I'm getting the following error when using GAMG.<br><br>petsc-dev/src/ksp/pc/impls/gamg/agg.c:508: smoothAggs: Assertion `sgid==-1' failed.<br><br>When I try to alter the type of aggregation at the command line using -pc_gamg_type pa, I'm getting <br>
<br>[0]PETSC ERROR: [1]PETSC ERROR: --------------------- Error Message ------------------------------------<br>[1]PETSC ERROR: Unknown type. Check for miss-spelling or missing external package needed for type:<br>see <a href="http://www.mcs.anl.gov/petsc/documentation/installation.html#external">http://www.mcs.anl.gov/petsc/documentation/installation.html#external</a>!<br>
[1]PETSC ERROR: Unknown GAMG type pa given!<br><br>Has there been a change in the aggregation options? I just pulled petsc-dev this morning.<br><br>John<br>