Premium
Vectorized multigrid fluid flow calculations on a CRAY X‐MP/48
Author(s) -
Vanka S. P.,
Misegades K. P.
Publication year - 1987
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.1650070608
Subject(s) - vectorization (mathematics) , multigrid method , laminar flow , computational science , computational fluid dynamics , parallel computing , fluid dynamics , computer science , flow (mathematics) , relaxation (psychology) , supercomputer , square (algebra) , gauss–seidel method , mathematics , algorithm , iterative method , physics , mechanics , geometry , mathematical analysis , partial differential equation , psychology , social psychology
This paper discusses aspects of vectorizing a recently developed calculation procedure for multidimensional recirculating fluid flows. The solution algorithm uses a coupled Gauss‐Seidel relaxation operator in conjunction with the multigrid technique. The vectorization is performed on a CRAY X‐MP/48 using a single processor. In this paper, the vectorization techniques used and the observed speed‐ups are presented for a model problem of laminar flow in a two‐dimensional square cavity. Large scale calculations with up to one quarter of a million finite difference cells (512 x 512) have been made in 45s of CPU time.