Add APIs for name prefixing

include/systems/system.h

@@ -1927,6 +1927,22 @@ class System : public ReferenceCountedObject<System>,
    */
   void prefer_hash_table_matrix_assembly(bool preference);
 
+  /**
+   * Instructs this system to prefix solve options with its name for solvers that leverage prefixes
+   */
+  void prefix_with_name(bool value) { _prefix_with_name = value; }
+
+  /**
+   * @returns Whether we are name prefixing
+   */
+  [[nodiscard]] bool prefix_with_name() const { return _prefix_with_name; }
+
+  /**
+   * @returns A prefix that may be applied to solver options. Note that this
+   * prefix is only used if \p prefix_with_name()
+   */
+  std::string prefix() const { return this->name() + "_"; }
+
 protected:
 
   /**
@@ -2307,6 +2323,11 @@ class System : public ReferenceCountedObject<System>,
    * Whether any of our matrices require an initial sparsity pattern computation in order to determine preallocation
    */
   bool _require_sparsity_pattern;
+
+  /**
+   * Whether we are name prefixing solver options
+   */
+  bool _prefix_with_name;
 };
 
 

src/systems/continuation_system.C

@@ -65,8 +65,8 @@ ContinuationSystem::ContinuationSystem (EquationSystems & es,
   // moved.
   linear_solver = LinearSolver<Number>::build(es.comm());
 
-  if (libMesh::on_command_line("--solver-system-names"))
-    linear_solver->init((this->name()+"_").c_str());
+  if (this->prefix_with_name())
+    linear_solver->init(this->prefix().c_str());
   else
     linear_solver->init();
 

src/systems/implicit_system.C

@@ -1208,8 +1208,8 @@ LinearSolver<Number> * ImplicitSystem::get_linear_solver() const
 
   linear_solver = LinearSolver<Number>::build(this->comm());
 
-  if (libMesh::on_command_line("--solver-system-names"))
-    linear_solver->init((this->name() + "_").c_str());
+  if (this->prefix_with_name())
+    linear_solver->init(this->prefix().c_str());
   else
     linear_solver->init();
 

src/systems/linear_implicit_system.C

@@ -123,8 +123,8 @@ void LinearImplicitSystem::solve ()
     this->get_equation_systems();
 
   // If the linear solver hasn't been initialized, we do so here.
-  if (libMesh::on_command_line("--solver-system-names"))
-    linear_solver->init((this->name()+"_").c_str());
+  if (this->prefix_with_name())
+    linear_solver->init(this->prefix().c_str());
   else
     linear_solver->init();
 

src/systems/nonlinear_implicit_system.C

@@ -201,8 +201,8 @@ void NonlinearImplicitSystem::solve ()
     }
   else
     {
-      if (libMesh::on_command_line("--solver-system-names"))
-        nonlinear_solver->init((this->name()+"_").c_str());
+      if (this->prefix_with_name())
+        nonlinear_solver->init(this->prefix().c_str());
       else
         nonlinear_solver->init();
 

src/systems/system.C

@@ -99,8 +99,11 @@ System::System (EquationSystems & es,
   _hide_output                      (false),
   project_with_constraints          (true),
   _prefer_hash_table_matrix_assembly(false),
-  _require_sparsity_pattern         (false)
+  _require_sparsity_pattern         (false),
+  _prefix_with_name                 (false)
 {
+  if (libMesh::on_command_line("--solver-system-names"))
+    this->prefix_with_name(true);
 }