57 lines
1.4 KiB
C++
57 lines
1.4 KiB
C++
// Copyright 2009-2020 Intel Corporation
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// SPDX-License-Identifier: Apache-2.0
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#include "parallel_filter.h"
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#include "../sys/regression.h"
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#include <map>
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namespace embree
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{
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struct parallel_filter_regression_test : public RegressionTest
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{
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parallel_filter_regression_test(const char* name) : RegressionTest(name) {
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registerRegressionTest(this);
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}
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bool run ()
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{
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bool passed = true;
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auto pred = [&]( uint32_t v ) { return (v & 0x3) == 0; };
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for (size_t N=10; N<1000000; N=size_t(2.1*N))
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{
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size_t N0 = rand() % N;
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/* initialize array with random numbers */
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std::vector<uint32_t> src(N);
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std::map<uint32_t,int> m;
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for (size_t i=0; i<N; i++) src[i] = rand();
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/* count elements up */
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for (size_t i=N0; i<N; i++)
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if (pred(src[i]))
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m[src[i]] = 0;
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for (size_t i=N0; i<N; i++)
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if (pred(src[i]))
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m[src[i]]++;
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/* filter array */
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//size_t M = sequential_filter(src.data(),N0,N,pred);
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size_t M = parallel_filter(src.data(),N0,N,size_t(1024),pred);
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/* check if filtered data is correct */
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for (size_t i=N0; i<M; i++) {
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passed &= pred(src[i]);
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m[src[i]]--;
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}
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for (size_t i=N0; i<M; i++)
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passed &= (m[src[i]] == 0);
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}
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return passed;
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}
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};
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parallel_filter_regression_test parallel_filter_regression("parallel_filter_regression");
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}
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