Abstract
The importance of adapting networks of workstations for use as parallel processing platforms is well established. However, current solutions do not always address important issues that exist in real networks. External factors like the sharing of resources, unpredictable behavior of the network, and failures, are present in multiuser networks and must be addressed. Calypso is a prototype software system for writing and executing parallel programs on non-dedicated platforms, based on COTS networked workstations, operating systems, and compilers. Among notable properties of the system are: (1) simple programming paradigm incorporating shared memory constructs and separating the programming and the execution parallelism, (2) transparent utilization of unreliable shared resources by providing dynamic load balancing and fault tolerance, and (3) effective performance for large classes of coarse-grained computations. We present the system and report our initial experiments and performance results in settings that closely resemble the dynamic behavior of a 'real' network. Under varying work-load conditions, resource availability and process failures, the efficiency of the test program we present ranged from 84% to 94% bench-marked against a sequential program.
Original language | English (US) |
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Title of host publication | IEEE International Symposium on High Performance Distributed Computing, Proceedings |
Publisher | IEEE |
Pages | 122-129 |
Number of pages | 8 |
State | Published - 1995 |
Externally published | Yes |
Event | Proceedings of the 4th IEEE International Symposium on High Performance Distributed Computing - Washington, DC, USA Duration: Aug 2 1995 → Aug 4 1995 |
Other
Other | Proceedings of the 4th IEEE International Symposium on High Performance Distributed Computing |
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City | Washington, DC, USA |
Period | 8/2/95 → 8/4/95 |
ASJC Scopus subject areas
- Hardware and Architecture