Known bugs and issues

Please see our Issue tracker on GitHub for a list of recent bugs and fixes.

Current bug reports

These bug reports (on GitHub) are currently unresolved. We hope to fix these in future releases.

Other issues that you should know about

GCC 12.2.0 is discontinued in Spack v1.0.0

As of Spack v1.0, spack-packages has been split off into its own separate repository. This change includes the unfortunate deprecation of the GNU Compiler Collection (GCC) version 12.2.0. It appears that only the most recent minor release in each major release is now treated as stable. These deprecations are updated promptly for example, GCC 12.4.0 is already marked as deprecated just 10 days after the release of GCC 12.5.0.

Deprecated GCC versions are no longer listed with the spack info command, so rather than warning users about deprecation, Spack simply fails with an unhelpful error message about not being able to satisfy the request.

For the time being, we recommend that you use Spack release v0.23.1 which still supports GCC 12.2.0 and related libraries. Please see our Build required software with Spack Supplemental Guide for an updated Spack installation workflow.

Masks cannot be applied to extensions

It is currently not possible to geographically tag emissions computed by HEMCO extensions in the same way that you would do for base emissions. We hope to add this feature into a future HEMCO release.

HEMCO may not recognize alternate spellings of units

If a unit string (e.g. kg/m2/s) read from a netCDF file matches the unit string listed under the SrcUnit column of the HEMCO configuration file, then no unit conversion will happen.

But if the unit string in the file is e.g. kg m-2 s-1 and the unit in the configuration file is kg/m2/s, then HEMCO detects this as a difference in units, and will try to apply an automatic conversion that is really unnecssary.

Therefore, we recommend not to rely on HEMCO’s automatic unit capability, and to specfiy all scale factors for unit conversions explicitly in the configuration file.

Bugs that have been resolved

These bugs (reported on GitHub) have been resolved.