From 4fbd8098e63670c6ae11a8adc350f5ba191cfda3 Mon Sep 17 00:00:00 2001 From: Daniel Bevenius Date: Tue, 16 Apr 2024 08:13:13 +0200 Subject: gguf : add special tokens metadata for FIM/Infill (#6689) This commit adds special token metadata for Fill-In-the-Middle (FIM)/Infill to the GGUF model. The motivation for this is that currently there is support for CodeLlama but other models exist now like CodeGemma, but the different models use different token ids for the special tokens and this commit allows for supporting multiple models. Signed-off-by: Daniel Bevenius --- llama.cpp | 58 +++++++++++++++++++++++++++++++++++++++++++++++----------- 1 file changed, 47 insertions(+), 11 deletions(-) (limited to 'llama.cpp') diff --git a/llama.cpp b/llama.cpp index a5ef2fd8..38e59362 100644 --- a/llama.cpp +++ b/llama.cpp @@ -327,6 +327,10 @@ enum llm_kv { LLM_KV_TOKENIZER_ADD_PREFIX, LLM_KV_TOKENIZER_HF_JSON, LLM_KV_TOKENIZER_RWKV, + LLM_KV_TOKENIZER_PREFIX_ID, + LLM_KV_TOKENIZER_SUFFIX_ID, + LLM_KV_TOKENIZER_MIDDLE_ID, + LLM_KV_TOKENIZER_EOT_ID, }; static const std::map LLM_KV_NAMES = { @@ -399,6 +403,10 @@ static const std::map LLM_KV_NAMES = { { LLM_KV_TOKENIZER_ADD_PREFIX, "tokenizer.ggml.add_space_prefix" }, { LLM_KV_TOKENIZER_HF_JSON, "tokenizer.huggingface.json" }, { LLM_KV_TOKENIZER_RWKV, "tokenizer.rwkv.world" }, + { LLM_KV_TOKENIZER_PREFIX_ID, "tokenizer.ggml.prefix_token_id" }, + { LLM_KV_TOKENIZER_SUFFIX_ID, "tokenizer.ggml.suffix_token_id" }, + { LLM_KV_TOKENIZER_MIDDLE_ID, "tokenizer.ggml.middle_token_id" }, + { LLM_KV_TOKENIZER_EOT_ID, "tokenizer.ggml.eot_token_id" }, }; struct LLM_KV { @@ -2055,10 +2063,10 @@ struct llama_vocab { int special_add_eos = -1; // -1 unknown, 1 add, 0 don't add. id linefeed_id = 13; - id special_prefix_id = 32007; - id special_middle_id = 32009; - id special_suffix_id = 32008; - id special_eot_id = 32010; + id special_prefix_id = -1; + id special_suffix_id = -1; + id special_middle_id = -1; + id special_eot_id = -1; bool add_space_prefix = true; @@ -4072,6 +4080,30 @@ static void llm_load_vocab( vocab.special_cls_id = -1; vocab.special_mask_id = -1; + // For Fill-In-the-Middle (FIM)/infill models which where converted + // prior to support of FIM special tokens in GGUF, the following + // will allow those models to continue to work. The general names + // of the known models are currently CodeLlama (LLM_ARCH_LLAMA) and + // CodeGemma (LLM_ARCH_GEMMA). This can potentially be removed once + // new versions of these models have been published. + std::string gen_name; + ml.get_key(LLM_KV_GENERAL_NAME, gen_name); + std::transform(gen_name.begin(), gen_name.end(), gen_name.begin(), + [](unsigned char c){ return std::tolower(c); }); + if (gen_name.find("code") != std::string::npos) { + if (model.arch == LLM_ARCH_LLAMA) { + vocab.special_prefix_id = 32007; + vocab.special_suffix_id = 32008; + vocab.special_middle_id = 32009; + vocab.special_eot_id = 32010; + } else if (model.arch == LLM_ARCH_GEMMA) { + vocab.special_prefix_id = 67; + vocab.special_suffix_id = 69; + vocab.special_middle_id = 68; + vocab.special_eot_id = 70; + } + } + const int add_space_prefix_keyidx = gguf_find_key(ctx, kv(LLM_KV_TOKENIZER_ADD_PREFIX).c_str()); if (add_space_prefix_keyidx != -1) { vocab.add_space_prefix = gguf_get_val_bool(ctx, add_space_prefix_keyidx); @@ -4185,13 +4217,17 @@ static void llm_load_vocab( // special tokens { const std::vector> special_token_types = { - { LLM_KV_TOKENIZER_BOS_ID, vocab.special_bos_id }, - { LLM_KV_TOKENIZER_EOS_ID, vocab.special_eos_id }, - { LLM_KV_TOKENIZER_UNK_ID, vocab.special_unk_id }, - { LLM_KV_TOKENIZER_SEP_ID, vocab.special_sep_id }, - { LLM_KV_TOKENIZER_PAD_ID, vocab.special_pad_id }, - { LLM_KV_TOKENIZER_CLS_ID, vocab.special_cls_id }, - { LLM_KV_TOKENIZER_MASK_ID, vocab.special_mask_id }, + { LLM_KV_TOKENIZER_BOS_ID, vocab.special_bos_id }, + { LLM_KV_TOKENIZER_EOS_ID, vocab.special_eos_id }, + { LLM_KV_TOKENIZER_UNK_ID, vocab.special_unk_id }, + { LLM_KV_TOKENIZER_SEP_ID, vocab.special_sep_id }, + { LLM_KV_TOKENIZER_PAD_ID, vocab.special_pad_id }, + { LLM_KV_TOKENIZER_CLS_ID, vocab.special_cls_id }, + { LLM_KV_TOKENIZER_MASK_ID, vocab.special_mask_id }, + { LLM_KV_TOKENIZER_PREFIX_ID, vocab.special_prefix_id }, + { LLM_KV_TOKENIZER_SUFFIX_ID, vocab.special_suffix_id }, + { LLM_KV_TOKENIZER_MIDDLE_ID, vocab.special_middle_id }, + { LLM_KV_TOKENIZER_EOT_ID, vocab.special_eot_id }, }; for (const auto & it : special_token_types) { const std::string & key = kv(std::get<0>(it)); -- cgit v1.2.3