[ColossalChat] Update RLHF V2 (#5286)

* Add dpo. Fix sft, ppo, lora. Refactor all

* fix and tested ppo

* 2 nd round refactor

* add ci tests

* fix ci

* fix ci

* fix readme, style

* fix readme style

* fix style, fix benchmark

* reproduce benchmark result, remove useless files

* rename to ColossalChat

* use new image

* fix ci workflow

* fix ci

* use local model/tokenizer for ci tests

* fix ci

* fix ci

* fix ci

* fix ci timeout

* fix rm progress bar. fix ci timeout

* fix ci

* fix ci typo

* remove 3d plugin from ci temporary

* test environment

* cannot save optimizer

* support chat template

* fix readme

* fix path

* test ci locally

* restore build_or_pr

* fix ci data path

* fix benchmark

* fix ci, move ci tests to 3080, disable fast tokenizer

* move ci to 85

* support flash attention 2

* add all-in-one data preparation script. Fix colossal-llama2-chat chat template

* add hardware requirements

* move ci test data

* fix save_model, add unwrap

* fix missing bos

* fix missing bos; support grad accumulation with gemini

* fix ci

* fix ci

* fix ci

* fix llama2 chat template config

* debug sft

* debug sft

* fix colossalai version requirement

* fix ci

* add sanity check to prevent NaN loss

* fix requirements

* add dummy data generation script

* add dummy data generation script

* add dummy data generation script

* add dummy data generation script

* update readme

* update readme

* update readme and ignore

* fix logger bug

* support parallel_output

* modify data preparation logic

* fix tokenization

* update lr

* fix inference

* run pre-commit

---------

Co-authored-by: Tong Li <tong.li352711588@gmail.com>
This commit is contained in:
YeAnbang
2024-03-29 14:12:29 +08:00
committed by GitHub
parent 36c4bb2893
commit df5e9c53cf
200 changed files with 8848 additions and 8049 deletions

