From 9e02e42ff6757da1c96518a24c913a01250564ee Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Tue, 21 Oct 2008 00:05:45 +0000
Subject: add the bench file for the RandomSetter

---
 bench/sparse_randomsetter.cpp | 104 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100644 bench/sparse_randomsetter.cpp

(limited to 'bench/sparse_randomsetter.cpp')

diff --git a/bench/sparse_randomsetter.cpp b/bench/sparse_randomsetter.cpp
new file mode 100644
index 000000000..7868e177a
--- /dev/null
+++ b/bench/sparse_randomsetter.cpp
@@ -0,0 +1,104 @@
+
+#define NOGMM
+#define NOMTL
+
+#include <map>
+#include <ext/hash_map>
+#include <google/dense_hash_map>
+#include <google/sparse_hash_map>
+
+#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), sm2(rows,cols);
+
+
+  int n = rows*cols*density;
+  std::cout << "n = " << n << "\n";
+  int dummy;
+  BenchTimer t;
+
+  t.reset(); t.start();
+  for (int k=0; k<n; ++k)
+    dummy = ei_random<int>(0,rows-1) + ei_random<int>(0,cols-1);
+  t.stop();
+  double rtime = t.value();
+  std::cout << "rtime = " << rtime << " (" << dummy << ")\n\n";
+  const int Bits = 6;
+  for (;;)
+  {
+    {
+      RandomSetter<EigenSparseMatrix,StdMapTraits,Bits> set1(sm1);
+      t.reset(); t.start();
+      for (int k=0; k<n; ++k)
+        set1(ei_random<int>(0,rows-1),ei_random<int>(0,cols-1)) += 1;
+      t.stop();
+      std::cout << "std::map =>      \t" << t.value()-rtime
+                << " nnz=" << set1.nonZeros() << "\n";getchar();
+    }
+    {
+      RandomSetter<EigenSparseMatrix,GnuHashMapTraits,Bits> set1(sm1);
+      t.reset(); t.start();
+      for (int k=0; k<n; ++k)
+        set1(ei_random<int>(0,rows-1),ei_random<int>(0,cols-1)) += 1;
+      t.stop();
+      std::cout << "gnu::hash_map => \t" << t.value()-rtime
+                << " nnz=" << set1.nonZeros() << "\n";getchar();
+    }
+    {
+      RandomSetter<EigenSparseMatrix,GoogleDenseHashMapTraits,Bits> set1(sm1);
+      t.reset(); t.start();
+      for (int k=0; k<n; ++k)
+        set1(ei_random<int>(0,rows-1),ei_random<int>(0,cols-1)) += 1;
+      t.stop();
+      std::cout << "google::dense => \t" << t.value()-rtime
+                << " nnz=" << set1.nonZeros() << "\n";getchar();
+    }
+    {
+      RandomSetter<EigenSparseMatrix,GoogleSparseHashMapTraits,Bits> set1(sm1);
+      t.reset(); t.start();
+      for (int k=0; k<n; ++k)
+        set1(ei_random<int>(0,rows-1),ei_random<int>(0,cols-1)) += 1;
+      t.stop();
+      std::cout << "google::sparse => \t" << t.value()-rtime
+                << " nnz=" << set1.nonZeros() << "\n";getchar();
+    }
+    std::cout << "\n\n";
+  }
+
+  return 0;
+}
+
-- 
cgit v1.2.3