Squashed 'third_party/eigen/' content from commit 61d72f6
Change-Id: Iccc90fa0b55ab44037f018046d2fcffd90d9d025
git-subtree-dir: third_party/eigen
git-subtree-split: 61d72f6383cfa842868c53e30e087b0258177257
diff --git a/bench/sparse_transpose.cpp b/bench/sparse_transpose.cpp
new file mode 100644
index 0000000..c9aacf5
--- /dev/null
+++ b/bench/sparse_transpose.cpp
@@ -0,0 +1,104 @@
+
+//g++ -O3 -g0 -DNDEBUG sparse_transpose.cpp -I.. -I/home/gael/Coding/LinearAlgebra/mtl4/ -DDENSITY=0.005 -DSIZE=10000 && ./a.out
+// -DNOGMM -DNOMTL
+// -DCSPARSE -I /home/gael/Coding/LinearAlgebra/CSparse/Include/ /home/gael/Coding/LinearAlgebra/CSparse/Lib/libcsparse.a
+
+#ifndef SIZE
+#define SIZE 10000
+#endif
+
+#ifndef DENSITY
+#define DENSITY 0.01
+#endif
+
+#ifndef REPEAT
+#define REPEAT 1
+#endif
+
+#include "BenchSparseUtil.h"
+
+#ifndef MINDENSITY
+#define MINDENSITY 0.0004
+#endif
+
+#ifndef NBTRIES
+#define NBTRIES 10
+#endif
+
+#define BENCH(X) \
+ timer.reset(); \
+ for (int _j=0; _j<NBTRIES; ++_j) { \
+ timer.start(); \
+ for (int _k=0; _k<REPEAT; ++_k) { \
+ X \
+ } timer.stop(); }
+
+int main(int argc, char *argv[])
+{
+ int rows = SIZE;
+ int cols = SIZE;
+ float density = DENSITY;
+
+ EigenSparseMatrix sm1(rows,cols), sm3(rows,cols);
+
+ BenchTimer timer;
+ for (float density = DENSITY; density>=MINDENSITY; density*=0.5)
+ {
+ fillMatrix(density, rows, cols, sm1);
+
+ // dense matrices
+ #ifdef DENSEMATRIX
+ {
+ DenseMatrix m1(rows,cols), m3(rows,cols);
+ eiToDense(sm1, m1);
+ BENCH(for (int k=0; k<REPEAT; ++k) m3 = m1.transpose();)
+ std::cout << " Eigen dense:\t" << timer.value() << endl;
+ }
+ #endif
+
+ std::cout << "Non zeros: " << sm1.nonZeros()/float(sm1.rows()*sm1.cols())*100 << "%\n";
+
+ // eigen sparse matrices
+ {
+ BENCH(for (int k=0; k<REPEAT; ++k) sm3 = sm1.transpose();)
+ std::cout << " Eigen:\t" << timer.value() << endl;
+ }
+
+ // CSparse
+ #ifdef CSPARSE
+ {
+ cs *m1, *m3;
+ eiToCSparse(sm1, m1);
+
+ BENCH(for (int k=0; k<REPEAT; ++k) { m3 = cs_transpose(m1,1); cs_spfree(m3);})
+ std::cout << " CSparse:\t" << timer.value() << endl;
+ }
+ #endif
+
+ // GMM++
+ #ifndef NOGMM
+ {
+ GmmDynSparse gmmT3(rows,cols);
+ GmmSparse m1(rows,cols), m3(rows,cols);
+ eiToGmm(sm1, m1);
+ BENCH(for (int k=0; k<REPEAT; ++k) gmm::copy(gmm::transposed(m1),m3);)
+ std::cout << " GMM:\t\t" << timer.value() << endl;
+ }
+ #endif
+
+ // MTL4
+ #ifndef NOMTL
+ {
+ MtlSparse m1(rows,cols), m3(rows,cols);
+ eiToMtl(sm1, m1);
+ BENCH(for (int k=0; k<REPEAT; ++k) m3 = trans(m1);)
+ std::cout << " MTL4:\t\t" << timer.value() << endl;
+ }
+ #endif
+
+ std::cout << "\n\n";
+ }
+
+ return 0;
+}
+