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264 lines
7.0 KiB
C
264 lines
7.0 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 = "randv";
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static char* o_types = "v"; // x
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static char* p_types = ""; // (no parameters)
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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_randv_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_randv_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_randv_impl
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(
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iface_t iface,
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obj_t* x
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);
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void libblis_test_randv_check
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(
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test_params_t* params,
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obj_t* x,
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double* resid
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);
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void libblis_test_randv_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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// No dependencies.
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}
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void libblis_test_randv
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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_util_is_disabled( op ) ) return;
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// Call dependencies first.
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if ( TRUE ) libblis_test_randv_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_randv_experiment );
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}
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}
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void libblis_test_randv_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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char x_store;
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obj_t x;
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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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// Extract the storage character for each operand.
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x_store = sc_str[0];
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// Create the test objects.
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libblis_test_vobj_create( params, datatype, x_store, m, &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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time = bli_clock();
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libblis_test_randv_impl( iface, &x );
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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( &x ) ) *perf *= 2.0;
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// Perform checks.
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// For randv(), we don't return a meaningful residual/diff, since we can't
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// really say for sure what is "random" and what is not, so instead we
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// manually perform some checks that will fail under some scenarios whic
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// we consider to be likely.
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libblis_test_randv_check( params, &x, resid );
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// Zero out performance and residual if output vector is empty.
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libblis_test_check_empty_problem( &x, perf, resid );
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// Free the test objects.
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bli_obj_free( &x );
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}
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void libblis_test_randv_impl
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(
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iface_t iface,
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obj_t* x
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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_randv( x );
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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_randv_check
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(
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test_params_t* params,
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obj_t* x,
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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( x );
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dim_t m_x = bli_obj_vector_dim( x );
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obj_t sum;
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*resid = 0.0;
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//
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// The two most likely ways that randv would fail is if all elements
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// were zero, or if all elements were greater than or equal to one.
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// We check both of these conditions by computing the sum of the
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// absolute values of the elements of x.
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//
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bli_obj_scalar_init_detached( dt_real, &sum );
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bli_norm1v( x, &sum );
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if ( bli_is_float( dt_real ) )
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{
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float* sum_x = bli_obj_buffer_at_off( &sum );
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if ( *sum_x == *bli_d0 ) *resid = 1.0;
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else if ( *sum_x >= 2.0 * m_x ) *resid = 2.0;
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}
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else // if ( bli_is_double( dt_real ) )
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{
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double* sum_x = bli_obj_buffer_at_off( &sum );
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if ( *sum_x == *bli_d0 ) *resid = 1.0;
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else if ( *sum_x >= 2.0 * m_x ) *resid = 2.0;
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}
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}
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