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  • 1
    Publication Date: 2019-06-28
    Description: Here, it is explained why the FORCE parallel programming language is easily portable among six different shared-memory microprocessors, and how a two-level macro preprocessor makes it possible to hide low level machine dependencies and to build machine-independent high level constructs on top of them. These FORCE constructs make it possible to write portable parallel programs largely independent of the number of processes and the specific shared memory multiprocessor executing them.
    Keywords: COMPUTER PROGRAMMING AND SOFTWARE
    Type: NASA-CR-187928 , NAS 1.26:187928 , CSDG-89-2
    Format: application/pdf
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  • 2
    Publication Date: 2019-06-28
    Description: A methodology for writing parallel programs for shared memory multiprocessors has been formalized as an extension to the Fortran language and implemented as a macro preprocessor. The extended language is known as the Force, and this manual describes how to write Force programs and execute them on the Flexible Computer Corporation Flex/32, the Encore Multimax and the Sequent Balance computers. The parallel extension macros are described in detail, but knowledge of Fortran is assumed.
    Keywords: COMPUTER PROGRAMMING AND SOFTWARE
    Type: NASA-CR-180964 , NAS 1.26:180964
    Format: application/pdf
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  • 3
    Publication Date: 2019-06-28
    Description: The use of Force, a parallel, portable FORTRAN on shared memory parallel computers is described. Force simplifies writing code for parallel computers and, once the parallel code is written, it is easily ported to computers on which Force is installed. Although Force is nearly the same for all computers, specific details are included for the Cray-2, Cray-YMP, Convex 220, Flex/32, Encore, Sequent, Alliant computers on which it is installed.
    Keywords: COMPUTER PROGRAMMING AND SOFTWARE
    Type: NASA-CR-4265 , NAS 1.26:4265
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  • 4
    Publication Date: 2019-07-13
    Description: This paper explains why the FORCE parallel programming language is easily portable among six different shared-memory multiprocessors, and how a two-level macro preprocessor makes it possible to hide low-level machine dependencies and to build machine-independent high-level constructs on top of them. These FORCE constructs make it possible to write portable parallel programs largely independent of the number of processes and the specific shared-memory multiprocessor executing them.
    Keywords: COMPUTER PROGRAMMING AND SOFTWARE
    Type: 1989 International Conference on Parallel Processing; Aug 08, 1989 - Aug 12, 1989; University Park, PA; United States
    Format: text
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  • 5
    Publication Date: 2019-07-13
    Description: A programming methodology is introduced that utilizes computational synchronization and avoids tight control flow synchronization in parallel programs. In this methodology, each phase of the computation is assigned a status that can be ready, blocked, or completed, and tasks in each computational phase are self-scheduled to ensure computational progress by the available executing processes. Results indicate that this methodology avoids the catastrophic performance losses resulting from the swapping of processes in multiprogrammed multiprocessors.
    Keywords: COMPUTER PROGRAMMING AND SOFTWARE
    Type: SIAM Conference on Parrallel Processing for Scientific Computing; Dec 01, 1987 - Dec 04, 1987; Los Angeles, CA; United States
    Format: text
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