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* coefficient wise operators are more generic, with controllable result type.

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- compatible with current STL's functors as well as with the extention proposal (TR1)
 * thanks to the above, Cast and ScalarMultiple have been removed
 * benchmark_suite is more flexible (compiler and matrix size)
This commit is contained in:
Gael Guennebaud
2008-03-06 11:36:27 +00:00
parent 8e0d548039
commit 138aad0ed0
17 changed files with 257 additions and 338 deletions
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37
doc/benchmark.cpp
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@@ -1,24 +1,31 @@
// g++ -O3 -DNDEBUG benchmark.cpp -o benchmark && time ./benchmark
// g++ -O3 -DNDEBUG -DMATSIZE=<x> benchmark.cpp -o benchmark && time ./benchmark
#include <cstdlib>
#include <cmath>
#include <Eigen/Core>
//using namespace std;
#ifndef MATSIZE
#define MATSIZE 3
#endif
using namespace std;
USING_PART_OF_NAMESPACE_EIGEN
int main(int argc, char *argv[])
{
Matrix3d I;
Matrix3d m;
for(int i = 0; i < 3; i++) for(int j = 0; j < 3; j++)
{
I(i,j) = (i==j);
m(i,j) = (i+3*j);
}
for(int a = 0; a < 400000000; a++)
{
m = I + 0.00005 * (m + m*m);
}
std::cout << m << std::endl;
return 0;
Matrix<double,MATSIZE,MATSIZE> I;
Matrix<double,MATSIZE,MATSIZE> m;
for(int i = 0; i < MATSIZE; i++)
for(int j = 0; j < MATSIZE; j++)
{
I(i,j) = (i==j);
m(i,j) = (i+MATSIZE*j);
}
asm("#begin");
for(int a = 0; a < 40000000; a++)
{
m = I + 0.00005 * (m + m*m);
}
asm("#end");
cout << m << endl;
return 0;
}