mirror of
https://github.com/amd/blis.git
synced 2026-04-29 03:51:11 +00:00
5e54f46ccb
Details: - Added a 'template' configuration, which contains stub implementations of the level 1, 1f, and 3 kernels with one datatype implemented in C for each, with lots of in-file comments and documentation. - Modified some variable/parameter names for some 1/1f operations. (e.g. renaming vector length parameter from m to n.) - Moved level-1f fusing factors from axpyf, dotxf, and dotxaxpyf header files to bli_kernel.h. - Modifed test suite to print out fusing factors for axpyf, dotxf, and dotxaxpyf, as well as the default fusing factor (which are all equal in the reference and template implementations). - Cleaned up some sloppiness in the level-1f unb_var1.c files whereby these reference variants were implemented in terms of front-end routines rather that directly in terms of the kernels. (For example, axpy2v was implemented as two calls to axpyv rather than two calls to AXPYV_KERNEL.) - Changed the interface to dotxf so that it matches that of axpyf, in that A is assumed to be m x b_n in both cases, and for dotxf A is actually used as A^T. - Minor variable naming and comment changes to reference micro-kernels in frame/3/gemm/ukernels and frame/3/trsm/ukernels.
199 lines
6.5 KiB
C
199 lines
6.5 KiB
C
/*
|
|
|
|
BLIS
|
|
An object-based framework for developing high-performance BLAS-like
|
|
libraries.
|
|
|
|
Copyright (C) 2013, The University of Texas
|
|
|
|
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 of The University of Texas 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"
|
|
|
|
#define FUNCPTR_T gemv_fp
|
|
|
|
typedef void (*FUNCPTR_T)(
|
|
trans_t transa,
|
|
conj_t conjx,
|
|
dim_t m,
|
|
dim_t n,
|
|
void* alpha,
|
|
void* a, inc_t rs_a, inc_t cs_a,
|
|
void* x, inc_t incx,
|
|
void* beta,
|
|
void* y, inc_t incy
|
|
);
|
|
|
|
// If some mixed datatype functions will not be compiled, we initialize
|
|
// the corresponding elements of the function array to NULL.
|
|
#ifdef BLIS_ENABLE_MIXED_PRECISION_SUPPORT
|
|
static FUNCPTR_T GENARRAY3_ALL(ftypes,gemv_unf_var1);
|
|
#else
|
|
#ifdef BLIS_ENABLE_MIXED_DOMAIN_SUPPORT
|
|
static FUNCPTR_T GENARRAY3_EXT(ftypes,gemv_unf_var1);
|
|
#else
|
|
static FUNCPTR_T GENARRAY3_MIN(ftypes,gemv_unf_var1);
|
|
#endif
|
|
#endif
|
|
|
|
|
|
void bli_gemv_unf_var1( obj_t* alpha,
|
|
obj_t* a,
|
|
obj_t* x,
|
|
obj_t* beta,
|
|
obj_t* y,
|
|
gemv_t* cntl )
|
|
{
|
|
num_t dt_a = bli_obj_datatype( *a );
|
|
num_t dt_x = bli_obj_datatype( *x );
|
|
num_t dt_y = bli_obj_datatype( *y );
|
|
|
|
conj_t transa = bli_obj_conjtrans_status( *a );
|
|
conj_t conjx = bli_obj_conj_status( *x );
|
|
|
|
dim_t m = bli_obj_length( *a );
|
|
dim_t n = bli_obj_width( *a );
|
|
|
|
void* buf_a = bli_obj_buffer_at_off( *a );
|
|
inc_t rs_a = bli_obj_row_stride( *a );
|
|
inc_t cs_a = bli_obj_col_stride( *a );
|
|
|
|
void* buf_x = bli_obj_buffer_at_off( *x );
|
|
inc_t incx = bli_obj_vector_inc( *x );
|
|
|
|
void* buf_y = bli_obj_buffer_at_off( *y );
|
|
inc_t incy = bli_obj_vector_inc( *y );
|
|
|
|
num_t dt_alpha;
|
|
void* buf_alpha;
|
|
|
|
num_t dt_beta;
|
|
void* buf_beta;
|
|
|
|
FUNCPTR_T f;
|
|
|
|
// The datatype of alpha MUST be the type union of a and x. This is to
|
|
// prevent any unnecessary loss of information during computation.
