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distvocabhdfs.cpp
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distvocabhdfs.cpp
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// Copyright (c) 2021 Christopher Taylor
//
// SPDX-License-Identifier: BSL-1.0
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#include <hpx/config.hpp>
#if !defined(HPX_COMPUTE_DEVICE_CODE)
#include <hpx/hpx.hpp>
#include <hpx/hpx_init.hpp>
#include <hpx/modules/collectives.hpp>
#include <hpx/numeric.hpp>
#include <hpx/algorithm.hpp>
#include <vector>
#include <numeric>
#include <algorithm>
#include <cmath>
#include <cstdint>
#include <iostream>
#include <unistd.h>
#include <getopt.h>
#include <unicode/unistr.h>
#include "jch.hpp"
#include "inverted_index.hpp"
#include "inverted_index_serialize.hpp"
#include "serialize.hpp"
#include "hdfs_support.hpp"
namespace fs = std::experimental::filesystem;
using namespace hpx::collectives;
int hpx_main(hpx::program_options::variables_map & vm) {
bool exit = false;
bool histogram = false;
if(vm.count("corpus_dir") == 0) {
std::cerr << "Please specify '--corpus_dir=corpus-directory'" << std::endl;
exit = true;
}
if(vm.count("histogram") != 0) {
histogram = true;
}
if(vm.count("hdfs_namenode_addr") == 0) {
std::cerr << "Please specify '--hdfs_namenode_addr=hdfs-namenode-address-string'" << std::endl;
exit = true;
}
if(vm.count("hdfs_namenode_port") == 0) {
std::cerr << "Please specify '--hdfs_namenode_port=unsigned-integer-value'" << std::endl;
exit = true;
}
if(vm.count("hdfs_buffer_size") == 0) {
std::cerr << "Please specify '--hdfs_buffer_size=unsigned-integer-value'" << std::endl;
exit = true;
}
if(vm.count("hdfs_block_size") == 0) {
std::cerr << "Please specify '--hdfs_block_size=unsigned-integer-value'" << std::endl;
exit = true;
}
if(exit) {
return hpx::finalize();
}
UnicodeString regexp(UnicodeString::fromUTF8(vm["regex"].as<std::string>())); //u"[\\p{L}\\p{M}]+");
fs::path pth{vm["corpus_dir"].as<std::string>()};
const std::vector<hpx::id_type> localities = hpx::find_all_localities();
const std::size_t n_locales = localities.size();
const std::size_t locality_id = hpx::get_locality_id();
std::vector<inverted_index_t> indices(n_locales);
for(std::size_t i = 0; i < n_locales; ++i) {
indices.emplace_back(inverted_index_t{});
}
hdfs_context ctx;
{
const std::string namenode_addr = vm["hdfs_namenode_addr"].as<std::string>();
const std::size_t namenode_port = vm["hdfs_namenode_port"].as<std::size_t>();
const std::size_t hdfs_buffer_sz = vm["hdfs_buffer_size"].as<std::size_t>();
const std::size_t hdfs_block_sz = vm["hdfs_block_size"].as<std::size_t>();
init_hdfs_context(ctx, namenode_addr, namenode_port, hdfs_buffer_sz, hdfs_block_sz);
}
{
std::vector< fs::path > paths;
// sort out locale file portion
//
{
std::vector< fs::path > locale_paths;
const std::size_t n_paths = path_to_vector( ctx, pth, locale_paths );
const std::size_t chunk_sz = n_paths / n_locales;
const std::size_t base = locality_id * chunk_sz;
const std::tuple<std::size_t, std::size_t> locale_dp{base, ( locality_id != (n_locales-1) ) ? (base + chunk_sz) : n_paths};
const std::size_t locale_doc_diff = std::get<1>(locale_dp)-std::get<0>(locale_dp);
paths.resize(locale_doc_diff);
std::copy_n(std::begin(locale_paths)+std::get<0>(locale_dp), locale_doc_diff, std::begin(paths));
}
inverted_index_t ii{};
std::vector< fs::path >::iterator beg = paths.begin();
std::vector< fs::path >::iterator end = paths.end();
document_path_to_inverted_index(ctx, beg, end, regexp, ii);
