From a50d4a8b4bd820ca1e439b9bd74d5cc9e64c10b7 Mon Sep 17 00:00:00 2001
From: kustaaya <kustaaya@protonmail.com>
Date: Wed, 26 Jun 2024 15:12:55 +0300
Subject: [PATCH] Added support for Viking pre-tokenizer

---
 convert-hf-to-gguf-update.py | 1 +
 convert-hf-to-gguf.py        | 3 +++
 include/llama.h              | 1 +
 src/llama.cpp                | 9 +++++++++
 4 files changed, 14 insertions(+)

diff --git a/convert-hf-to-gguf-update.py b/convert-hf-to-gguf-update.py
index 67598b561e6cb..2758214fa8730 100755
--- a/convert-hf-to-gguf-update.py
+++ b/convert-hf-to-gguf-update.py
@@ -85,6 +85,7 @@ class TOKENIZER_TYPE(IntEnum):
     {"name": "smaug-bpe",      "tokt": TOKENIZER_TYPE.BPE, "repo": "https://huggingface.co/abacusai/Smaug-Llama-3-70B-Instruct", },
     {"name": "poro-chat",      "tokt": TOKENIZER_TYPE.BPE, "repo": "https://huggingface.co/LumiOpen/Poro-34B-chat", },
     {"name": "jina-v2-code",   "tokt": TOKENIZER_TYPE.BPE, "repo": "https://huggingface.co/jinaai/jina-embeddings-v2-base-code", },
+    {"name": "viking",         "tokt": TOKENIZER_TYPE.BPE, "repo": "https://huggingface.co/LumiOpen/Viking-7B", }, # Also used for Viking 13B and 33B
 ]
 
 
diff --git a/convert-hf-to-gguf.py b/convert-hf-to-gguf.py
index c26fad9307f15..5bf69ef9fa060 100755
--- a/convert-hf-to-gguf.py
+++ b/convert-hf-to-gguf.py
@@ -487,6 +487,9 @@ def get_vocab_base_pre(self, tokenizer) -> str:
         if chkhsh == "7967bfa498ade6b757b064f31e964dddbb80f8f9a4d68d4ba7998fcf281c531a":
             # ref: https://huggingface.co/jinaai/jina-embeddings-v2-base-code
             res = "jina-v2-code"
+        if chkhsh == "7fc505bd3104ca1083b150b17d088b59534ede9bde81f0dd2090967d7fe52cee":
+            # ref: https://huggingface.co/LumiOpen/Viking-7B
+            res = "viking"
 
         if res is None:
             logger.warning("\n")
diff --git a/include/llama.h b/include/llama.h
index 88eecb0edb17e..cafeafb85dbc7 100644
--- a/include/llama.h
+++ b/include/llama.h
@@ -88,6 +88,7 @@ extern "C" {
         LLAMA_VOCAB_PRE_TYPE_DBRX           = 13,
         LLAMA_VOCAB_PRE_TYPE_SMAUG          = 14,
         LLAMA_VOCAB_PRE_TYPE_PORO           = 15,
+        LLAMA_VOCAB_PRE_TYPE_VIKING         = 16,
     };
 
     // note: these values should be synchronized with ggml_rope
diff --git a/src/llama.cpp b/src/llama.cpp
index f78594a6f7c49..69a5e4c4f37e8 100644
--- a/src/llama.cpp
+++ b/src/llama.cpp
@@ -5067,6 +5067,9 @@ static void llm_load_vocab(
             } else if (
                 tokenizer_pre == "poro-chat") {
                 vocab.type_pre = LLAMA_VOCAB_PRE_TYPE_PORO;
+            } else if (
+                tokenizer_pre == "viking") {
+                vocab.type_pre = LLAMA_VOCAB_PRE_TYPE_VIKING;
             } else {
                 throw std::runtime_error(format("unknown pre-tokenizer type: '%s'", tokenizer_pre.c_str()));
             }
@@ -13703,6 +13706,12 @@ struct llm_tokenizer_bpe {
                     " ?[^(\\s|.,!?…。，、।۔،)]+",
                 };
                 break;
+            case LLAMA_VOCAB_PRE_TYPE_VIKING:
+                regex_exprs = {
+                    "\\p{N}",
+                    " ?[^(\\s|.,!?…。，、।۔،)]+",
+                };
+                break;
             default:
                 // default regex for BPE tokenization pre-processing
                 regex_exprs = {