The Great Refactoring + Multi-Material support

.clang-format

@@ -0,0 +1,141 @@
+---
+# Rust-style formatting for C++17 (ExaConstit)
+Language: Cpp
+Standard: c++17
+
+# Line length matching rustfmt default
+ColumnLimit: 100
+
+# Indentation - Rust uses 4 spaces everywhere
+IndentWidth: 4
+TabWidth: 4
+UseTab: Never
+ContinuationIndentWidth: 4
+AccessModifierOffset: -4
+IndentCaseLabels: false
+IndentCaseBlocks: false
+IndentGotoLabels: false
+IndentPPDirectives: None
+IndentExternBlock: NoIndent
+IndentWrappedFunctionNames: false
+
+# Braces - Rust style (same line for functions/structs)
+BreakBeforeBraces: Custom
+BraceWrapping:
+  AfterCaseLabel: false
+  AfterClass: false
+  AfterControlStatement: Never
+  AfterEnum: false
+  AfterFunction: false
+  AfterNamespace: false
+  AfterStruct: false
+  AfterUnion: false
+  AfterExternBlock: false
+  BeforeCatch: false
+  BeforeElse: false
+  BeforeLambdaBody: false
+  BeforeWhile: false
+  IndentBraces: false
+  SplitEmptyFunction: true
+  SplitEmptyRecord: true
+  SplitEmptyNamespace: true
+
+# Function and control flow formatting
+AllowShortFunctionsOnASingleLine: Empty
+AllowShortIfStatementsOnASingleLine: Never
+AllowShortLoopsOnASingleLine: false
+AllowShortBlocksOnASingleLine: Never
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortLambdasOnASingleLine: Empty
+
+# Alignment - keep things clean like Rust
+AlignAfterOpenBracket: Align
+AlignConsecutiveAssignments: None
+AlignConsecutiveDeclarations: None
+AlignConsecutiveMacros: None
+AlignEscapedNewlines: Left
+AlignOperands: Align
+AlignTrailingComments: true
+
+# Pointer and reference alignment (Rust style: left-aligned with type)
+PointerAlignment: Left
+ReferenceAlignment: Left
+DerivePointerAlignment: false
+
+# Spacing
+SpaceAfterCStyleCast: false
+SpaceAfterLogicalNot: false
+SpaceAfterTemplateKeyword: true
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeCpp11BracedList: false
+SpaceBeforeCtorInitializerColon: true
+SpaceBeforeInheritanceColon: true
+SpaceBeforeParens: ControlStatements
+SpaceBeforeRangeBasedForLoopColon: true
+SpaceInEmptyParentheses: false
+SpacesInAngles: false
+SpacesInCStyleCastParentheses: false
+SpacesInContainerLiterals: false
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+SpaceBeforeSquareBrackets: false
+
+# Line breaking
+AlwaysBreakAfterReturnType: None
+AlwaysBreakBeforeMultilineStrings: false
+AlwaysBreakTemplateDeclarations: Yes
+BreakBeforeBinaryOperators: None
+BreakBeforeTernaryOperators: true
+BreakConstructorInitializers: BeforeColon
+BreakInheritanceList: BeforeColon
+BreakStringLiterals: true
+
+# Bin packing and arguments
+BinPackArguments: false
+BinPackParameters: false
+
+# Constructor initializer and inheritance
+ConstructorInitializerIndentWidth: 4
+CompactNamespaces: false
+KeepEmptyLinesAtTheStartOfBlocks: false
+MaxEmptyLinesToKeep: 1
+
+# Include sorting - ExaConstit headers first, then TPLs, then stdlib
+# NOTE: clang-format will alphabetize within each priority group
+SortIncludes: CaseSensitive
+IncludeBlocks: Regroup
+IncludeCategories:
+  # ExaConstit project headers (quoted includes from project directories)
+  - Regex:           '^"(boundary_conditions|fem_operators|mfem_expt|models|options|postprocessing|sim_state|solvers|system_driver|umats|utilities)/'
+    Priority:        1
+  - Regex:           '^"(system_driver)'
+    Priority:        1
+  # Third-party library headers (RAJA, mfem, ecmech, snls, caliper)
+  - Regex:           '^"(RAJA|mfem|ecmech|snls|caliper)'
+    Priority:        2
+  # Standard C++ library (angle brackets, no file extension)
+  - Regex:           '^<[a-z_]+>$'
+    Priority:        3
+  # C standard library (angle brackets with .h extension)
+  - Regex:           '^<[a-z_]+\.h>$'
+    Priority:        3
+  # Catch-all for anything else
+  - Regex:           '.*'
+    Priority:        99
+
+# Namespace formatting
+NamespaceIndentation: None
+FixNamespaceComments: true
+
+# Penalties (for breaking decisions)
+PenaltyBreakAssignment: 100
+PenaltyBreakBeforeFirstCallParameter: 19
+PenaltyBreakComment: 300
+PenaltyBreakFirstLessLess: 120
+PenaltyBreakString: 1000
+PenaltyExcessCharacter: 1000000
+PenaltyReturnTypeOnItsOwnLine: 60
+
+# Misc
+ReflowComments: true
+SortUsingDeclarations: true

