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-   -   Can Lapack solve block systems (http://www.cfd-online.com/Forums/main/652-can-lapack-solve-block-systems.html)

Frank Muldoon March 23, 1999 01:43

Can Lapack solve block systems
 
Does anyone know if Lapack has the capability of solving Ax=b where the elements of A are themselves m by m matrices, and the elements of x and b are vectors of dimension m. I have not found anything that says that it can. Is there other public domain software that can do this efficiently?

I would greatly appreciate any help in this matter. Frank Muldoon

Jim Park March 23, 1999 15:02

Re: Can Lapack solve block systems
 
Allen Hindmarsh, at Lawrence Livermore National Lab, in Livermore, California, published a series of linear solvers in the '70s, including a block solver. If the reports are still available, they should be public domain. The Fortran listings are included.

Good luck!


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