make uwuw optional (#2965)

CMakeLists.txt

@@ -39,6 +39,7 @@ option(OPENMC_USE_LIBMESH     "Enable support for libMesh unstructured mesh tall
 option(OPENMC_USE_MPI         "Enable MPI"                                           OFF)
 option(OPENMC_USE_MCPL        "Enable MCPL"                                          OFF)
 option(OPENMC_USE_NCRYSTAL    "Enable support for NCrystal scattering"               OFF)
+option(OPENMC_USE_UWUW        "Enable UWUW"                                          OFF)
 
 # Warnings for deprecated options
 foreach(OLD_OPT IN ITEMS "openmp" "profile" "coverage" "dagmc" "libmesh")
@@ -125,10 +126,15 @@ endif()
 if(OPENMC_USE_DAGMC)
   find_package(DAGMC REQUIRED PATH_SUFFIXES lib/cmake)
   if (${DAGMC_VERSION} VERSION_LESS 3.2.0)
-    message(FATAL_ERROR "Discovered DAGMC Version: ${DAGMC_VERSION}. \
-    Please update DAGMC to version 3.2.0 or greater.")
+    message(FATAL_ERROR "Discovered DAGMC Version: ${DAGMC_VERSION}."
+      "Please update DAGMC to version 3.2.0 or greater.")
   endif()
   message(STATUS "Found DAGMC: ${DAGMC_DIR} (version ${DAGMC_VERSION})")
+
+  # Check if UWUW is needed and available
+  if(OPENMC_USE_UWUW AND NOT DAGMC_BUILD_UWUW)
+    message(FATAL_ERROR "UWUW is enabled but DAGMC was not configured with UWUW.")
+  endif()
 endif()
 
 #===============================================================================
@@ -510,7 +516,7 @@ endif()
 
 if(OPENMC_USE_DAGMC)
   target_compile_definitions(libopenmc PRIVATE DAGMC)
-  target_link_libraries(libopenmc dagmc-shared uwuw-shared)
+  target_link_libraries(libopenmc dagmc-shared)
 endif()
 
 if(OPENMC_USE_LIBMESH)
@@ -547,6 +553,11 @@ if(OPENMC_USE_NCRYSTAL)
   target_link_libraries(libopenmc NCrystal::NCrystal)
 endif()
 
+if (OPENMC_USE_UWUW)
+  target_compile_definitions(libopenmc PRIVATE UWUW)
+  target_link_libraries(libopenmc uwuw-shared)
+endif()
+
 #===============================================================================
 # Log build info that this executable can report later
 #===============================================================================

cmake/OpenMCConfig.cmake.in

@@ -38,3 +38,7 @@ endif()
 if(@OPENMC_USE_MCPL@)
   find_package(MCPL REQUIRED)
 endif()
+
+if(@OPENMC_USE_UWUW@)
+  find_package(UWUW REQUIRED)
+endif()

include/openmc/dagmc.h

@@ -3,7 +3,8 @@
 
 namespace openmc {
 extern "C" const bool DAGMC_ENABLED;
-}
+extern "C" const bool UWUW_ENABLED;
+} // namespace openmc
 
 // always include the XML interface header
 #include "openmc/xml_interface.h"
@@ -120,6 +121,12 @@ class DAGUniverse : public Universe {
   void write_uwuw_materials_xml(
     const std::string& outfile = "uwuw_materials.xml") const;
 
+  //! Assign a material to a cell from uwuw material library
+  //! \param[in] vol_handle The DAGMC material assignment string
+  //! \param[in] c The OpenMC cell to which the material is assigned
+  void uwuw_assign_material(
+    moab::EntityHandle vol_handle, std::unique_ptr<DAGCell>& c) const;
+
   //! Assign a material to a cell based
   //! \param[in] mat_string The DAGMC material assignment string
   //! \param[in] c The OpenMC cell to which the material is assigned

openmc/lib/__init__.py

@@ -54,6 +54,9 @@ def _libmesh_enabled():
 def _mcpl_enabled():
     return c_bool.in_dll(_dll, "MCPL_ENABLED").value
 
+def _uwuw_enabled():
+    return c_bool.in_dll(_dll, "UWUW_ENABLED").value
+
 
 from .error import *
 from .core import *

src/dagmc.cpp

@@ -11,7 +11,7 @@
 #include "openmc/settings.h"
 #include "openmc/string_utils.h"
 
-#ifdef DAGMC
+#ifdef UWUW
 #include "uwuw.hpp"
 #endif
 #include <fmt/core.h>
@@ -29,6 +29,12 @@ const bool DAGMC_ENABLED = true;
 const bool DAGMC_ENABLED = false;
 #endif
 
+#ifdef UWUW
+const bool UWUW_ENABLED = true;
+#else
+const bool UWUW_ENABLED = false;
+#endif
+
 } // namespace openmc
 
 #ifdef DAGMC
@@ -85,7 +91,6 @@ DAGUniverse::DAGUniverse(std::shared_ptr<moab::DagMC> dagmc_ptr,
 {
   set_id();
   init_metadata();
-  read_uwuw_materials();
   init_geometry();
 }
 
@@ -111,8 +116,6 @@ void DAGUniverse::initialize()
 
   init_metadata();
 
