<html><body><div style="color:#000; background-color:#fff; font-family:verdana, helvetica, sans-serif;font-size:10pt"><div><span>Dear all, <br></span></div><div><span>I am quit beginner in PETSc. <br></span></div><div><span>I wrote a code for multigrid Vcycle (as preconditioer) by following the instructions on manual page. </span><span></span><span><br></span></div><div><span>I want to see how much memory a Vcycle allocates by default in terms of number of matrices and vectors. <br></span></div><div><span>I made a try to see by comparing with jacobi preconditioner, which surely allocates 1 vector ONLY. <br></span></div><div><span>It turns out that a VCycle for FIVE (5) levels including coarsest level allocates memory for 53 vectors and <br></span></div><div><span>subsequently it destroys too.</span></div><div><span><br></span></div><div><span>Is it normal ?? <br></span></div><div><span><br></span></div><div><br></div><div>Thanks in advance,
<br><span></span></div><div>Abdul<br></div><div><span style="color:rgb(0, 0, 255);"><span style="font-family:verdana, helvetica, sans-serif;"><span style="font-family:lucida console, sans-serif;"></span></span></span><span style="color:rgb(0, 0, 255);"><span style="font-family:verdana, helvetica, sans-serif;"></span></span></div></div></body></html>