sparse_randomsetter.cpp File Reference

#include <map>
#include <ext/hash_map>
#include <google/dense_hash_map>
#include <google/sparse_hash_map>
#include "BenchSparseUtil.h"

Macros
#define	NOGMM
#define	NOMTL
#define	EIGEN_GOOGLEHASH_SUPPORT   1
#define	SIZE   10000
#define	DENSITY   0.01
#define	REPEAT   1
#define	MINDENSITY   0.0004
#define	NBTRIES   10
#define	BENCH(X)

Functions
template<typename SetterType >
void	dostuff (const char *name, EigenSparseMatrix &sm1)
int	main (int argc, char *argv[])

Variables
static double	rtime
static double	nentries

Macro Definition Documentation

BENCH

#define BENCH

(

X

)

Value:

  timer.reset();                          \
  for (int _j = 0; _j < NBTRIES; ++_j) {  \
    timer.start();                        \
    for (int _k = 0; _k < REPEAT; ++_k) { \
      X                                   \
    }                                     \
    timer.stop();                         \
  }

DENSITY

#define DENSITY   0.01

EIGEN_GOOGLEHASH_SUPPORT

#define EIGEN_GOOGLEHASH_SUPPORT   1

MINDENSITY

#define MINDENSITY   0.0004

NBTRIES

#define NBTRIES   10

NOGMM

#define NOGMM

NOMTL

#define NOMTL

REPEAT

#define REPEAT   1

SIZE

#define SIZE   10000

Function Documentation

dostuff()

template<typename SetterType >

void dostuff	(	const char *	name,
		EigenSparseMatrix &	sm1
	)

                                                       {
  int rows = sm1.rows();
  int cols = sm1.cols();
  sm1.setZero();
  BenchTimer t;
  SetterType* set1 = new SetterType(sm1);
  t.reset();
  t.start();
  for (int k = 0; k < nentries; ++k)
    (*set1)(internal::random<int>(0, rows - 1), internal::random<int>(0, cols - 1)) += 1;
  t.stop();
  std::cout << "std::map =>      \t" << t.value() - rtime << " nnz=" << set1->nonZeros() << std::flush;
 
  // getchar();
 
  t.reset();
  t.start();
  delete set1;
  t.stop();
  std::cout << "  back: \t" << t.value() << "\n";
}

References cols, Eigen::SparseMatrix< Scalar_, Options_, StorageIndex_ >::cols(), k, nentries, rows, Eigen::SparseMatrix< Scalar_, Options_, StorageIndex_ >::rows(), rtime, Eigen::SparseMatrix< Scalar_, Options_, StorageIndex_ >::setZero(), and plotPSD::t.

main()

int main	(	int argc	,
		char *	argv[]
	)

                                 {
  int rows = SIZE;
  int cols = SIZE;
  float density = DENSITY;
 
  EigenSparseMatrix sm1(rows, cols), sm2(rows, cols);
 
  nentries = rows * cols * density;
  std::cout << "n = " << nentries << "\n";
  int dummy;
  BenchTimer t;
 
  t.reset();
  t.start();
  for (int k = 0; k < nentries; ++k) dummy = internal::random<int>(0, rows - 1) + internal::random<int>(0, cols - 1);
  t.stop();
  rtime = t.value();
  std::cout << "rtime = " << rtime << " (" << dummy << ")\n\n";
  const int Bits = 6;
  for (;;) {
    dostuff<RandomSetter<EigenSparseMatrix, StdMapTraits, Bits> >("std::map     ", sm1);
    dostuff<RandomSetter<EigenSparseMatrix, GnuHashMapTraits, Bits> >("gnu::hash_map", sm1);
    dostuff<RandomSetter<EigenSparseMatrix, GoogleDenseHashMapTraits, Bits> >("google::dense", sm1);
    dostuff<RandomSetter<EigenSparseMatrix, GoogleSparseHashMapTraits, Bits> >("google::sparse", sm1);
 
    //     {
    //       RandomSetter<EigenSparseMatrix,GnuHashMapTraits,Bits> set1(sm1);
    //       t.reset(); t.start();
    //       for (int k=0; k<n; ++k)
    //         set1(internal::random<int>(0,rows-1),internal::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(internal::random<int>(0,rows-1),internal::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(internal::random<int>(0,rows-1),internal::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;
}

References cols, UniformPSDSelfTest::density, DENSITY, k, nentries, rows, rtime, SIZE, and plotPSD::t.

Variable Documentation

nentries

double nentries

static

Referenced by dostuff(), and main().

rtime

double rtime

static

Referenced by dostuff(), and main().