ChimeraX Developer Meeting

Attendance: Selina, Eric, Zach, Tom, Greg

May 22, 2023

Agenda

• Test results for ChimeraX built with Python 3.11
• Release initial ChimeraX library on PyPi or Conda
• ChimeraX 1.7 roadmap
• Update ChimeraX prereqs
• Chimera/ChimeraX notarization scripts need updating, Apple deprecated altool command Fall 2023 ​#7234
• ChimeraX Ideas milestone clean-up.
• Install Splunk on plato to monitor web services.
• Back up the Chimera build machine to a solid state drive, Windows 7?
• Toolshed bundle requirement checking
• Discuss possible OpenMM and VR improvements for Tristan and Altos to pursue

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Discussion

• Plato operating system update
  • ChimeraX nightly builds broken due to ssh problems to plato
  • Chimera builds broken due to python2 scripts, plato does not have python2

• Expired certificates
  • Email broken due to expired certificates
  • Greg is working on getting new Let's Encrypt certificates.
  • Trying to get DNS verification with Let's Encrypt to work
  • Verification for web certificates by putting token on web site uses port 80 (http) which is not open on SPOKE.

• ChimeraX builds with Python 3.11
  • Zach tested builds. Working on all platforms except Linux Wayland.
  • Wayland build can't get graphics OpenGL context.
  • ChimeraX 1.6 we think works on Wayland and uses XWayland, setting environ variables at startup.
  • Not clear why python 3.11 chimerax would have opengl problem when python 3.9 chimerax works.
  • Zach tried EGL context, and that made graphics and qt work, but background color in graphics is transparent.
  • Greg says proprietary Nvidia drivers in the past did not support Wayland.
  • Not known what percentage of Linux users use Wayland. It is the default on Ubuntu 22 and newer Fedora.
  • Zach will continue investigating how to get python 3.11 chimerax working on wayland.
  • Zach got tinyarray builds for all platforms from conda, put on plato prereqs because pip install failed.

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Action Items

• Present github continuous integration tutorial. Zach
• Beta releases on Toolshed - make ticket for this. Greg