TransposeAlgs_MT_FDRM

java.lang.Object

org.ejml.dense.row.misc.TransposeAlgs_MT_FDRM

@Generated("org.ejml.dense.row.misc.TransposeAlgs_FDRM") public class TransposeAlgs_MT_FDRM extends 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_FDRM()
Method Summary

Modifier and Type

Method

Description

static void

block(FMatrix1Row A, FMatrix1Row A_tran, int blockLength)

Performs a transpose across block sub-matrices.

static void

square(FMatrix1Row A)

In-place transpose for a square matrix.

static void

standard(FMatrix1Row A, FMatrix1Row 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
- TransposeAlgs_MT_FDRM
  
  public TransposeAlgs_MT_FDRM()
Method Details
- square
  
  public static void square(FMatrix1Row 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(FMatrix1Row A, FMatrix1Row 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(FMatrix1Row A, FMatrix1Row A_tran)
  
  A straight forward transpose. Good for small non-square matrices.
  
  Parameters:
  
  A - Original matrix. Not modified.
  
  A_tran - Transposed matrix. Modified.