std::hash<std::string> stdhash{};
for(const auto& entry : ii) {
const std::int32_t tok_rank = JumpConsistentHash(stdhash(entry.first), n_locales);
auto um_rank_itr = indices[tok_rank].find(entry.first); // unordered_map<size_t, size_t>
auto um_rank_itr_end = um_rank_itr->second.end();
if(indices[tok_rank].end() != um_rank_itr) {
for(auto entryval : entry.second) {
auto vitr = um_rank_itr->second.find(entryval.first);
if(vitr != um_rank_itr_end) {
vitr->second += entryval.second;
}
else {
um_rank_itr->second.insert({entryval.first, entryval.second});
}
}
}
else {
indices[tok_rank].insert({entry.first, entry.second});
}
}
}
{
std::vector< inverted_index_t > fin_indices;
const std::string all_gather_direct_basename = "all_gather_direct";
auto all_gather_direct_client = create_communicator(
all_gather_direct_basename.c_str(), num_sites_arg(n_locales), this_site_arg(locality_id)
);
for(std::size_t i = 0; i < n_locales; ++i) {
if(locality_id == i) {
hpx::future<std::vector<inverted_index_t>> f = hpx::collectives::gather_here(all_gather_direct_client, indices[locality_id], hpx::collectives::this_site_arg{locality_id});
fin_indices = f.get();
}
else {
hpx::future<void> f = hpx::collectives::gather_there(all_gather_direct_client, indices[i], hpx::collectives::this_site_arg{locality_id});
f.get();
}
}
std::copy(std::begin(fin_indices), std::end(fin_indices), std::begin(indices));
}
if(!histogram) {
std::unordered_map<std::string, bool> filter{};
const auto filter_end = filter.end();
for(std::size_t i = 0; i < n_locales; ++i) {
for(const auto& e : indices[i]) {
if(filter.find(e.first) != filter_end) {
std::cout << e.first << std::endl;
filter[e.first] = true;
}
}
}
}
else {
std::unordered_map<std::string, std::size_t> filter{};
const auto filter_end = filter.end();
std::plus<std::size_t> addr{};
for(std::size_t i = 0; i < n_locales; ++i) {
for(const auto& e : indices[i]) {
if(filter.find(e.first) != filter_end) {
const std::size_t count = hpx::transform_reduce(hpx::execution::par,
std::begin(e.second), std::end(e.second), 0, addr,
[](const auto& entry){
return entry.second;
});
filter[e.first] = count;
}
else {
const std::size_t count = hpx::transform_reduce(hpx::execution::par,
std::begin(e.second), std::end(e.second), 0, addr,
[](const auto& entry){
return entry.second;
});
filter[e.first] += count;
}
}
}
for(const auto& e : filter) {
std::cout << e.first << ',' << e.second << std::endl;
}
}
return hpx::finalize();
}
int main(int argc, char ** argv) {
hpx::program_options::options_description desc("usage: distvocab [options]");
desc.add_options()("regex,re",hpx::program_options::value<std::string>()->default_value("[\\p{L}\\p{M}]+"),
"regex (default: [\\p{L}\\p{M}]+]")("corpus_dir,cd",
hpx::program_options::value<std::string>(),
"directory path containing the corpus to model")("histogram,hg",
hpx::program_options::value<std::string>(),
"print global counts")("hdfs_namenode_addr,nna",
hpx::program_options::value<std::string>(),
"address to the hdfs namenode server")("hdfs_namenode_port,nnp",
hpx::program_options::value<std::size_t>(),
"port number used by the hdfs namenode server")("hdfs_buffer_size,bsz",
hpx::program_options::value<std::size_t>()->default_value(1024),
"size of the buffer used to read data from hdfs")("hdfs_block_size,bksz",
hpx::program_options::value<std::size_t>()->default_value(1024),
"size of the block used to write data to hdfs");
hpx::init_params params;
params.desc_cmdline = desc;
return hpx::init(argc, argv, params);
}
#endif