---
name: DIALS core meeting 2022-05-26
tags: core meeting
---

# DIALS core meeting 2022-05-26

## Previous Actions

- [ ] ND to review: TOFBeam - A time-of-flight beam in dxtbx [`cctbx/dxtbx#492`](https://github.com/cctbx/dxtbx/pull/492) ([prev](https://dials.github.io/kb/core/20220303#proposal-for-a-time-of-flight-beam-in-dxtbx))
- [ ] `std::string` support for messagepack. This is used in XFEL module, should try to fix. [`dials/dials#1858`](https://github.com/dials/dials/issues/1858).
- [ ] Is using pickle until this is fixed, so probably good to do

## Agenda

### Dropping Data Blocks

https://github.com/cctbx/dxtbx/pull/504

- [x] GW PR
- [ ] After PR/PRs, ASB to contact e.g. Mike Wall about this, too.
- GW thinks reasonable to merge when these concerns addressed
- Waiting on AB now, will get sorted as soon as can

### LCLS XFEL Updates
- [`cctbx/dxtbx#517`](https://github.com/cctbx/dxtbx/pull/517)
- GW suggested Ben to have a look
- **Action**: Add logging to the `except Exception:` so it doesn't silently ignore errors

### Dials-data updates
- ~~[`dials/data-files#42`](https://github.com/dials/data-files/pull/42) New file PR~~ Merged in meeting
- Corresponding dials-data updates

### DIALS LTS 3.8
- Phenix pinned to DIALS 3.2
- **Action: Nick**: Backport read-only-base fixes for dxtbx and xia2
- Discussion of candidates for backporting to DIALS 3.8

### LBL running workshop

- Preparing a conda cctbx.xfel package

### DIALS Conda-Forge

- SEGV problems known with `wx` on the alpha package
- Possibly Billy has encountered and fixed such a problem, Aaron will make enquiries

### Next meeting
Thursday, June 9th, 4pm UK (BST), 8am PDT.