Unbreak ptycho.solver.divided

[carterbox]

Purpose

The PR adapts the divided ptycho solver method to use the updated operators which only process one mode at a time.

Approach

To reduce the memory footprint, we process each probe mode sequentially.

Pre-Merge Checklists

Submitter

• [x] Write a helpfully descriptive pull request title.
• [ ] Organize changes into logically grouped commits with descriptive commit messages.
• [ ] Document all new functions.
• [ ] Write tests for new functions or explain why they are not needed.
• [ ] Build the documentation successfully
• [ ] Use yapf to format python code.

Reviewer

• [ ] Actually read all of the code.
• [ ] Run the new code yourself.
• [ ] Write a summary of the changes as you understand them.
• [ ] Thank the submitter.

[pep8speaks]

Hello @carterbox! Thanks for updating this PR. We checked the lines you've touched for PEP 8 issues, and found:

There are currently no PEP 8 issues detected in this Pull Request. Cheers! :beers:

Comment last updated at 2020-05-06 21:55:10 UTC

[carterbox]

Closing this pull request because supporting multiple solvers is not a high priority right now.