Accession Number:

ADA256656

Title:

Concurrent File Operations in a High Performance Fortran

Descriptive Note:

Contractor rept.

Corporate Author:

INSTITUTE FOR COMPUTER APPLICATIONS IN SCIENCE AND ENGINEERING HAMPTON VA

Report Date:

1992-09-01

Pagination or Media Count:

18.0

Abstract:

Distributed memory multiprocessor systems can provide the computing power necessary for large-scale scientific applications. A critical performance issue for a number of these applications is the efficient transfer of data to secondary storage. Recently several research groups have proposed FORTRAN language extensions for exploiting the data parallelism of such scientific codes on distributed memory architectures. However, few of these high performance FORTRANs provide appropriate constructs for controlling the use of the parallel IO capabilities of modern multiprocessing machines. In this paper, we propose constructs to specify IO operations for distributed data structures in the context of Vienna Fortran. These operations can be used by the programmer to provide information which can help the compiler and runtime environment make the most efficient use of the IO subsystem. Distributed-memory multiprocessors Concurrent inputoutput Data distribution Fortran language extensions.

Subject Categories:

  • Computer Programming and Software

Distribution Statement:

APPROVED FOR PUBLIC RELEASE