Revert the default size of piece length.

3 files changed, 9 insertions, 9 deletions

diff --git a/src/builtin_pb/sentencepiece_model.pb.cc b/src/builtin_pb/sentencepiece_model.pb.cc
index 20269f1..65ac2fc 100644
--- a/src/builtin_pb/sentencepiece_model.pb.cc
+++ b/src/builtin_pb/sentencepiece_model.pb.cc
@@ -349,7 +349,7 @@ void TrainerSpec::SharedCtor() {
   shrinking_factor_ = 0.75f;
   num_threads_ = 16;
   num_sub_iterations_ = 2;
-  max_sentence_length_ = 8192;
+  max_sentence_length_ = 4192;
   max_sentencepiece_length_ = 16;
   shuffle_input_sentence_ = true;
   split_by_unicode_script_ = true;
@@ -443,7 +443,7 @@ void TrainerSpec::Clear() {
   }
   if (cached_has_bits & 4278190080u) {
     num_sub_iterations_ = 2;
-    max_sentence_length_ = 8192;
+    max_sentence_length_ = 4192;
     max_sentencepiece_length_ = 16;
     shuffle_input_sentence_ = true;
     split_by_unicode_script_ = true;
@@ -687,7 +687,7 @@ bool TrainerSpec::MergePartialFromCodedStream(
         break;
       }
 
-      // optional int32 max_sentence_length = 18 [default = 8192];
+      // optional int32 max_sentence_length = 18 [default = 4192];
       case 18: {
         if (static_cast< ::google::protobuf::uint8>(tag) ==
             static_cast< ::google::protobuf::uint8>(144u /* 144 & 0xFF */)) {
@@ -1134,7 +1134,7 @@ void TrainerSpec::SerializeWithCachedSizes(
     ::google::protobuf::internal::WireFormatLite::WriteInt32(17, this->num_sub_iterations(), output);
   }
 
-  // optional int32 max_sentence_length = 18 [default = 8192];
+  // optional int32 max_sentence_length = 18 [default = 4192];
   if (cached_has_bits & 0x02000000u) {
     ::google::protobuf::internal::WireFormatLite::WriteInt32(18, this->max_sentence_length(), output);
   }
@@ -1487,7 +1487,7 @@ size_t TrainerSpec::ByteSizeLong() const {
           this->num_sub_iterations());
     }
 
-    // optional int32 max_sentence_length = 18 [default = 8192];
+    // optional int32 max_sentence_length = 18 [default = 4192];
     if (has_max_sentence_length()) {
       total_size += 2 +
         ::google::protobuf::internal::WireFormatLite::Int32Size(
diff --git a/src/builtin_pb/sentencepiece_model.pb.h b/src/builtin_pb/sentencepiece_model.pb.h
index febd9a0..eeab9cb 100644
--- a/src/builtin_pb/sentencepiece_model.pb.h
+++ b/src/builtin_pb/sentencepiece_model.pb.h
@@ -540,7 +540,7 @@ class TrainerSpec : public ::google::protobuf::MessageLite /* @@protoc_insertion
   ::google::protobuf::int32 num_sub_iterations() const;
   void set_num_sub_iterations(::google::protobuf::int32 value);
 
-  // optional int32 max_sentence_length = 18 [default = 8192];
+  // optional int32 max_sentence_length = 18 [default = 4192];
   bool has_max_sentence_length() const;
   void clear_max_sentence_length();
   static const int kMaxSentenceLengthFieldNumber = 18;
@@ -2070,7 +2070,7 @@ inline void TrainerSpec::set_shrinking_factor(float value) {
   // @@protoc_insertion_point(field_set:sentencepiece.TrainerSpec.shrinking_factor)
 }
 
-// optional int32 max_sentence_length = 18 [default = 8192];
+// optional int32 max_sentence_length = 18 [default = 4192];
 inline bool TrainerSpec::has_max_sentence_length() const {
   return (_has_bits_[0] & 0x02000000u) != 0;
 }
@@ -2081,7 +2081,7 @@ inline void TrainerSpec::clear_has_max_sentence_length() {
   _has_bits_[0] &= ~0x02000000u;
 }
 inline void TrainerSpec::clear_max_sentence_length() {
-  max_sentence_length_ = 8192;
+  max_sentence_length_ = 4192;
   clear_has_max_sentence_length();
 }
 inline ::google::protobuf::int32 TrainerSpec::max_sentence_length() const {
diff --git a/src/sentencepiece_model.proto b/src/sentencepiece_model.proto
index 2013283..fe7bef7 100644
--- a/src/sentencepiece_model.proto
+++ b/src/sentencepiece_model.proto
@@ -103,7 +103,7 @@ message TrainerSpec {
   // Longer input tends to bring the following risks:
   //  * Overflow during EM training (unigram language model only)
   //  * Performance drop because of O(n log n) cost in BPE.
-  optional int32 max_sentence_length = 18 [default = 8192];
+  optional int32 max_sentence_length = 18 [default = 4192];
 
   // Number of threads in the training.
   optional int32 num_threads = 16 [default = 16];