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- make MatrixBase and all expressions aware of their preferred traversal order.

Browse Source 
Honor this preference in operator=.
- add several methods to the API
- rework API for diagonal matrices
- add benchmarking code
This commit is contained in:
Benoit Jacob
2008-01-05 10:57:14 +00:00
parent 23ffede3d0
commit d1d55e67e9
33 changed files with 354 additions and 84 deletions
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22
doc/benchmarkX.cpp Normal file
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// g++ -O3 -DNDEBUG benchmarkX.cpp -o benchmarkX && time ./benchmarkX
#include <Eigen/Core>
using namespace std;
USING_PART_OF_NAMESPACE_EIGEN
int main(int argc, char *argv[])
{
MatrixXd I = MatrixXd::identity(20);
MatrixXd m(20,20);
for(int i = 0; i < 20; i++) for(int j = 0; j < 20; j++)
{
m(i,j) = 0.1 * (i+20*j);
}
for(int a = 0; a < 1000000; a++)
{
m = I + 0.00005 * (m + m*m);
}
cout << m << endl;
return 0;
}

16
doc/benchmark_suite Executable file
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echo "Fixed size 3x3, ColumnMajor, -DNDEBUG"
g++ -O3 -I .. -DEIGEN_DEFAULT_MATRIX_STORAGE_ORDER=ColumnMajor -DNDEBUG benchmark.cpp -o benchmark && time ./benchmark >/dev/null
echo "Fixed size 3x3, ColumnMajor, with asserts"
g++ -O3 -I .. -DEIGEN_DEFAULT_MATRIX_STORAGE_ORDER=ColumnMajor benchmark.cpp -o benchmark && time ./benchmark >/dev/null
echo "Fixed size 3x3, RowMajor, -DNDEBUG"
g++ -O3 -I .. -DEIGEN_DEFAULT_MATRIX_STORAGE_ORDER=RowMajor -DNDEBUG benchmark.cpp -o benchmark && time ./benchmark >/dev/null
echo "Fixed size 3x3, RowMajor, with asserts"
g++ -O3 -I .. -DEIGEN_DEFAULT_MATRIX_STORAGE_ORDER=RowMajor benchmark.cpp -o benchmark && time ./benchmark >/dev/null
echo "Dynamic size 20x20, ColumnMajor, -DNDEBUG"
g++ -O3 -I .. -DEIGEN_DEFAULT_MATRIX_STORAGE_ORDER=ColumnMajor -DNDEBUG benchmarkX.cpp -o benchmarkX && time ./benchmarkX >/dev/null
echo "Dynamic size 20x20, ColumnMajor, with asserts"
g++ -O3 -I .. -DEIGEN_DEFAULT_MATRIX_STORAGE_ORDER=ColumnMajor benchmarkX.cpp -o benchmarkX && time ./benchmarkX >/dev/null
echo "Dynamic size 20x20, RowMajor, -DNDEBUG"
g++ -O3 -I .. -DEIGEN_DEFAULT_MATRIX_STORAGE_ORDER=RowMajor -DNDEBUG benchmarkX.cpp -o benchmarkX && time ./benchmarkX >/dev/null
echo "Dynamic size 20x20, RowMajor, with asserts"
g++ -O3 -I .. -DEIGEN_DEFAULT_MATRIX_STORAGE_ORDER=RowMajor benchmarkX.cpp -o benchmarkX && time ./benchmarkX >/dev/null

1
doc/snippets/MatrixBase_asDiagonal.cpp Normal file
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cout << Vector3i(2,5,6).asDiagonal() << endl;

2
doc/snippets/MatrixBase_block.cpp
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@@ -1,4 +1,4 @@
Matrix4d m = Matrix4d::diagonal(Vector4d(1,2,3,4));
Matrix4d m = Vector4d(1,2,3,4).asDiagonal();
cout << "Here is the matrix m:" << endl << m << endl;
cout << "Here is m.block<2, 2>(2, 2):" << endl << m.block<2, 2>(2, 2) << endl;
m.block<2, 2>(2, 0) = m.block<2, 2>(2, 2);

2
doc/snippets/MatrixBase_dynBlock.cpp
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@@ -1,4 +1,4 @@
Matrix3d m = Matrix3d::diagonal(Vector3d(1,2,3));
Matrix3d m = Vector3d(1,2,3).asDiagonal();
cout << "Here is the matrix m:" << endl << m << endl;
cout << "Here is m.dynBlock(1, 1, 2, 1):" << endl << m.dynBlock(1, 1, 2, 1) << endl;
m.dynBlock(1, 0, 2, 1) = m.dynBlock(1, 1, 2, 1);