明るくJavaエラーを説明するLLMモデル

java-error-gemma3_4b.ipynb

{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "df7c3391-e202-41a9-b206-2985f80b8e57",
   "metadata": {},
   "outputs": [],
   "source": [
    "max_seq_length = 2048\n",
    "model_name = \"unsloth/gemma-3-4b-it\"\n",
    "# model_name = \"unsloth/Llama-3.2-3B-Instruct\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "6296d8ac-dbca-4c9c-bbd0-41ebb075e467",
   "metadata": {},
   "outputs": [],
   "source": [
    "from unsloth import FastModel\n",
    "model, tokenizer = FastModel.from_pretrained(\n",
    "    model_name = \"unsloth/gemma-3-4b-it\",\n",
    "    max_seq_length = 2048, # Choose any for long context!\n",
    "    load_in_4bit = True,  # 4 bit quantization to reduce memory\n",
    "    load_in_8bit = False, # [NEW!] A bit more accurate, uses 2x memory\n",
    "    full_finetuning = False, # [NEW!] We have full finetuning now!\n",
    "    # token = \"hf_...\", # use one if using gated models\n",
    ")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "73711cac-2230-4ec5-95c7-4fc4c791769d",
   "metadata": {},
   "outputs": [],
   "source": [
    "model = FastModel.get_peft_model(\n",
    "    model,\n",
    "    finetune_vision_layers     = False, # Turn off for just text!\n",
    "    finetune_language_layers   = True,  # Should leave on!\n",
    "    finetune_attention_modules = True,  # Attention good for GRPO\n",
    "    finetune_mlp_modules       = True,  # SHould leave on always!\n",
    "\n",
    "    r = 8,           # Larger = higher accuracy, but might overfit\n",
    "    lora_alpha = 8,  # Recommended alpha == r at least\n",
    "    lora_dropout = 0,\n",
    "    bias = \"none\",\n",
    "    random_state = 3407,\n",
    ")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "77765bd3-d775-49e5-8160-79caa8e65101",
   "metadata": {},
   "outputs": [],
   "source": [
    "from unsloth.chat_templates import get_chat_template\n",
    "tokenizer = get_chat_template(\n",
    "    tokenizer,\n",
    "    chat_template = \"gemma-3\",\n",
    ")"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "9b30812f-5fb4-4202-b035-a9bbed0a3758",
   "metadata": {},
   "source": [
    "## データの準備"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "e40e7dda-5640-4853-bc15-e5f1602379b5",
   "metadata": {},
   "source": [
    "### 読み込み"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "3bdef308-62a8-4e8b-822b-4808254d8bda",
   "metadata": {},
   "outputs": [],
   "source": [
    "from datasets import load_dataset\n",
    "dataset = load_dataset(\"kishida/CompileError-Java-JP-cheerful\", split = \"train\")\n",
    "filtered = dataset.filter(lambda x: x[\"description\"] is not None)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "8f0457e5-51f0-48a1-b2cd-6ce663de4251",
   "metadata": {},
   "outputs": [],
   "source": [
    "print(len(dataset))\n",
    "print(len(filtered))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "b8e8dfeb-fe34-4dd1-8972-2c26ed02a1f0",
   "metadata": {},
   "outputs": [],
   "source": [
    "filtered[3]"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "4530e85c-c9af-4110-bdac-0dc1fa29b84e",
   "metadata": {},
   "source": [
    "### 変換"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "1bca54d4-85fe-4fc3-98e1-7dbe780c179b",
   "metadata": {},
   "outputs": [],
   "source": [
    "template = \"\"\"filename: {}\n",
    "## source\n",
    "{}\n",
    "\n",
    "## error message\n",
    "{}\n",
    "\"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "1dada887-8d30-45ff-8cda-7ddbbb670ff5",
   "metadata": {},
   "outputs": [],
   "source": [
    "system_prompt = \"\"\"You are a good Java error explainer.\n",
    "Please provide a concise explanation of the compilation error that occurred in the given source code.\n",
