deliverable 4.3.1: Resource Manager Software (5073K, or 506K compressed)
Deliverable 4.3.3: QoS user agent (220K, or 75K compressed)
Deliverable 4.5.2: Unix functionality (386K, or 92K compressed)
Deliverable 4.5.3: Xlib functionality (9586K, or 557K compressed)

Deliverable 5.1.1: CL Protocol Environment & Report (268K, or 90K compressed)
Deliverable 5.2.2: IP endsystem multicast on Nemesis (636K, or 123K compressed)
Deliverable 5.3.1: Diffserv endsystem architecture (425K, or 78K compressed)
Deliverable 5.4.1: IPv4 over ATM (412K, or 73K compressed)
Deliverable 5.5.1: ATM Signalling Software (134K, or 52K compressed)

Partners

Systems Research Group, Computer Laboratory, University of Cambridge.

Autogenerated on Mon Nov 15 16:44:19 GMT 1999