mirror of
https://github.com/amd/blis.git
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02002ef6f3
Details: - Implemented algorithmic optimizations for trmm and trsm whereby the right side case is now handled explicitly, rather than induced indirectly by transposing and swapping strides on operands. This allows us to walk through the output matrix with favorable access patterns no matter how it is stored, for all parameter combinations. - Renamed trmm and trsm blocked variants so that there is no longer a lower/upper distinction. Instead, we simply label the variants by which dimension is partitioned and whether the variant marches forwards or backwards through the corresponding partitioned operands. - Added support for row-stored packing of lower and upper triangular matrices (as provided by bli_packm_blk_var3.c). - Fixed a performance bug in bli_determine_blocksize_b() whereby the cache blocksize extensions (if non-zero) were not being used to appropriately size the first iteration (ie: the bottom/right edge case). - Updated comments in bli_kernel.h to indicate that both MC and NC must be whole multiples of MR AND NR. This is needed for the case of trsm_r where, in order to reuse existing left-side gemmtrsm fused micro-kernels, the packing of A (left-hand operand) and B (right-hand operand) is done with NR and MR, respectively (instead of MR and NR).
350 lines
9.6 KiB
C
350 lines
9.6 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) 2013, The University of Texas
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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 nor the names of its
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contributors may be used to endorse or promote products derived
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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 <unistd.h>
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#include "blis.h"
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// side uplo trans diag m n alpha a lda b ldb
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void dtrmm_( char*, char*, char*, char*, int*, int*, double*, double*, int*, double*, int* );
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//#define PRINT
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int main( int argc, char** argv )
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{
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obj_t a, b, c;
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obj_t c_save;
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obj_t alpha, beta;
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dim_t m, n;
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dim_t p;
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dim_t p_begin, p_end, p_inc;
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int m_input, n_input;
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num_t dt_a, dt_b, dt_c;
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num_t dt_alpha, dt_beta;
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int r, n_repeats;
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side_t side;
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#if 0
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blksz_t* mr;
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blksz_t* nr;
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blksz_t* kr;
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blksz_t* mc;
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blksz_t* nc;
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blksz_t* kc;
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blksz_t* ni;
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scalm_t* scalm_cntl;
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packm_t* packm_cntl_a;
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packm_t* packm_cntl_b;
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gemm_t* gemm_cntl_bp_ke;
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trmm_t* trmm_cntl_bp_ke;
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trmm_t* trmm_cntl_op_bp;
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trmm_t* trmm_cntl_mm_op;
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trmm_t* trmm_cntl_vl_mm;
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#endif
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double dtime;
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double dtime_save;
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double gflops;
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bli_init();
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n_repeats = 3;
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#ifndef PRINT
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p_begin = 40;
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p_end = 2000;
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p_inc = 40;
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m_input = -1;
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n_input = -1;
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#else
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p_begin = 16;
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p_end = 16;
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p_inc = 1;
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m_input = 16;
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n_input = 16;
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#endif
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dt_a = BLIS_DOUBLE;
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dt_b = BLIS_DOUBLE;
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dt_c = BLIS_DOUBLE;
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dt_alpha = BLIS_DOUBLE;
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dt_beta = BLIS_DOUBLE;
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side = BLIS_LEFT;
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//side = BLIS_RIGHT;
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for ( p = p_begin; p <= p_end; p += p_inc )
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{
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if ( m_input < 0 ) m = p * ( dim_t )abs(m_input);
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else m = ( dim_t ) m_input;
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if ( n_input < 0 ) n = p * ( dim_t )abs(n_input);
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else n = ( dim_t ) n_input;
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bli_obj_create( dt_alpha, 1, 1, 0, 0, &alpha );
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bli_obj_create( dt_beta, 1, 1, 0, 0, &beta );
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if ( bli_is_left( side ) )
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bli_obj_create( dt_a, m, m, 0, 0, &a );
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else
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bli_obj_create( dt_a, n, n, 0, 0, &a );
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bli_obj_create( dt_b, m, n, 0, 0, &b );
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bli_obj_create( dt_c, m, n, 0, 0, &c );
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bli_obj_create( dt_c, m, n, 0, 0, &c_save );
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bli_obj_set_struc( BLIS_TRIANGULAR, a );
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bli_obj_set_uplo( BLIS_UPPER, a );
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//bli_obj_set_uplo( BLIS_LOWER, a );
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bli_randm( &a );
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bli_randm( &c );
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bli_randm( &b );
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#if 0
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bli_obj_set_struc( BLIS_TRIANGULAR, a );
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//bli_obj_set_uplo( BLIS_LOWER, a );
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bli_obj_set_uplo( BLIS_UPPER, a );
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bli_obj_set_diag( BLIS_UNIT_DIAG, a );
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bli_setm( &BLIS_ZERO, &a );
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bli_obj_set_struc( BLIS_GENERAL, a );
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bli_obj_set_uplo( BLIS_DENSE, a );
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bli_obj_set_diag( BLIS_NONUNIT_DIAG, a );
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#endif
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bli_setsc( (2.0/1.0), 0.0, &alpha );
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bli_setsc( -(1.0/1.0), 0.0, &beta );
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#if 0
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mr = bli_blksz_obj_create( 2, 4, 2, 2 );
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kr = bli_blksz_obj_create( 1, 1, 1, 1 );
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nr = bli_blksz_obj_create( 1, 4, 1, 1 );
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mc = bli_blksz_obj_create( 128, 368, 128, 128 );
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kc = bli_blksz_obj_create( 256, 256, 256, 256 );
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nc = bli_blksz_obj_create( 512, 512, 512, 512 );
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ni = bli_blksz_obj_create( 16, 16, 16, 16 );
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scalm_cntl =
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bli_scalm_cntl_obj_create( BLIS_UNBLOCKED,
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BLIS_VARIANT1 );
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packm_cntl_a =
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bli_packm_cntl_obj_create( BLIS_BLOCKED,
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BLIS_VARIANT3,
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mr, // IMPORTANT: for consistency with trsm, "k" dim
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mr, // multiple is set to mr.
