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Dear E3SM Team,

A new bug-fix release of E3SM-Unified is available: 1.9.1.  E3SM-Unified is a combination conda and spack environment that includes a large amount of analysis and pre- and post-processing software for E3SM users.  The new version includes updates to MOAB, NCO, zppy, and zstash packages.

Bug fixes and improvements in 1.9.1

MOAB 5.5.1:

  • New ESMF format NC reader support

  • Improved support for reading MPAS files directly

  • Improved API documentation now available

  • Fix several outstanding issues in mbtempest tool

    • Propagate grid_dims correctly for RLL grids

    • Store history metadata as attributes for provenance

  • A new halo-exchange example to measure performance of nearest-neighbor halo-exchange communication kernels

  • Several configuration and build updates for running on ALCF and OLCF systems

NCO 5.1.9:

  • See full release notes at https://github.com/nco/nco/blob/5.1.9/doc/ANNOUNCE

  • ncremap now, by default, fills with 0.0 (instead of FillValue) gridcells where sub-gridscale fraction is zero. Previous behavior (filling with FillValue) can be restored with new --mpt_mss option.

  • ncremap supports new TR bilinear and integrated bilinear algorithm types

  • ncremap supports new standard names <WeightGenerator><AlgType> for old algorithms, e.g., esmfaave, traave, ncoaave

  • ncra, ncrcat fix behavior of dimension interleave (ILV) parameter http://nco.sf.net/nco.html#bug_ilv

  • All operator fix possible path separator issue in MS Windows

  • Improved inferral of MALI grids (radians rather than degrees automatically detected)

  • Support for attributes stored as NC_STRING rather than NC_CHAR

zppy 2.3.1:

zstash 1.4.1:

Activation

As in previous versions, you can access the environment as usual by sourcing an activation script:

Acme1:

source /p/user_pub/e3sm_unified/envs/load_latest_e3sm_unified_acme1.sh

Andes:

source /gpfs/alpine/proj-shared/cli115/e3sm-unified/load_latest_e3sm_unified_andes.sh

Anvil:

source /lcrc/soft/climate/e3sm-unified/load_latest_e3sm_unified_anvil.sh

Chicoma:

source /usr/projects/e3sm/e3sm-unified/load_latest_e3sm_unified_chicoma-cpu.sh

Chrysalis:

source /lcrc/soft/climate/e3sm-unified/load_latest_e3sm_unified_chrysalis.sh

Compy:

source /share/apps/E3SM/conda_envs/load_latest_e3sm_unified_compy.sh

Frontier:

source /ccs/proj/cli115/software/e3sm-unified/load_latest_e3sm_unified_frontier.sh

Perlmutter (CPU nodes):

source /global/common/software/e3sm/anaconda_envs/load_latest_e3sm_unified_pm-cpu.sh

Details

A few critical bugs were revealed after the release of 1.9.0 in September and these are fixed here. The new version has been deployed on our supported machines: Acme1, Andes, Anvil, Chicoma, Chrysalis, Compy, Frontier and Perlmutter. Note: We encourage users at OLCF to use Andes, rather than Frontier, for processing and analysis.

On 6 machines (Anvil, Chicoma, Chrysalis, Compy, Frontier and Perlmutter) there are 6 packages of interest -- ESMF, ILAMB, MOAB, NCO, TempestExtremes and TempestRemap -- that have been built with Spack using system compilers and MPI libraries.  When you load E3SM-Unified on a compute node, you will have access to these versions, which can be run in parallel and which will typically run more efficiently than their counterparts in conda packages.

Next version

Testing of the next version (1.10.0) is planned to begin in early February 2024 and deployment is expected in early March.  To request packages and versions to include, make a comment on Next Version.

As always, please email me if there are any questions, or post an issue at https://github.com/E3SM-Project/e3sm-unified/issues.

Cheers,

Xylar and the Infrastructure Team

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