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The CMakeLists.txt file		 Parent
Let's swap the loops over j and k		 Outline Next
The performances

10.3.5 : The compilation

Let's compile : 
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$ make
-- Configuring done
-- Generating done
-- Build files have been written to: ExampleOptimisation/build
[  2%] Built target hadamard_product_O2
[  4%] Built target hadamard_product_O1
[  6%] Built target hadamard_product_vectorize
[  8%] Built target hadamard_product_O0
[  8%] Built target hadamard_product_O3
[ 10%] Built target hadamard_product_Ofast
[ 13%] Built target hadamard_product_intrinsics
[ 15%] Built target asterics_hpc
[ 17%] Built target saxpy_O2
[ 17%] Built target saxpy_O0
[ 19%] Built target saxpy_O3
[ 21%] Built target saxpy_O1
[ 23%] Built target saxpy_Ofast
[ 26%] Built target saxpy_vectorize
[ 26%] Built target saxpy_intrinsics
[ 28%] Built target reduction_real_O2
[ 30%] Built target reduction_real_intrinsics_interleave8_O3
[ 34%] Built target reduction_real_O1
[ 36%] Built target reduction_real_Ofast
[ 39%] Built target reduction_O0
[ 41%] Built target reduction_O1
[ 41%] Built target reduction_O2
[ 43%] Built target reduction_O3
[ 45%] Built target reduction_real_intrinsics_interleave4_O3
[ 47%] Built target reduction_real_vectorize_Ofast
[ 52%] Built target reduction_real_intrinsics_interleave2_O3
[ 54%] Built target reduction_real_intrinsics_O3
[ 56%] Built target reduction_real_O3
[ 58%] Built target reduction_real_O0
[ 60%] Built target reduction_real_vectorize_O3
[ 63%] Built target barycentre_intrinsics
[ 65%] Built target barycentre_base_O2
[ 67%] Built target barycentre_base_O1
[ 69%] Built target barycentre_base_O0
[ 71%] Built target barycentre_vectorizeSplit_O3
[ 76%] Built target barycentre_base_Ofast
[ 78%] Built target barycentre_base_O3
[ 80%] Built target barycentre_vectorize_O3
[ 84%] Built target sgemm_base_O1
[ 86%] Built target sgemm_base_Ofast
[ 89%] Built target sgemm_base_O3
[ 91%] Built target sgemm_base_O0
Scanning dependencies of target sgemm_swap_Ofast
[ 93%] Building CXX object 6-Sgemm/CMakeFiles/sgemm_swap_Ofast.dir/sgemm_swap.cpp.o
[ 93%] Building CXX object 6-Sgemm/CMakeFiles/sgemm_swap_Ofast.dir/main_sgemm_swap.cpp.o
[ 95%] Linking CXX executable sgemm_swap_Ofast
[ 95%] Built target sgemm_swap_Ofast
Scanning dependencies of target sgemm_swap_O3
[ 97%] Building CXX object 6-Sgemm/CMakeFiles/sgemm_swap_O3.dir/sgemm_swap.cpp.o
[ 97%] Building CXX object 6-Sgemm/CMakeFiles/sgemm_swap_O3.dir/main_sgemm_swap.cpp.o
[ 97%] Linking CXX executable sgemm_swap_O3
[ 97%] Built target sgemm_swap_O3
[100%] Built target sgemm_base_O2
Let's get the performances : 
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$ make plot_all
[  1%] Built target asterics_hpc
[  2%] Built target sgemm_swap_O3
[  3%] Built target sgemm_base_Ofast
[  4%] Built target sgemm_base_O3
[  7%] Built target sgemm_swap_Ofast
Scanning dependencies of target plot_sgemmSwap
[  7%] Run sgemm_swap_Ofast program
SGEMM Swap
evaluateSgemm : nbElement = 10, cyclePerElement = 15.69 cy/el, elapsedTime = 1569 cy
evaluateSgemm : nbElement = 20, cyclePerElement = 16.23 cy/el, elapsedTime = 6492 cy
evaluateSgemm : nbElement = 30, cyclePerElement = 23.3 cy/el, elapsedTime = 20970 cy
evaluateSgemm : nbElement = 50, cyclePerElement = 30.3024 cy/el, elapsedTime = 75756 cy
