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61 lines
2.1 KiB
C++
61 lines
2.1 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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#include <faiss/IndexFlat.h>
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#include "utils.h"
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void DataGenBase::GenData(const int &dim, const int &nb, const int &nq,
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float *xb, float *xq, long *ids,
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const int &k, long *gt_ids, float *gt_dis) {
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for (auto i = 0; i < nb; ++i) {
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for (auto j = 0; j < dim; ++j) {
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//p_data[i * d + j] = float(base + i);
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xb[i * dim + j] = drand48();
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}
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xb[dim * i] += i / 1000.;
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ids[i] = i;
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}
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for (size_t i = 0; i < nq * dim; ++i) {
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xq[i] = xb[i];
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}
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faiss::IndexFlatL2 index(dim);
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//index.add_with_ids(nb, xb, ids);
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index.add(nb, xb);
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index.search(nq, xq, k, gt_dis, gt_ids);
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}
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void DataGenBase::GenData(const int &dim,
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const int &nb,
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const int &nq,
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std::vector<float> &xb,
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std::vector<float> &xq,
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std::vector<long> &ids,
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const int &k,
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std::vector<long> >_ids,
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std::vector<float> >_dis) {
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xb.resize(nb * dim);
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xq.resize(nq * dim);
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ids.resize(nb);
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gt_ids.resize(nq * k);
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gt_dis.resize(nq * k);
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GenData(dim, nb, nq, xb.data(), xq.data(), ids.data(), k, gt_ids.data(), gt_dis.data());
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}
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