FLA_Syr2k_ut_blk_var1.c File Reference

(r)


Functions

FLA_Error FLA_Syr2k_ut_blk_var1 (FLA_Obj alpha, FLA_Obj A, FLA_Obj B, FLA_Obj beta, FLA_Obj C, fla_syr2k_t *cntl)

Function Documentation

FLA_Error FLA_Syr2k_ut_blk_var1 ( FLA_Obj  alpha,
FLA_Obj  A,
FLA_Obj  B,
FLA_Obj  beta,
FLA_Obj  C,
fla_syr2k_t cntl 
)

References FLA_Cont_with_1x3_to_1x2(), FLA_Cont_with_3x3_to_2x2(), FLA_Determine_blocksize(), FLA_Gemm_internal(), FLA_Obj_width(), FLA_ONE, FLA_Part_1x2(), FLA_Part_2x2(), FLA_Repart_1x2_to_1x3(), FLA_Repart_2x2_to_3x3(), and FLA_Syr2k_internal().

Referenced by FLA_Syr2k_ut().

00038 {
00039   FLA_Obj AL,    AR,       A0,  A1,  A2;
00040 
00041   FLA_Obj BL,    BR,       B0,  B1,  B2;
00042 
00043   FLA_Obj CTL,   CTR,      C00, C01, C02, 
00044           CBL,   CBR,      C10, C11, C12,
00045                            C20, C21, C22;
00046 
00047   dim_t b;
00048 
00049   FLA_Part_1x2( A,    &AL,  &AR,      0, FLA_LEFT );
00050 
00051   FLA_Part_1x2( B,    &BL,  &BR,      0, FLA_LEFT );
00052 
00053   FLA_Part_2x2( C,    &CTL, &CTR,
00054                       &CBL, &CBR,     0, 0, FLA_TL );
00055 
00056   while ( FLA_Obj_width( AL ) < FLA_Obj_width( A ) ){
00057 
00058     b = FLA_Determine_blocksize( AR, FLA_RIGHT, FLA_Cntl_blocksize( cntl ) );
00059 
00060     FLA_Repart_1x2_to_1x3( AL,  /**/ AR,        &A0, /**/ &A1, &A2,
00061                            b, FLA_RIGHT );
00062 
00063     FLA_Repart_1x2_to_1x3( BL,  /**/ BR,        &B0, /**/ &B1, &B2,
00064                            b, FLA_RIGHT );
00065 
00066     FLA_Repart_2x2_to_3x3( CTL, /**/ CTR,       &C00, /**/ &C01, &C02,
00067                         /* ************* */   /* ******************** */
00068                                                 &C10, /**/ &C11, &C12,
00069                            CBL, /**/ CBR,       &C20, /**/ &C21, &C22,
00070                            b, b, FLA_BR );
00071 
00072     /*------------------------------------------------------------*/
00073 
00074     /* C12 = C12 + A1' * B2 */
00075     FLA_Gemm_internal( FLA_TRANSPOSE, FLA_NO_TRANSPOSE, 
00076                        alpha, A1, B2, beta, C12,
00077                        FLA_Cntl_sub_gemm1( cntl ) );
00078 
00079     /* C12 = C12 + B1' * A2 */
00080     FLA_Gemm_internal( FLA_TRANSPOSE, FLA_NO_TRANSPOSE, 
00081                        alpha, B1, A2, FLA_ONE, C12,
00082                        FLA_Cntl_sub_gemm2( cntl ) );
00083 
00084     /* C11 = C11 + A1' * B1 + B1' * A1 */
00085     FLA_Syr2k_internal( FLA_UPPER_TRIANGULAR, FLA_TRANSPOSE, 
00086                         alpha, A1, B1, beta, C11,
00087                         FLA_Cntl_sub_syr2k( cntl ) );
00088 
00089     /*------------------------------------------------------------*/
00090 
00091     FLA_Cont_with_1x3_to_1x2( &AL,  /**/ &AR,        A0, A1, /**/ A2,
00092                               FLA_LEFT );
00093 
00094     FLA_Cont_with_1x3_to_1x2( &BL,  /**/ &BR,        B0, B1, /**/ B2,
00095                               FLA_LEFT );
00096 
00097     FLA_Cont_with_3x3_to_2x2( &CTL, /**/ &CTR,       C00, C01, /**/ C02,
00098                                                      C10, C11, /**/ C12,
00099                             /* ************** */  /* ****************** */
00100                               &CBL, /**/ &CBR,       C20, C21, /**/ C22,
00101                               FLA_TL );
00102 
00103   }
00104 
00105   return FLA_SUCCESS;
00106 }


Generated on Mon Jul 6 05:45:55 2009 for libflame by  doxygen 1.5.9