8.2.5 : Solving the performance problem

• 8.2.5.1) The reduction.h file
• 8.2.5.2) The reduction.cpp file
• 8.2.5.3) The main_reduction.cpp file
• 8.2.5.4) The CMakeLists.txt file
• 8.2.5.5) The compilation
• 8.2.5.6) The performances

We are going to create two files :

• reduction.h the header file of our reduction function.
• reduction.cpp the source file of our reduction function.