    "Do not provide the complete code you have fixed.\n",
    "\"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "696095de-afba-4e85-bcaa-5d23366e6b89",
   "metadata": {},
   "outputs": [],
   "source": [
    "def make_conv(example):\n",
    "    prompt = template.format(example[\"filename\"], example[\"code\"], example[\"compile_message\"])\n",
    "    return {\"conversations\": [\n",
    "        {\"content\": system_prompt, \"role\": \"system\"},\n",
    "        {\"content\": prompt, \"role\": \"user\"},\n",
    "        {\"content\": example[\"description\"], \"role\": \"assistant\"}]}\n",
    "dataset = filtered.map(make_conv, batched = False,)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "3b6836d5-a354-49f2-8c77-00fc2e3faa26",
   "metadata": {},
   "outputs": [],
   "source": [
    "def formatting_prompts_func(examples):\n",
    "    convos = examples[\"conversations\"]\n",
    "    texts = [tokenizer.apply_chat_template(conv, tokenize = False, add_generation_prompt = False) for conv in convos]\n",
    "    return {\"text\": texts, }\n",
    "dataset = dataset.map(formatting_prompts_func, batched = True,)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "b7093231-40ef-4235-9bbb-1441e03d6b2c",
   "metadata": {},
   "outputs": [],
   "source": [
    "dataset[3][\"text\"]"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "d38304a8-b44f-42f8-aa23-caccf3523a11",
   "metadata": {},
   "source": [
    "## 学習"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "3c9db459-f107-4dd7-9697-d29ab64d9453",
   "metadata": {},
   "outputs": [],
   "source": [
    "import wandb\n",
    "wandb.login()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "b78eeff9-1c3a-4cd9-bf8a-6837a14f338d",
   "metadata": {},
   "outputs": [],
   "source": [
    "from trl import SFTConfig, SFTTrainer\n",
    "from transformers import DataCollatorForSeq2Seq\n",
    "trainer = SFTTrainer(\n",
    "    model = model,\n",
    "    tokenizer = tokenizer,\n",
    "    train_dataset = dataset,\n",
    "    dataset_text_field = \"text\",\n",
    "    max_seq_length = max_seq_length,\n",
    "    data_collator = DataCollatorForSeq2Seq(tokenizer = tokenizer),\n",
    "    packing = False, # Can make training 5x faster for short sequences.\n",
    "    args = SFTConfig(\n",
    "        per_device_train_batch_size = 2,\n",
    "        gradient_accumulation_steps = 4,\n",
    "        warmup_steps = 5,\n",
    "        # num_train_epochs = 1, # Set this for 1 full training run.\n",
    "        max_steps = 250,\n",
    "        learning_rate = 2e-4,\n",
    "        logging_steps = 1,\n",
    "        optim = \"adamw_8bit\",\n",
    "        weight_decay = 0.001,\n",
    "        lr_scheduler_type = \"linear\",\n",
    "        seed = 3407,\n",
    "        output_dir = \"outputs\",\n",
    "        report_to = \"wandb\", # Use TrackIO/WandB etc\n",
    "    ),\n",
    ")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "ed5c3d82-1a7e-4b66-96b1-74fb8ee808e0",
   "metadata": {},
   "outputs": [],
   "source": [
    "tokenizer.decode(trainer.train_dataset[5][\"input_ids\"])"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "9e78cf40-fb12-42dd-8059-2b3b3f0bb488",
   "metadata": {},
   "source": [
    "### 学習開始"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "764f3e5d-72be-4367-8c99-d30712ff12fc",
   "metadata": {},
   "outputs": [],
   "source": [
    "import torch\n",
    "# @title Show current memory stats\n",
    "gpu_stats = torch.cuda.get_device_properties(0)\n",
    "start_gpu_memory = round(torch.cuda.max_memory_reserved() / 1024 / 1024 / 1024, 3)\n",
    "max_memory = round(gpu_stats.total_memory / 1024 / 1024 / 1024, 3)\n",
