FLA_Gemm_hc_unb_var2.c File Reference

(r)

Functions
FLA_Error	FLA_Gemm_hc_unb_var2 (FLA_Obj alpha, FLA_Obj A, FLA_Obj B, FLA_Obj beta, FLA_Obj C)

Function Documentation

FLA_Gemm_hc_unb_var2()

FLA_Error FLA_Gemm_hc_unb_var2	(	FLA_Obj	alpha,
		FLA_Obj	A,
		FLA_Obj	B,
		FLA_Obj	beta,
		FLA_Obj	C
	)

{
  FLA_Obj AL,    AR,       A0,  a1,  A2;
 
  FLA_Obj CT,              C0,
          CB,              c1t,
                           C2;
 
  FLA_Scal_external( beta, C );
 
  FLA_Part_1x2( A,    &AL,  &AR,      0, FLA_RIGHT );
 
  FLA_Part_2x1( C,    &CT, 
                      &CB,            0, FLA_BOTTOM );
 
  while ( FLA_Obj_width( AR ) < FLA_Obj_width( A ) ){
 
    FLA_Repart_1x2_to_1x3( AL,  /**/ AR,        &A0, &a1, /**/ &A2,
                           1, FLA_LEFT );
 
    FLA_Repart_2x1_to_3x1( CT,                &C0, 
                                              &c1t, 
                        /* ** */            /* *** */
                           CB,                &C2,        1, FLA_TOP );
 
    /*------------------------------------------------------------*/
 
    /* c1t  = a1' * B + c1t  */
    /* c1t' = B' * a1 + c1t' */
    FLA_Gemvc_external( FLA_CONJ_TRANSPOSE, FLA_CONJUGATE, alpha, B, a1, FLA_ONE, c1t );
 
    /*------------------------------------------------------------*/
 
    FLA_Cont_with_1x3_to_1x2( &AL,  /**/ &AR,        A0, /**/ a1, A2,
                              FLA_RIGHT );
 
    FLA_Cont_with_3x1_to_2x1( &CT,                C0, 
                            /* ** */           /* *** */
                                                  c1t, 
                              &CB,                C2,     FLA_BOTTOM );
 
  }
 
  return FLA_SUCCESS;
}

References FLA_Cont_with_1x3_to_1x2(), FLA_Cont_with_3x1_to_2x1(), FLA_Gemvc_external(), FLA_Obj_width(), FLA_ONE, FLA_Part_1x2(), FLA_Part_2x1(), FLA_Repart_1x2_to_1x3(), FLA_Repart_2x1_to_3x1(), FLA_Scal_external(), and i.

Referenced by FLA_Gemm_hc().