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10.20.1.82

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import argparse
import json
import os
import resource
from contextlib import nullcontext
import torch
from coati.dataset import (
DataCollatorForPreferenceDataset,
StatefulDistributedSampler,
load_tokenized_dataset,
setup_distributed_dataloader,
)
from coati.models import convert_to_lora_module, disable_dropout
from coati.trainer import DPOTrainer
from coati.utils import load_checkpoint
from transformers import AutoModelForCausalLM, AutoTokenizer
import colossalai
from colossalai.booster import Booster
from colossalai.booster.plugin import GeminiPlugin, HybridParallelPlugin, LowLevelZeroPlugin
from colossalai.cluster import DistCoordinator
from colossalai.nn.lr_scheduler import CosineAnnealingWarmupLR
from colossalai.nn.optimizer import HybridAdam
from colossalai.utils import get_current_device
from colossalai.logging import get_dist_logger
logger = get_dist_logger()
def train(args):
# check lora compatibility
if "gemini" in args.plugin and args.lora_rank > 0:
raise ValueError("LoRA is not supported in GeminiPlugin. Please use other plugin")
if args.plugin == "gemini_auto" and args.accumulation_steps > 1:
raise ValueError("Gradient accumulation is not supported in GeminiPlugin. Please use other plugin")
# ==============================
# Initialize Distributed Training
# ==============================
colossalai.launch_from_torch({})
coordinator = DistCoordinator()
# ==============================
# Initialize Booster
# ==============================
if args.plugin == "ddp":
"""
Default torch ddp plugin without any acceleration, for
debugging purpose acceleration, for debugging purpose
"""
plugin = TorchDDPPlugin(find_unused_parameters=True)
elif args.plugin == "gemini":
plugin = GeminiPlugin(
precision=args.mixed_precision,
placement_policy="static",
initial_scale=2**16,
max_norm=args.grad_clip,
enable_gradient_accumulation=True,
)
elif args.plugin == "gemini_auto":
plugin = GeminiPlugin(
precision=args.mixed_precision,
placement_policy="auto",
initial_scale=2**16,
max_norm=args.grad_clip,
)
elif args.plugin == "zero2":
plugin = LowLevelZeroPlugin(
stage=2,
precision=args.mixed_precision,
initial_scale=2**16,
max_norm=args.grad_clip,
)
elif args.plugin == "zero2_cpu":
plugin = LowLevelZeroPlugin(
stage=2,
precision=args.mixed_precision,
initial_scale=2**16,
cpu_offload=True,
max_norm=args.grad_clip,
)
elif args.plugin == "3d":
plugin = HybridParallelPlugin(
tp_size=args.tp,
pp_size=1,
zero_stage=0,
parallel_output=False,
precision=args.mixed_precision,
)
else:
raise ValueError(f"Unknown plugin {args.plugin}")
booster = Booster(plugin=plugin)
ref_booster = Booster(plugin=plugin)
# ======================================================
# Initialize Model, Objective, Optimizer and LR Scheduler
# ======================================================
# Temp Fix: Disable lazy init due to version conflict
# init_ctx = (
# LazyInitContext(default_device=get_current_device()) if isinstance(plugin, (GeminiPlugin,)) else nullcontext()
# )
init_ctx = nullcontext()
with init_ctx:
if args.use_flash_attn:
model = AutoModelForCausalLM.from_pretrained(
args.pretrain,
torch_dtype=torch.bfloat16 if args.mixed_precision == "bf16" else torch.float16,
use_flash_attention_2=True,
)
coordinator.print_on_master(msg="Flash-attention enabled successfully")
else:
model = AutoModelForCausalLM.from_pretrained(args.pretrain)
disable_dropout(model)
if args.enable_reference_model:
if args.use_flash_attn:
ref_model = AutoModelForCausalLM.from_pretrained(
args.pretrain,
torch_dtype=torch.bfloat16 if args.mixed_precision == "bf16" else torch.float16,
use_flash_attention_2=True,
)
else:
ref_model = AutoModelForCausalLM.from_pretrained(args.pretrain)
disable_dropout(ref_model)
else:
ref_model = None
if args.lora_rank > 0:
model = convert_to_lora_module(model, args.lora_rank, lora_train_bias=args.lora_train_bias)
if args.grad_checkpoint and args.lora_rank == 0:
model.gradient_checkpointing_enable()
coordinator.print_on_master(msg="Gradient checkpointing enabled successfully")
elif args.lora_rank > 0:
coordinator.print_on_master(msg="Gradient checkpointing will be disabled when LoRA is enabled")
# configure tokenizer
tokenizer_dir = args.tokenizer_dir if args.tokenizer_dir is not None else args.pretrain
tokenizer = AutoTokenizer.from_pretrained(tokenizer_dir, use_fast=False, trust_remote_code=True)
if hasattr(tokenizer, "pad_token") and hasattr(tokenizer, "eos_token") and tokenizer.eos_token is not None:
try:
# Some tokenizers doesn't allow to set pad_token mannually e.g., Qwen
tokenizer.pad_token = tokenizer.eos_token
except AttributeError as e:
logger.warning(f"Unable to set pad token to eos token, {str(e)}")