    "print(f\"GPU = {gpu_stats.name}. Max memory = {max_memory} GB.\")\n",
    "print(f\"{start_gpu_memory} GB of memory reserved.\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "3632ac67-9699-48c9-b8af-b1337de64d08",
   "metadata": {},
   "outputs": [],
   "source": [
    "trainer_stats = trainer.train()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "3ae3de7d-b8bf-4b8a-bac5-c6bdb41ddf6e",
   "metadata": {},
   "outputs": [],
   "source": [
    "wandb.finish()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "0d87c1e1-6e42-4e84-8e5e-600ef6fafad5",
   "metadata": {},
   "outputs": [],
   "source": [
    "# @title Show final memory and time stats\n",
    "used_memory = round(torch.cuda.max_memory_reserved() / 1024 / 1024 / 1024, 3)\n",
    "used_memory_for_lora = round(used_memory - start_gpu_memory, 3)\n",
    "used_percentage = round(used_memory / max_memory * 100, 3)\n",
    "lora_percentage = round(used_memory_for_lora / max_memory * 100, 3)\n",
    "print(f\"{trainer_stats.metrics['train_runtime']} seconds used for training.\")\n",
    "print(\n",
    "    f\"{round(trainer_stats.metrics['train_runtime']/60, 2)} minutes used for training.\"\n",
    ")\n",
    "print(f\"Peak reserved memory = {used_memory} GB.\")\n",
    "print(f\"Peak reserved memory for training = {used_memory_for_lora} GB.\")\n",
    "print(f\"Peak reserved memory % of max memory = {used_percentage} %.\")\n",
    "print(f\"Peak reserved memory for training % of max memory = {lora_percentage} %.\")"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "d659802f-6623-4899-9335-fd44db303421",
   "metadata": {},
   "source": [
    "## 推論"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "fdfa15af-b13c-4789-a1f1-e84c8fb39ac3",
   "metadata": {},
   "outputs": [],
   "source": [
    "sample = filtered[3]\n",
    "messages = [\n",
    "    {\"role\": \"system\", \"content\": [{\"type\":\"text\", \"text\": system_prompt}]},\n",
    "    {\"role\": \"user\", \"content\": [{\"type\":\"text\", \"text\" : template.format(sample[\"filename\"], sample[\"code\"], sample[\"compile_message\"])}]}]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "5e12a6af-79a7-4c83-aede-abc1a8a93b94",
   "metadata": {},
   "outputs": [],
   "source": [
    "sample[\"description\"]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "936d1ff9-fbed-4682-9ed7-60703daacec0",
   "metadata": {},
   "outputs": [],
   "source": [
    "# FastModel.for_inference(model) # Enable native 2x faster inference\n",
    "inputs = tokenizer.apply_chat_template(\n",
    "    messages,\n",
    "    tokenize = True,\n",
    "    # add_generation_prompt = True, # Must add for generation\n",
    "    return_tensors = \"pt\",\n",
    ").to(\"cuda\")\n",
    "from transformers import TextStreamer\n",
    "text_streamer = TextStreamer(tokenizer, skip_prompt = True)\n",
    "_ = model.generate(input_ids = inputs, streamer = text_streamer, max_new_tokens = 128,\n",
    "                   use_cache = True, temperature = 1.5, min_p = 0.1)"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "2ccf3578-8fdf-4fb0-8893-5244ca92949b",
   "metadata": {},
   "source": [
    "## 保存"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "ed39e906-d48f-401f-bc62-c5c1a83edadc",
   "metadata": {},
   "outputs": [],
   "source": [
    "model.save_pretrained_gguf(\"gemma3-cheerful\", tokenizer, quantization_method = \"q4_k_m\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "fc4bab4a-5bd5-4e47-a408-a018a1947029",
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3 (ipykernel)",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.11.13"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 5
}

java-error-llama3.2_3B.ipynb

java-error-Qwen3-4B.ipynb