thanks!<br><br><b><i>Satish Balay <balay@mcs.anl.gov></i></b> wrote:<blockquote class="replbq" style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"> There is a MatGetInfo() - which returns MatInfo object. You might be<br>able to do PCGetFactoredMatrix() to get the factor and call<br>MatGetInfo() on it as well..<br><br>With bjacobi - you can call PCBJacobiGetSubKSP() to get all the solver<br>objects for each sub-block [and extract subpcs, and corresponding<br>factors etc..]<br><br>Satish<br><br><br>On Fri, 11 Aug 2006, Margot Summer wrote:<br><br>> Thanks. But can we find out this info inside the code (like the way we get the number of iterations of ksp)? Also, for many subpc's, e.g. using bjacobi, -ksp_view does not print out every block. <br>> <br>> Margot<br>> <br>> Satish Balay <balay@mcs.anl.gov> wrote: You can run the code with -mat_view_info [to get the matrix info] and<br>> -ksp_view - to get the info about
the solvers [which include some<br>> details about the ilu preconditioner]<br>> <br>> Satish<br>> <br>> On Fri, 11 Aug 2006, Margot Summer wrote:<br>> <br>> > Hi,<br>> > <br>> > Is there a simple way to get the number of nonzeros of<br>> > a matrix? Further, how to find out the information<br>> > about a matrix object in KSP/PC, e.g., the number of<br>> > nonzeros of the preconditioner, or the number of<br>> > nonzeros of the ilu(icc) factor? Thanks,<br>> > <br>> > Margot <br>> > <br>> > __________________________________________________<br>> > Do You Yahoo!?<br>> > Tired of spam? Yahoo! Mail has the best spam protection around <br>> > http://mail.yahoo.com <br>> > <br>> > <br>> <br>> <br>> <br>> <br>> ---------------------------------<br>> Stay in the know. Pulse on the new Yahoo.com. Check it out.
<br><br></balay@mcs.anl.gov></blockquote><br><p> 
<hr size=1>Get your email and more, right on the <a href="http://us.rd.yahoo.com/evt=42973/*http://www.yahoo.com/preview"> new Yahoo.com</a>