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4fa4cb0734
Details: - Removed four trailing spaces after "BLIS" that occurs in most files' commented-out license headers. - Added UT copyright lines to some files. (These files previously had only AMD copyright lines but were contributed to by both UT and AMD.) - In some files' copyright lines, expanded 'The University of Texas' to 'The University of Texas at Austin'. - Fixed various typos/misspellings in some license headers.
268 lines
6.7 KiB
C
268 lines
6.7 KiB
C
/*
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BLIS
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An object-based framework for developing high-performance BLAS-like
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libraries.
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Copyright (C) 2014, The University of Texas at Austin
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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- Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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- Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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- Neither the name of The University of Texas at Austin nor the names
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of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "blis.h"
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// NOTE: This is one of the few functions in BLIS that is defined
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// with heterogeneous type support. This is done so that we have
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// an operation that can be used to typecast (copy-cast) a matrix
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// of one datatype to a scalar of another datatype.
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typedef void (*FUNCPTR_T)
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(
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trans_t transa,
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dim_t m,
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dim_t n,
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void* restrict a, inc_t rs_a, inc_t cs_a,
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void* restrict b, inc_t rs_b, inc_t cs_b
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);
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static FUNCPTR_T GENARRAY2_ALL(ftypes,castm);
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//
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// Define object-based interface.
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//
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void bli_castm
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(
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obj_t* a,
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obj_t* b
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)
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{
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num_t dt_a = bli_obj_dt( a );
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num_t dt_b = bli_obj_dt( b );
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trans_t transa = bli_obj_conjtrans_status( a );
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dim_t m = bli_obj_length( b );
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dim_t n = bli_obj_width( b );
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void* buf_a = bli_obj_buffer_at_off( a );
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inc_t rs_a = bli_obj_row_stride( a );
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inc_t cs_a = bli_obj_col_stride( a );
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void* buf_b = bli_obj_buffer_at_off( b );
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inc_t rs_b = bli_obj_row_stride( b );
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inc_t cs_b = bli_obj_col_stride( b );
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FUNCPTR_T f;
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// Check parameters.
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if ( bli_error_checking_is_enabled() )
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bli_castm_check( a, b );
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#if 0
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if ( bli_obj_dt( a ) == bli_obj_dt( b ) )
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{
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// If a and b share the same datatype, we can simply use copym.
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bli_copym( a, b );
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return;
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}
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#endif
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// Index into the type combination array to extract the correct
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// function pointer.
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f = ftypes[dt_a][dt_b];
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// Invoke the void pointer-based function.
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f
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(
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transa,
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m,
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n,
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buf_a, rs_a, cs_a,
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buf_b, rs_b, cs_b
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);
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}
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// -----------------------------------------------------------------------------
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//
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// Define BLAS-like interfaces with typed operands.
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//
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#undef GENTFUNC2
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#define GENTFUNC2( ctype_a, ctype_b, cha, chb, opname ) \
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\
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void PASTEMAC2(cha,chb,opname) \
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( \
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trans_t transa, \
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dim_t m, \
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dim_t n, \
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void* restrict a, inc_t rs_a, inc_t cs_a, \
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void* restrict b, inc_t rs_b, inc_t cs_b \
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) \
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{ \
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ctype_a* restrict a_cast = a; \
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ctype_b* restrict b_cast = b; \
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conj_t conja; \
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dim_t n_iter; \
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dim_t n_elem; \
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inc_t lda, inca; \
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inc_t ldb, incb; \
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dim_t j, i; \
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\
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/* Set various loop parameters. */ \
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bli_set_dims_incs_2m \
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( \
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transa, \
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m, n, rs_a, cs_a, rs_b, cs_b, \
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&n_elem, &n_iter, &inca, &lda, &incb, &ldb \
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); \
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\
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/* Extract the conjugation component from the transa parameter. */ \
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conja = bli_extract_conj( transa ); \
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\
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if ( bli_is_conj( conja ) ) \
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{ \
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if ( inca == 1 && incb == 1 ) \
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{ \
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for ( j = 0; j < n_iter; ++j ) \
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{ \
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ctype_a* restrict a1 = a_cast + (j )*lda + (0 )*inca; \
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ctype_b* restrict b1 = b_cast + (j )*ldb + (0 )*incb; \
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\
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for ( i = 0; i < n_elem; ++i ) \
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{ \
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PASTEMAC2(cha,chb,copyjs)( a1[i], b1[i] ); \
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} \
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} \
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} \
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else \
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{ \
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for ( j = 0; j < n_iter; ++j ) \
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{ \
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ctype_a* restrict a1 = a_cast + (j )*lda + (0 )*inca; \
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ctype_b* restrict b1 = b_cast + (j )*ldb + (0 )*incb; \
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\
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for ( i = 0; i < n_elem; ++i ) \
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{ \
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PASTEMAC2(cha,chb,copyjs)( *a1, *b1 ); \
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\
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a1 += inca; \
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b1 += incb; \
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} \
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} \
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} \
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} \
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else \
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{ \
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if ( inca == 1 && incb == 1 ) \
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{ \
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for ( j = 0; j < n_iter; ++j ) \
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{ \
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ctype_a* restrict a1 = a_cast + (j )*lda + (0 )*inca; \
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ctype_b* restrict b1 = b_cast + (j )*ldb + (0 )*incb; \
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\
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for ( i = 0; i < n_elem; ++i ) \
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{ \
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PASTEMAC2(cha,chb,copys)( a1[i], b1[i] ); \
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} \
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} \
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} \
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else \
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{ \
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for ( j = 0; j < n_iter; ++j ) \
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{ \
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ctype_a* restrict a1 = a_cast + (j )*lda + (0 )*inca; \
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ctype_b* restrict b1 = b_cast + (j )*ldb + (0 )*incb; \
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\
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for ( i = 0; i < n_elem; ++i ) \
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{ \
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PASTEMAC2(cha,chb,copys)( *a1, *b1 ); \
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\
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a1 += inca; \
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b1 += incb; \
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} \
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} \
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} \
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} \
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}
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INSERT_GENTFUNC2_BASIC0( castm )
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INSERT_GENTFUNC2_MIXDP0( castm )
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// -----------------------------------------------------------------------------
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//
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// Define object-based _check() function.
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//
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void bli_castm_check
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(
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obj_t* a,
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obj_t* b
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)
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{
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err_t e_val;
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// Check object datatypes.
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e_val = bli_check_floating_object( a );
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bli_check_error_code( e_val );
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e_val = bli_check_floating_object( b );
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bli_check_error_code( e_val );
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// Check structure.
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// NOTE: We enforce general structure for now in order to simplify the
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// implementation.
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bli_check_general_object( a );
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bli_check_error_code( e_val );
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bli_check_general_object( b );
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bli_check_error_code( e_val );
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// Check object dimensions.
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e_val = bli_check_matrix_object( a );
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bli_check_error_code( e_val );
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e_val = bli_check_matrix_object( b );
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bli_check_error_code( e_val );
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e_val = bli_check_conformal_dims( a, b );
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bli_check_error_code( e_val );
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// Check object buffers (for non-NULLness).
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e_val = bli_check_object_buffer( a );
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bli_check_error_code( e_val );
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e_val = bli_check_object_buffer( b );
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bli_check_error_code( e_val );
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}
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