On Wed, Jul 13, 2011 at 4:08 PM, Clemens Domanig <span dir="ltr"><<a href="mailto:clemens.domanig@uibk.ac.at">clemens.domanig@uibk.ac.at</a>></span> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Hi everyone,<br>
<br>
maybe some can offer som debugging-hints for my problem.<br></blockquote><div><br></div><div>Its possible that there is a bug in the inode routines. Please try running with -mat_no_inode</div><div><br></div><div> Thanks,</div>
<div><br></div><div> Matt</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
My FEM-program uses a shell-element that has depending on the geometry 5 or 6 dof per node.<br>
<br>
The program uses MPI for parallel solving (LU, mumps).<br>
It works fine with all examples that have onyl 5 dof per node and that have a mixture of 5 and 6 dof per node.<br>
When doing examples that have 6 dof per node this happens:<br>
* when using more than 2 MPI processes everything seems to be fine.<br>
* when using 1 or 2 MPI processes MatAssemblyBegin() never finishes<br>
<br>
This is the last output of -info, -mat_view_info, -vec_view_info (with 2 MPI processes, matrix size 1107648x1107648)<br>
<br>
[1] MatAssemblyBegin_MPIAIJ(): Stash has 0 entries, uses 0 mallocs.<br>
[0] MatStashScatterBegin_Private()<u></u>: No of messages: 1<br>
[0] MatStashScatterBegin_Private()<u></u>: Mesg_to: 1: size: 704692232<br>
[0] MatAssemblyBegin_MPIAIJ(): Stash has 88086528 entries, uses 13 mallocs.<br>
[0] MatAssemblyEnd_SeqAIJ(): Matrix size: 553824 X 553824; storage space: 24984360 unneeded,19875384 used<br>
[0] MatAssemblyEnd_SeqAIJ(): Number of mallocs during MatSetValues() is 0<br>
[0] MatAssemblyEnd_SeqAIJ(): Maximum nonzeros in any row is 42<br>
[0] Mat_CheckInode(): Found 184608 nodes of 553824. Limit used: 5. Using Inode routines<br>
<br>
Thx for your help - respectfully C. Domanig<br>
</blockquote></div><br><br clear="all"><br>-- <br>What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.<br>-- Norbert Wiener<br>