/* BLIS An object-based framework for developing high-performance BLAS-like libraries. Copyright (C) 2014, The University of Texas at Austin Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. - Neither the name(s) of the copyright holder(s) nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "blis.h" #undef GENTFUNC #define GENTFUNC( ctype, ch, varname ) \ \ void PASTEMAC(ch,varname) \ ( \ uplo_t uploa, \ trans_t transa, \ diag_t diaga, \ dim_t m, \ ctype* alpha, \ ctype* a, inc_t rs_a, inc_t cs_a, \ ctype* x, inc_t incx, \ cntx_t* cntx \ ) \ { \ const num_t dt = PASTEMAC(ch,type); \ \ ctype* minus_one = PASTEMAC(ch,m1); \ ctype* A01; \ ctype* A11; \ ctype* A21; \ ctype* a01; \ ctype* alpha11; \ ctype* a21; \ ctype* x0; \ ctype* x1; \ ctype* x2; \ ctype* x01; \ ctype* chi11; \ ctype* x21; \ ctype alpha11_conj; \ ctype minus_chi11; \ dim_t iter, i, k, j, l; \ dim_t b_fuse, f; \ dim_t n_ahead, f_ahead; \ inc_t rs_at, cs_at; \ uplo_t uploa_trans; \ conj_t conja; \ \ /* x = alpha * x; */ \ PASTEMAC2(ch,scalv,BLIS_TAPI_EX_SUF) \ ( \ BLIS_NO_CONJUGATE, \ m, \ alpha, \ x, incx, \ cntx, \ NULL \ ); \ \ if ( bli_does_notrans( transa ) ) \ { \ rs_at = rs_a; \ cs_at = cs_a; \ uploa_trans = uploa; \ } \ else /* if ( bli_does_trans( transa ) ) */ \ { \ rs_at = cs_a; \ cs_at = rs_a; \ uploa_trans = bli_uplo_toggled( uploa ); \ } \ \ conja = bli_extract_conj( transa ); \ \ /* Query the context for the kernel function pointer and fusing factor. */ \ axpyf_ker_ft kfp_af = bli_cntx_get_ukr_dt( dt, BLIS_AXPYF_KER, cntx ); \ b_fuse = bli_cntx_get_blksz_def_dt( dt, BLIS_AF, cntx ); \ \ /* We reduce all of the possible cases down to just lower/upper. */ \ if ( bli_is_upper( uploa_trans ) ) \ { \ for ( iter = 0; iter < m; iter += f ) \ { \ f = bli_determine_blocksize_dim_b( iter, m, b_fuse ); \ i = m - iter - f; \ n_ahead = i; \ A11 = a + (i )*rs_at + (i )*cs_at; \ A01 = a + (0 )*rs_at + (i )*cs_at; \ x1 = x + (i )*incx; \ x0 = x + (0 )*incx; \ \ /* x1 = x1 / triu( A11 ); */ \ for ( k = 0; k < f; ++k ) \ { \ l = f - k - 1; \ f_ahead = l; \ alpha11 = A11 + (l )*rs_at + (l )*cs_at; \ a01 = A11 + (0 )*rs_at + (l )*cs_at; \ chi11 = x1 + (l )*incx; \ x01 = x1 + (0 )*incx; \ \ /* chi11 = chi11 / alpha11; */ \ if ( bli_is_nonunit_diag( diaga ) ) \ { \ PASTEMAC(ch,copycjs)( conja, *alpha11, alpha11_conj ); \ PASTEMAC(ch,invscals)( alpha11_conj, *chi11 ); \ } \ \ /* x01 = x01 - chi11 * a01; */ \ PASTEMAC(ch,neg2s)( *chi11, minus_chi11 ); \ if ( bli_is_conj( conja ) ) \ { \ for ( j = 0; j < f_ahead; ++j ) \ PASTEMAC(ch,axpyjs)( minus_chi11, *(a01 + j*rs_at), *(x01 + j*incx) ); \ } \ else \ { \ for ( j = 0; j < f_ahead; ++j ) \ PASTEMAC(ch,axpys)( minus_chi11, *(a01 + j*rs_at), *(x01 + j*incx) ); \ } \ } \ \ /* x0 = x0 - A01 * x1; */ \ kfp_af \ ( \ conja, \ BLIS_NO_CONJUGATE, \ n_ahead, \ f, \ minus_one, \ A01, rs_at, cs_at, \ x1, incx, \ x0, incx, \ cntx \ ); \ } \ } \ else /* if ( bli_is_lower( uploa_trans ) ) */ \ { \ for ( iter = 0; iter < m; iter += f ) \ { \ f = bli_determine_blocksize_dim_f( iter, m, b_fuse ); \ i = iter; \ n_ahead = m - iter - f; \ A11 = a + (i )*rs_at + (i )*cs_at; \ A21 = a + (i+f)*rs_at + (i )*cs_at; \ x1 = x + (i )*incx; \ x2 = x + (i+f)*incx; \ \ /* x1 = x1 / tril( A11 ); */ \ for ( k = 0; k < f; ++k ) \ { \ l = k; \ f_ahead = f - k - 1; \ alpha11 = A11 + (l )*rs_at + (l )*cs_at; \ a21 = A11 + (l+1)*rs_at + (l )*cs_at; \ chi11 = x1 + (l )*incx; \ x21 = x1 + (l+1)*incx; \ \ /* chi11 = chi11 / alpha11; */ \ if ( bli_is_nonunit_diag( diaga ) ) \ { \ PASTEMAC(ch,copycjs)( conja, *alpha11, alpha11_conj ); \ PASTEMAC(ch,invscals)( alpha11_conj, *chi11 ); \ } \ \ /* x21 = x21 - chi11 * a21; */ \ PASTEMAC(ch,neg2s)( *chi11, minus_chi11 ); \ if ( bli_is_conj( conja ) ) \ { \ for ( j = 0; j < f_ahead; ++j ) \ PASTEMAC(ch,axpyjs)( minus_chi11, *(a21 + j*rs_at), *(x21 + j*incx) ); \ } \ else \ { \ for ( j = 0; j < f_ahead; ++j ) \ PASTEMAC(ch,axpys)( minus_chi11, *(a21 + j*rs_at), *(x21 + j*incx) ); \ } \ } \ \ /* x2 = x2 - A21 * x1; */ \ kfp_af \ ( \ conja, \ BLIS_NO_CONJUGATE, \ n_ahead, \ f, \ minus_one, \ A21, rs_at, cs_at, \ x1, incx, \ x2, incx, \ cntx \ ); \ } \ } \ } INSERT_GENTFUNC_BASIC( trsv_unf_var2 )