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PDF Search and Match Algorithms for the Cyber 205 Vector Processor

Published online by Cambridge University Press:  06 March 2019

Dale Winder  and
Bruce Loftis
Dale Winder
Affiliation:
Physics Department, Colorado State University, Fort Collins, CO 80523
Bruce Loftis
Affiliation:
Physics Department, Colorado State University, Fort Collins, CO 80523
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Extract

The CYBER 205 has a number of features applicable to the manipulation of the powder diffraction file (PDF). The FORTRAN language has been extended to include many vector procedures and calls to internal system procedures (e.g., the system clock, is accessible and timing of routines is accurate to a microsecond). A VECTOR is specified by its address and its length. A pointer to a vector, a DESCRIPTOR, can be assigned and then used in arithmetic and relational expressions. A BIT vector is a binary switch such that a bit value (ON or OFF) can control the disposition of a corresponding element of a vector. The maximum size of a vector is 65535 elements.

Type
I. J. D. Hanawalt Award Session on Search/Match Methods
Information
Advances in X-Ray Analysis , Volume 27: Thirty-Second Annual Conference on Applications of X-ray Analysis, August 1-5, 1983 , 1983 , pp. 35 - 36
Copyright
Copyright © International Centre for Diffraction Data 1983

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