solving linear equation

[plutomars]

HI All,

I need to solve a dense set of linear equations; Ax =b with A of size ~4000x4000.
Using degsv of lapack I can solve it with one core in 18 seconds. My computer has however 4 cores. I was wondering if scalapack has a similar function which is parallel and could speed up my problem.

regards,

Pluto mars

[admin]

Hi, Just use a multi-threaded blas, with lapack that will give you better performance.
Your matrix size is quiet small, so LAPACK should do a good job.
If you are looking at a multithreaded library, you can check out the plasma library: http://icl.cs.utk.edu/plasma/
Hope it helps
Julie