FLA_Trmm_ruh_blk_var1.c File Reference

(r)


Functions

FLA_Error FLA_Trmm_ruh_blk_var1 (FLA_Diag diagA, FLA_Obj alpha, FLA_Obj A, FLA_Obj B, fla_trmm_t *cntl)

Function Documentation

FLA_Error FLA_Trmm_ruh_blk_var1 ( FLA_Diag  diagA,
FLA_Obj  alpha,
FLA_Obj  A,
FLA_Obj  B,
fla_trmm_t cntl 
)

References FLA_Cont_with_1x3_to_1x2(), FLA_Cont_with_3x3_to_2x2(), FLA_Determine_blocksize(), FLA_Gemm_internal(), FLA_Obj_length(), FLA_ONE, FLA_Part_1x2(), FLA_Part_2x2(), FLA_Repart_1x2_to_1x3(), FLA_Repart_2x2_to_3x3(), and FLA_Trmm_internal().

Referenced by FLA_Trmm_ruh().

00038 {
00039   FLA_Obj ATL,   ATR,      A00, A01, A02, 
00040           ABL,   ABR,      A10, A11, A12,
00041                            A20, A21, A22;
00042 
00043   FLA_Obj BL,    BR,       B0,  B1,  B2;
00044 
00045   dim_t b;
00046 
00047   FLA_Part_2x2( A,    &ATL, &ATR,
00048                       &ABL, &ABR,     0, 0, FLA_TL );
00049 
00050   FLA_Part_1x2( B,    &BL,  &BR,      0, FLA_LEFT );
00051 
00052   while ( FLA_Obj_length( ATL ) < FLA_Obj_length( A ) ){
00053 
00054     b = FLA_Determine_blocksize( ABR, FLA_BR, FLA_Cntl_blocksize( cntl ) );
00055 
00056     FLA_Repart_2x2_to_3x3( ATL, /**/ ATR,       &A00, /**/ &A01, &A02,
00057                         /* ************* */   /* ******************** */
00058                                                 &A10, /**/ &A11, &A12,
00059                            ABL, /**/ ABR,       &A20, /**/ &A21, &A22,
00060                            b, b, FLA_BR );
00061 
00062     FLA_Repart_1x2_to_1x3( BL,  /**/ BR,        &B0, /**/ &B1, &B2,
00063                            b, FLA_RIGHT );
00064 
00065     /*------------------------------------------------------------*/
00066 
00067     /* B1 = B1 * triu( A11 )'; */
00068     FLA_Trmm_internal( FLA_RIGHT, FLA_UPPER_TRIANGULAR, FLA_CONJ_TRANSPOSE, diagA,
00069                        alpha, A11, B1,
00070                        FLA_Cntl_sub_trmm( cntl ) );
00071 
00072     /* B1 = B1 + B2 * A12'; */
00073     FLA_Gemm_internal( FLA_NO_TRANSPOSE, FLA_CONJ_TRANSPOSE,
00074                        FLA_ONE, B2, A12, FLA_ONE, B1,
00075                        FLA_Cntl_sub_gemm( cntl ) );
00076 
00077     /*------------------------------------------------------------*/
00078 
00079     FLA_Cont_with_3x3_to_2x2( &ATL, /**/ &ATR,       A00, A01, /**/ A02,
00080                                                      A10, A11, /**/ A12,
00081                             /* ************** */  /* ****************** */
00082                               &ABL, /**/ &ABR,       A20, A21, /**/ A22,
00083                               FLA_TL );
00084 
00085     FLA_Cont_with_1x3_to_1x2( &BL,  /**/ &BR,        B0, B1, /**/ B2,
00086                               FLA_LEFT );
00087 
00088   }
00089 
00090   return FLA_SUCCESS;
00091 }


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