Generating and computing tensor subblocks for mixed spaces
Add functionality for computing only subblocks of the element tensors.
This is useful both for standard mixed spaces and for restricted mixed spaces.
Blueprint information
- Status:
- Not started
- Approver:
- None
- Priority:
- Low
- Drafter:
- None
- Direction:
- Needs approval
- Assignee:
- None
- Definition:
- Discussion
- Series goal:
- None
- Implementation:
-
Unknown
- Milestone target:
- None
- Started by
- Completed by
Whiteboard
MER: Two design suggestions:
Alternative 1:
--------------
Generate integrals for each "block" and keep track of them in a nested
hierarchy (similar to dofmaps and elements) ala
class *_integral {
virtual ufc::integral* create_
...
}
Alternative 2:
--------------
Add function 'tabulate_
void tabulate_
where block is of length rank and refers to the top level
of the mixed space. For more flexibility, we could
also add:
void tabulate_
for block relative to nestation level.
NB: Important to reuse geometry computations when possible.
