The paper is about design of object stores for distributed memory computers. Problems of distribution within such stores are described through the design of Multicomputer Texas, a system derived from the Texas store [SKW92] and implemented on a scalable multicomputer (a Fujitsu AP1000). Problems discussed include creating a single image of an object space across multicomputer architectures, tradeoffs between page-based and object-based granularity, the distribution of store level services and the management of concurrency and persistance within those distributed services. Problems of building layered software on multicomputers pervade these issues. Preliminary scalability performance figures for Multicomputer Texas are also presented.

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The paper is about design of object stores for distributed memory computers. Problems of distribution within such stores are described through the design of Distributed Texas, a system derived from the Texas store [6] and implemented on a scalable multicomputer (a Fujitsu AP1000). Problems discussed include creating a single image of an object space across multicomputer architectures, tradeoffs between page-based and object-based granularity, the distribution of store level services and the management of concurrency and persistance within those distributed services. Problems of building layered software on multicomputers pervade these issues. Preliminary scalability performance figures for Distributed Texas are also presented. Keywords: multicomputer, object store, distributed shared memory, parallel systems, persistence. 1 Introduction 1.1 Multicomputer Object Stores This paper reports the design and outcome of an experiment in scalable object stores. The context of the exp...

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