CHORE(CORE): Pre-requisite prior to tackle the assembly module.

CMakeLists.txt

@@ -1,171 +1,104 @@
-cmake_minimum_required(VERSION 3.15)
+cmake_minimum_required(VERSION 3.20)
 
-set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
-
-# ------------------------------------------------------------
-#  OS Detection (CMake native)
-# ------------------------------------------------------------
-if(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
-    set(OS_PREFIX "arch-darwin")
-else()
-    set(OS_PREFIX "arch-linux")
-endif()
-
-# ------------------------------------------------------------
-#  Build type / PETSc configuration (Before project())
-# ------------------------------------------------------------
-if(NOT CMAKE_BUILD_TYPE OR CMAKE_BUILD_TYPE STREQUAL "Debug")
-    set(TARGET_PETSC_ARCH "${OS_PREFIX}-c-debug")
-    add_definitions(-DPETSC_USE_DEBUG)
-else()
-    set(TARGET_PETSC_ARCH "${OS_PREFIX}-c-opt")
-endif()
+project(cfem LANGUAGES C CXX)
 
 message(STATUS "Build Type: ${CMAKE_BUILD_TYPE}")
-message(STATUS "Requested PETSc Architecture: ${TARGET_PETSC_ARCH}")
+message(STATUS "Compiler CXX: ${CMAKE_CXX_COMPILER}")
 
-# LECTURE DEPUIS LE PRESET : On utilise ${PETSC_DIR}, pas $ENV{PETSC_DIR}
-if(NOT PETSC_DIR)
-    message(FATAL_ERROR "PETSC_DIR is not defined. Please use the CMakePresets generated by setup_env_dev.sh")
-endif()
-
-set(PETSC_PATH "${PETSC_DIR}/${TARGET_PETSC_ARCH}")
-set(ENV{PKG_CONFIG_PATH} "${PETSC_PATH}/lib/pkgconfig:$ENV{PKG_CONFIG_PATH}")
-
-find_package(PkgConfig REQUIRED)
+# ==============================================================================
+# IPO / LTO support detection
+# ==============================================================================
+include(CheckIPOSupported)
 
-pkg_get_variable(PETSC_CXX_RAW petsc cxxcompiler)
-pkg_get_variable(PETSC_PREFIX petsc prefix) 
-if(PETSC_CXX_RAW)
-    find_program(PETSC_CXX_ABS 
-        NAMES ${PETSC_CXX_RAW}
-        HINTS 
-            "${PETSC_PREFIX}/bin"
-            "${PETSC_DIR}/${TARGET_PETSC_ARCH}/bin"
-    )
+check_ipo_supported(RESULT ipo_supported)
 
-    if(PETSC_CXX_ABS)
-        set(CMAKE_CXX_COMPILER ${PETSC_CXX_ABS})
-        message(STATUS "SUCCESS: Forcing CXX Compiler from PETSc: ${PETSC_CXX_ABS}")
-    else()
-        message(FATAL_ERROR "Absolute path not found for ${PETSC_CXX_RAW}.")
-    endif()
+if(ipo_supported)
+    set(CMAKE_INTERPROCEDURAL_OPTIMIZATION_RELEASE ON)
+    message(STATUS "IPO/LTO enabled for Release builds")
+else()
+    message(STATUS "IPO/LTO not supported by this toolchain")
 endif()
 
-# ------------------------------------------------------------
-# Project Initialization
-# ------------------------------------------------------------
-project(cfem LANGUAGES C CXX)
-
-set(CMAKE_CXX_STANDARD 20)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-set(CMAKE_INTERPROCEDURAL_OPTIMIZATION_RELEASE ON)
-set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
+# ==============================================================================
+# HPC Optimization Target (Modern CMake)
+# ==============================================================================
+add_library(cfem_hpc_flags INTERFACE)
 
-# Flags spécifiques
-# set(CMAKE_CXX_FLAGS_ASAN "-O1 -g -fsanitize=address -fno-omit-frame-pointer" CACHE STRING "For intense debug/segmentation fault/ illegal memory acces")
-set(CMAKE_CXX_FLAGS_RELEASE "-O3 -flto -fopenmp-simd -march=native -ffp-contract=fast -fno-math-errno -DNDEBUG -DTEUCHOS_DEBUG_OFF" CACHE STRING "Flags for pure performance (HPC)" FORCE)
+# Release flags
+target_compile_options(cfem_hpc_flags INTERFACE 
+    $<$<CONFIG:Release>:-O3 -flto -fopenmp-simd -march=native -ffp-contract=fast -fno-math-errno>
+    $<$<CONFIG:Debug>:-O0 -g -fno-omit-frame-pointer>
+)
 
