The OpenQuake engine version 3.23 (LTS) has been released

[Michele Simionato]

Version 3.23 (code name "Ethel Bellamy") is the new Long Term Support (LTS) release after version 3.16. It features massive benefits in terms of performance, expecially for large models (for instance the USA classical PSHA model is 3-4 times faster than it was in version 3.16, while the EUR event based model is even faster) and many new features.

The complete set of changes is listed in the changelog:

https://github.com/gem/oq-engine/blob/engine-3.23/debian/changelog

Summaries of the most recent changes are reported here:

https://docs.openquake.org/oq-engine/master/manual/release-notes/whats-new-3.17.html
https://docs.openquake.org/oq-engine/master/manual/release-notes/whats-new-3.18.html
https://docs.openquake.org/oq-engine/master/manual/release-notes/whats-new-3.19.html
https://docs.openquake.org/oq-engine/master/manual/release-notes/whats-new-3.20.html
https://docs.openquake.org/oq-engine/master/manual/release-notes/whats-new-3.21.html
https://docs.openquake.org/oq-engine/master/manual/release-notes/whats-new-3.22.html
https://docs.openquake.org/oq-engine/master/manual/release-notes/whats-new-3.23.html

You can install on all supported platforms (Linux, Windows, macOS) by
using the universal installer:

https://github.com/gem/oq-engine/blob/engine-3.23/doc/installing/universal.md

Windows user may prefer the native installer:

https://downloads.openquake.org/pkgs/windows/oq-engine/OpenQuake_Engine_3.23.0-1-no-toolkit.exe

The OpenQuake engine manual is available here:

https://docs.openquake.org/oq-engine/3.23/manual/getting-started/index.html

Before installing the new release you should uninstall the previous release, if you have one. As always, before upgrading, you should export any output of interests, since exporting an output computed with an older version of the engine may raise an error. Moreover, it is generally not possible to run a risk calculation starting from a hazard computed with an older version.

The results generated by version 3.23 are not expected to be identical to the results generated by version 3.16. In particular in event based calculations we changed the rupture filtering procedure and the random seed generation mechanism, so different ruptures will be sampled. The resulting GMFs will be statistically equivalent, but not identical. Even in classical calculations, improvements in the `ps_grid_spacing` approximation or bug fixes in specific GMPEs can cause slightly different results to be generated.

That's all, please let us know if you have any trouble with the upgrade.

           Michele Simionato on behalf of the OpenQuake Team

[Paolo Tormene]

Version 3.23.0 of the IRMT QGIS plugin (https://plugins.qgis.org/plugins/svir/version/3.23.0/) has been released.

This is the new recommended Long Term Support Release, compatible with the OpenQuake engine version 3.23 (LTS).
The plugin can be downloaded using the QGIS Plugin Manager (Plugins -> Manage and install plugins).

    Paolo Tormene on behalf of the OpenQuake Team

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GLOBAL EARTHQUAKE MODEL working together to assess risk

 

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[Michele Simionato]

Version 3.23.1 has been released. From the changelog:

1. Backported fix to Thingbaijam et al. (2017) scaling relation
2. Backported fix to logs.dbcmd: querying the calculations caused the DbServer to break in server installations
3. Backported fix to oq plot hcurves
4. Backported fix to Arteta (2021) missing the backarc parameter

The critical fix is the #2: without it, just looking at the calculations via the WebUI or the QGIS plugin would break the DbServer,

meaning that nothing would work anymore. This only affect root installations in linux servers.

The upgrade is expected to be seemless, you just need to upgrade and then restart the DbServer.

[Michele Simionato]

Version 3.23.3 has been released, with a few bug fixes that you can see in the changelog: https://github.com/gem/oq-engine/blob/engine-3.23/debian/changelog
The critical fix is in the TodorovicSilva2022NonParametric liquefaction model: without it, large calculations may crash your computer. If you do not use that model

and you are not affected by the other bug fixes you can avoid upgrading.

The upgrade is expected to be seemless, you just need to upgrade and then restart the DbServer.

           Michele Simionato on behalf of the OpenQuake Team