[femutils] BSR Matrix Storage Format #198
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poisson, it is used for 2D and 3D, for elasticity, only 2D is supported.
Elasticity modules
fem-utils functions in more specific namespaces
rm[femutils]: remove empty BSRFormat.cc clean[femutils]: clean poisson clean[elasticity]: refactor cleam[femutils]: add comments feat[femutils]: compute nz per row array on gpu
grospelliergilles
approved these changes
Dec 19, 2024
Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## main #198 +/- ##
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+ Coverage 70.69% 70.71% +0.01%
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Files 56 58 +2
Lines 8391 8836 +445
Branches 1006 1049 +43
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+ Hits 5932 6248 +316
- Misses 2176 2293 +117
- Partials 283 295 +12 ☔ View full report in Codecov by Sentry. |
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This pull request implements the BSR Sparse Matrix Storage Format into ArcaneFem
Femutilslibrary.The implementation is composed of two classes:
BSRMatrix: stores the non-zero coefficients of a matrix within three arrays:
values,columnsandrow_index. It provides a simple interface to handle coefficients, convert to CSR format and translate to linear system.BSRFormat: provide functions to assemble a BSR matrix from mesh informations. Supports meshes with multiple degrees-of-freedom. Uses a
BSRMatrixunder the hood. Most of functions use GPU via Arcane accelerator API. Matrix assembly can be done "cell-wise" (with the use of an atomic operation) or "node-wise" for both triangular and tetrahedral elements. It is designed to be used by ArcaneFem modules.This pull request demonstrates the use of the new
BSRMatrixandBSRFormatclasses within two modules:Poisson(1 DoF, 2D & 3D) andElasticity(2 DoFs, 2D). Thebsroption can be pass to.arcfiles to enable its use. Tests have been added for those modules.