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// Generated code (makeloops.cpp) -- do not edit.
// In KAI C++ 3.2, restrict causes problems for copy propagation.
// Temporary fix: disable restrict
#define BZ_DISABLE_RESTRICT
#include <blitz/vector.h>
#include <blitz/array.h>
#include <blitz/rand-uniform.h>
#include <blitz/benchext.h>
// Generated: makeloops.cpp Dec 11 2002
#ifdef BZ_HAVE_VALARRAY
#define BENCHMARK_VALARRAY
#endif
#ifdef BENCHMARK_VALARRAY
#include <valarray>
#endif
BZ_USING_NAMESPACE(blitz)
#if defined(BZ_FORTRAN_SYMBOLS_WITH_TRAILING_UNDERSCORES)
#define loop3_f77 loop3_f77_
#define loop3_f77overhead loop3_f77overhead_
#define loop3_f90 loop3_f90_
#define loop3_f90overhead loop3_f90overhead_
#elif defined(BZ_FORTRAN_SYMBOLS_WITH_DOUBLE_TRAILING_UNDERSCORES)
#define loop3_f77 loop3_f77__
#define loop3_f77overhead loop3_f77overhead__
#define loop3_f90 loop3_f90__
#define loop3_f90overhead loop3_f90overhead__
#elif defined(BZ_FORTRAN_SYMBOLS_CAPS)
#define loop3_f77 LOOP3_F77
#define loop3_f77overhead LOOP3_F77OVERHEAD
#define loop3_f90 LOOP3_F90
#define loop3_f90overhead LOOP3_F90OVERHEAD
#endif
extern "C" {
void loop3_f77(const int& N, double* x, double* y, const double& a);
void loop3_f77overhead(const int& N, double* x, double* y, const double& a);
void loop3_f90(const int& N, double* x, double* y, const double& a);
void loop3_f90overhead(const int& N, double* x, double* y, const double& a);
}
void VectorVersion(BenchmarkExt<int>& bench, double a);
void ArrayVersion(BenchmarkExt<int>& bench, double a);
void F77Version(BenchmarkExt<int>& bench, double a);
#ifdef FORTRAN_90
void F90Version(BenchmarkExt<int>& bench, double a);
#endif
#ifdef BENCHMARK_VALARRAY
void ValarrayVersion(BenchmarkExt<int>& bench, double a);
#endif
void sink() {}
int main()
{
int numBenchmarks = 5;
#ifndef BENCHMARK_VALARRAY
numBenchmarks--; // No valarray
#endif
#ifndef FORTRAN_90
numBenchmarks--; // No fortran 90
#endif
BenchmarkExt<int> bench("loop3: $y=$y+$a*$x", numBenchmarks);
const int numSizes = 23;
bench.setNumParameters(numSizes);
bench.setRateDescription("Mflops/s");
Vector<int> parameters(numSizes);
Vector<long> iters(numSizes);
Vector<double> flops(numSizes);
for (int i=0; i < numSizes; ++i)
{
parameters[i] = (int)pow(10.0, (i+1)/4.0);
iters[i] = 10000000L / parameters[i];
if (iters[i] < 2)
iters[i] = 2;
flops[i] = 2 * parameters[i];
}
bench.setParameterVector(parameters);
bench.setIterations(iters);
bench.setFlopsPerIteration(flops);
bench.beginBenchmarking();
double a = 0.39123982498157938742;
VectorVersion(bench, a);
ArrayVersion(bench, a);
F77Version(bench, a);
#ifdef FORTRAN_90
F90Version(bench, a);
#endif
#ifdef BENCHMARK_VALARRAY
ValarrayVersion(bench, a);
#endif
bench.endBenchmarking();
bench.saveMatlabGraph("loop3.m");
return 0;
}
template<class T>
void initializeRandomDouble(T data, int numElements, int stride = 1)
{
static Random<Uniform> rnd;
for (int i=0; i < numElements; ++i)
data[size_t(i*stride)] = rnd.random();
}
template<class T>
void initializeArray(T& array, int numElements)
{
static Random<Uniform> rnd;
for (size_t i=0; i < numElements; ++i)
