mirror of
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b65cdc57d9
Details: - Changed all filename and function prefixes from 'bl2' to 'bli'. - Changed the "blis2.h" header filename to "blis.h" and changed all corresponding #include statements accordingly. - Fixed incorrect association for Fran in CREDITS file.
260 lines
7.8 KiB
C
260 lines
7.8 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 "blis.h"
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#include "test_libblis.h"
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// Static variables.
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static char* op_str = "dotv";
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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_dotv_deps( test_params_t* params,
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test_op_t* op );
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void libblis_test_dotv_experiment( test_params_t* params,
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test_op_t* op,
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mt_impl_t impl,
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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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dim_t p_cur,
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double* perf,
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double* resid );
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void libblis_test_dotv_impl( mt_impl_t impl,
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obj_t* x,
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obj_t* y,
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obj_t* rho );
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void libblis_test_dotv_check( obj_t* x,
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obj_t* y,
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obj_t* rho,
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double* resid );
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void libblis_test_dotv_deps( test_params_t* params, test_op_t* op )
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{
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libblis_test_randv( params, &(op->ops->randv) );
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libblis_test_fnormv( params, &(op->ops->fnormv) );
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libblis_test_copyv( params, &(op->ops->copyv) );
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}
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void libblis_test_dotv( test_params_t* params, test_op_t* op )
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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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// Call dependencies first.
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if ( TRUE ) libblis_test_dotv_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_dotv_experiment );
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}
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}
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void libblis_test_dotv_experiment( test_params_t* params,
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test_op_t* op,
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mt_impl_t impl,
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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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dim_t p_cur,
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double* perf,
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double* resid )
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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 = 1e9;
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double time;
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dim_t m;
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conj_t conjx, conjy, conjconjxy;
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obj_t x, y, rho;
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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_init_scalar( datatype, &rho );
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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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// Randomize x.
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bli_randv( &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( &BLIS_MINUS_ONE, &rho );
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time = bli_clock();
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libblis_test_dotv_impl( impl, &x, &y, &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_dotv_check( &x, &y, &rho, 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_dotv_impl( mt_impl_t impl,
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obj_t* x,
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obj_t* y,
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obj_t* rho )
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{
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switch ( impl )
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{
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case BLIS_TEST_SEQ_FRONT_END:
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bli_dotv( x, y, rho );
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break;
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default:
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libblis_test_printf_error( "Invalid implementation type.\n" );
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}
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}
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void libblis_test_dotv_check( obj_t* x,
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obj_t* y,
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obj_t* rho,
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double* resid )
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{
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num_t dt_real = bli_obj_datatype_proj_to_real( *y );
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obj_t rho_r, rho_i;
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obj_t norm_x, norm_xy;
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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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//
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// Under these conditions, we assume that the implementation for
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//
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// rho := 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 ) - fnorm( 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_init_scalar( dt_real, &rho_r );
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bli_obj_init_scalar( dt_real, &rho_i );
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bli_obj_init_scalar( dt_real, &norm_x );
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bli_obj_init_scalar( dt_real, &norm_xy );
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bli_fnormv( x, &norm_x );
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bli_unzipsc( rho, &rho_r, &rho_i );
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bli_sqrtsc( &rho_r, &norm_xy );
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bli_subsc( &norm_x, &norm_xy );
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bli_getsc( &norm_xy, 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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