PORTING AN INDUSTRIAL SHEET-METAL FORMING CODE TO A DISTRIBUTED-MEMORY PARALLEL COMPUTER

Authors
NIKISHKOV GP KAWKA M MAKINOUCHI A YAGAWA G YOSHIMURA S
Citation
Gp. Nikishkov et al., PORTING AN INDUSTRIAL SHEET-METAL FORMING CODE TO A DISTRIBUTED-MEMORY PARALLEL COMPUTER, Computers & structures, 67(6), 1998, pp. 439-449
Citations number
13
Categorie Soggetti
Computer Science Interdisciplinary Applications","Computer Science Interdisciplinary Applications","Engineering, Civil
Journal title
Computers & structures → ACNP
ISSN journal
00457949
Volume
67
Issue
6
Year of publication
1998
Pages
439 - 449
Database
ISI
SICI code
0045-7949(1998)67:6<439:PAISFC>2.0.ZU;2-6
Abstract
The parallel version of the sheet metal forming semi-implicit finite e lement code ITAS3D has been developed using the domain decomposition m ethod and direct solution methods at both subdomain and interface leve ls. IBM Message Passing Library is used for data communication between tasks of the parallel code. Solutions of some sheet metal forming pro blems on IBM SP2 computer show that the adopted DDM algorithm with the direct solver provides acceptable parallel efficiency using a moderat e number of processors. The speedup 6.7 is achieved for the problem wi th 20000 degrees-of-freedom on the 8-processor configuration. (C) 1998 Elsevier Science Ltd. All rights reserved.