mirror of
https://github.com/amd/blis.git
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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.
293 lines
7.4 KiB
C
293 lines
7.4 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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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 = "scalv";
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static char* o_types = "v"; // y
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static char* p_types = "c"; // conjbeta
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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_scalv_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_scalv_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_scalv_impl
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(
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iface_t iface,
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obj_t* beta,
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obj_t* y
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);
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void libblis_test_scalv_check
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(
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test_params_t* params,
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obj_t* beta,
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obj_t* y,
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obj_t* y_orig,
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double* resid
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);
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void libblis_test_scalv_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_normfv( params, &(op->ops->normfv) );
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libblis_test_addv( params, &(op->ops->addv) );
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libblis_test_copyv( params, &(op->ops->copyv) );
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}
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void libblis_test_scalv
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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->l1v_over == DISABLE_ALL ) return;
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// Call dependencies first.
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if ( TRUE ) libblis_test_scalv_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_scalv_experiment );
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}
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}
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void libblis_test_scalv_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;
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conj_t conjbeta;
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obj_t beta, y;
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obj_t y_save;
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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], &conjbeta );
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// Create test scalars.
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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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libblis_test_vobj_create( params, datatype, sc_str[0], m, &y );
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libblis_test_vobj_create( params, datatype, sc_str[0], m, &y_save );
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// Set beta.
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if ( bli_obj_is_real( y ) )
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bli_setsc( -2.0, 0.0, &beta );
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else
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bli_setsc( 0.0, -2.0, &beta );
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// Randomize and save y.
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libblis_test_vobj_randomize( params, FALSE, &y );
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bli_copyv( &y, &y_save );
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// Apply the parameters.
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bli_obj_set_conj( conjbeta, beta );
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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_copyv( &y_save, &y );
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time = bli_clock();
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libblis_test_scalv_impl( iface, &beta, &y );
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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 ) / time_min / FLOPS_PER_UNIT_PERF;
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if ( bli_obj_is_complex( y ) ) *perf *= 6.0;
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// Perform checks.
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libblis_test_scalv_check( params, &beta, &y, &y_save, resid );
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// Zero out performance and residual if output vector is empty.
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libblis_test_check_empty_problem( &y, perf, resid );
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// Free the test objects.
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bli_obj_free( &y );
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bli_obj_free( &y_save );
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}
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void libblis_test_scalv_impl
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(
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iface_t iface,
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obj_t* beta,
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obj_t* y
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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_scalv( beta, y );
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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_scalv_check
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(
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test_params_t* params,
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obj_t* beta,
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obj_t* y,
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obj_t* y_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( *y );
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num_t dt_real = bli_obj_datatype_proj_to_real( *y );
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dim_t m = bli_obj_vector_dim( *y );
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obj_t norm_y_r;
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obj_t nbeta;
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obj_t y2;
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double junk;
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//
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// Pre-conditions:
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// - y_orig is randomized.
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// Note:
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// - beta should have a non-zero imaginary component in the complex
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// 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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// y := conjbeta(beta) * y_orig
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//
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// is functioning correctly if
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//
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// normf( y + -conjbeta(beta) * y_orig )
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//
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// is negligible.
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//
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bli_obj_create( dt, m, 1, 0, 0, &y2 );
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bli_copyv( y_orig, &y2 );
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bli_obj_scalar_init_detached( dt, &nbeta );
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bli_obj_scalar_init_detached( dt_real, &norm_y_r );
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bli_copysc( beta, &nbeta );
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bli_mulsc( &BLIS_MINUS_ONE, &nbeta );
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bli_scalv( &nbeta, &y2 );
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bli_addv( &y2, y );
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bli_normfv( y, &norm_y_r );
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bli_getsc( &norm_y_r, resid, &junk );
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bli_obj_free( &y2 );
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}
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