Previous
The CMakeLists.txt file		 Parent
Optimisation of Hadamard product		 Outline Next
The first performances

Chapter 6.4 : Get the performances

Let's call CMake : 
-- The C compiler identification is GNU 7.2.0
-- The CXX compiler identification is GNU 7.2.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works                                                                                                                                 
-- Detecting CXX compiler ABI info                                                                                                                                                       
-- Detecting CXX compiler ABI info - done                                                                                                                                                
-- Detecting CXX compile features                                                                                                                                                        
-- Detecting CXX compile features - done                                                                                                                                                 
-- Configuring done                                                                                                                                                                      
-- Generating done                                                                                                                                                                       
-- Build files have been written to: ExampleOptimisation/build
We compile the programs : 
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$ make
Scanning dependencies of target hadamard_product_Ofast
[ 10%] Building CXX object 1-HadamardProduct/CMakeFiles/hadamard_product_Ofast.dir/main.cpp.o
[ 20%] Linking CXX executable hadamard_product_Ofast
[ 20%] Built target hadamard_product_Ofast
Scanning dependencies of target hadamard_product_O3
[ 30%] Building CXX object 1-HadamardProduct/CMakeFiles/hadamard_product_O3.dir/main.cpp.o
[ 40%] Linking CXX executable hadamard_product_O3
[ 40%] Built target hadamard_product_O3
Scanning dependencies of target hadamard_product_O0
[ 50%] Building CXX object 1-HadamardProduct/CMakeFiles/hadamard_product_O0.dir/main.cpp.o
[ 60%] Linking CXX executable hadamard_product_O0
[ 60%] Built target hadamard_product_O0
Scanning dependencies of target hadamard_product_O1
[ 70%] Building CXX object 1-HadamardProduct/CMakeFiles/hadamard_product_O1.dir/main.cpp.o
[ 80%] Linking CXX executable hadamard_product_O1
[ 80%] Built target hadamard_product_O1
Scanning dependencies of target hadamard_product_O2
[ 90%] Building CXX object 1-HadamardProduct/CMakeFiles/hadamard_product_O2.dir/main.cpp.o
[100%] Linking CXX executable hadamard_product_O2
[100%] Built target hadamard_product_O2
We run the programs : 
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$ make run_all
[ 13%] Built target hadamard_product_O2
Scanning dependencies of target run_hadamard_product_O2
[ 20%] Run hadamard_product_O2 program
Hadamard product
evaluateHadamardProduct : nbElement = 1000, cyclePerElement = 1.147 cy/el, elapsedTime = 1147 cy
evaluateHadamardProduct : nbElement = 2000, cyclePerElement = 1.137 cy/el, elapsedTime = 2274 cy
evaluateHadamardProduct : nbElement = 3000, cyclePerElement = 1.18133 cy/el, elapsedTime = 3544 cy
evaluateHadamardProduct : nbElement = 5000, cyclePerElement = 1.262 cy/el, elapsedTime = 6310 cy
evaluateHadamardProduct : nbElement = 10000, cyclePerElement = 1.2649 cy/el, elapsedTime = 12649 cy
[ 20%] Built target run_hadamard_product_O2
[ 33%] Built target hadamard_product_Ofast
Scanning dependencies of target run_hadamard_product_Ofast
[ 40%] Run hadamard_product_Ofast program
Hadamard product
evaluateHadamardProduct : nbElement = 1000, cyclePerElement = 0.444 cy/el, elapsedTime = 444 cy
evaluateHadamardProduct : nbElement = 2000, cyclePerElement = 0.38 cy/el, elapsedTime = 760 cy
evaluateHadamardProduct : nbElement = 3000, cyclePerElement = 0.436333 cy/el, elapsedTime = 1309 cy
evaluateHadamardProduct : nbElement = 5000, cyclePerElement = 0.475 cy/el, elapsedTime = 2375 cy
evaluateHadamardProduct : nbElement = 10000, cyclePerElement = 0.4786 cy/el, elapsedTime = 4786 cy
[ 40%] Built target run_hadamard_product_Ofast
[ 53%] Built target hadamard_product_O3
Scanning dependencies of target run_hadamard_product_O3
[ 60%] Run hadamard_product_O3 program
Hadamard product
evaluateHadamardProduct : nbElement = 1000, cyclePerElement = 0.471 cy/el, elapsedTime = 471 cy
evaluateHadamardProduct : nbElement = 2000, cyclePerElement = 0.389 cy/el, elapsedTime = 778 cy
evaluateHadamardProduct : nbElement = 3000, cyclePerElement = 0.412 cy/el, elapsedTime = 1236 cy
evaluateHadamardProduct : nbElement = 5000, cyclePerElement = 0.4628 cy/el, elapsedTime = 2314 cy
evaluateHadamardProduct : nbElement = 10000, cyclePerElement = 0.4784 cy/el, elapsedTime = 4784 cy
[ 60%] Built target run_hadamard_product_O3
[ 73%] Built target hadamard_product_O0
Scanning dependencies of target run_hadamard_product_O0
[ 80%] Run hadamard_product_O0 program
Hadamard product
evaluateHadamardProduct : nbElement = 1000, cyclePerElement = 7.076 cy/el, elapsedTime = 7076 cy
evaluateHadamardProduct : nbElement = 2000, cyclePerElement = 7.1175 cy/el, elapsedTime = 14235 cy
evaluateHadamardProduct : nbElement = 3000, cyclePerElement = 7.089 cy/el, elapsedTime = 21267 cy
evaluateHadamardProduct : nbElement = 5000, cyclePerElement = 7.0184 cy/el, elapsedTime = 35092 cy
evaluateHadamardProduct : nbElement = 10000, cyclePerElement = 6.9753 cy/el, elapsedTime = 69753 cy
[ 80%] Built target run_hadamard_product_O0
[ 93%] Built target hadamard_product_O1
Scanning dependencies of target run_hadamard_product_O1
[100%] Run hadamard_product_O1 program
Hadamard product
evaluateHadamardProduct : nbElement = 1000, cyclePerElement = 1.186 cy/el, elapsedTime = 1186 cy
evaluateHadamardProduct : nbElement = 2000, cyclePerElement = 1.162 cy/el, elapsedTime = 2324 cy
evaluateHadamardProduct : nbElement = 3000, cyclePerElement = 1.193 cy/el, elapsedTime = 3579 cy
evaluateHadamardProduct : nbElement = 5000, cyclePerElement = 1.3002 cy/el, elapsedTime = 6501 cy
evaluateHadamardProduct : nbElement = 10000, cyclePerElement = 1.2749 cy/el, elapsedTime = 12749 cy
[100%] Built target run_hadamard_product_O1
Scanning dependencies of target run_all
[100%] Built target run_all
Now, we can make the plots : 
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$ make plot_all
[ 12%] Built target hadamard_product_O2
[ 25%] Built target hadamard_product_Ofast
[ 37%] Built target hadamard_product_O3
[ 50%] Built target hadamard_product_O0
[ 62%] Built target hadamard_product_O1
Scanning dependencies of target plot_hadamardBase
[ 68%] Call gnuplot hadamardBase
[100%] Built target plot_hadamardBase
Scanning dependencies of target plot_all
[100%] Built target plot_all
Previous
The CMakeLists.txt file		 Parent
Optimisation of Hadamard product		 Outline Next
The first performances