FLA_Gemm_hh_unb_var4.c File Reference

(r)


Functions

FLA_Error FLA_Gemm_hh_unb_var4 (FLA_Obj alpha, FLA_Obj A, FLA_Obj B, FLA_Obj beta, FLA_Obj C)

Function Documentation

FLA_Error FLA_Gemm_hh_unb_var4 ( FLA_Obj  alpha,
FLA_Obj  A,
FLA_Obj  B,
FLA_Obj  beta,
FLA_Obj  C 
)

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

00038 {
00039   FLA_Obj BT,              B0,
00040           BB,              b1t,
00041                            B2;
00042 
00043   FLA_Obj CL,    CR,       C0,  c1,  C2;
00044 
00045   FLA_Scal_external( beta, C );
00046 
00047   FLA_Part_2x1( B,    &BT, 
00048                       &BB,            0, FLA_BOTTOM );
00049 
00050   FLA_Part_1x2( C,    &CL,  &CR,      0, FLA_RIGHT );
00051 
00052   while ( FLA_Obj_length( BB ) < FLA_Obj_length( B ) ){
00053 
00054     FLA_Repart_2x1_to_3x1( BT,                &B0, 
00055                                               &b1t, 
00056                         /* ** */            /* *** */
00057                            BB,                &B2,        1, FLA_TOP );
00058 
00059     FLA_Repart_1x2_to_1x3( CL,  /**/ CR,        &C0, &c1, /**/ &C2,
00060                            1, FLA_LEFT );
00061 
00062     /*------------------------------------------------------------*/
00063 
00064     /* c1 = A' * b1t' + c1 */
00065     FLA_Gemvc_external( FLA_CONJ_TRANSPOSE, FLA_CONJUGATE, alpha, A, b1t, FLA_ONE, c1 );
00066 
00067     /*------------------------------------------------------------*/
00068 
00069     FLA_Cont_with_3x1_to_2x1( &BT,                B0, 
00070                             /* ** */           /* *** */
00071                                                   b1t, 
00072                               &BB,                B2,     FLA_BOTTOM );
00073 
00074     FLA_Cont_with_1x3_to_1x2( &CL,  /**/ &CR,        C0, /**/ c1, C2,
00075                               FLA_RIGHT );
00076 
00077   }
00078 
00079   return FLA_SUCCESS;
00080 }


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