Examples of cern.colt.matrix.DoubleFactory2D.sample()

cern.colt.matrix.DoubleFactory2D.sample()
Constructs a randomly sampled matrix with the given shape. Randomly picks exactly Math.round(rows*columns*nonZeroFraction) cells and initializes them to value, all the rest will be initialized to zero. Note that this is not the same as setting each cell with probability nonZeroFraction to value. Note: The random seed is a constant. @throws IllegalArgumentException if nonZeroFraction < 0 || nonZeroFraction> 1. @see cern.jet.random.sampling.RandomSampler

    System.out.print("\n@"); 


    System.out.print("x");
    double val = 0.5;
    function.A=null; function.B=null; function.C=null; function.D=null; // --> help gc before allocating new mem
    DoubleMatrix2D A = factory.sample(size,size,val,density);
    DoubleMatrix2D B = factory.sample(size,size,val,density);
    function.setParameters(A,B);
    A = null; B = null; // help gc
    float secs = BenchmarkKernel.run(minSeconds,function);
    double ops = function.operations();

View Full Code Here


    System.out.print("x");
    double val = 0.5;
    function.A=null; function.B=null; function.C=null; function.D=null; // --> help gc before allocating new mem
    DoubleMatrix2D A = factory.sample(size,size,val,density);
    DoubleMatrix2D B = factory.sample(size,size,val,density);
    function.setParameters(A,B);
    A = null; B = null; // help gc
    float secs = BenchmarkKernel.run(minSeconds,function);
    double ops = function.operations();
    float opsPerSec = (float) (ops / secs);

View Full Code Here

        //if (true) {
        //if (!((k==1 && density >= 0.1 && size >=100) || (size>5000 && (k==0 || density>1.0E-4) ))) {
        if (!((k>0 && density >= 0.1 && size >=500) )) {
          double val = 0.5;
          function.A=null; function.B=null; function.C=null; function.D=null; // --> help gc before allocating new mem
          DoubleMatrix2D A = factory.sample(size,size,val,density);
          DoubleMatrix2D B = factory.sample(size,size,val,density);
          function.setParameters(A,B);
          A = null; B = null; // help gc
          double ops = function.operations();
          double secs = BenchmarkKernel.run(minSeconds,function);

View Full Code Here

        //if (!((k==1 && density >= 0.1 && size >=100) || (size>5000 && (k==0 || density>1.0E-4) ))) {
        if (!((k>0 && density >= 0.1 && size >=500) )) {
          double val = 0.5;
          function.A=null; function.B=null; function.C=null; function.D=null; // --> help gc before allocating new mem
          DoubleMatrix2D A = factory.sample(size,size,val,density);
          DoubleMatrix2D B = factory.sample(size,size,val,density);
          function.setParameters(A,B);
          A = null; B = null; // help gc
          double ops = function.operations();
          double secs = BenchmarkKernel.run(minSeconds,function);
          opsPerSec = (float) (ops / secs);

View Full Code Here

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.