FLA_Gemm_th_blk_var6.c File Reference

(r)


Functions

FLA_Error FLA_Gemm_th_blk_var6 (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_th_blk_var6 ( 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_th().

00038 {
00039   FLA_Obj AT,              A0,
00040           AB,              A1,
00041                            A2;
00042 
00043   FLA_Obj BL,    BR,       B0,  B1,  B2;
00044 
00045   dim_t b;
00046 
00047   FLA_Part_2x1( A,    &AT, 
00048                       &AB,            0, FLA_BOTTOM );
00049 
00050   FLA_Part_1x2( B,    &BL,  &BR,      0, FLA_RIGHT );
00051 
00052   while ( FLA_Obj_length( AB ) < FLA_Obj_length( A ) ){
00053 
00054     b = FLA_Determine_blocksize( AT, FLA_TOP, FLA_Cntl_blocksize( cntl ) );
00055 
00056     FLA_Repart_2x1_to_3x1( AT,                &A0, 
00057                                               &A1, 
00058                         /* ** */            /* ** */
00059                            AB,                &A2,        b, FLA_TOP );
00060 
00061     FLA_Repart_1x2_to_1x3( BL,  /**/ BR,        &B0, &B1, /**/ &B2,
00062                            b, FLA_LEFT );
00063 
00064     /*------------------------------------------------------------*/
00065 
00066     /* C = alpha * A1' * B1' + C; */
00067     FLA_Gemm_internal( FLA_TRANSPOSE, FLA_CONJ_TRANSPOSE,
00068                        alpha, A1, B1, beta, C,
00069                        FLA_Cntl_sub_gemm( cntl ) );
00070 
00071     /*------------------------------------------------------------*/
00072 
00073     FLA_Cont_with_3x1_to_2x1( &AT,                A0, 
00074                             /* ** */           /* ** */
00075                                                   A1, 
00076                               &AB,                A2,     FLA_BOTTOM );
00077 
00078     FLA_Cont_with_1x3_to_1x2( &BL,  /**/ &BR,        B0, /**/ B1, B2,
00079                               FLA_RIGHT );
00080 
00081   }
00082 
00083   return FLA_SUCCESS;
00084 }


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