|
|
dt_alpha = bli_datatype_union( dt_a, dt_x );
|
|
buf_alpha = bli_obj_scalar_buffer( dt_alpha, *alpha );
|
|
|
|
// The datatype of beta MUST be the same as the datatype of y.
|
|
dt_beta = dt_y;
|
|
buf_beta = bli_obj_scalar_buffer( dt_beta, *beta );
|
|
|
|
// Index into the type combination array to extract the correct
|
|
// function pointer.
|
|
f = ftypes[dt_a][dt_x][dt_y];
|
|
|
|
// Invoke the function.
|
|
f( transa,
|
|
conjx,
|
|
m,
|
|
n,
|
|
buf_alpha,
|
|
buf_a, rs_a, cs_a,
|
|
buf_x, incx,
|
|
buf_beta,
|
|
buf_y, incy );
|
|
}
|
|
|
|
|
|
#undef GENTFUNC3U12
|
|
#define GENTFUNC3U12( ctype_a, ctype_x, ctype_y, ctype_ax, cha, chx, chy, chax, varname, kername ) \
|
|
\
|
|
void PASTEMAC3(cha,chx,chy,varname)( \
|
|
trans_t transa, \
|
|
conj_t conjx, \
|
|
dim_t m, \
|
|
dim_t n, \
|
|
void* alpha, \
|
|
void* a, inc_t rs_a, inc_t cs_a, \
|
|
void* x, inc_t incx, \
|
|
void* beta, \
|
|
void* y, inc_t incy \
|
|
) \
|
|
{ \
|
|
ctype_ax* alpha_cast = alpha; \
|
|
ctype_y* beta_cast = beta; \
|
|
ctype_a* a_cast = a; \
|
|
ctype_x* x_cast = x; \
|
|
ctype_y* y_cast = y; \
|
|
ctype_a* A1; \
|
|
ctype_x* x1; \
|
|
ctype_y* y1; \
|
|
dim_t i; \
|
|
dim_t b_fuse, f; \
|
|
dim_t n_elem, n_iter; \
|
|
inc_t rs_at, cs_at; \
|
|
conj_t conja; \
|
|
\
|
|
if ( bli_zero_dim2( m, n ) ) return; \
|
|
\
|
|
bli_set_dims_incs_with_trans( transa, \
|
|
m, n, rs_a, cs_a, \
|
|
n_iter, n_elem, rs_at, cs_at ); \
|
|
\
|
|
conja = bli_extract_conj( transa ); \
|
|
\
|
|
/* Query the fusing factor for the dotxf implementation. */ \
|
|
b_fuse = PASTEMAC(chax,dotxf_fusefac); \
|
|
\
|
|
for ( i = 0; i < n_iter; i += f ) \
|
|
{ \
|
|
f = bli_determine_blocksize_dim_f( i, n_iter, b_fuse ); \
|
|
\
|
|
A1 = a_cast + (i )*rs_at + (0 )*cs_at; \
|
|
x1 = x_cast + (0 )*incy; \
|
|
y1 = y_cast + (i )*incy; \
|
|
\
|
|
/* y1 = beta * y1 + alpha * A1 * x; */ \
|
|
PASTEMAC3(cha,chx,chy,kername)( conja, \
|
|
conjx, \
|
|
n_elem, \
|
|
f, \
|
|
alpha_cast, \
|
|
A1, cs_at, rs_at, \
|
|
x1, incx, \
|
|
beta_cast, \
|
|
y1, incy ); \
|
|
\
|
|
} \
|
|
}
|
|
|
|
// Define the basic set of functions unconditionally, and then also some
|
|
// mixed datatype functions if requested.
|
|
INSERT_GENTFUNC3U12_BASIC( gemv_unf_var1, DOTXF_KERNEL )
|
|
|
|
#ifdef BLIS_ENABLE_MIXED_DOMAIN_SUPPORT
|
|
INSERT_GENTFUNC3U12_MIX_D( gemv_unf_var1, DOTXF_KERNEL )
|
|
#endif
|
|
|
|
#ifdef BLIS_ENABLE_MIXED_PRECISION_SUPPORT
|
|
INSERT_GENTFUNC3U12_MIX_P( gemv_unf_var1, DOTXF_KERNEL )
|
|
#endif
|
|
|