numRefinement

Author: DENEL Bertrand

src/coreComponents/mesh/mpiCommunications/GraphPartitionEngine.hpp

@@ -110,6 +110,13 @@ class GraphPartitionEngine : public dataRepository::Group
    */
   virtual int getNumRefinements() const = 0;
 
+  /**
+   * @brief Set the number of refinement iterations
+   *
+   * @param numRefinements Number of refinement iterations
+   */
+  virtual void setNumRefinements( int numRefinements ) = 0;
+
   /**
    * @brief Accessor for the singleton Catalog object
    *

src/coreComponents/mesh/mpiCommunications/MeshPartitioner.cpp

@@ -229,6 +229,11 @@ void MeshPartitioner::postInputInitialization()
 
   GEOS_ERROR_IF( engine == nullptr,
                  "Failed to create graph partition engine for " << getCatalogName() );
+
+  if( m_numRefinements > 0 )
+  {
+    engine->setNumRefinements( m_numRefinements );
+  }
 }
 
 GraphPartitionEngine * MeshPartitioner::createDefaultEngine()

src/coreComponents/mesh/mpiCommunications/NoOpEngine.hpp

@@ -101,6 +101,15 @@ class NoOpEngine : public GraphPartitionEngine
    * @brief Get the number of refinement iterations
    */
   int getNumRefinements() const override { return 0; }
+
+  /**
+   * @brief Set the number of refinement iterations (no-op)
+   * @param numRefinements Number of refinement iterations (ignored)
+   */
+  void setNumRefinements( int const numRefinements ) override
+  {
+    // NoOp engine ignores refinements
+  }
 };
 
 } // namespace geos

src/coreComponents/mesh/mpiCommunications/PTScotchEngine.hpp

@@ -103,6 +103,16 @@ class PTScotchEngine : public GraphPartitionEngine
    */
   int getNumRefinements() const override { return 0; }
 
+  /**
+   * @brief Set the number of refinement iterations
+   * @param numRefinements Number of refinement iterations (ignored by PT-Scotch)
+   */
+  void setNumRefinements( int const numRefinements ) override
+  {
+    // PT-Scotch doesn't support refinements like ParMETIS
+    // Silently ignore this parameter
+  }
+
   /**
    * @brief Set the partitioning strategy
    * @param strategy Strategy string (e.g., "default", "quality", "speed")

src/coreComponents/mesh/mpiCommunications/ParMetisEngine.hpp

@@ -128,7 +128,7 @@ class ParMetisEngine : public GraphPartitionEngine
    * @brief Set the number of refinement iterations
    * @param numRefinements Number of refinement iterations
    */
-  void setNumRefinements( int const numRefinements )
+  void setNumRefinements( int const numRefinements ) override
   {
     GEOS_ERROR_IF( numRefinements < 0, "Number of refinements must be non-negative" );
     m_numRefinements = numRefinements;