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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.
349 lines
9.4 KiB
C
349 lines
9.4 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 = "her";
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static char* o_types = "vm"; // x a
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static char* p_types = "uc"; // uploa conjx
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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_her_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_her_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_her_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* a
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);
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void libblis_test_her_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* a,
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obj_t* a_orig,
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double* resid
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);
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void libblis_test_her_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_randm( tdata, params, &(op->ops->randm) );
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libblis_test_normfv( tdata, params, &(op->ops->normfv) );
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libblis_test_subv( tdata, params, &(op->ops->subv) );
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libblis_test_copym( tdata, params, &(op->ops->copym) );
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libblis_test_scal2v( tdata, params, &(op->ops->scal2v) );
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libblis_test_dotv( tdata, params, &(op->ops->dotv) );
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libblis_test_gemv( tdata, params, &(op->ops->gemv) );
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}
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void libblis_test_her
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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_l2_is_disabled( op ) ) return;
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// Call dependencies first.
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if ( TRUE ) libblis_test_her_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_her_experiment );
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}
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}
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void libblis_test_her_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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uplo_t uploa;
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conj_t conjx;
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obj_t alpha, x, a;
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obj_t a_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_uplo( pc_str[0], &uploa );
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bli_param_map_char_to_blis_conj( pc_str[1], &conjx );
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// Create test scalars.
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bli_obj_scalar_init_detached( datatype, &alpha );
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// Create test operands (vectors and/or matrices).
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libblis_test_vobj_create( params, datatype,
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sc_str[0], m, &x );
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libblis_test_mobj_create( params, datatype, BLIS_NO_TRANSPOSE,
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sc_str[1], m, m, &a );
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libblis_test_mobj_create( params, datatype, BLIS_NO_TRANSPOSE,
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sc_str[1], m, m, &a_save );
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// Set alpha.
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//bli_copysc( &BLIS_MINUS_ONE, &alpha );
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bli_setsc( -1.0, 0.0, &alpha );
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// Randomize x.
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libblis_test_vobj_randomize( params, TRUE, &x );
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// Set the structure and uplo properties of A.
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bli_obj_set_struc( BLIS_HERMITIAN, &a );
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bli_obj_set_uplo( uploa, &a );
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// Randomize A, make it densely Hermitian, and zero the unstored triangle
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// to ensure the implementation is reads only from the stored region.
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libblis_test_mobj_randomize( params, TRUE, &a );
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bli_mkherm( &a );
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bli_mktrim( &a );
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// Save A and set its structure and uplo properties.
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bli_obj_set_struc( BLIS_HERMITIAN, &a_save );
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bli_obj_set_uplo( uploa, &a_save );
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bli_copym( &a, &a_save );
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// Apply the remaining parameters.
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bli_obj_set_conj( conjx, &x );
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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( &a_save, &a );
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time = bli_clock();
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libblis_test_her_impl( iface, &alpha, &x, &a );
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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 = ( 1.0 * m * m ) / time_min / FLOPS_PER_UNIT_PERF;
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if ( bli_obj_is_complex( &a ) ) *perf *= 4.0;
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// Perform checks.
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libblis_test_her_check( params, &alpha, &x, &a, &a_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( &a, 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( &a );
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bli_obj_free( &a_save );
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}
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void libblis_test_her_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* a
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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_her( alpha, x, a );
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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_her_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* a,
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obj_t* a_orig,
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double* resid
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)
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{
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num_t dt = bli_obj_dt( a );
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num_t dt_real = bli_obj_dt_proj_to_real( a );
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dim_t m_a = bli_obj_length( a );
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obj_t xh, t, v, w;
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obj_t rho, norm;
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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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// - a is randomized and Hermitian.
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// Note:
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// - alpha must be real-valued.
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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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// A := A_orig + alpha * conjx(x) * conjx(x)^H
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//
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// is functioning correctly if
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//
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// normfv( v - w )
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//
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// is negligible, where
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//
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// v = A * t
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// w = ( A_orig + alpha * conjx(x) * conjx(x)^H ) * t
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// = A_orig * t + alpha * conjx(x) * conjx(x)^H * t
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// = A_orig * t + alpha * conjx(x) * rho
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// = A_orig * t + w
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//
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bli_mkherm( a );
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bli_mkherm( a_orig );
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bli_obj_set_struc( BLIS_GENERAL, a );
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bli_obj_set_struc( BLIS_GENERAL, a_orig );
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bli_obj_set_uplo( BLIS_DENSE, a );
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bli_obj_set_uplo( BLIS_DENSE, a_orig );
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bli_obj_scalar_init_detached( dt, &rho );
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bli_obj_scalar_init_detached( dt_real, &norm );
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bli_obj_create( dt, m_a, 1, 0, 0, &t );
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bli_obj_create( dt, m_a, 1, 0, 0, &v );
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bli_obj_create( dt, m_a, 1, 0, 0, &w );
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bli_obj_alias_with_conj( BLIS_CONJUGATE, x, &xh );
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libblis_test_vobj_randomize( params, TRUE, &t );
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bli_gemv( &BLIS_ONE, a, &t, &BLIS_ZERO, &v );
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bli_dotv( &xh, &t, &rho );
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bli_mulsc( alpha, &rho );
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bli_scal2v( &rho, x, &w );
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bli_gemv( &BLIS_ONE, a_orig, &t, &BLIS_ONE, &w );
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bli_subv( &w, &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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}
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