---
name: DIALS core meeting 2023-04-06
tags: core meeting
---

# DIALS core meeting 2023-04-06

## Previous Actions

- [ ] **ND**: PR to remove `std::string` support for messagepack from dials code
- [ ] **ND** Investigate getting `psana` tests running on the DIALS xfel-regression testing
- [ ] Dropping Data Blocks ([#504](https://github.com/cctbx/dxtbx/pull/504))
- [ ] **ND**: Look at DIALS failures and work out what needs to be migrated
- [ ] **RG**: Investigate `dials.cosym` applies an incompatible reindexing operator ([`dials/2320`](https://github.com/dials/dials/issues/2320)) ([prev](https://dials.github.io/kb/core/2023-03-09#dialscosym-applies-an-incompatible-reindexing-operator))
- [x] **DM**: Moving flex tables; Solve [`dials#2113`](https://github.com/dials/dials/pull/2113) deprecation issue and merge conflicts

## Agenda

### Moving flex tables from dials to dxtbx

https://github.com/dials/dials/pull/2113

- Previously discussed deprecation instead of direct removal
- This work appears to have been done by DM
- Had planned to re-discuss at next meeting
- Discussion about what is actually being moved/deprecated
- `flex_table` specifically is moved, but `reflection_table` is staying in DIALS as-is
- ND plans to merge next week after the DIALS release

### Code camp idea?

- Aaron suggests - a few days, couple of hours a day, work on outstanding smaller issues?
- Virtual DIALS code-camp
- Split into sessions:
- Planning
- Coding
- Closeout
- Graeme suggests linking to potential serial workshop being talked about at Cornell/CHESS for ~end of July
- Initial plans for Week of 17th July, unconfirmed

### NX Writer! ([prev](https://dials.github.io/kb/core/2023-03-09#aob))

- Did some scan-related work last time
- What is state?
- Few test failures relating to dependencies on dials, xfel
- These will be worked on!
- ND to merge https://github.com/cctbx/dxtbx/pull/612

### AOB?

### Next meeting

Thursday, April 20th, 4pm (BST), 8am (PDT)