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-rw-r--r--lm/build_binary.cc77
1 files changed, 25 insertions, 52 deletions
diff --git a/lm/build_binary.cc b/lm/build_binary.cc
index 2b8c9d5b2..ab2c0c320 100644
--- a/lm/build_binary.cc
+++ b/lm/build_binary.cc
@@ -1,10 +1,14 @@
#include "lm/model.hh"
+#include "lm/sizes.hh"
#include "util/file_piece.hh"
+#include "util/usage.hh"
+#include <algorithm>
#include <cstdlib>
#include <exception>
#include <iostream>
#include <iomanip>
+#include <limits>
#include <math.h>
#include <stdlib.h>
@@ -19,8 +23,8 @@ namespace lm {
namespace ngram {
namespace {
-void Usage(const char *name) {
- std::cerr << "Usage: " << name << " [-u log10_unknown_probability] [-s] [-i] [-w mmap|after] [-p probing_multiplier] [-t trie_temporary] [-m trie_building_megabytes] [-q bits] [-b bits] [-a bits] [type] input.arpa [output.mmap]\n\n"
+void Usage(const char *name, const char *default_mem) {
+ std::cerr << "Usage: " << name << " [-u log10_unknown_probability] [-s] [-i] [-w mmap|after] [-p probing_multiplier] [-T trie_temporary] [-S trie_building_mem] [-q bits] [-b bits] [-a bits] [type] input.arpa [output.mmap]\n\n"
"-u sets the log10 probability for <unk> if the ARPA file does not have one.\n"
" Default is -100. The ARPA file will always take precedence.\n"
"-s allows models to be built even if they do not have <s> and </s>.\n"
@@ -38,8 +42,11 @@ void Usage(const char *name) {
"trie is a straightforward trie with bit-level packing. It uses the least\n"
"memory and is still faster than SRI or IRST. Building the trie format uses an\n"
"on-disk sort to save memory.\n"
-"-t is the temporary directory prefix. Default is the output file name.\n"
-"-m limits memory use for sorting. Measured in MB. Default is 1024MB.\n"
+"-T is the temporary directory prefix. Default is the output file name.\n"
+"-S determines memory use for sorting. Default is " << default_mem << ". This is compatible\n"
+" with GNU sort. The number is followed by a unit: \% for percent of physical\n"
+" memory, b for bytes, K for Kilobytes, M for megabytes, then G,T,P,E,Z,Y. \n"
+" Default unit is K for Kilobytes.\n"
"-q turns quantization on and sets the number of bits (e.g. -q 8).\n"
"-b sets backoff quantization bits. Requires -q and defaults to that value.\n"
"-a compresses pointers using an array of offsets. The parameter is the\n"
@@ -83,47 +90,6 @@ void ParseFileList(const char *from, std::vector<std::string> &to) {
}
}
-void ShowSizes(const char *file, const lm::ngram::Config &config) {
- std::vector<uint64_t> counts;
- util::FilePiece f(file);
- lm::ReadARPACounts(f, counts);
- uint64_t sizes[6];
- sizes[0] = ProbingModel::Size(counts, config);
- sizes[1] = RestProbingModel::Size(counts, config);
- sizes[2] = TrieModel::Size(counts, config);
- sizes[3] = QuantTrieModel::Size(counts, config);
- sizes[4] = ArrayTrieModel::Size(counts, config);
- sizes[5] = QuantArrayTrieModel::Size(counts, config);
- uint64_t max_length = *std::max_element(sizes, sizes + sizeof(sizes) / sizeof(uint64_t));
- uint64_t min_length = *std::min_element(sizes, sizes + sizeof(sizes) / sizeof(uint64_t));
- uint64_t divide;
- char prefix;
- if (min_length < (1 << 10) * 10) {
- prefix = ' ';
- divide = 1;
- } else if (min_length < (1 << 20) * 10) {
- prefix = 'k';
- divide = 1 << 10;
- } else if (min_length < (1ULL << 30) * 10) {
- prefix = 'M';
- divide = 1 << 20;
- } else {
- prefix = 'G';
- divide = 1 << 30;
- }
- long int length = std::max<long int>(2, static_cast<long int>(ceil(log10((double) max_length / divide))));
- std::cout << "Memory estimate:\ntype ";
- // right align bytes.
