Functions | |
FLA_Error | FLA_Apply_Q_UT_UD_lhc_blk_var1 (FLA_Obj D, FLA_Obj T, FLA_Obj W1, FLA_Obj C, FLA_Obj E, fla_apqutud_t *cntl) |
FLA_Error FLA_Apply_Q_UT_UD_lhc_blk_var1 | ( | FLA_Obj | D, | |
FLA_Obj | T, | |||
FLA_Obj | W1, | |||
FLA_Obj | C, | |||
FLA_Obj | E, | |||
fla_apqutud_t * | cntl | |||
) |
References FLA_Axpy_internal(), FLA_Cont_with_1x3_to_1x2(), FLA_Cont_with_3x1_to_2x1(), FLA_Copy_internal(), FLA_Determine_blocksize(), FLA_Gemm_internal(), FLA_MINUS_ONE, FLA_Obj_width(), FLA_ONE, FLA_Part_1x2(), FLA_Part_2x1(), FLA_Part_2x2(), FLA_Repart_1x2_to_1x3(), FLA_Repart_2x1_to_3x1(), and FLA_Trsm_internal().
Referenced by FLA_Apply_Q_UT_UD_lhc().
00037 { 00038 FLA_Obj DL, DR, D0, D1, D2; 00039 00040 FLA_Obj TL, TR, T0, T1, T2; 00041 00042 FLA_Obj T1T, 00043 T2B; 00044 00045 FLA_Obj CT, C0, 00046 CB, C1, 00047 C2; 00048 00049 FLA_Obj W1TL, W1TR, 00050 W1BL, W1BR; 00051 00052 dim_t b; 00053 00054 FLA_Part_1x2( D, &DL, &DR, 0, FLA_LEFT ); 00055 00056 FLA_Part_1x2( T, &TL, &TR, 0, FLA_LEFT ); 00057 00058 FLA_Part_2x1( C, &CT, 00059 &CB, 0, FLA_TOP ); 00060 00061 while ( FLA_Obj_width( DL ) < FLA_Obj_width( D ) ){ 00062 00063 b = FLA_Determine_blocksize( DR, FLA_RIGHT, FLA_Cntl_blocksize( cntl ) ); 00064 00065 FLA_Repart_1x2_to_1x3( DL, /**/ DR, &D0, /**/ &D1, &D2, 00066 b, FLA_RIGHT ); 00067 00068 FLA_Repart_1x2_to_1x3( TL, /**/ TR, &T0, /**/ &T1, &T2, 00069 b, FLA_RIGHT ); 00070 00071 FLA_Repart_2x1_to_3x1( CT, &C0, 00072 /* ** */ /* ** */ 00073 &C1, 00074 CB, &C2, b, FLA_BOTTOM ); 00075 00076 /*------------------------------------------------------------*/ 00077 00078 FLA_Part_2x1( T1, &T1T, 00079 &T2B, b, FLA_TOP ); 00080 00081 // W1T = FLA_Top_part( W1, b ); 00082 // W1TL = FLA_Left_part( W1T, FLA_Obj_width( C1 ) ); 00083 FLA_Part_2x2( W1, &W1TL, &W1TR, 00084 &W1BL, &W1BR, b, FLA_Obj_width( C1 ), FLA_TL ); 00085 00086 // W1TL = C1; 00087 FLA_Copy_internal( C1, W1TL, 00088 FLA_Cntl_sub_copy( cntl ) ); 00089 00090 // W1TL = inv( triu( T1T ) )' * ( C1 + D1' * E ); 00091 00092 FLA_Gemm_internal( FLA_CONJ_TRANSPOSE, FLA_NO_TRANSPOSE, 00093 FLA_ONE, D1, E, FLA_ONE, W1TL, 00094 FLA_Cntl_sub_gemm1( cntl ) ); 00095 00096 FLA_Trsm_internal( FLA_LEFT, FLA_UPPER_TRIANGULAR, 00097 FLA_CONJ_TRANSPOSE, FLA_NONUNIT_DIAG, 00098 FLA_ONE, T1T, W1TL, 00099 FLA_Cntl_sub_trsm( cntl ) ); 00100 00101 // C1 = C1 - W1TL; 00102 // E = E - D1 * W1TL; 00103 00104 FLA_Axpy_internal( FLA_MINUS_ONE, W1TL, C1, 00105 FLA_Cntl_sub_axpy( cntl ) ); 00106 00107 FLA_Gemm_internal( FLA_NO_TRANSPOSE, FLA_NO_TRANSPOSE, 00108 FLA_MINUS_ONE, D1, W1TL, FLA_ONE, E, 00109 FLA_Cntl_sub_gemm2( cntl ) ); 00110 00111 /*------------------------------------------------------------*/ 00112 00113 FLA_Cont_with_1x3_to_1x2( &DL, /**/ &DR, D0, D1, /**/ D2, 00114 FLA_LEFT ); 00115 00116 FLA_Cont_with_1x3_to_1x2( &TL, /**/ &TR, T0, T1, /**/ T2, 00117 FLA_LEFT ); 00118 00119 FLA_Cont_with_3x1_to_2x1( &CT, C0, 00120 C1, 00121 /* ** */ /* ** */ 00122 &CB, C2, FLA_TOP ); 00123 } 00124 00125 return FLA_SUCCESS; 00126 }