diff --git a/.github/workflows/cmake-multi-platform.yml b/.github/workflows/cmake-multi-platform.yml
index cf8c92d..0758e97 100644
--- a/.github/workflows/cmake-multi-platform.yml
+++ b/.github/workflows/cmake-multi-platform.yml
@@ -79,7 +79,10 @@ jobs:
       run: ${{github.workspace}}/build/main
     
     - name: Run example
-      run: ${{github.workspace}}/build/simple
+      run: ${{github.workspace}}/build/matrix_eigen
+    
+    - name: Run example
+      run: ${{github.workspace}}/build/loop_omp
 
     # - name: Test
     #   working-directory: ${{ steps.strings.outputs.build-output-dir }}
diff --git a/.gitignore b/.gitignore
index a20d21e..3446d93 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,4 +20,8 @@ debug
 
 # Compiled Static libraries
 *.a
-*.lib
\ No newline at end of file
+*.lib
+
+# VIM Tampon file 
+*.swp
+*.swo
diff --git a/CMakeLists.txt b/CMakeLists.txt
index b7d462c..578f557 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,25 +5,23 @@ set(CMAKE_CXX_STANDARD 14) # specifying the C++ Standard
 set(GCC_COVERAGE_COMPILE_FLAGS "-Wall -Wextra -pedantic") # probably not the best variable name
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${GCC_COVERAGE_COMPILE_FLAGS}")
 
-set(CMAKE_CXX_FLAGS_RELEASE "-O3 -march=native -funroll-loops -funroll-all-loops -DNDEBUG")
+set(CMAKE_CXX_FLAGS_RELEASE "-O3 -march=native -DNDEBUG")
 set(CMAKE_CXX_FLAGS_DEBUG "-g -fsanitize=address,undefined")
 
-# include_directories(include)
-
-# OpenMP
-find_package(OpenMP)
-if(OpenMP_CXX_FOUND)
-    set(LINK_LIBS ${LINK_LIBS} ${OpenMP_CXX_LIBRARIES})
-endif()
-
 # Eigen
 find_package(Eigen3 3.3 REQUIRED NO_MODULE)
 set(LINK_LIBS ${LINK_LIBS} Eigen3::Eigen)
 
-
 # Executables
 add_executable(main examples/main.cpp) # create an executable using the specified file
 target_link_libraries(main PUBLIC ${LINK_LIBS})
 
-add_executable(simple examples/simple.cpp) # create an executable using the specified file
-target_link_libraries(simple PUBLIC ${LINK_LIBS})
\ No newline at end of file
+add_executable(matrix_eigen examples/matrix_eigen.cpp) # create an executable using the specified file
+target_link_libraries(matrix_eigen PUBLIC ${LINK_LIBS})
+
+find_package(OpenMP)
+if(OPENMP_FOUND)
+  add_executable(loop_omp examples/loop_omp.cpp) # create an executable using the specified file
+  target_compile_options(loop_omp PUBLIC ${OpenMP_CXX_FLAGS})
+  target_link_libraries(loop_omp PUBLIC ${LINK_LIBS} OpenMP::OpenMP_CXX)
+endif()
diff --git a/examples/loop_omp.cpp b/examples/loop_omp.cpp
new file mode 100644
index 0000000..ffdf07f
--- /dev/null
+++ b/examples/loop_omp.cpp
@@ -0,0 +1,29 @@
+#include <iostream>
+#include <vector>
+#include <omp.h>
+
+int main() {
+    // Initialisation d'un grand tableau pour simuler une charge de travail
+    const int N = 1000000;
+    std::vector<int> tab(N, 1); // Crée un tableau avec des valeurs de 1
+    int sum = 0;
+
+    // Mesurer le temps avant le calcul
+    double start_time = omp_get_wtime();
+
+    // Début de la région parallèle
+    #pragma omp parallel for reduction(+:sum)
+    for (int i = 0; i < N; ++i) {
+        sum += tab[i];
+    }
+
+    // Mesurer le temps après le calcul
+    double end_time = omp_get_wtime();
+
+    // Résultats
+    std::cout << "La somme est: " << sum << std::endl;
+    std::cout << "Temps d'exécution avec OpenMP: " << (end_time - start_time) << " secondes" << std::endl;
+
+    return 0;
+}
+
diff --git a/examples/simple.cpp b/examples/matrix_eigen.cpp
similarity index 100%
rename from examples/simple.cpp
rename to examples/matrix_eigen.cpp