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Solve Symmetric System

PostPosted: Thu Jul 04, 2013 4:08 am
by jezz0r
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.

Re: Solve Symmetric System

PostPosted: Mon Jul 08, 2013 6:06 am
by john
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.