Freeze Some DOFs

[skang67]

In parallel FEAP 8.4, is it possible to freeze some dofs during the solution procedure? I think this can be viewed as 'partition' in serial FEAP for operator split or staggered solution.

If it is not doable with intrinsic commands of parFEAP, can you give me some tips which part of the code should I modify for the staggered solution? Thank you.

[Prof. S. Govindjee]

We have never done this with parFEAP so it would highly experimental.

I see two options:

1)  Add PARTitions to parFEAP.

2)  Try to play some games with PETSc's built-in features for split-field features.

I don't have any concrete ideas on this right now but you could try asking Prof. Waisman at Columbia.  I believe that some of his students have used the split-field features and that they work on problems that do benefit from staggering together with FEAP.

[skang67]

Thank you so much, Professor.