Methods of reducing program execution time under RT-11 fortran

Conference · Thu Jan 01 04:00:00 EST 1981

OSTI ID:6000568

Isidoro, B; Trellue, R

A requirement to double the number of data channels for our RT-11 data acquisition and processing system on a PDP 11/34 with RK05 disks from 64 channels to 128 led us to consider reducing the size of the buffers used to sort the data since the program size had already reached the upper limit. But the reduction in buffer size could result in a significant increase in processing time. It was decided to conduct a benchmark study to determine if processing time could be improved by using virtual arrays to optimize buffer size. Additional test runs were performed utilizing cache memory, a floating point processor, different disks, and various processors. The results of this study should provide our management with sufficient data to determine the cost effectiveness of buying additional memory, or other improvements to the present RT-11 systems.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• OSTI ID: 6000568
• Report Number(s): SAND-81-2494C; CONF-811214-1; ON: DE82003342
• Country of Publication: United States
• Language: English

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45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450202* -- Explosions & Explosives-- Nuclear-- Weaponry-- (-1989)
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