FLA_Her2k_lh_blk_var3.c File Reference

(r)


Functions

FLA_Error FLA_Her2k_lh_blk_var3 (FLA_Obj alpha, FLA_Obj A, FLA_Obj B, FLA_Obj beta, FLA_Obj C, fla_her2k_t *cntl)

Function Documentation

FLA_Error FLA_Her2k_lh_blk_var3 ( FLA_Obj  alpha,
FLA_Obj  A,
FLA_Obj  B,
FLA_Obj  beta,
FLA_Obj  C,
fla_her2k_t cntl 
)

References FLA_Cont_with_1x3_to_1x2(), FLA_Cont_with_3x3_to_2x2(), FLA_Determine_blocksize(), FLA_Gemm_internal(), FLA_Her2k_internal(), FLA_Obj_width(), FLA_ONE, FLA_Part_1x2(), FLA_Part_2x2(), FLA_Repart_1x2_to_1x3(), and FLA_Repart_2x2_to_3x3().

Referenced by FLA_Her2k_lh().

00036 {
00037   FLA_Obj AL,    AR,       A0,  A1,  A2;
00038 
00039   FLA_Obj BL,    BR,       B0,  B1,  B2;
00040 
00041   FLA_Obj CTL,   CTR,      C00, C01, C02, 
00042           CBL,   CBR,      C10, C11, C12,
00043                            C20, C21, C22;
00044 
00045   dim_t b;
00046 
00047   FLA_Part_1x2( A,    &AL,  &AR,      0, FLA_LEFT );
00048 
00049   FLA_Part_1x2( B,    &BL,  &BR,      0, FLA_LEFT );
00050 
00051   FLA_Part_2x2( C,    &CTL, &CTR,
00052                       &CBL, &CBR,     0, 0, FLA_TL );
00053 
00054   while ( FLA_Obj_width( AL ) < FLA_Obj_width( A ) ){
00055 
00056     b = FLA_Determine_blocksize( AR, FLA_RIGHT, FLA_Cntl_blocksize( cntl ) );
00057 
00058     FLA_Repart_1x2_to_1x3( AL,  /**/ AR,        &A0, /**/ &A1, &A2,
00059                            b, FLA_RIGHT );
00060 
00061     FLA_Repart_1x2_to_1x3( BL,  /**/ BR,        &B0, /**/ &B1, &B2,
00062                            b, FLA_RIGHT );
00063 
00064     FLA_Repart_2x2_to_3x3( CTL, /**/ CTR,       &C00, /**/ &C01, &C02,
00065                         /* ************* */   /* ******************** */
00066                                                 &C10, /**/ &C11, &C12,
00067                            CBL, /**/ CBR,       &C20, /**/ &C21, &C22,
00068                            b, b, FLA_BR );
00069 
00070     /*------------------------------------------------------------*/
00071 
00072     /* C10 = C10 + A1' * B0 */
00073     FLA_Gemm_internal( FLA_CONJ_TRANSPOSE, FLA_NO_TRANSPOSE, 
00074                        alpha, A1, B0, beta, C10,
00075                        FLA_Cntl_sub_gemm1( cntl ) );
00076 
00077     /* C21 = C21 + B2' * A1 */
00078     FLA_Gemm_internal( FLA_CONJ_TRANSPOSE, FLA_NO_TRANSPOSE, 
00079                        alpha, B2, A1, FLA_ONE, C21,
00080                        FLA_Cntl_sub_gemm2( cntl ) );
00081 
00082     /* C11 = C11 + A1' * B1 + B1' * A1 */
00083     FLA_Her2k_internal( FLA_LOWER_TRIANGULAR, FLA_CONJ_TRANSPOSE, 
00084                         alpha, A1, B1, beta, C11,
00085                         FLA_Cntl_sub_her2k( cntl ) );
00086 
00087     /*------------------------------------------------------------*/
00088 
00089     FLA_Cont_with_1x3_to_1x2( &AL,  /**/ &AR,        A0, A1, /**/ A2,
00090                               FLA_LEFT );
00091 
00092     FLA_Cont_with_1x3_to_1x2( &BL,  /**/ &BR,        B0, B1, /**/ B2,
00093                               FLA_LEFT );
00094 
00095     FLA_Cont_with_3x3_to_2x2( &CTL, /**/ &CTR,       C00, C01, /**/ C02,
00096                                                      C10, C11, /**/ C12,
00097                             /* ************** */  /* ****************** */
00098                               &CBL, /**/ &CBR,       C20, C21, /**/ C22,
00099                               FLA_TL );
00100 
00101   }
00102 
00103   return FLA_SUCCESS;
00104 }


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