Hi everyone,<br><br>I've a simple question: I'm solving successive linear systems, and the way I've implemented my problem it calls MatAssemblyBegin and MatAssemblyEnd every time before the call to KSPSolve. The sparsity pattern of my matrix does not change between the calls. Is it necessary to call the pair MatAssemblyBegin/End every time? If it is not necessary, do these routines check if I've already assembled the matrices or not? Does it hurt performance if I do so?<br>
<br>Thanks.<br>Best regards,<br>Bernardo M. R.<br><br><br>