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c31b1e7b9d
Details: - Relaxed the base pointer and leading dimension alignment restrictions in the sandybridge gemm microkernels, allowing the use of vmovups/vmovupd instead of vmovaps/vmovapd. These change mimic those made to the haswell microkernels ine0d2fa0andee2c139. - Updated testsuite modules as well as standalone test drivers in 'test' directory to use DBL_MAX as the initial time candidate. Thanks to Devin Matthews for suggesting this change. - Inserted #include "float.h" into bli_system.h (to gain access to DBL_MAX). - Minor update (vis-a-vis contexts) to driver code in test/3m4m.
391 lines
11 KiB
C
391 lines
11 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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#include "test_libblis.h"
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// Static variables.
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static char* op_str = "symm";
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static char* o_types = "mmm"; // a b c
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static char* p_types = "such"; // side uploa conja transb
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static thresh_t thresh[BLIS_NUM_FP_TYPES] = { { 1e-04, 1e-05 }, // warn, pass for s
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{ 1e-04, 1e-05 }, // warn, pass for c
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{ 1e-13, 1e-14 }, // warn, pass for d
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{ 1e-13, 1e-14 } }; // warn, pass for z
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// Local prototypes.
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void libblis_test_symm_deps
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(
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test_params_t* params,
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test_op_t* op
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);
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void libblis_test_symm_experiment
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(
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test_params_t* params,
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test_op_t* op,
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iface_t iface,
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num_t datatype,
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char* pc_str,
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char* sc_str,
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unsigned int p_cur,
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double* perf,
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double* resid
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);
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void libblis_test_symm_impl
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(
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iface_t iface,
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side_t side,
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obj_t* alpha,
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obj_t* a,
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obj_t* b,
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obj_t* beta,
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obj_t* c
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);
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void libblis_test_symm_check
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(
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test_params_t* params,
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side_t side,
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obj_t* alpha,
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obj_t* a,
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obj_t* b,
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obj_t* beta,
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obj_t* c,
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obj_t* c_orig,
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double* resid
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);
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void libblis_test_symm_deps
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(
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test_params_t* params,
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test_op_t* op
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)
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{
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libblis_test_randv( params, &(op->ops->randv) );
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libblis_test_randm( params, &(op->ops->randm) );
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libblis_test_setv( params, &(op->ops->setv) );
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libblis_test_normfv( params, &(op->ops->normfv) );
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libblis_test_subv( params, &(op->ops->subv) );
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libblis_test_scalv( params, &(op->ops->scalv) );
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libblis_test_copym( params, &(op->ops->copym) );
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libblis_test_scalm( params, &(op->ops->scalm) );
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libblis_test_gemv( params, &(op->ops->gemv) );
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libblis_test_symv( params, &(op->ops->symv) );
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}
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void libblis_test_symm
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(
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test_params_t* params,
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test_op_t* op
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)
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{
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// Return early if this test has already been done.
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if ( op->test_done == TRUE ) return;
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// Return early if operation is disabled.
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if ( op->op_switch == DISABLE_ALL ||
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op->ops->l3_over == DISABLE_ALL ) return;
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// Call dependencies first.
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if ( TRUE ) libblis_test_symm_deps( params, op );
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// Execute the test driver for each implementation requested.
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if ( op->front_seq == ENABLE )
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{
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libblis_test_op_driver( params,
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op,
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BLIS_TEST_SEQ_FRONT_END,
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op_str,
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p_types,
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o_types,
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thresh,
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libblis_test_symm_experiment );
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}
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}
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void libblis_test_symm_experiment
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(
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test_params_t* params,
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test_op_t* op,
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iface_t iface,
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num_t datatype,
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char* pc_str,
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char* sc_str,
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unsigned int p_cur,
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double* perf,
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double* resid
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)
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{
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unsigned int n_repeats = params->n_repeats;
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unsigned int i;
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double time_min = DBL_MAX;
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double time;
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dim_t m, n;
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dim_t mn_side;
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side_t side;
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uplo_t uploa;
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conj_t conja;
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trans_t transb;
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obj_t alpha, a, b, beta, c;
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obj_t c_save;
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// Map the dimension specifier to actual dimensions.
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m = libblis_test_get_dim_from_prob_size( op->dim_spec[0], p_cur );
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n = libblis_test_get_dim_from_prob_size( op->dim_spec[1], p_cur );
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// Map parameter characters to BLIS constants.
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bli_param_map_char_to_blis_side( pc_str[0], &side );
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bli_param_map_char_to_blis_uplo( pc_str[1], &uploa );
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bli_param_map_char_to_blis_conj( pc_str[2], &conja );
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bli_param_map_char_to_blis_trans( pc_str[3], &transb );
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// Create test scalars.
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bli_obj_scalar_init_detached( datatype, &alpha );
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bli_obj_scalar_init_detached( datatype, &beta );
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// Create test operands (vectors and/or matrices).
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bli_set_dim_with_side( side, m, n, mn_side );
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libblis_test_mobj_create( params, datatype, BLIS_NO_TRANSPOSE,
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sc_str[0], mn_side, mn_side, &a );
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libblis_test_mobj_create( params, datatype, transb,
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sc_str[1], m, n, &b );
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libblis_test_mobj_create( params, datatype, BLIS_NO_TRANSPOSE,
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sc_str[2], m, n, &c );
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libblis_test_mobj_create( params, datatype, BLIS_NO_TRANSPOSE,
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sc_str[2], m, n, &c_save );
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// Set alpha and beta.
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if ( bli_obj_is_real( c ) )
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{
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bli_setsc( 0.8, 0.0, &alpha );
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bli_setsc( -1.0, 0.0, &beta );
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}
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else
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{
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bli_setsc( 0.8, 0.6, &alpha );
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bli_setsc( -1.0, 1.0, &beta );
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}
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// Set the structure and uplo properties of A.
