BLAS Library Functions

According to the writing style of the Java language, matrices are in row-major order by default.

Enumeration Type

Table 1 describes the BLAS enumeration types in KML_JAVA.

**Table 1** BLAS enumeration types and syntax
Enumeration Type	Description	Syntax
Transpose	Defines whether to transpose the original or conjugated matrix.	public enum Transpose { NO_TRANS(111), TRANS(112), CONJ_TRANS(113), CONJ_NO_TRANS(114); }
Uplo	Defines whether to use the upper triangular part or lower triangular part of the matrix.	public enum Uplo { UPPER=121, LOWER=122; }
Diag	Defines whether the used matrix is a unit matrix.	public enum Diag { NON_UNIT=131, UNIT=132; }
Side	Defines whether the matrix appears on the left or right in the operation.	public enum Side { LEFT=141, RIGHT=142; }

Dependencies

import com.huawei.kml.BLAS;

If enumeration is required, explicitly declare as follows:

import com.huawei.kml.BLAS.Diag;

import com.huawei.kml.BLAS.Side;

import com.huawei.kml.BLAS.Transpose;

import com.huawei.kml.BLAS.Uplo;

Examples

public class DMMTest {
    void testGemm() {
        int sizeM = 4;
        int sizeN = 4;
        int sizeK = 3;
        double[] matrixA = new double[]{ 0.340188, 0.411647, -0.222225, 
                                        -0.105617, -0.302449, 0.053970, 
                                         0.283099, -0.164777, -0.022603, 
                                         0.298440, 0.268230, 0.128871};
        double[] matrixB = new double[]{ -0.135216, 0.416195, -0.358397, -0.257113, 
                                         0.013401, 0.135712, 0.106969, -0.362768, 
                                         0.452230, 0.217297, -0.483699, 0.304177};
        double[] matrixC = new double[]{ -0.343321, 0.498924, 0.112640, -0.006417, 
                                         -0.099056, -0.281743, -0.203968, 0.472775, 
                                         -0.370210, 0.012932, 0.137552, -0.207483, 
                                         -0.391191, 0.339112, 0.024287, 0.271358};
        double alpha = 1.0;
        double beta = 2.0;
        BLAS.dgemm( Transpose.NO_TRANS, Transpose.NO_TRANS, sizeM, sizeN, sizeK, alpha, matrixA, sizeK, matrixB, sizeN, beta, matrixC, sizeN);
    }
}
/* 
     * matrixC: 
     *     -0.827621       1.147010        0.254881        -0.317229 
     *     -0.163476       -0.636762       -0.428542       1.098841 
     *     -0.791128       0.116416        0.166949        -0.434854 
     *     -0.760862       0.866839        -0.092028       0.407877 
     *      */

Parent topic: Function Syntax