Package org.ejml.dense.row.misc

Class TransposeAlgs_MT_DDRM

java.lang.Object
org.ejml.dense.row.misc.TransposeAlgs_MT_DDRM
@Generated("org.ejml.dense.row.misc.TransposeAlgs_DDRM")
public class TransposeAlgs_MT_DDRM
extends java.lang.Object
Low level transpose algorithms. No sanity checks are performed. Take a look at BenchmarkTranspose to see which one is faster on your computer.

  • Constructor Summary

    Constructors 
    Constructor Description
    TransposeAlgs_MT_DDRM()  

  • Method Summary

    Modifier and Type Method Description
    static void block​(org.ejml.data.DMatrix1Row A, org.ejml.data.DMatrix1Row A_tran, int blockLength)
    Performs a transpose across block sub-matrices.
    static void square​(org.ejml.data.DMatrix1Row A)
    In-place transpose for a square matrix.
    static void standard​(org.ejml.data.DMatrix1Row A, org.ejml.data.DMatrix1Row A_tran)
    A straight forward transpose.

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

  • Method Details

    • square

      public static void square​(org.ejml.data.DMatrix1Row A)
      In-place transpose for a square matrix. On most architectures it is faster than the standard transpose algorithm, but on most modern computers it's slower than block transpose.
      Parameters:
      A - The matrix that is transposed in-place. Modified.

    • block

      public static void block​(org.ejml.data.DMatrix1Row A, org.ejml.data.DMatrix1Row A_tran, int blockLength)
      Performs a transpose across block sub-matrices. Reduces the number of cache misses on larger matrices. *NOTE* If this is beneficial is highly dependent on the computer it is run on. e.g: - Q6600 Almost twice as fast as standard. - Pentium-M Same speed and some times a bit slower than standard.
      Parameters:
      A - Original matrix. Not modified.
      A_tran - Transposed matrix. Modified.
      blockLength - Length of a block.

    • standard

      public static void standard​(org.ejml.data.DMatrix1Row A, org.ejml.data.DMatrix1Row A_tran)
      A straight forward transpose. Good for small non-square matrices.
      Parameters:
      A - Original matrix. Not modified.
      A_tran - Transposed matrix. Modified.