<div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Hi. I have some questions.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">What is the difference between DMCreateGlobalVector and DMGetGlobalVector (and the local counterparts)?</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">What happens when one calls SNESSolve with NULL for the solution vector, as in src/snes/examples/tutorials/ex7.c:158? SNESSolve(snes,NULL,NULL);</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Thank you.</div></div>