-if(TARGET_PETSC_ARCH STREQUAL "${OS_PREFIX}-c-debug")
-    set(APP_PROJECT_NAME cfem_app_dev)
-else()
-    set(APP_PROJECT_NAME cfem_app_opt)
-endif()
+# Debug macros management (PETSc, Teuchos, NDEBUG)
+target_compile_definitions(cfem_hpc_flags INTERFACE
+    $<$<CONFIG:Release>:NDEBUG TEUCHOS_DEBUG_OFF>
+    $<$<CONFIG:Debug>:PETSC_USE_DEBUG>
+)
 
-# ------------------------------------------------------------
-# PETSc & MPI
-# ------------------------------------------------------------
-pkg_search_module(PETSC REQUIRED IMPORTED_TARGET GLOBAL petsc)
+# ==============================================================================
+# Dependencies
+# ==============================================================================
 
-if(TARGET PkgConfig::PETSC)
-    find_library(PETSC_MPI_LIB NAMES mpi HINTS "${PETSC_PATH}/lib" NO_DEFAULT_PATH)
-
-    if(NOT TARGET PkgConfig::petsc)
-        add_library(PkgConfig::petsc ALIAS PkgConfig::PETSC)
-    endif()
+# PETSc
+if(NOT DEFINED PETSC_DIR OR NOT DEFINED PETSC_ARCH)
+    message(FATAL_ERROR "PETSC_DIR and PETSC_ARCH must be defined via CMakePresets.")
+endif()
 
-    target_link_libraries(PkgConfig::PETSC INTERFACE 
-        ${PETSC_LIBRARIES} 
-        ${PETSC_MPI_LIB}
-    )
+set(PETSC_PATH "${PETSC_DIR}/${PETSC_ARCH}")
+set(ENV{PKG_CONFIG_PATH} "${PETSC_PATH}/lib/pkgconfig:$ENV{PKG_CONFIG_PATH}")
 
-    # Make sure the path to libpetsc.so is known
-    target_link_directories(PkgConfig::PETSC INTERFACE "${PETSC_PATH}/lib")
-    target_include_directories(PkgConfig::PETSC INTERFACE ${PETSC_INCLUDE_DIRS})
+find_package(PkgConfig REQUIRED)
+pkg_search_module(PETSC REQUIRED IMPORTED_TARGET GLOBAL petsc)
 
-    message(STATUS "PETSc MPI library forced: ${PETSC_MPI_LIB}")
-endif()
+# MPI
+find_library(PETSC_MPI_LIB NAMES mpi HINTS "${PETSC_PATH}/lib" NO_DEFAULT_PATH)
+target_link_libraries(PkgConfig::PETSC INTERFACE ${PETSC_MPI_LIB})
 
-# ------------------------------------------------------------
-# Math Dependencies (GMP, MPFR, MPC) - MUST BE BEFORE SYMENGINE
-# ------------------------------------------------------------
+# Math Libraries (GMP, MPFR, MPC)
 find_library(GMP_LIB NAMES gmp REQUIRED)
 find_library(MPFR_LIB NAMES mpfr REQUIRED)
 find_library(MPC_LIB NAMES mpc REQUIRED)
 
-message(STATUS "Found GMP: ${GMP_LIB}")
-
-# ------------------------------------------------------------
-# Find SymEngine
-# ------------------------------------------------------------
-# SymEngine_DIR is provided by the CMakePresets
+# SymEngine
 find_package(SymEngine REQUIRED CONFIG)
-
 if(SymEngine_FOUND)
     message(STATUS "Found SymEngine version: ${SymEngine_VERSION}")
 
     if(TARGET symengine)
-        target_link_libraries(symengine INTERFACE ${GMP_LIB} ${MPFR_LIB})
+        target_link_libraries(symengine INTERFACE ${GMP_LIB} ${MPFR_LIB} ${MPC_LIB})
         add_library(SymEngine::libsymengine ALIAS symengine)
     elseif(TARGET libsymengine)
-        target_link_libraries(libsymengine INTERFACE ${GMP_LIB} ${MPFR_LIB})
+        target_link_libraries(libsymengine INTERFACE ${GMP_LIB} ${MPFR_LIB} ${MPC_LIB})
         add_library(SymEngine::libsymengine ALIAS libsymengine)
     endif()
 endif()
 
