FLA_Symm_rl_blk_var4.c File Reference

(r)


Functions

FLA_Error FLA_Symm_rl_blk_var4 (FLA_Obj alpha, FLA_Obj A, FLA_Obj B, FLA_Obj beta, FLA_Obj C, fla_symm_t *cntl)

Function Documentation

FLA_Error FLA_Symm_rl_blk_var4 ( FLA_Obj  alpha,
FLA_Obj  A,
FLA_Obj  B,
FLA_Obj  beta,
FLA_Obj  C,
fla_symm_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_Symm_internal().

Referenced by FLA_Symm_rl().

00036 {
00037   FLA_Obj ATL,   ATR,      A00, A01, A02, 
00038           ABL,   ABR,      A10, A11, A12,
00039                            A20, A21, A22;
00040 
00041   FLA_Obj BL,    BR,       B0,  B1,  B2;
00042 
00043   FLA_Obj CL,    CR,       C0,  C1,  C2;
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   FLA_Part_1x2( C,    &CL,  &CR,      0, FLA_LEFT );
00053 
00054   while ( FLA_Obj_length( ATL ) < FLA_Obj_length( A ) ){
00055 
00056     b = FLA_Determine_blocksize( ABR, FLA_BR, FLA_Cntl_blocksize( cntl ) );
00057 
00058     FLA_Repart_2x2_to_3x3( ATL, /**/ ATR,       &A00, /**/ &A01, &A02,
00059                         /* ************* */   /* ******************** */
00060                                                 &A10, /**/ &A11, &A12,
00061                            ABL, /**/ ABR,       &A20, /**/ &A21, &A22,
00062                            b, b, FLA_BR );
00063 
00064     FLA_Repart_1x2_to_1x3( BL,  /**/ BR,        &B0, /**/ &B1, &B2,
00065                            b, FLA_RIGHT );
00066 
00067     FLA_Repart_1x2_to_1x3( CL,  /**/ CR,        &C0, /**/ &C1, &C2,
00068                            b, FLA_RIGHT );
00069 
00070     /*------------------------------------------------------------*/
00071 
00072     /* C0 = C0 + B1 * A10 */
00073     FLA_Gemm_internal( FLA_NO_TRANSPOSE, FLA_NO_TRANSPOSE, 
00074                        alpha, B1, A10, FLA_ONE, C0,
00075                        FLA_Cntl_sub_gemm1( cntl ) );
00076     
00077     /* C1 = C1 + B1 * A11 */
00078     FLA_Symm_internal( FLA_RIGHT, FLA_LOWER_TRIANGULAR, 
00079                        alpha, A11, B1, beta, C1,
00080                        FLA_Cntl_sub_symm( cntl ) );
00081 
00082     /* C2 = C2 + B1 * A21' */
00083     FLA_Gemm_internal( FLA_NO_TRANSPOSE, FLA_TRANSPOSE, 
00084                        alpha, B1, A21, FLA_ONE, C2,
00085                        FLA_Cntl_sub_gemm2( cntl ) );
00086 
00087     /*------------------------------------------------------------*/
00088 
00089     FLA_Cont_with_3x3_to_2x2( &ATL, /**/ &ATR,       A00, A01, /**/ A02,
00090                                                      A10, A11, /**/ A12,
00091                             /* ************** */  /* ****************** */
00092                               &ABL, /**/ &ABR,       A20, A21, /**/ A22,
00093                               FLA_TL );
00094 
00095     FLA_Cont_with_1x3_to_1x2( &BL,  /**/ &BR,        B0, B1, /**/ B2,
00096                               FLA_LEFT );
00097 
00098     FLA_Cont_with_1x3_to_1x2( &CL,  /**/ &CR,        C0, C1, /**/ C2,
00099                               FLA_LEFT );
00100 
00101   }
00102 
00103   return FLA_SUCCESS;
00104 }


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