<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<font size="-1">Dear PETSc developers,<br>
I updated from 3.4 to 3.6 and I have a strange behavior with the
GAMG preconditioner. I am running ex54 with the following options:
<br>
-ne 1023 -ksp_rtol 1e-10 -ksp_monitor_true_residual -options_left
<br>
<br>
I don't have the same behavior depending on the number of process
used. It is for example not converging with 8 and 12 process with
the reason KSP_DIVERGED_INDEFINITE_PC but it is working fine in
other cases (I didn't try with more than 12 process).<br>
<br>
Do you have the same behavior ? It is working fine with 3.4
version.<br>
<br>
Best,<br>
<br>
Benoit<br>
<br>
<br>
<br>
</font>
</body>
</html>