The CRAY T3E System

Lachesis: A Job Scheduler for the Cray T3E

This paper presents the design and implementation of Lach-esis, a job scheduler for the Cray T3E. Lachesis was developed at the San Diego Supercomputer Center (SDSC) in an attempt to correct some problems with the scheduling system Cray provides with the T3E.

PScheD: Political Scheduling on the CRAY T3E

Large parallel processing environments present serious administrative challenges if high utilization of the available resources is a goal. In many cases there is also the need to support critical or time-dependent applications at the same time as development and routine production work is going on. This paper describes the components that help realize the Political Scheduling goals of the CRAY ...

Empirical Evaluation of Global Memory Support on the CRAY-T3D and CRAY-T3E

Network Simulation on Cray-T3E using MPI

We propose a novel approach for parallel discrete-event network simulation on packet-switched, point-to-point networks. Our algorithm resolves packet connicts through priority sorting of appropriate integer connict functions. We implement our method on CM-5, Cray-T3D, and Cray-T3E systems using C and MPI, and perform critical optimizations aimed at reducing sorting overhead, minimizing inter-pr...

Clustering T3Es for Metacomputing Applications

This paper presents an environment which enables the coupling of different supercomputers to overcome the limitations of a single computing system. This requires an extension to MPI, since MPI provides no interoperability-features. A library called PACX-MPI is presented which provides the user with a distributed MPI environment with most of the important functionality of standard MPI. First res...