Methods of reducing program-execution time under RT-11 FORTRAN

Technical Report · Thu Apr 01 04:00:00 EST 1982

DOI:https://doi.org/10.2172/5259798· OSTI ID:5259798

Isidoro, R J; Trellue, R E

The Quality Assurance (QA) Department of Sandia National Laboratories is responsible to the Department of Energy for assurance that weapons remain functional throughout their stockpile life. To accomplish this, QA conducts laboratory system tests on the Sandia-designed components of the weapon system. Joint flight tests with the Department of Defense are also conducted. The data acquisition and processing system used to acquire and analyze test results was designed by the QA Systems Test Equipment Design Division. The acquisition systems are built around PDP 11/34 computers. There are six similar acquisition systems that collect data independently from many unique weapon testers. A test usually lasts several minutes. After the data are acquired, the system engineers are interested in seeing the results as soon as possible. The complete test analysis must be known before disassembling the test equipment and moving on to the next scheduled test. If anomalies were present, disassembling would compromise posttest trouble-shooting procedures. The analysis for each test is therefore performed on the acquisition machine immediately after each test and must be completed in as short a time as possible. The FORTRAN software package used to analyze the results of laboratory system tests is considered. How the software works, problems encountered when it was decided to double the number of data acquisition channels to analyze, and the solution to the problems arrived at by benchmarking the programs with optional equipment that could be added to the existing configuration are discussed. (WHK)

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5259798
• Report Number(s): SAND-81-2494; ON: DE82015658
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420200* -- Engineering-- Facilities
Equipment
& Techniques
BENCHMARKS
COMPUTERS
DATA ACQUISITION
DATA PROCESSING
DEC COMPUTERS
ELECTRONIC CIRCUITS
FORTRAN
MICROELECTRONIC CIRCUITS
MICROPROCESSORS
OPTIMIZATION
PDP COMPUTERS
PROCESSING
PROGRAMMING LANGUAGES
QUALITY ASSURANCE
STORAGE
SURVEILLANCE
TESTING
WEAPONS