- for (long int i = 0; i < length - 2; ++i) std::cout << ' ';
- std::cout << prefix << "B\n"
- "probing " << std::setw(length) << (sizes[0] / divide) << " assuming -p " << config.probing_multiplier << "\n"
- "probing " << std::setw(length) << (sizes[1] / divide) << " assuming -r models -p " << config.probing_multiplier << "\n"
- "trie " << std::setw(length) << (sizes[2] / divide) << " without quantization\n"
- "trie " << std::setw(length) << (sizes[3] / divide) << " assuming -q " << (unsigned)config.prob_bits << " -b " << (unsigned)config.backoff_bits << " quantization \n"
- "trie " << std::setw(length) << (sizes[4] / divide) << " assuming -a " << (unsigned)config.pointer_bhiksha_bits << " array pointer compression\n"
- "trie " << std::setw(length) << (sizes[5] / divide) << " assuming -a " << (unsigned)config.pointer_bhiksha_bits << " -q " << (unsigned)config.prob_bits << " -b " << (unsigned)config.backoff_bits<< " array pointer compression and quantization\n";
-}
-
void ProbingQuantizationUnsupported() {
std::cerr << "Quantization is only implemented in the trie data structure." << std::endl;
exit(1);
@@ -136,11 +102,14 @@ void ProbingQuantizationUnsupported() {
int main(int argc, char *argv[]) {
using namespace lm::ngram;
+ const char *default_mem = util::GuessPhysicalMemory() ? "80%" : "1G";
+
try {
bool quantize = false, set_backoff_bits = false, bhiksha = false, set_write_method = false, rest = false;
lm::ngram::Config config;
+ config.building_memory = util::ParseSize(default_mem);
int opt;
- while ((opt = getopt(argc, argv, "q:b:a:u:p:t:m:w:sir:")) != -1) {
+ while ((opt = getopt(argc, argv, "q:b:a:u:p:t:T:m:S:w:sir:")) != -1) {
switch(opt) {
case 'q':
config.prob_bits = ParseBitCount(optarg);
@@ -161,12 +130,16 @@ int main(int argc, char *argv[]) {
case 'p':
config.probing_multiplier = ParseFloat(optarg);
break;
- case 't':
+ case 't': // legacy
+ case 'T':
config.temporary_directory_prefix = optarg;
break;
- case 'm':
+ case 'm': // legacy
config.building_memory = ParseUInt(optarg) * 1048576;
break;
+ case 'S':
+ config.building_memory = std::min(static_cast<uint64_t>(std::numeric_limits<std::size_t>::max()), util::ParseSize(optarg));
+ break;
case 'w':
set_write_method = true;
if (!strcmp(optarg, "mmap")) {
@@ -174,7 +147,7 @@ int main(int argc, char *argv[]) {
} else if (!strcmp(optarg, "after")) {
config.write_method = Config::WRITE_AFTER;
} else {
- Usage(argv[0]);
+ Usage(argv[0], default_mem);
}
break;
case 's':
@@ -189,7 +162,7 @@ int main(int argc, char *argv[]) {
config.rest_function = Config::REST_LOWER;
break;
default:
- Usage(argv[0]);
+ Usage(argv[0], default_mem);
}
}
if (!quantize && set_backoff_bits) {
@@ -212,7 +185,7 @@ int main(int argc, char *argv[]) {
from_file = argv[optind + 1];
config.write_mmap = argv[optind + 2];
} else {
- Usage(argv[0]);
+ Usage(argv[0], default_mem);
}
if (!strcmp(model_type, "probing")) {
if (!set_write_method) config.write_method = Config::WRITE_AFTER;
@@ -242,7 +215,7 @@ int main(int argc, char *argv[]) {
}
}
} else {
- Usage(argv[0]);
+ Usage(argv[0], default_mem);
}
}
catch (const std::exception &e) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-02 00:48:47 +0300