-  read_uwuw_materials();
-
   init_geometry();
 }
 
@@ -209,20 +212,7 @@ void DAGUniverse::init_geometry()
       c->material_.push_back(MATERIAL_VOID);
     } else {
       if (uses_uwuw()) {
-        // lookup material in uwuw if present
-        std::string uwuw_mat =
-          dmd_ptr->volume_material_property_data_eh[vol_handle];
-        if (uwuw_->material_library.count(uwuw_mat) != 0) {
-          // Note: material numbers are set by UWUW
-          int mat_number = uwuw_->material_library.get_material(uwuw_mat)
-                             .metadata["mat_number"]
-                             .asInt();
-          c->material_.push_back(mat_number);
-        } else {
-          fatal_error(fmt::format("Material with value '{}' not found in the "
-                                  "UWUW material library",
-            mat_str));
-        }
+        uwuw_assign_material(vol_handle, c);
       } else {
         legacy_assign_material(mat_str, c);
       }
@@ -439,11 +429,16 @@ void DAGUniverse::to_hdf5(hid_t universes_group) const
 
 bool DAGUniverse::uses_uwuw() const
 {
+#ifdef UWUW
   return uwuw_ && !uwuw_->material_library.empty();
+#else
+  return false;
+#endif // UWUW
 }
 
 std::string DAGUniverse::get_uwuw_materials_xml() const
 {
+#ifdef UWUW
   if (!uses_uwuw()) {
     throw std::runtime_error("This DAGMC Universe does not use UWUW materials");
   }
@@ -461,10 +456,14 @@ std::string DAGUniverse::get_uwuw_materials_xml() const
   ss << "</materials>";
 
   return ss.str();
+#else
+  fatal_error("DAGMC was not configured with UWUW.");
+#endif // UWUW
 }
 
 void DAGUniverse::write_uwuw_materials_xml(const std::string& outfile) const
 {
+#ifdef UWUW
   if (!uses_uwuw()) {
     throw std::runtime_error(
       "This DAGMC universe does not use UWUW materials.");
@@ -475,6 +474,9 @@ void DAGUniverse::write_uwuw_materials_xml(const std::string& outfile) const
   std::ofstream mats_xml(outfile);
   mats_xml << xml_str;
   mats_xml.close();
+#else
+  fatal_error("DAGMC was not configured with UWUW.");
+#endif
 }
 
 void DAGUniverse::legacy_assign_material(
@@ -536,6 +538,7 @@ void DAGUniverse::legacy_assign_material(
 
 void DAGUniverse::read_uwuw_materials()
 {
+#ifdef UWUW
   // If no filename was provided, don't read UWUW materials
   if (filename_ == "")
     return;
@@ -573,8 +576,35 @@ void DAGUniverse::read_uwuw_materials()
   for (pugi::xml_node material_node : root.children("material")) {
     model::materials.push_back(std::make_unique<Material>(material_node));
   }
+#else
+  fatal_error("DAGMC was not configured with UWUW.");
+#endif
 }
 
+void DAGUniverse::uwuw_assign_material(
+  moab::EntityHandle vol_handle, std::unique_ptr<DAGCell>& c) const
+{
+#ifdef UWUW
+  // read materials from uwuw material file
+  read_uwuw_materials();
+
+  // lookup material in uwuw if present
+  std::string uwuw_mat = dmd_ptr->volume_material_property_data_eh[vol_handle];
+  if (uwuw_->material_library.count(uwuw_mat) != 0) {
+    // Note: material numbers are set by UWUW
+    int mat_number = uwuw_->material_library.get_material(uwuw_mat)
+                       .metadata["mat_number"]
+                       .asInt();
+    c->material_.push_back(mat_number);
+  } else {
+    fatal_error(fmt::format("Material with value '{}' not found in the "
+                            "UWUW material library",
+      mat_str));
+  }
+#else
+  fatal_error("DAGMC was not configured with UWUW.");
+#endif
+}
 //==============================================================================
 // DAGMC Cell implementation
 //==============================================================================

src/output.cpp

@@ -318,6 +318,7 @@ void print_build_info()
   std::string coverage(n);
   std::string mcpl(n);
   std::string ncrystal(n);
+  std::string uwuw(n);
 
 #ifdef PHDF5
   phdf5 = y;
@@ -346,6 +347,9 @@ void print_build_info()
 #ifdef COVERAGEBUILD
   coverage = y;
 #endif
+#ifdef UWUW
+  uwuw = y;
+#endif
 
   // Wraps macro variables in quotes
 #define STRINGIFY(x) STRINGIFY2(x)
@@ -364,6 +368,7 @@ void print_build_info()
     fmt::print("NCrystal support:      {}\n", ncrystal);
     fmt::print("Coverage testing:      {}\n", coverage);
     fmt::print("Profiling flags:       {}\n", profiling);
+    fmt::print("UWUW support:          {}\n", uwuw);
   }
 }
 

tests/regression_tests/dagmc/refl/test.py

@@ -6,8 +6,8 @@
 from tests.testing_harness import PyAPITestHarness
 
 pytestmark = pytest.mark.skipif(
-    not openmc.lib._dagmc_enabled(),
-    reason="DAGMC CAD geometry is not enabled.")
+    not openmc.lib._uwuw_enabled(),
+    reason="UWUW is not enabled.")
 
 class UWUWTest(PyAPITestHarness):
     def __init__(self, *args, **kwargs):

tests/regression_tests/dagmc/uwuw/test.py

@@ -6,8 +6,8 @@
 from tests.testing_harness import PyAPITestHarness
 
 pytestmark = pytest.mark.skipif(
-    not openmc.lib._dagmc_enabled(),
-    reason="DAGMC CAD geometry is not enabled.")
+    not openmc.lib._uwuw_enabled(),
+    reason="UWUW is not enabled.")
 
 class UWUWTest(PyAPITestHarness):
     def __init__(self, *args, **kwargs):