Amaranth Summary Information



The Amaranth project will provide multi-dimensional, adaptive, assured Quality of Service (QoS) for heterogeneous distributed computing systems. In particular, Amaranth will provide probabilistic guarantees of service encompassing real-time deadlines, dependability, cryptographic security, and application-specific performance. Amaranth will incorporate adaptive, distributed optimization techniques to maximize system performance even in degraded operating modes. User-specific tradeoffs of service commitment duration, commitment firmness, and service dimensions will provide appropriate service to all users even in a resource-limited system. A specific goal is to provide an order of magnitude improvement in system efficiency over static resource allocation, while assuring a comparable QoS.


Amaranth will combine elements of theory, measurement, negotiation, resource management, and system-level prototyping. Four QoS dimensions (real-time deadlines, dependability, cryptographic security, and application-specific performance) will be related to system resources to enable significant ranges of resource/performance tradeoffs. Visualization and performance modeling tools will support viewing and changing QoS requests for the application, and tuning system QoS negotiation policies for efficiency.

System performance will be dynamically adjusted under varying workloads and resource levels. This will be achieved through the development of theoretical models of end-to-end QoS requirements and negotiation, as well as via the creation of performance monitoring capabilities and measurement tools. In particular, our work will have the following innovations in the underlying areas:

FY 1998 Plan:

Amaranth is conducted by the Institute for Complex Engineered Systems (ICES) at Carnegie Mellon University.
Amaranth is sponsored by
DARPA ITO, Quorum program, under contract [number TBD].
The contents of this web site are the product of Amaranth researchers, and are not necessarily endorsed by DARPA.
Web site by Jeff Hansen. Comments to:
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Last updated: May 13, 1998.