Vectorized multigrid fluid flow calculations on a CRAY X‐MP/48 | Zendy

Vanka S. P. | Zendy; Misegades K. P. | Zendy

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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.

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