Degree Type

Dissertation

Date of Award

2003

Degree Name

Doctor of Philosophy

Department

Computer Science

First Advisor

Ricky A. Kendall

Second Advisor

Robyn R. Lutz

Abstract

The Generalized Portable SHMEM library (GPSHMEM) is a portable implementation of the SHMEM library originally released by Cray Research Inc. on the Cray T3D. SHMEM and GPSHMEM realize the distributed shared memory programming model, that is, a shared memory programming model in environments in which memory is physically distributed. It is intended for use on a large variety of hardware platforms, including distributed systems with a network interconnect. The programming interface of GPSHMEM follows that of SHMEM and includes remote memory access operations (one-sided communication) and a set of collective routines such as broadcast, collection and reduction. Programming interfaces for C and Fortran are provided. Because of the minimal assumptions about the underlying hardware, GPSHMEM does not implement the full SHMEM T3D interface. The lack of a few functions is compensated by a set of extensions, including dynamic memory allocation for Fortran 77. To ease porting of SHMEM-enabled scientific Fortran 77 code from the Cray machines to use with GPSHMEM, a specialized Fortran 77 preprocessor was designed and developed.

DOI

https://doi.org/10.31274/rtd-180813-15336

Publisher

Digital Repository @ Iowa State University, http://lib.dr.iastate.edu

Copyright Owner

Krzysztof Parzyszek

Language

en

Proquest ID

AAI3105098

File Format

application/pdf

File Size

232 pages

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