direct parallel solver

June 23, 2001, 18:56

hello, i am looking for a direct parallel solver. Does anyone heard about such a solver which is a public domain one.

June 25, 2001, 07:09

What does "direct" means?

June 25, 2001, 08:56

Try http://cap.anu.edu.au/cap/projects/linalg + links. Just a thought: Generally you lose efficiency when opting for a direct solver (scales at best O(n to the 4/3)). Casting your discretization in a form suitable (read: high degree of diagonal dominance) for iterative solvers you can achieve O(nlogn) or even O(n) efficiency, which is a hell of a difference for large-scale problems.

Regards

Soren

June 23, 2001, 18:56	direct parallel solver	#1
sylvain Guest Posts: n/a	hello, i am looking for a direct parallel solver. Does anyone heard about such a solver which is a public domain one.

June 25, 2001, 07:09	Re: direct parallel solver	#2
Kike Guest Posts: n/a	What does "direct" means?

June 25, 2001, 08:56	Re: direct parallel solver	#3
S.Hjort Guest Posts: n/a	Try http://cap.anu.edu.au/cap/projects/linalg + links. Just a thought: Generally you lose efficiency when opting for a direct solver (scales at best O(n to the 4/3)). Casting your discretization in a form suitable (read: high degree of diagonal dominance) for iterative solvers you can achieve O(nlogn) or even O(n) efficiency, which is a hell of a difference for large-scale problems. Regards Soren

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