GEOS-ESM/MAPL: MAPL 2.71.0

This release of MAPL fixes a few bugs for our Python DSL work as well as issues found in using time_ave_util.x.

The other bulk of changes is to better support Baselibs and Spack builds of GEOS and MAPL. For this, we now use ESMA_cmake v4.44.0.

Tests show this is zero-diff to v2.70.0

This version of MAPL was tested with:

• Intel Fortran Classic (ifort) 2021.13
• Intel Fortran (ifx) 2025.3
  • NOTE: oneAPI 2026.0 and 2026.1 have issues with GFE libraries and MAPL
• GCC 14.2.0, 15.2.0, 16.1.0
• NAG 7.2
• Flang 22.1

The libraries this version of MAPL is currently tested with are below.

• Baselibs 8.32.0
  • netcdf-c 4.9.2
  • netcdf-fortran 4.6.1
  • ESMF 9.0.0b10 (Note: MAPL only requires 8.6.1 at the moment)
  • GFE 1.28.0
    • gFTL 1.17.0
    • gFTL-shared 1.12.0
    • pFUnit 4.19.0 (optional)
    • fArgParse 1.11.0 (if -DBUILD_WITH_FARGPARSE=YES, default=YES)
    • pFlogger 1.18.1 (if -DBUILD_WITH_PFLOGGER=YES, default=YES)
  • UDUNITS2 2.2.28

Also, if you build with Baselibs and/or -DUSE_F2PY=ON, you should use (at least):

• ESMA_cmake v4.44.0

We recommend most external users set -DUSE_F2PY=OFF

We also require CMake 3.24 or higher.

From CHANGELOG.md

Fixed

• Fixed the unreliable feedback from Python bridge failures
• Fixed bug that allowed ExtData2G to proceed if an invalid sampling key was provided

Added

• field_bundle_read can now fill an empty bundle from a file that has both edge and center 3D fields (forward port of MAPL 2.57.2 fix)

Changed

• MAPL_GridGet will now return 0 instead of 1 if the grid was never set with the "LM" attribute for the vertical grid size
• Removed the manual find_package(MPI)/find_package(NetCDF)/find_package(HDF5)/find_package(ESMF) block (and the Baselibs-only ESMF version guard) from the top-level CMakeLists.txt. As of ESMA_cmake v4.43.0, esma.cmake automatically include()s ConfigureBaselibs.cmake or ConfigureExternalLibraries.cmake based on Baselibs_FOUND right after include(FindBaselibs), creating all of these dependency targets for us, including enforcing a minimum ESMF version of 8.6.1 for both Baselibs and Spack/non-Baselibs builds
• Update components.yaml
  • ESMA_cmake v4.44.0
    • Support for ESMFConfig.cmake
  • ESMA_cmake v4.43.0
    • Split dependency-target creation (NetCDF, HDF5, ESMF, FMS, etc.) out of FindBaselibs.cmake into ConfigureBaselibs.cmake and ConfigureExternalLibraries.cmake; esma.cmake now include()s the appropriate one automatically based on Baselibs_FOUND
    • Guard the historical ZLIB::zlib alias creation with if(NOT TARGET ZLIB::zlib)
    • Only look for FMS via find_package when FV_PRECISION is defined, so projects like MAPL that don't use FMS no longer require it
    • Enforce a minimum ESMF version for Baselibs builds (previously only enforced for Spack/non-Baselibs builds)
    • Added an ESMA_ESMF_MIN_VERSION variable, settable before include(esma), to control the minimum ESMF version enforced for both Baselibs and Spack builds (defaults to 8.6.1)
    • Suppress compiler -save-temps in Debug builds generated with Ninja to prevent parallel compile collisions for shared source basenames
    • Keep ESMF wrapper link options in INTERFACE_LINK_OPTIONS rather than treating them as libraries in FindESMF.cmake
    • Added copy_restarts() helper function to esma_regression_run_helpers.cmake for regression test restart handling
    • Update GitHub Actions workflow dependencies (actions/checkout, actions/upload-artifact) to current major versions
  • ESMA_cmake v4.42.0
    • Fix CMake 4.0 CMP0219 policy warning in esma_generate_gocart_code macro
    • Fix f2py and f2py3 NetCDF-Fortran builds and post-build Python import tests when dependencies are supplied by Spack
  • ESMA_cmake v4.41.0
    • Add new esma_install_manifest.cmake to create a manifest of installed files
    • Added esma_add_regression_tests() macro to centralise the CMake boilerplate for registering GEOS component regression tests
    • Added esma_sync_aws_s3_data.cmake and esma_regression_run_helpers.cmake to support S3-based regression test data
    • Switch macOS RPATH in osx_extras.cmake from absolute to relative (@loader_path/../lib) so experiment-local install trees resolve GEOS/MAPL shared libraries correctly

What's Changed

• Bump devops-infra/action-pull-request from 1.3.0 to 1.4.0 in the github-actions group by @dependabot[bot] in https://github.com/GEOS-ESM/MAPL/pull/5245
• Auto GitFlow - main → release/v2 by @github-actions[bot] in https://github.com/GEOS-ESM/MAPL/pull/5247
• Fix invalid sample key in MAPL2 by @bena-nasa in https://github.com/GEOS-ESM/MAPL/pull/5272
• Forward port v2.57.2 to release/v2 by @mathomp4 in https://github.com/GEOS-ESM/MAPL/pull/5274
• Bump actions/setup-python from 6 to 7 in the github-actions group by @dependabot[bot] in https://github.com/GEOS-ESM/MAPL/pull/5275
• Auto GitFlow - main → release/v2 by @github-actions[bot] in https://github.com/GEOS-ESM/MAPL/pull/5277
• Bump actions/stale from 10 to 11 in the github-actions group by @dependabot[bot] in https://github.com/GEOS-ESM/MAPL/pull/5284
• Auto GitFlow - main → release/v2 by @github-actions[bot] in https://github.com/GEOS-ESM/MAPL/pull/5287
• [v2 | PythonBridge] Fix the stack print from error/raise by @FlorianDeconinck in https://github.com/GEOS-ESM/MAPL/pull/5330
• v2: Improve MAPL2 Spack library support by @mathomp4 in https://github.com/GEOS-ESM/MAPL/pull/5283
• v2: Update to ESMA_cmake v4.44.0 by @mathomp4 in https://github.com/GEOS-ESM/MAPL/pull/5335
• GitFlow: Merge release/v2 into main for 2.71.0 release by @mathomp4 in https://github.com/GEOS-ESM/MAPL/pull/5336
• change default of MAPL_GridGet from 1 to 0 by @bena-nasa in https://github.com/GEOS-ESM/MAPL/pull/5338
• change default of MAPL_GridGet from 1 to 0 (#5338) by @mathomp4 in https://github.com/GEOS-ESM/MAPL/pull/5339

Full Changelog: https://github.com/GEOS-ESM/MAPL/compare/v2.70.0...v2.71.0