-# ------------------------------------------------------------
-# Find LLVM
-# ------------------------------------------------------------
-# Once SymEngine is found, we need LLVM. SymEngine is statically linked.
+# LLVM
 find_package(LLVM REQUIRED CONFIG)
 if(LLVM_FOUND)
-    llvm_map_components_to_libnames(llvm_libs 
-        core mcjit orcjit native ipo bitreader target mc support
-    )
-    set(LLVM_SYSTEM_LIBS z zstd dl pthread m ffi tinfo)
+    llvm_map_components_to_libnames(llvm_libs core mcjit orcjit native ipo bitreader target mc support)
     message(STATUS "Found LLVM ${LLVM_PACKAGE_VERSION}")
-    message(STATUS "LLVM include dirs: ${LLVM_INCLUDE_DIRS}")
 endif()
 
-# ------------------------------------------------------------
-# Find OpenMP
-# ------------------------------------------------------------
+# OpenMP
 find_package(OpenMP REQUIRED)
 if(OpenMP_CXX_FOUND)
-    message(STATUS "Found OpenMP")
-endif()
-
-if(OpenMP_CXX_FOUND)
-    message(STATUS "Found OpenMP: ${OpenMP_CXX_FLAGS}")
-
     add_library(cfem_openmp_interface INTERFACE)
-
     target_link_libraries(cfem_openmp_interface INTERFACE OpenMP::OpenMP_CXX)
-
     target_compile_definitions(cfem_openmp_interface INTERFACE WITH_OPENMP)
 endif()
 
-# ------------------------------------------------------------
-# Modular Libraries & Applications
-# ------------------------------------------------------------
+# ==============================================================================
+# Subdirectories
+# ==============================================================================
 add_subdirectory(libs)
 add_subdirectory(apps)
 
-# ------------------------------------------------------------
-# Testing / GoogleTest
-# ------------------------------------------------------------
+# ==============================================================================
+# Testing (GoogleTest)
+# ==============================================================================
 include(CTest)
-
 if(BUILD_TESTING)
     include(FetchContent)
     FetchContent_Declare(
@@ -176,23 +109,20 @@ if(BUILD_TESTING)
     set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
     FetchContent_MakeAvailable(googletest)
 
-    include(GoogleTest)
     add_subdirectory(tests)
 endif()
 
 # ==============================================================================
 # Git Hooks Configuration
 # ==============================================================================
-# Automatically configure Git to use the custom hooks directory if it exists
 if(EXISTS "${CMAKE_SOURCE_DIR}/.githooks")
     execute_process(
         COMMAND git config core.hooksPath .githooks
         WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
         RESULT_VARIABLE GIT_HOOKS_RESULT
-        OUTPUT_QUIET
-        ERROR_QUIET
+        OUTPUT_QUIET ERROR_QUIET
     )
     if(GIT_HOOKS_RESULT EQUAL 0)
         message(STATUS "Git hooks correctly configured to use .githooks/")
     endif()
-endif()
+endif()

CMakePresets.json

@@ -2,15 +2,20 @@
   "version": 3,
   "cmakeMinimumRequired": {
     "major": 3,
-    "minor": 15,
+    "minor": 20,
     "patch": 0
   },
   "configurePresets": [
     {
       "name": "base",
       "hidden": true,
       "generator": "Unix Makefiles",
-      "binaryDir": "${sourceDir}/build_${presetName}"
+      "binaryDir": "${sourceDir}/build_${presetName}",
+      "cacheVariables": {
+        "CMAKE_EXPORT_COMPILE_COMMANDS": "ON",
+        "CMAKE_CXX_STANDARD": "20",
+        "CMAKE_CXX_STANDARD_REQUIRED": "ON"
+      }
     },
     {
       "name": "shared-release",

