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Parallel frontal solver for large‐scale process simulation and optimization
Author(s) -
Mallaya J. U.,
Zitney S. E.,
Choudhary S.,
Stadtherr M. A.
Publication year - 1997
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690430417
Subject(s) - solver , computer science , parallel computing , multiprocessing , scale (ratio) , process (computing) , computational science , factorization , linear system , vector processor , mathematical optimization , algorithm , mathematics , mathematical analysis , physics , quantum mechanics , programming language , operating system
For the simulation and optimization of large‐scale chemical processes, the overall computing time is often dominated by the time needed to solve a large sparse system of linear equations. A new parallel frontal solver that can significantly reduce the wallclock time required to solve these linear equation systems using parallel/vector supercomputers is presented. The algorithm exploits both multiprocessing and vector processing by using a multilevel approach in which frontal elimination is used for the partial factorization of each front. Results of several large‐scale process simulation and optimization problems are presented.