Examples with Well1024a org.apache.commons.math3.random.Well1024a used on opensource projects

Example 6 with Well1024a

use of org.apache.commons.math3.random.Well1024a in project incubator-systemml by apache.

the class MatrixBlock method randOperations.

/**
	 * Function to generate the random matrix with specified dimensions and block dimensions.
	 * 
	 * @param rgen random matrix generator
	 * @param seed seed value
	 * @param k ?
	 * @return matrix block
	 * @throws DMLRuntimeException if DMLRuntimeException occurs
	 */
public static MatrixBlock randOperations(RandomMatrixGenerator rgen, long seed, int k) throws DMLRuntimeException {
    MatrixBlock out = new MatrixBlock();
    Well1024a bigrand = null;
    LongStream nnzInBlock = null;
    //setup seeds and nnz per block
    if (!LibMatrixDatagen.isShortcutRandOperation(rgen._min, rgen._max, rgen._sparsity, rgen._pdf)) {
        bigrand = LibMatrixDatagen.setupSeedsForRand(seed);
        nnzInBlock = LibMatrixDatagen.computeNNZperBlock(rgen._rows, rgen._cols, rgen._rowsPerBlock, rgen._colsPerBlock, rgen._sparsity);
    }
    //generate rand data
    if (k > 1)
        out.randOperationsInPlace(rgen, nnzInBlock, bigrand, -1, k);
    else
        out.randOperationsInPlace(rgen, nnzInBlock, bigrand, -1);
    return out;
}