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0e3f0ce634
Details: - Updated most comments in testsuite modules that describe how the correctness test is performed so that it is clear whether the vector (normfv) or matrix (normfm) form of Frobenius norm is used.
339 lines
9.1 KiB
C
339 lines
9.1 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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Copyright (C) 2018 - 2019, Advanced Micro Devices, Inc.
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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(s) of the copyright holder(s) 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 "blis.h"
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#include "test_libblis.h"
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// Static variables.
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static char* op_str = "dotxv";
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static char* o_types = "vv"; // x y
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static char* p_types = "cc"; // conjx conjy
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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_dotxv_deps
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(
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thread_data_t* tdata,
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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_dotxv_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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char* dc_str,
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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_dotxv_impl
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(
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iface_t iface,
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obj_t* alpha,
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obj_t* x,
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obj_t* y,
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obj_t* beta,
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obj_t* rho
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);
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void libblis_test_dotxv_check
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(
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test_params_t* params,
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obj_t* alpha,
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obj_t* x,
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obj_t* y,
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obj_t* beta,
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obj_t* rho,
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obj_t* rho_orig,
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double* resid
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);
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void libblis_test_dotxv_deps
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(
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thread_data_t* tdata,
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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( tdata, params, &(op->ops->randv) );
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libblis_test_normfv( tdata, params, &(op->ops->normfv) );
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libblis_test_copyv( tdata, params, &(op->ops->copyv) );
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}
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void libblis_test_dotxv
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(
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thread_data_t* tdata,
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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 ( libblis_test_op_is_done( op ) ) return;
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// Return early if operation is disabled.
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if ( libblis_test_op_is_disabled( op ) ||
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libblis_test_l1v_is_disabled( op ) ) return;
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// Call dependencies first.
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if ( TRUE ) libblis_test_dotxv_deps( tdata, 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( tdata,
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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_dotxv_experiment );
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}
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}
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void libblis_test_dotxv_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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char* dc_str,
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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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num_t datatype;
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dim_t m;
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conj_t conjx, conjy, conjconjxy;
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obj_t alpha, x, y, beta, rho;
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obj_t rho_save;
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// Use the datatype of the first char in the datatype combination string.
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bli_param_map_char_to_blis_dt( dc_str[0], &datatype );
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// Map the dimension specifier to an actual dimension.
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m = libblis_test_get_dim_from_prob_size( op->dim_spec[0], p_cur );
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// Map parameter characters to BLIS constants.
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bli_param_map_char_to_blis_conj( pc_str[0], &conjx );
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bli_param_map_char_to_blis_conj( pc_str[1], &conjy );
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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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bli_obj_scalar_init_detached( datatype, &rho );
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bli_obj_scalar_init_detached( datatype, &rho_save );
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// Create test operands (vectors and/or matrices).
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libblis_test_vobj_create( params, datatype, sc_str[0], m, &x );
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libblis_test_vobj_create( params, datatype, sc_str[1], m, &y );
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// Initialize alpha, beta, and rho.
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bli_copysc( &BLIS_ONE, &alpha );
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bli_copysc( &BLIS_ZERO, &beta );
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bli_copysc( &BLIS_MINUS_ONE, &rho );
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bli_copysc( &rho, &rho_save );
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// Randomize x.
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libblis_test_vobj_randomize( params, TRUE, &x );
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// Determine whether to make a copy of x with or without conjugation.
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//
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// conjx conjy ~conjx^conjy y is initialized as
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// n n c y = conj(x)
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// n c n y = x
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// c n n y = x
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// c c c y = conj(x)
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//
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conjconjxy = bli_apply_conj( conjx, conjy );
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conjconjxy = bli_conj_toggled( conjconjxy );
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bli_obj_set_conj( conjconjxy, &x );
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bli_copyv( &x, &y );
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// Apply the parameters.
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bli_obj_set_conj( conjx, &x );
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bli_obj_set_conj( conjy, &y );
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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_copysc( &rho_save, &rho );
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time = bli_clock();
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libblis_test_dotxv_impl( iface, &alpha, &x, &y, &beta, &rho );
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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 * m ) / time_min / FLOPS_PER_UNIT_PERF;
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if ( bli_obj_is_complex( &y ) ) *perf *= 4.0;
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// Perform checks.
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libblis_test_dotxv_check( params, &alpha, &x, &y, &beta, &rho, &rho_save, resid );
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// Zero out performance and residual if output scalar is empty.
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libblis_test_check_empty_problem( &rho, perf, resid );
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// Free the test objects.
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bli_obj_free( &x );
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bli_obj_free( &y );
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}
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void libblis_test_dotxv_impl
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(
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iface_t iface,
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obj_t* alpha,
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obj_t* x,
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obj_t* y,
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obj_t* beta,
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obj_t* rho
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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_dotxv( alpha, x, y, beta, rho );
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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_dotxv_check
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(
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test_params_t* params,
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obj_t* alpha,
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obj_t* x,
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obj_t* y,
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obj_t* beta,
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obj_t* rho,
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obj_t* rho_orig,
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double* resid
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)
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{
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num_t dt_real = bli_obj_dt_proj_to_real( y );
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obj_t rho_r, rho_i;
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obj_t norm_x_r, norm_xy_r;
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obj_t temp_r;
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double zero;
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double junk;
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//
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// Pre-conditions:
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// - x is randomized.
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// - y is equal to conjx(conjy(x)).
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// - alpha must be real-valued.
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// - beta must be zero.
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// Note:
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// - We forgo fully exercising beta scaling in order to simplify the
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// test.
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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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// rho := beta * rho_orig + alpha * conjx(x^T) conjy(y)
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//
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// is functioning correctly if
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//
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// sqrtsc( rho.real ) - sqrtsc( alpha ) * normfv( x )
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//
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// and
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//
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// rho.imag
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//
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// are negligible.
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//
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bli_obj_scalar_init_detached( dt_real, &rho_r );
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bli_obj_scalar_init_detached( dt_real, &rho_i );
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bli_obj_scalar_init_detached( dt_real, &norm_x_r );
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bli_obj_scalar_init_detached( dt_real, &norm_xy_r );
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bli_obj_scalar_init_detached( dt_real, &temp_r );
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bli_copysc( alpha, &temp_r );
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bli_sqrtsc( &temp_r, &temp_r );
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bli_normfv( x, &norm_x_r );
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bli_mulsc( &temp_r, &norm_x_r );
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bli_unzipsc( rho, &rho_r, &rho_i );
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bli_sqrtsc( &rho_r, &norm_xy_r );
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bli_subsc( &norm_x_r, &norm_xy_r );
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bli_getsc( &norm_xy_r, resid, &junk );
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bli_getsc( &rho_i, &zero, &junk );
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*resid = bli_fmaxabs( *resid, zero );
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}
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