FLA_Hemm_rl_unb_var7.c File Reference

(r)


Functions

FLA_Error FLA_Hemm_rl_unb_var7 (FLA_Obj alpha, FLA_Obj A, FLA_Obj B, FLA_Obj beta, FLA_Obj C)

Function Documentation

FLA_Error FLA_Hemm_rl_unb_var7 ( FLA_Obj  alpha,
FLA_Obj  A,
FLA_Obj  B,
FLA_Obj  beta,
FLA_Obj  C 
)

References FLA_Axpys_external(), FLA_Cont_with_1x3_to_1x2(), FLA_Cont_with_3x3_to_2x2(), FLA_Gemvc_external(), FLA_Ger_external(), FLA_Obj_length(), FLA_ONE, FLA_Part_1x2(), FLA_Part_2x2(), FLA_Repart_1x2_to_1x3(), and FLA_Repart_2x2_to_3x3().

00038 {
00039   FLA_Obj ATL,   ATR,      A00,  a01,     A02, 
00040           ABL,   ABR,      a10t, alpha11, a12t,
00041                            A20,  a21,     A22;
00042 
00043   FLA_Obj BL,    BR,       B0,  b1t,  B2;
00044 
00045   FLA_Obj CL,    CR,       C0,  c1t,  C2;
00046 
00047 
00048   FLA_Part_2x2( A,    &ATL, &ATR,
00049                       &ABL, &ABR,     0, 0, FLA_BR );
00050 
00051   FLA_Part_1x2( B,    &BL,  &BR,      0, FLA_RIGHT );
00052 
00053   FLA_Part_1x2( C,    &CL,  &CR,      0, FLA_RIGHT );
00054 
00055   while ( FLA_Obj_length( ABR ) < FLA_Obj_length( A ) ){
00056 
00057 
00058     FLA_Repart_2x2_to_3x3( ATL, /**/ ATR,       &A00,  &a01,     /**/ &A02,
00059                                                 &a10t, &alpha11, /**/ &a12t,
00060                         /* ************* */   /* ************************** */
00061                            ABL, /**/ ABR,       &A20,  &a21,     /**/ &A22,
00062                            1, 1, FLA_TL );
00063 
00064     FLA_Repart_1x2_to_1x3( BL,  /**/ BR,        &B0, &b1t, /**/ &B2,
00065                            1, FLA_LEFT );
00066 
00067     FLA_Repart_1x2_to_1x3( CL,  /**/ CR,        &C0, &c1t, /**/ &C2,
00068                            1, FLA_LEFT );
00069 
00070     /*------------------------------------------------------------*/
00071 
00072     /* C0 = C0 + b1t * a10t */
00073     FLA_Ger_external( alpha, b1t, a10t, C0 );
00074 
00075     /* c1t = c1t + B0 * a10t' */
00076     FLA_Gemvc_external( FLA_NO_TRANSPOSE, FLA_CONJUGATE, alpha, B0, a10t, FLA_ONE, c1t );
00077 
00078     /* c1t = c1t + b1t * alpha11 */
00079     FLA_Axpys_external( alpha, alpha11, b1t, beta, c1t );
00080 
00081     /*------------------------------------------------------------*/
00082 
00083     FLA_Cont_with_3x3_to_2x2( &ATL, /**/ &ATR,       A00,  /**/ a01, A02,
00084                             /* ************** */  /* ************************ */
00085                                                      a10t, /**/ alpha11, a12t,
00086                               &ABL, /**/ &ABR,       A20,  /**/ a21, A22,
00087                               FLA_BR );
00088 
00089     FLA_Cont_with_1x3_to_1x2( &BL,  /**/ &BR,        B0, /**/ b1t, B2,
00090                               FLA_RIGHT );
00091 
00092     FLA_Cont_with_1x3_to_1x2( &CL,  /**/ &CR,        C0, /**/ c1t, C2,
00093                               FLA_RIGHT );
00094 
00095   }
00096 
00097   return FLA_SUCCESS;
00098 }


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