Solve Symmetric System

General CULA Dense (LAPACK & BLAS) support and troubleshooting. Use this forum if you are having a general problem or have encountered a bug.

Solve Symmetric System

Postby jezz0r » Thu Jul 04, 2013 4:08 am

Hi, I have a largish (2000*2000) dense system to solve, but it is symmetric (not positive definite though). How would you suggest I deal with this? I can fill both sides of the matrix on the host before running sgesv, or I could use ssyr2k with an identity matrix to fill one side give the other, or something else? I'm looking for the fastest method. Thanks.
jezz0r
 
Posts: 5
Joined: Tue Jul 02, 2013 6:39 am

Re: Solve Symmetric System

Postby john » Mon Jul 08, 2013 6:06 am

I'd try filling the missing side. You could do this on the host or with a very simple kernel on the GPU. ssyr2k would be big-time overkill.
john
Administrator
 
Posts: 587
Joined: Thu Jul 23, 2009 2:31 pm


Return to CULA Dense Support

Who is online

Users browsing this forum: No registered users and 1 guest

cron