evaluateSgemm : nbElement = 80, cyclePerElement = 37.2161 cy/el, elapsedTime = 238183 cy
evaluateSgemm : nbElement = 100, cyclePerElement = 45.8609 cy/el, elapsedTime = 458609 cy
[  8%] Run sgemm_swap_O3 program
SGEMM Swap
evaluateSgemm : nbElement = 10, cyclePerElement = 14.94 cy/el, elapsedTime = 1494 cy
evaluateSgemm : nbElement = 20, cyclePerElement = 16.95 cy/el, elapsedTime = 6780 cy
evaluateSgemm : nbElement = 30, cyclePerElement = 22.7011 cy/el, elapsedTime = 20431 cy
evaluateSgemm : nbElement = 50, cyclePerElement = 28.504 cy/el, elapsedTime = 71260 cy
evaluateSgemm : nbElement = 80, cyclePerElement = 36.1014 cy/el, elapsedTime = 231049 cy
evaluateSgemm : nbElement = 100, cyclePerElement = 45.3551 cy/el, elapsedTime = 453551 cy
[  8%] Call gnuplot sgemmSwap
[  9%] Built target plot_sgemmSwap
[ 10%] Built target hadamard_product_intrinsics
[ 12%] Built target hadamard_product_vectorize
[ 12%] Built target hadamard_product_O3
[ 14%] Built target plot_hadamardIntrinsics
[ 15%] Built target hadamard_product_Ofast
[ 17%] Built target hadamard_product_O2
[ 18%] Built target hadamard_product_O1
[ 19%] Built target hadamard_product_O0
[ 21%] Built target plot_hadamardBase
[ 23%] Built target plot_hadamardVectorize
[ 23%] Built target saxpy_intrinsics
[ 24%] Built target saxpy_O3
[ 25%] Built target saxpy_vectorize
[ 28%] Built target plot_saxpyIntrinsics
[ 29%] Built target plot_saxpyVectorize
[ 30%] Built target saxpy_Ofast
[ 31%] Built target saxpy_O2
[ 31%] Built target saxpy_O0
[ 32%] Built target saxpy_O1
[ 35%] Built target plot_saxpyBase
[ 36%] Built target reduction_real_intrinsics_O3
[ 37%] Built target reduction_real_intrinsics_interleave8_O3
[ 39%] Built target reduction_real_Ofast
[ 40%] Built target reduction_real_intrinsics_interleave4_O3
[ 41%] Built target reduction_real_vectorize_Ofast
[ 43%] Built target reduction_real_intrinsics_interleave2_O3
[ 47%] Built target plot_reductionIntrinsicsInterleave8
[ 48%] Built target reduction_real_vectorize_O3
[ 50%] Built target reduction_real_O3
[ 52%] Built target plot_reductionVectorize
[ 53%] Built target reduction_O3
[ 54%] Built target reduction_O0
[ 56%] Built target reduction_O1
[ 56%] Built target reduction_O2
[ 58%] Built target plot_reductionBase
[ 59%] Built target reduction_real_O0
[ 60%] Built target reduction_real_O2
[ 63%] Built target reduction_real_O1
[ 67%] Built target plot_reductionReal
[ 69%] Built target plot_reductionIntrinsicsInterleave2
[ 71%] Built target plot_reductionIntrinsicsInterleave4
[ 74%] Built target plot_reductionIntrinsics
[ 75%] Built target barycentre_vectorize_O3
[ 76%] Built target barycentre_intrinsics
[ 78%] Built target barycentre_vectorizeSplit_O3
[ 79%] Built target barycentre_base_O3
[ 81%] Built target plot_barycentreIntrinsics
[ 82%] Built target barycentre_base_O2
[ 84%] Built target barycentre_base_O1
[ 85%] Built target barycentre_base_O0
[ 87%] Built target barycentre_base_Ofast
[ 90%] Built target plot_barycentreBase
[ 92%] Built target plot_barycentreVectorize
[ 93%] Built target sgemm_base_O2
[ 96%] Built target sgemm_base_O1
[ 97%] Built target sgemm_base_O0
[100%] Built target plot_sgemmBase
[100%] Built target plot_all
Previous
The CMakeLists.txt file		 Parent
Let's swap the loops over j and k		 Outline Next
The performances