FLA_Gemm_cc_unb_var2.c File Reference

(r)

Functions
FLA_Error	FLA_Gemm_cc_unb_var2 (FLA_Obj alpha, FLA_Obj A, FLA_Obj B, FLA_Obj beta, FLA_Obj C)

Function Documentation

FLA_Gemm_cc_unb_var2()

FLA_Error FLA_Gemm_cc_unb_var2	(	FLA_Obj	alpha,
		FLA_Obj	A,
		FLA_Obj	B,
		FLA_Obj	beta,
		FLA_Obj	C )

{
  FLA_Obj AT,              A0,
          AB,              a1t,
                           A2;
 
  FLA_Obj CT,              C0,
          CB,              c1t,
                           C2;
 
  FLA_Scal_external( beta, C );
 
  FLA_Part_2x1( A,    &AT, 
                      &AB,            0, FLA_BOTTOM );
 
  FLA_Part_2x1( C,    &CT, 
                      &CB,            0, FLA_BOTTOM );
 
  while ( FLA_Obj_length( AB ) < FLA_Obj_length( A ) ){
 
    FLA_Repart_2x1_to_3x1( AT,                &A0, 
                                              &a1t, 
                        /* ** */            /* *** */
                           AB,                &A2,        1, FLA_TOP );
 
    FLA_Repart_2x1_to_3x1( CT,                &C0, 
                                              &c1t, 
                        /* ** */            /* *** */
                           CB,                &C2,        1, FLA_TOP );
 
    /*------------------------------------------------------------*/
 
    /* c1t  = a1t * B + c1t    */
    /* c1t' = B' * a1t' + c1t' */
    FLA_Gemvc_external( FLA_CONJ_TRANSPOSE, FLA_CONJUGATE, alpha, B, a1t, FLA_ONE, c1t );
 
    /*------------------------------------------------------------*/
 
    FLA_Cont_with_3x1_to_2x1( &AT,                A0, 
                            /* ** */           /* *** */
                                                  a1t, 
                              &AB,                A2,     FLA_BOTTOM );
 
    FLA_Cont_with_3x1_to_2x1( &CT,                C0, 
                            /* ** */           /* *** */
                                                  c1t, 
                              &CB,                C2,     FLA_BOTTOM );
 
  }
 
  return FLA_SUCCESS;
}

References FLA_Cont_with_3x1_to_2x1(), FLA_Gemvc_external(), FLA_Obj_length(), FLA_ONE, FLA_Part_2x1(), FLA_Repart_2x1_to_3x1(), and FLA_Scal_external().

Referenced by FLA_Gemm_cc().