For coupled climate simulations, computing accurate and conservative field remaps are critical. The MOAB unstructured mesh library with the TempestRemap remapping tool have been integrated in an effort to provide a fast, efficient and high-order accurate implementation that is scalable on large machines (refer to our manuscript in Geoscientific Model Development [1] for more details). This work...
Read MoreMOAB Pre-installed MOAB comes pre-built in several different flavors and can be directly installed on several supported platforms. Docker image: Conda: Optional Dependencies There are several option dependencies for MOAB. Features and tools get automatically built based on the enabled dependencies when configuring MOAB library. MPI: MOAB supports usage of MPICH and OpenMPI libraries configured...
Read MoreFeatures Enhancements Fixes Features PR #557, #572, #573, #576, #580, #584: Significant updates to the iMOAB API for Fortran compatibility based on 2003 ISO_C_BINDING specifications PR #562: Parallel SCRIP NetCDF file reader for climate meshes and data Enhancements PR #567: Use source or target DoF decomposition-aware parallel read of remap files PR #578: Improve comparemaps tool PR #590: PyMOAB...
Read MoreThe SIGMA team working on several MOAB mini-apps, targeted at remapping applications in climate science recently participated in a GPU hackathon and made significant progress towards exploring performance-portable implementations for remapping weight SpMV applications, and fast Kd-tree searches on both multicore and the A100 GPU architectures. Some more details are...
Read MoreTable of Contents FeaturesEnhancementsFixes Application Support Features PR #502: Gnomonic projection option for partitioning using an “inferred” strategy with Zoltan RCB algorithm for meshes on a spherePR #513: New example to produce the dual of a delaunay mesh on a sphere to generate a polygonal grid (MPAS-like)PR #525, PR #526: CONTRIBUTING.md: Documentation and guidelines for new users...
Read MoreTable of Contents FeaturesEnhancementsFixes Features PR #424, #445, #461, #462, #467, #474: Significant feature additions to improve the TempestRemap-based mapping weights generation workflow – Expose both Kd-tree and advancing front intersection – Verifications of mapping weight generation for very high-res cases at scale – Improve mbconvert to transform TR supported file formats to MOAB h5m...
Read MoreThe MOAB v5.1.0 release includes some significant feature additions to support coupled multi-physics climate applications. Details on compatibility of the different tools and dependent libraries are available separately and all questions can be directed to [email protected] Source tarballs can be obtained from either the Bitbucket repository or through the ftp site. For more build...
Read MoreThe SIGMA v1.3 release includes a consolidated packaging of all geometry and mesh related components. Details on compatibility of the different tools and dependent libraries are available separately and all questions can be directed to <package>[email protected] Current release contains the following SIGMA tools: Common Geometry Module (CGM) – Version 16.0 Mesh Oriented datABase (MOAB) –...
Read MoreSIGMA v1.2.1 Release Notes SIGMA v1.2.1 Release Notes CGM Version 15.1 Enhancements Fixes MOAB Version 4.9.1 Features Enhancements Fixes MeshKit Version 1.4.1 Enhancements Fixes SIGMA v1.2.1 minor release includes a consolidated packaging of all geometry and mesh related components. Details on compatibility of the different tools and dependent libraries are available separately and all questions...
Read MoreGeneral What’s the largest mesh MOAB can read/write? We’ve read meshes of 128M tetrahedral elements and 256M hexahedral elements. For 64M tets, MOAB uses about 2.5GB of memory. MOAB also has a structured mesh representation, that requires about 57% less memory than the unstructured representation. Memory use does tend to vary depending on what you’re doing with the mesh, since...
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