<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hi,<div><br></div><div>I'm getting a KSP_DIVERGED_INDEFINITE_PC error using CG with ILU. I tried increasing the number of levels of fill and also tried other options described in <a href="http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/PC/PCILU.html">http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/PC/PCILU.html</a> but without any luck. Are there some other preconditioner options that might work? The solution converges nicely with petsc's cg + lu and sparskit2's iluk on an independent cg serial solver.</div><div><br></div><div>Thanks,<br><div>
<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; ">--<br> Hugo Gagnon<br><br></span>
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