.git-blame-ignore-revs

@@ -0,0 +1,3 @@
+# .git-blame-ignore-revs
+# First clang-format run so lots of changes...
+fec3a715e3c8c9e86a92c03f8e6501ad58bbe68f

.github/workflows/build-ecmech/action.yml

@@ -17,7 +17,7 @@ runs:
   steps:
     - name: Install ECMech
       run: |
-        git clone --single-branch --branch v0.4.1 --depth 1 ${{ inputs.ecmech-repo }} ${{ inputs.ecmech-dir }};
+        git clone --single-branch --branch v0.4.3 --depth 1 ${{ inputs.ecmech-repo }} ${{ inputs.ecmech-dir }};
         cd ${{ inputs.ecmech-dir }};
         git submodule init;
         git submodule update;

.github/workflows/build-mfem/action.yml

@@ -39,6 +39,7 @@ runs:
               -DMFEM_USE_CUDA=OFF \
               -DMFEM_USE_OPENMP=OFF \
               -DMFEM_USE_RAJA=ON -DRAJA_DIR=${{ inputs.raja-dir }} \
+              -DCMAKE_CXX_STANDARD=17 \
               -DCMAKE_BUILD_TYPE=Release
         make -j3;
         make install;

.github/workflows/build-raja/action.yml

@@ -14,7 +14,7 @@ runs:
   steps:
     - name: Install RAJA
       run: |
-        git clone --single-branch --branch v2024.07.0 --depth 1 ${{ inputs.raja-repo }} ${{ inputs.raja-dir }};
+        git clone --single-branch --branch v2025.09.1 --depth 1 ${{ inputs.raja-repo }} ${{ inputs.raja-dir }};
         cd ${{ inputs.raja-dir }};
         git submodule init;
         git submodule update;

.github/workflows/build.yml

@@ -53,17 +53,20 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install numpy
+        pip install numpy pandas toml
 
     # Only get MPI if defined for the job.
     # TODO: It would be nice to have only one step, e.g. with a dedicated
     # action, but I (@adrienbernede) don't see how at the moment.
     - name: get MPI (Linux)
       if: matrix.mpi == 'parallel' && matrix.os == 'ubuntu-latest'
       run: |
-        sudo apt-get install mpich libmpich-dev
-        export MAKE_CXX_FLAG="MPICXX=mpic++"
-
+        sudo apt-get install openmpi-bin libopenmpi-dev
+        # Set MPI oversubscription globally for the job
+        echo "OMPI_MCA_rmaps_base_oversubscribe=1" >> $GITHUB_ENV
+        echo "OMPI_MCA_btl_vader_single_copy_mechanism=none" >> $GITHUB_ENV
+        echo "OMPI_MCA_btl_base_warn_component_unused=0" >> $GITHUB_ENV
+    # export MAKE_CXX_FLAG="MPICXX=mpic++"
     # Get RAJA through cache, or build it.
     # Install will only run on cache miss.
     - name: cache raja
@@ -72,7 +75,7 @@ jobs:
       uses: actions/cache@v4
       with:
         path: ${{ env.RAJA_TOP_DIR }}
-        key: ${{ runner.os }}-build-${{ env.RAJA_TOP_DIR }}-v2.02
+        key: ${{ runner.os }}-build-${{ env.RAJA_TOP_DIR }}-v2.03
 
     - name: get raja
       if: matrix.mpi == 'parallel' && steps.raja-cache.outputs.cache-hit != 'true'
@@ -88,7 +91,7 @@ jobs:
       uses: actions/cache@v4
       with:
         path: ${{ env.ECMECH_TOP_DIR }}
-        key: ${{ runner.os }}-build-${{ env.ECMECH_TOP_DIR }}-v2.02
+        key: ${{ runner.os }}-build-${{ env.ECMECH_TOP_DIR }}-v2.04
 
     - name: get ecmech
       if: matrix.mpi == 'parallel' && steps.ecmech-cache.outputs.cache-hit != 'true'
@@ -140,7 +143,7 @@ jobs:
       uses: actions/cache@v4
       with:
         path: ${{ env.MFEM_TOP_DIR }}
-        key: ${{ runner.os }}-build-${{ env.MFEM_TOP_DIR }}-v2.04
+        key: ${{ runner.os }}-build-${{ env.MFEM_TOP_DIR }}-v2.06
 
     - name: install mfem
       if: matrix.mpi == 'parallel' && steps.mfem-cache.outputs.cache-hit != 'true'
@@ -164,4 +167,13 @@ jobs:
     - name: cmake unit tests
       if: matrix.build-system == 'cmake'
       run: |
-        cd ${{ github.workspace }}/build/ && ctest --output-on-failure
+        cd ${{ github.workspace }}/build/
+        # Ensure MPI settings are active
+        export OMPI_MCA_rmaps_base_oversubscribe=1
+        export OMPI_MCA_btl_vader_single_copy_mechanism=none
+        # Run tests with better output
+        ctest --output-on-failure --verbose
+      env:
+        OMPI_MCA_rmaps_base_oversubscribe: 1
+        OMPI_MCA_btl_vader_single_copy_mechanism: none
+        OMPI_MCA_btl_base_warn_component_unused: 0