libflame
revision_anchor
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Functions | |
FLA_Error | FLA_Apply_Q_UT_inc_lnfc_blk_var1 (FLA_Obj A, FLA_Obj TW, FLA_Obj W1, FLA_Obj B, fla_apqutinc_t *cntl) |
FLA_Error FLA_Apply_Q_UT_inc_lnfc_blk_var1 | ( | FLA_Obj | A, |
FLA_Obj | TW, | ||
FLA_Obj | W1, | ||
FLA_Obj | B, | ||
fla_apqutinc_t * | cntl | ||
) |
References FLA_Apply_Q2_UT_internal(), FLA_Apply_Q_UT_internal(), FLA_Cont_with_3x1_to_2x1(), FLA_Cont_with_3x3_to_2x2(), FLA_Determine_blocksize(), FLA_Obj_length(), FLA_Obj_min_dim(), FLA_Obj_width(), FLA_Part_2x1(), FLA_Part_2x2(), FLA_Repart_2x1_to_3x1(), and FLA_Repart_2x2_to_3x3().
Referenced by FLA_Apply_Q_UT_inc_lnfc().
{ FLA_Obj ATL, ATR, A00, A01, A02, ABL, ABR, A10, A11, A12, A20, A21, A22; FLA_Obj TTL, WTR, T00, W01, W02, TBL, TBR, T10, T11, W12, T20, T21, T22; FLA_Obj BT, B0, BB, B1, B2; dim_t b; dim_t m_BR, n_BR; // If m > n, then we have to initialize our partitionings carefully so // that we begin in the proper location in A and B (since we traverse // matrix A from BR to TL). if ( FLA_Obj_length( A ) > FLA_Obj_width( A ) ) { m_BR = FLA_Obj_length( A ) - FLA_Obj_width( A ); n_BR = 0; } else { m_BR = 0; n_BR = 0; } FLA_Part_2x2( A, &ATL, &ATR, &ABL, &ABR, m_BR, n_BR, FLA_BR ); FLA_Part_2x2( TW, &TTL, &WTR, &TBL, &TBR, m_BR, n_BR, FLA_BR ); FLA_Part_2x1( B, &BT, &BB, m_BR, FLA_BOTTOM ); while ( FLA_Obj_min_dim( ATL ) > 0 ){ b = FLA_Determine_blocksize( ATL, FLA_TL, FLA_Cntl_blocksize( cntl ) ); FLA_Repart_2x2_to_3x3( ATL, /**/ ATR, &A00, &A01, /**/ &A02, &A10, &A11, /**/ &A12, /* ************* */ /* ******************** */ ABL, /**/ ABR, &A20, &A21, /**/ &A22, b, b, FLA_TL ); FLA_Repart_2x2_to_3x3( TTL, /**/ WTR, &T00, &W01, /**/ &W02, &T10, &T11, /**/ &W12, /* ************* */ /* ******************** */ TBL, /**/ TBR, &T20, &T21, /**/ &T22, b, b, FLA_TL ); FLA_Repart_2x1_to_3x1( BT, &B0, &B1, /* ** */ /* ** */ BB, &B2, b, FLA_TOP ); /*------------------------------------------------------------*/ /* Apply Q^H to B1 and B2 from the left: / B1 \ = Q^H * / B1 \ \ B2 / \ B2 / where Q is formed from A21 and T21. */ FLA_Apply_Q2_UT_internal( FLA_LEFT, FLA_NO_TRANSPOSE, FLA_FORWARD, FLA_COLUMNWISE, A21, T21, W1, B1, B2, FLA_Cntl_sub_apq2ut( cntl ) ); /* Apply Q^H to B1 from the left: B1 = Q^H * B1 where Q is formed from A11 and T11. Note that W1 refers to a row-panel of blocks where each block refers to an nb_alg-by-b row-panel of workspace. */ FLA_Apply_Q_UT_internal( FLA_LEFT, FLA_NO_TRANSPOSE, FLA_FORWARD, FLA_COLUMNWISE, A11, T11, W1, B1, FLA_Cntl_sub_apqut( cntl ) ); /*------------------------------------------------------------*/ FLA_Cont_with_3x3_to_2x2( &ATL, /**/ &ATR, A00, /**/ A01, A02, /* ************** */ /* ****************** */ A10, /**/ A11, A12, &ABL, /**/ &ABR, A20, /**/ A21, A22, FLA_BR ); FLA_Cont_with_3x3_to_2x2( &TTL, /**/ &WTR, T00, /**/ W01, W02, /* ************** */ /* ****************** */ T10, /**/ T11, W12, &TBL, /**/ &TBR, T20, /**/ T21, T22, FLA_BR ); FLA_Cont_with_3x1_to_2x1( &BT, B0, /* ** */ /* ** */ B1, &BB, B2, FLA_BOTTOM ); } return FLA_SUCCESS; }