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bli_obj_set_struc( BLIS_SYMMETRIC, a );
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bli_obj_set_uplo( uploa, a );
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// Randomize A, make it densely symmetric, and zero the unstored triangle
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// to ensure the implementation reads only from the stored region.
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libblis_test_mobj_randomize( params, TRUE, &a );
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bli_mksymm( &a );
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bli_mktrim( &a );
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// Randomize B and C, and save C.
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libblis_test_mobj_randomize( params, TRUE, &b );
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libblis_test_mobj_randomize( params, TRUE, &c );
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bli_copym( &c, &c_save );
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// Apply the remaining parameters.
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bli_obj_set_conj( conja, a );
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bli_obj_set_conjtrans( transb, b );
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// Repeat the experiment n_repeats times and record results.
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for ( i = 0; i < n_repeats; ++i )
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{
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bli_copym( &c_save, &c );
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time = bli_clock();
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libblis_test_symm_impl( iface, side, &alpha, &a, &b, &beta, &c );
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time_min = bli_clock_min_diff( time_min, time );
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}
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// Estimate the performance of the best experiment repeat.
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*perf = ( 2.0 * mn_side * m * n ) / time_min / FLOPS_PER_UNIT_PERF;
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if ( bli_obj_is_complex( c ) ) *perf *= 4.0;
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// Perform checks.
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libblis_test_symm_check( params, side, &alpha, &a, &b, &beta, &c, &c_save, resid );
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// Zero out performance and residual if output matrix is empty.
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libblis_test_check_empty_problem( &c, perf, resid );
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// Free the test objects.
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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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void libblis_test_symm_impl
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(
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iface_t iface,
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side_t side,
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obj_t* alpha,
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obj_t* a,
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obj_t* b,
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obj_t* beta,
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obj_t* c
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)
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{
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switch ( iface )
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{
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case BLIS_TEST_SEQ_FRONT_END:
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bli_symm( side, alpha, a, b, beta, c );
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//bli_symm4m( side, alpha, a, b, beta, c );
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//bli_symm3m( side, alpha, a, b, beta, c );
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break;
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default:
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libblis_test_printf_error( "Invalid interface type.\n" );
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}
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}
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void libblis_test_symm_check
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(
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test_params_t* params,
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side_t side,
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obj_t* alpha,
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obj_t* a,
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obj_t* b,
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obj_t* beta,
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obj_t* c,
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obj_t* c_orig,
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double* resid
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)
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{
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num_t dt = bli_obj_datatype( *c );
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num_t dt_real = bli_obj_datatype_proj_to_real( *c );
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dim_t m = bli_obj_length( *c );
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dim_t n = bli_obj_width( *c );
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obj_t norm;
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obj_t t, v, w, z;
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double junk;
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//
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// Pre-conditions:
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// - a is randomized and symmetric.
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// - b is randomized.
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// - c_orig is randomized.
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// Note:
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// - alpha and beta should have non-zero imaginary components in the
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// complex cases in order to more fully exercise the implementation.
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//
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// Under these conditions, we assume that the implementation for
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//
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// C := beta * C_orig + alpha * conja(A) * transb(B) (side = left)
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// C := beta * C_orig + alpha * transb(B) * conja(A) (side = right)
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//
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// is functioning correctly if
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//
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// normf( v - z )
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//
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// is negligible, where
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//
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// v = C * t
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//
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// z = ( beta * C_orig + alpha * conja(A) * transb(B) ) * t (side = left)
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// = beta * C_orig * t + alpha * conja(A) * transb(B) * t
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// = beta * C_orig * t + alpha * conja(A) * w
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// = beta * C_orig * t + z
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//
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// z = ( beta * C_orig + alpha * transb(B) * conja(A) ) * t (side = right)
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// = beta * C_orig * t + alpha * transb(B) * conja(A) * t
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// = beta * C_orig * t + alpha * transb(B) * w
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// = beta * C_orig * t + z
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bli_obj_scalar_init_detached( dt_real, &norm );
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if ( bli_is_left( side ) )
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{
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bli_obj_create( dt, n, 1, 0, 0, &t );
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bli_obj_create( dt, m, 1, 0, 0, &v );
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bli_obj_create( dt, m, 1, 0, 0, &w );
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bli_obj_create( dt, m, 1, 0, 0, &z );
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}
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else // else if ( bli_is_left( side ) )
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{
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bli_obj_create( dt, n, 1, 0, 0, &t );
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bli_obj_create( dt, m, 1, 0, 0, &v );
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bli_obj_create( dt, n, 1, 0, 0, &w );
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bli_obj_create( dt, m, 1, 0, 0, &z );
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}
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libblis_test_vobj_randomize( params, TRUE, &t );
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bli_gemv( &BLIS_ONE, c, &t, &BLIS_ZERO, &v );
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if ( bli_is_left( side ) )
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{
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bli_gemv( &BLIS_ONE, b, &t, &BLIS_ZERO, &w );
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bli_symv( alpha, a, &w, &BLIS_ZERO, &z );
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}
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else
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{
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bli_symv( &BLIS_ONE, a, &t, &BLIS_ZERO, &w );
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bli_gemv( alpha, b, &w, &BLIS_ZERO, &z );
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}
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bli_gemv( beta, c_orig, &t, &BLIS_ONE, &z );
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bli_subv( &z, &v );
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bli_normfv( &v, &norm );
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bli_getsc( &norm, resid, &junk );
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bli_obj_free( &t );
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bli_obj_free( &v );
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bli_obj_free( &w );
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bli_obj_free( &z );
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}
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