FLA_Trmm_rut_blk_var2.c File Reference

(r)


Functions

FLA_Error FLA_Trmm_rut_blk_var2 (FLA_Diag diagA, FLA_Obj alpha, FLA_Obj A, FLA_Obj B, fla_trmm_t *cntl)

Function Documentation

FLA_Error FLA_Trmm_rut_blk_var2 ( 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_rut().

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


Generated on Mon Jul 6 05:45:56 2009 for libflame by  doxygen 1.5.9