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ESMF 8.3.1
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@theurich theurich released this 21 Sep 22:23
· 1444 commits to develop since this release
v8.3.1
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Overview

ESMF 8.3.1 is a patch release that fixes a number of issues that were noticed after the 8.3.0 release. While most of the issues are minor, they have been reported as problems under specific user applications. The 8.3.1 patch release provides a path for affected applications to upgrade and use an official ESMF release instead of a beta tag in the 8.4.0 series currently in development.

As a patch release, 8.3.1 does not introduce new features. Applications that work fine with 8.3.0, or are already on a 8.4.0 beta tag, need not upgrade to the 8.3.1 patch. For these cases an upgrade to 8.4.0, when officially released, is the recommended next step. All of the fixes in the 8.3.1 release are also available in beta tag v8.4.0b11 and newer.

Release Notes

  • This patch release is backward compatible with ESMF 8.3.0.
  • No bit-for-bit changes are expected for this release compared to ESMF 8.3.0.
  • No changes were made to the ESMF regrid weight generation methods and applications. The ESMF tables summarizing the ESMF regridding status are unchanged.
  • The ESMF communication layer now supports single messages that are above the previous 2GiB limit. This applies to the direct usage of ESMF_VM communication calls, but also extends to ESMF_RouteHandle based communication methods: Regrid, Redist, Halo, and SMM. User applications have been observed to push over the previous 32-bit message limit when each PET addresses a substantial amount of memory and calls into the ESMF communication methods. Before this fix, a user could experience application crashes in the MPI layer due to ESMF attempting to send messages that exceed the 32-bit size limit.
  • An issue inside ESMF_Info was fixed in which the data type and precision of attributes was not properly set when querying for an attribute through ESMF_InfoGet(). This led to a downstream issue of writing NetCDF attributes with a precision inconsistent with the attribute's precision inside the ESMF_Info object.
  • Fixed an issue in which the IO layer was incorrectly querying for the number of compute cores on a node. In some cases, the bug led to application hangs during IO operations (e.g. ArrayWrite) that span multiple nodes.
  • An issue was fixed in the IO layer that occurred when reading through PNetCDF into a destination with repeating elements (e.g. halo points). When used to read a Mesh from file, this problem caused bad coordinate values to be set in the created mesh. This in turn led to very poor performance when subsequently using the Mesh in a regrid weight generation operation.
  • The IO performance and memory requirement for the Read() operation was significantly improved by eliminating a costly check only relevant for Write() operations.
  • An issue observed under Darwin M1 systems with ESMP_Initailize() called by ESMPy was fixed.
  • The ESMPy syntax was corrected to allow for calls with property accessor Manager.local_pet.
  • The internal MOAB library included with ESMF now builds under old GCC 5.4.x.

Known Issues

  • Same as ESMF 8.3.0.

Documentation

Tables

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