Thanks Matt.<br><br>And Vec sits on top of BLAS/MPI ?<br><br>How are Vec-Vec operators (VecAXPBY for instance) and Mat-Mat operators (MatMatMult) performed?<br><br><br>Yaron<br><br><div><span class="gmail_quote">On 11/22/06,
<b class="gmail_sendername">Matthew Knepley</b> <<a href="mailto:knepley@gmail.com">knepley@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
There is a classic slides in all the tutorials about control flow, but<br>it is really simple:<br><br> - Mat uses Vec<br> - PC uses (Mat, Vec)<br> - KSP use (PC, Mat, Vec)<br> - SNES uses (KSP, PC, Mat, Vec)<br> - TS uses (SNES, KSP, PC, Mat, Vec)
<br><br>Very linear.<br><br> Matt<br><br>On 11/21/06, Yaron Kretchmer <<a href="mailto:yaronkretchmer@gmail.com">yaronkretchmer@gmail.com</a>> wrote:<br>> Hi all<br>> I'd like to understand the class/object hierarchy of Petsc (
i.e. KSP uses a<br>> MAT , which uses a VEC etc. etc.)- other than digging through the code, how<br>> can i do this?<br>><br>> Thanks<br>> Yaron<br>><br><br><br>--<br>"Failure has a thousand explanations. Success doesn't need one" -- Sir
<br>Alec Guiness<br><br></blockquote></div><br>