On Thu, Mar 22, 2018 at 8:29 PM, 我 <[email protected]> wrote: > Hi all, > I want to analyze the preconditioned matrix. But the > KSPComputeExplicitOperator costs too much time to obtain the matrix. My > origin matrix is about 3000*3000 sparse one. I noticed this function is > applicable for the relative small system. What's the matrix-size limitation > for this function? And for my case, any suggestions to solve it with less > time? >
This is just a really expensive operation. There is no way around it. Matt > Thank you very much! > daye > > > > -- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener https://www.cse.buffalo.edu/~knepley/ <http://www.caam.rice.edu/~mk51/>
