Record Display for the EPA National Library Catalog

RECORD NUMBER: 4 OF 13

OLS Field Name OLS Field Data
Main Title Computer Architecture for Research in Meteorology and Atmospheric Chemistry.
Author McHugh, J. ; Pierce, J. ; Rich, D. ; Dunham, J. ; McLin, D. ;
CORP Author Microelectronics Center of North Carolina, Research Triangle Park. ;Research Triangle Inst., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab.
Year Published 1987
Report Number EPA/600/3-87/049;
Stock Number PB88-145313
Additional Subjects Air pollution ; Atmospheric composition ; Meteorological data ; Research projects ; Modules ; Computer systems hardware ; Acceleration ; Coding ; Mathematical models ; Bench marks ; Profiles ; Design ; Architecture(Computers) ; Minicomputers ; Regional oxidant model program
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB88-145313 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 138p
Abstract
The study examines the feasibility of constructing a peripheral hardware module that could be attached to a mini or midsized computer to accelerate the execution of large air pollution models, such as the EPA's Regional Oxidant Model (ROM). Crucial information necessary to design such an accelerator is acquired by running the ROM computer code under instrumentation which shows how the computational load is distributed within the model and the data transfer rates between each step of the model execution. These data reveal that a model such as the ROM is not amenable to acceleration using a vector-type architecture because the computational burden is too inhomogeneous in space and time. Simulations show that an accelerator based on the tile machine architecture would be capable of executing the ROM up to 100 times faster than the host machine working alone.