I believe there is a problem with the option that you specified. All these<br>
are integers, and it is complaining that the integer does not match<br>
MAT_SYMMETRIC. I will fix the error message to print the offending<br>
option, but please check the code.<br>
<br>
Thanks,<br>
<br>
Matt<br><br><div><span class="gmail_quote">On 5/9/06, <b class="gmail_sendername">Boulahya Faïza</b> <<a href="mailto:F.Boulahya@brgm.fr">F.Boulahya@brgm.fr</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;">
<div style="direction: ltr;">
<div><span><font face="Arial" size="2">Hi
All,</font></span></div>
<div><span><font face="Arial" size="2"></font></span> </div>
<div><span><font face="Arial" size="2">Has anyone used
Conjugate Gradient Solver + Icomplete Cholesky Preconditionner in parallel case?
I tried as said in the manual : I use MATMPIROWBS for the storage of the
matrice. However I get this message :</font></span></div>
<div><span><font face="Arial" size="2"></font></span> </div>
<div><span><font face="Arial" size="2">PETSC ERROR: To use
incomplete
Cholesky<br>
preconditioning with a MATMPIROWBS matrix you must declare it to be<br>
symmetric using the option MatSetOption(A,MAT_SYMMETRIC)!<br></font></span></div>
<div><span><font face="Arial" size="2"></font></span> </div>
<div><span><font face="Arial" size="2">So I tried adding
this option (even if in the namual it is written that it is not required). Then
I obtained this message</font></span></div>
<div><span><font face="Arial" size="2">PETSC ERROR:
MatSetOption_MPIRowbs() line 1411 in src/mat/impls/rowbs/mpi/mpirowbs.c<br>PETSC
ERROR: No support for this operation for this object type!<br>PETSC ERROR:
unknown option!<br>PETSC ERROR: MatSetOption() line 4137 in
src/mat/interface/matrix.c<br></font></span></div>
<div><span><font face="Arial" size="2"></font></span> </div>
<div><span><font face="Arial" size="2"><font face="Courier" size="3"><font face="Arial" size="2">In advance
thanks,</font></font></font></span></div>
<div><span><span><font face="Arial" size="2"></font> </span></span></div>
<div> </div>
<div align="left"><font face="Arial" size="2">Faïza</font></div>
<div> </div>
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</div></blockquote></div><br><br clear="all"><br>-- <br>"Failure has a thousand explanations. Success doesn't need one" -- Sir Alec Guiness