array[i] = rnd.random();
}
void VectorVersion(BenchmarkExt<int>& bench, double a)
{
bench.beginImplementation("Vector<T>");
while (!bench.doneImplementationBenchmark())
{
int N = bench.getParameter();
cout << "Vector<T>: N = " << N << endl;
cout.flush();
long iters = bench.getIterations();
Vector<double> x(N);
initializeRandomDouble(x.data(), N);
Vector<double> y(N);
initializeRandomDouble(y.data(), N);
bench.start();
for (long i=0; i < iters; ++i)
{
y=y+a*x;
sink();
}
bench.stop();
bench.startOverhead();
for (long i=0; i < iters; ++i)
sink();
bench.stopOverhead();
}
bench.endImplementation();
}
void ArrayVersion(BenchmarkExt<int>& bench, double a)
{
bench.beginImplementation("Array<T,1>");
while (!bench.doneImplementationBenchmark())
{
int N = bench.getParameter();
cout << "Array<T,1>: N = " << N << endl;
cout.flush();
long iters = bench.getIterations();
Array<double, 1> x(N);
initializeRandomDouble(x.dataFirst(), N);
Array<double, 1> y(N);
initializeRandomDouble(y.dataFirst(), N);
bench.start();
for (long i=0; i < iters; ++i)
{
y=y+a*x;
sink();
}
bench.stop();
bench.startOverhead();
for (long i=0; i < iters; ++i)
sink();
bench.stopOverhead();
}
bench.endImplementation();
}
#ifdef BENCHMARK_VALARRAY
void ValarrayVersion(BenchmarkExt<int>& bench, double a)
{
bench.beginImplementation("valarray<T>");
while (!bench.doneImplementationBenchmark())
{
int N = bench.getParameter();
cout << "valarray<T>: N = " << N << endl;
cout.flush();
long iters = bench.getIterations();
valarray<double> x(N);
initializeArray(x, N);
valarray<double> y(N);
initializeArray(y, N);
bench.start();
for (long i=0; i < iters; ++i)
{
y=y+a*x;
sink();
}
bench.stop();
bench.startOverhead();
for (long i=0; i < iters; ++i)
sink();
bench.stopOverhead();
}
bench.endImplementation();
}
#endif
void F77Version(BenchmarkExt<int>& bench, double a)
{
bench.beginImplementation("Fortran 77");
while (!bench.doneImplementationBenchmark())
{
int N = bench.getParameter();
cout << "Fortran 77: N = " << N << endl;
cout.flush();
int iters = bench.getIterations();
double* x = new double[N];
initializeRandomDouble(x, N);
double* y = new double[N];
initializeRandomDouble(y, N);
bench.start();
for (int iter=0; iter < iters; ++iter)
loop3_f77(N, x, y, a);
bench.stop();
bench.startOverhead();
for (int iter=0; iter < iters; ++iter)
loop3_f77overhead(N, x, y, a);
bench.stopOverhead();
delete [] x;
delete [] y;
}
bench.endImplementation();
}
#ifdef FORTRAN_90
void F90Version(BenchmarkExt<int>& bench, double a)
{
bench.beginImplementation("Fortran 90");
while (!bench.doneImplementationBenchmark())
{
int N = bench.getParameter();
cout << "Fortran 90: N = " << N << endl;
cout.flush();
int iters = bench.getIterations();
double* x = new double[N];
initializeRandomDouble(x, N);
double* y = new double[N];
initializeRandomDouble(y, N);
bench.start();
for (int iter=0; iter < iters; ++iter)
loop3_f90(N, x, y, a);
bench.stop();
bench.startOverhead();
for (int iter=0; iter < iters; ++iter)
loop3_f90overhead(N, x, y, a);
bench.stopOverhead();
delete [] x;
delete [] y;
}
bench.endImplementation();
}
#endif
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