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FALSE, // scale?
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TRUE, // densify?
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FALSE, // invert diagonal?
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FALSE, // reverse iteration if upper?
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FALSE, // reverse iteration if lower?
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BLIS_PACKED_ROW_PANELS,
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BLIS_BUFFER_FOR_A_BLOCK );
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packm_cntl_b =
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bli_packm_cntl_obj_create( BLIS_BLOCKED,
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BLIS_VARIANT2,
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mr, // IMPORTANT: m dim multiple here must be mr
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nr, // since "k" dim multiple is set to mr above.
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FALSE, // scale?
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FALSE, // densify?
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FALSE, // invert diagonal?
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FALSE, // reverse iteration if upper?
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FALSE, // reverse iteration if lower?
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BLIS_PACKED_COL_PANELS,
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BLIS_BUFFER_FOR_B_PANEL );
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gemm_cntl_bp_ke =
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bli_gemm_cntl_obj_create( BLIS_UNB_OPT,
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BLIS_VARIANT2,
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NULL, NULL, NULL, NULL,
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NULL, NULL, NULL, NULL );
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trmm_cntl_bp_ke =
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bli_trmm_cntl_obj_create( BLIS_UNB_OPT,
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BLIS_VARIANT2,
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//BLIS_VARIANT3,
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NULL, NULL, NULL, NULL, NULL,
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NULL, NULL, NULL, NULL );
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trmm_cntl_op_bp =
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bli_trmm_cntl_obj_create( BLIS_BLOCKED,
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//BLIS_VARIANT4,
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BLIS_VARIANT1,
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mc,
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ni,
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NULL,
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packm_cntl_a,
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packm_cntl_b,
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NULL,
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trmm_cntl_bp_ke,
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gemm_cntl_bp_ke,
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NULL );
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trmm_cntl_mm_op =
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bli_trmm_cntl_obj_create( BLIS_BLOCKED,
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BLIS_VARIANT3,
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kc,
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NULL,
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NULL, //scalm_cntl,
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NULL,
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NULL,
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NULL,
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trmm_cntl_op_bp,
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NULL,
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NULL );
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trmm_cntl_vl_mm =
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bli_trmm_cntl_obj_create( BLIS_BLOCKED,
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BLIS_VARIANT2,
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nc,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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trmm_cntl_mm_op,
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NULL,
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NULL );
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#endif
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bli_copym( &c, &c_save );
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dtime_save = 1.0e9;
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for ( r = 0; r < n_repeats; ++r )
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{
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bli_copym( &c_save, &c );
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dtime = bli_clock();
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#ifdef PRINT
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bli_printm( "a", &a, "%4.1f", "" );
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bli_printm( "c", &c, "%4.1f", "" );
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#endif
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#ifdef BLIS
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//bli_error_checking_level_set( BLIS_NO_ERROR_CHECKING );
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//bli_obj_set_onlytrans( BLIS_TRANSPOSE, a );
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bli_trmm( side,
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&alpha,
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&a,
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&c );
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#else
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char side = 'L';
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char uplo = 'U';
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char transa = 'N';
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char diag = 'N';
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int mm = bli_obj_length( c );
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int nn = bli_obj_width( c );
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int lda = bli_obj_col_stride( a );
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int ldc = bli_obj_col_stride( c );
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double* alphap = bli_obj_buffer( alpha );
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double* ap = bli_obj_buffer( a );
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double* cp = bli_obj_buffer( c );
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dtrmm_( &side,
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&uplo,
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&transa,
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&diag,
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&mm,
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&nn,
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alphap,
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ap, &lda,
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cp, &ldc );
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#endif
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#ifdef PRINT
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bli_printm( "c after", &c, "%4.1f", "" );
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exit(1);
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#endif
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dtime_save = bli_clock_min_diff( dtime_save, dtime );
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}
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if ( bli_is_left( side ) )
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gflops = ( 1.0 * m * m * n ) / ( dtime_save * 1.0e9 );
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else
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gflops = ( 1.0 * m * n * n ) / ( dtime_save * 1.0e9 );
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#ifdef BLIS
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printf( "data_trmm_blis" );
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#else
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printf( "data_trmm_%s", BLAS );
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#endif
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printf( "( %2ld, 1:4 ) = [ %4lu %4lu %10.3e %6.3f ];\n",
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(p - p_begin + 1)/p_inc + 1, m, n, dtime_save, gflops );
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#if 0
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bli_blksz_obj_free( mr );
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bli_blksz_obj_free( nr );
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bli_blksz_obj_free( kr );
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bli_blksz_obj_free( mc );
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bli_blksz_obj_free( nc );
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bli_blksz_obj_free( kc );
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bli_blksz_obj_free( ni );
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bli_cntl_obj_free( scalm_cntl );
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bli_cntl_obj_free( packm_cntl_a );
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bli_cntl_obj_free( packm_cntl_b );
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bli_cntl_obj_free( trmm_cntl_bp_ke );
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bli_cntl_obj_free( trmm_cntl_op_bp );
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bli_cntl_obj_free( trmm_cntl_mm_op );
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bli_cntl_obj_free( trmm_cntl_vl_mm );
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#endif
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bli_obj_free( &alpha );
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bli_obj_free( &beta );
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bli_obj_free( &a );
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bli_obj_free( &b );
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bli_obj_free( &c );
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bli_obj_free( &c_save );
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}
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bli_finalize();
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return 0;
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}
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