I'm still doing testing on System::update() with the large systems that are giving us problems.  I haven't been able to isolate the problem yet.... but I'm working on it.  I am thinking that the issue might actually be elsewhere but it's causing the failure in System::update().... I'm somewhat hopeful that after I track it down we might be able to revert System::update() to the previous algorithm.

Sorry it's taking so long.... just hard to debug these big problems.


On Jun 10, 2011, at 8:44 AM, David Andrs wrote:


So we bumped into another issue with the recent libMesh update. It seems that System::update() does not close() the solution vector any more, however this call is crucial if the solution vector is ghosted.

Attached is the patch that fixes it.


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