FLA_Gemm_hh_blk_var4.c File Reference

(r)


Functions

FLA_Error FLA_Gemm_hh_blk_var4 (FLA_Obj alpha, FLA_Obj A, FLA_Obj B, FLA_Obj beta, FLA_Obj C, fla_gemm_t *cntl)

Function Documentation

FLA_Error FLA_Gemm_hh_blk_var4 ( FLA_Obj  alpha,
FLA_Obj  A,
FLA_Obj  B,
FLA_Obj  beta,
FLA_Obj  C,
fla_gemm_t cntl 
)

References FLA_Cont_with_1x3_to_1x2(), FLA_Cont_with_3x1_to_2x1(), FLA_Determine_blocksize(), FLA_Gemm_internal(), FLA_Obj_length(), FLA_Part_1x2(), FLA_Part_2x1(), FLA_Repart_1x2_to_1x3(), and FLA_Repart_2x1_to_3x1().

Referenced by FLA_Gemm_hh().

00038 {
00039   FLA_Obj BT,              B0,
00040           BB,              B1,
00041                            B2;
00042 
00043   FLA_Obj CL,    CR,       C0,  C1,  C2;
00044 
00045   dim_t b;
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     b = FLA_Determine_blocksize( BT, FLA_TOP, FLA_Cntl_blocksize( cntl ) );
00055 
00056     FLA_Repart_2x1_to_3x1( BT,                &B0, 
00057                                               &B1, 
00058                         /* ** */            /* ** */
00059                            BB,                &B2,        b, FLA_TOP );
00060 
00061     FLA_Repart_1x2_to_1x3( CL,  /**/ CR,        &C0, &C1, /**/ &C2,
00062                            b, FLA_LEFT );
00063 
00064     /*------------------------------------------------------------*/
00065 
00066     /* C1 = alpha * A' * B1' + C1; */
00067     FLA_Gemm_internal( FLA_CONJ_TRANSPOSE, FLA_CONJ_TRANSPOSE,
00068                        alpha, A, B1, beta, C1,
00069                        FLA_Cntl_sub_gemm( cntl ) );
00070 
00071     /*------------------------------------------------------------*/
00072 
00073     FLA_Cont_with_3x1_to_2x1( &BT,                B0, 
00074                             /* ** */           /* ** */
00075                                                   B1, 
00076                               &BB,                B2,     FLA_BOTTOM );
00077 
00078     FLA_Cont_with_1x3_to_1x2( &CL,  /**/ &CR,        C0, /**/ C1, C2,
00079                               FLA_RIGHT );
00080 
00081   }
00082 
00083   return FLA_SUCCESS;
00084 }


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