efficient small matrix solver

[Barry Smith]

   Matt,

   You can the routines in src/mat/impls/baij/seq/dgefa*.c see also
src/inline/ilu.c  See also src/mat/impls/baij/seq/baijfact12.c where
there are some factorizations specifically for the Intel SSE.

   Barry


On Thu, 26 Jan 2006, Matt wrote:

> Hi,
> 
> We use PETSc and noticed on the web site that you built (from linpack)
> some routines to factor/solve small dense matrices efficiently. What
> are those routines? I'd like to get the bottom level routines as I want
> to modify them just a bit more. (I want to set the matrix size as a
> constant to help the compiler, and possibly add some pragmas to help
> the compiler.)
> 
> 
> 
> Thanks,
> 
> Matt
> 
>