Is the range of the dofmap in parallel always the same as the range of the associated vector?

[chris.n.r...@googlemail.com]

When you have a function, e.g.

M = Mesh('mesh.xml')
Q = FunctionSpace(M, "CG", 3)
F = Function(Q)

what is the difference between Q.dofmap().local_range() and F.vector().local_range()

Obviously only relevant in parallel, but are there any circumstances where they could be different?

[ble...@karlin.mff.cuni.cz]

Dne středa, 5. června 2013 14:37:21 UTC+2 Chris Richardson napsal(a):

You can create `Vector` with arbitrary layout of entries across processes - both distributed and local. As a special case `Vector` holding dofs of `Function` has layout given by dofmap. Then these ranges are same.

[ble...@karlin.mff.cuni.cz]

Where can I find the syntax for markup?