CMakeUserPresets.example.json

@@ -1,23 +1,55 @@
+//************************************************************************
+// --- CFEM++ Library
+// ---
+// --- Copyright 2024-2026 Ismaël Tchinda Ngueyong et al.
+// --- ALL RIGHTS RESERVED
+// ---
+// --- This software is protected by international copyright laws.
+// --- Use, distribution, or modification of this software in any form,
+// --- source or binary, for personal, academic, or non-commercial 
+// --- purposes is permitted free of charge, provided that this 
+// --- copyright notice and this permission notice appear in all 
+// --- copies and supporting documentation.
+// ---
+// --- The authors and contributors provide this code "as is" without 
+// --- any express or implied warranty. In no event shall they be 
+// --- held liable for any damages arising from the use of this software.
+//************************************************************************
+
 {
   "version": 3,
   "configurePresets": [
     {
       "name": "user-paths",
       "hidden": true,
+      "description": "REPLACE THE PATHS BELOW WITH YOUR OWN LOCAL INSTALLATION PATHS",
+      "environment": {
+        "MY_PETSC_DIR": "/path/to/your/petsc/installation"
+      },
       "cacheVariables": {
-        "PETSC_DIR": "/PATH/TO/YOUR/PETSC/INSTALLATION",
-        "SymEngine_DIR": "/PATH/TO/YOUR/SYMENGINE/build_${presetName}"
+        "PETSC_DIR": "$env{MY_PETSC_DIR}",
+        "SymEngine_DIR": "/path/to/your/symengine/build_release"
       }
     },
     {
       "name": "debug",
       "inherits": ["shared-debug", "user-paths"],
-      "displayName": "My Local Debug"
+      "displayName": "Local Debug",
+      "description": "Note: Change 'arch-linux-c-debug' to 'arch-darwin-c-debug' if you are on macOS",
+      "cacheVariables": {
+        "CMAKE_C_COMPILER": "$env{MY_PETSC_DIR}/arch-linux-c-debug/bin/mpicc",
+        "CMAKE_CXX_COMPILER": "$env{MY_PETSC_DIR}/arch-linux-c-debug/bin/mpicxx"
+      }
     },
     {
       "name": "release",
       "inherits": ["shared-release", "user-paths"],
-      "displayName": "My Local Release"
+      "displayName": "Local Release",
+      "description": "Note: Change 'arch-linux-c-opt' to 'arch-darwin-c-opt' if you are on macOS",
+      "cacheVariables": {
+        "CMAKE_C_COMPILER": "$env{MY_PETSC_DIR}/arch-linux-c-opt/bin/mpicc",
+        "CMAKE_CXX_COMPILER": "$env{MY_PETSC_DIR}/arch-linux-c-opt/bin/mpicxx"
+      }
     }
   ]
 }

apps/CMakeLists.txt

@@ -1,27 +1,8 @@
-# apps/CMakeLists.txt
-
-# Define the main simulation executable
-# add_executable(${APP_PROJECT_NAME} 
-#     main.cpp
-# )
-
-# Link against the solver library
-# This automatically pulls in fem, mesh, wrappers, and PETSc
-# target_link_libraries(${APP_PROJECT_NAME}
-#     PRIVATE
-#         cfem_solvers
-#         cfem_utils
-#         cfem_mesh
-#         cfem_fields
-#         cfem_exporter
-#         cfem_expressions
-#         cfem_petsc_wrappers
-#         # --- LA RÉSOLUTION DU PROBLÈME EST ICI ---
-#         SymEngine::libsymengine
-#         ${llvm_libs}
-#         dl     # Souvent requis par LLVM sur Linux
-#         z      # Souvent requis par LLVM sur Linux
-# )
+if(CMAKE_BUILD_TYPE STREQUAL "Debug")
+    set(APP_PROJECT_NAME cfem_app_dev)
+else()
+    set(APP_PROJECT_NAME cfem_app_opt)
+endif()
 
 add_executable(${APP_PROJECT_NAME} main.cpp)
 

scripts/setup_env_dev.sh

@@ -311,17 +311,25 @@ else
     {
       "name": "debug",
       "inherits": ["shared-debug", "user-paths"],
-      "displayName": "My Local Debug"
+      "displayName": "My Local Debug",
+      "cacheVariables": {
+        "CMAKE_C_COMPILER": "$PETSC_DIR/${OS_PREFIX}-c-debug/bin/mpicc",
+        "CMAKE_CXX_COMPILER": "$PETSC_DIR/${OS_PREFIX}-c-debug/bin/mpicxx"
+      }
     },
     {
       "name": "release",
       "inherits": ["shared-release", "user-paths"],
-      "displayName": "My Local Release"
+      "displayName": "My Local Release",
+      "cacheVariables": {
+        "CMAKE_C_COMPILER": "$PETSC_DIR/${OS_PREFIX}-c-opt/bin/mpicc",
+        "CMAKE_CXX_COMPILER": "$PETSC_DIR/${OS_PREFIX}-c-opt/bin/mpicxx"
+      }
     }
   ]
 }
 EOF
-    echo -e "${GREEN}[OK] Presets generated.${NC}"
+    echo -e "${GREEN}[OK] Presets generated with MPI compilers.${NC}"
 fi
 
 # ------------------------------------------------------------