if not hasattr(tokenizer, "pad_token") or tokenizer.pad_token is None:
logger.warning(
"The tokenizer does not have a pad token which is required. May lead to unintended behavior in training, Please consider manually set them."
)
tokenizer.add_bos_token = False
tokenizer.add_eos_token = False
# configure optimizer
optim = HybridAdam(
model_params=model.parameters(),
lr=args.lr,
betas=(0.9, 0.95),
weight_decay=args.weight_decay,
adamw_mode=True,
)
# configure dataset
coordinator.print_on_master(f"Load dataset: {args.dataset}")
mode_map = {"train": "train", "valid": "validation", "test": "test"}
train_dataset = load_tokenized_dataset(dataset_paths=args.dataset, mode="train", mode_map=mode_map)
data_collator = DataCollatorForPreferenceDataset(tokenizer=tokenizer, max_length=args.max_length)
train_dataloader = setup_distributed_dataloader(
dataset=train_dataset,
batch_size=args.batch_size,
shuffle=True,
drop_last=True,
collate_fn=data_collator,
use_tp=args.tp > 1,
)
num_update_steps_per_epoch = len(train_dataloader) // args.accumulation_steps
if args.warmup_steps is None:
args.warmup_steps = int(args.max_epochs * 0.025 * (len(train_dataloader) // args.accumulation_steps))
coordinator.print_on_master(f"Warmup steps is set to {args.warmup_steps}")
lr_scheduler = CosineAnnealingWarmupLR(
optimizer=optim,
total_steps=args.max_epochs * num_update_steps_per_epoch,
warmup_steps=args.warmup_steps,
eta_min=0.1 * args.lr,
)
default_dtype = torch.float16 if args.mixed_precision == "fp16" else torch.bfloat16
torch.set_default_dtype(default_dtype)
model, optim, _, train_dataloader, lr_scheduler = booster.boost(
model=model,
optimizer=optim,
lr_scheduler=lr_scheduler,
dataloader=train_dataloader,
)
if ref_model is not None:
ref_model, _, _, _, _ = ref_booster.boost(model=ref_model, dataloader=train_dataloader)
torch.set_default_dtype(torch.float)
coordinator.print_on_master(f"Booster init max CUDA memory: {torch.cuda.max_memory_allocated() / 1024 ** 2:.2f} MB")
coordinator.print_on_master(
f"Booster init max CPU memory: {resource.getrusage(resource.RUSAGE_SELF).ru_maxrss / 1024:.2f} MB"
)
start_epoch = 0
sampler_start_idx = 0
start_step = 0
if args.checkpoint_path is not None:
if "modeling" in args.checkpoint_path:
coordinator.print_on_master(f"Continued pretrain from checkpoint {args.checkpoint_path}")
booster.load_model(model, args.checkpoint_path)
else:
coordinator.print_on_master(f"Load model checkpoint from {args.checkpoint_path}")
start_epoch, start_step, sampler_start_idx = load_checkpoint(
load_dir=args.checkpoint_path,
booster=booster,
model=model,
optimizer=optim,
lr_scheduler=lr_scheduler,
)
assert isinstance(train_dataloader.sampler, StatefulDistributedSampler)
train_dataloader.sampler.set_start_index(start_index=sampler_start_idx)
coordinator.print_on_master(
f"Loaded checkpoint {args.checkpoint_path} at epoch {start_epoch} step {start_step}"
)
coordinator.print_on_master(f"Loaded sample at index {sampler_start_idx}")
coordinator.print_on_master(
f"Checkpoint loaded max CUDA memory: {torch.cuda.max_memory_allocated() / 1024 ** 2:.2f} MB"
)
coordinator.print_on_master(
f"Checkpoint loaded CUDA memory: {torch.cuda.memory_allocated() / 1024 ** 2:.2f} MB"
)
coordinator.print_on_master(
f"Checkpoint loaded max CPU memory: {resource.getrusage(resource.RUSAGE_SELF).ru_maxrss / 1024:.2f} MB"
)
trainer = DPOTrainer(
actor=model,
ref_model=ref_model,
booster=booster,
actor_optim=optim,
actor_lr_scheduler=lr_scheduler,
tokenizer=tokenizer,
max_epochs=args.max_epochs,
accumulation_steps=args.accumulation_steps,
start_epoch=start_epoch,
save_interval=args.save_interval,
save_dir=args.save_dir,
coordinator=coordinator,
)
trainer.fit(
train_preference_dataloader=train_dataloader,
eval_preference_dataloader=None,
log_dir=args.log_dir,
use_wandb=args.use_wandb,
)
if args.lora_rank > 0 and args.merge_lora_weights:
from coati.models.lora import LORA_MANAGER
# NOTE: set model to eval to merge LoRA weights
LORA_MANAGER.merge_weights = True
model.eval()
# save model checkpoint after fitting on only rank0
coordinator.print_on_master("Start saving final model checkpoint")
booster.save_model(model, os.path.join(args.save_dir, "modeling"), shard=True)
coordinator.print_on_master(f"Saved final model checkpoint at epoch {args.max_epochs} at folder {args.save_dir}")
coordinator.print_on_master(f"Max CUDA memory usage: {torch.cuda.max_memory_allocated()/1024**2:.2f} MB")
if __name__ == "__main__":
# ==============================
# Parse Arguments
# ==============================
parser = argparse.ArgumentParser()
parser.add_argument(
"--plugin",
type=str,
default="gemini",
choices=["gemini", "gemini_auto", "zero2", "zero2_cpu", "3d"],
help="Choose which plugin to use",
)
parser.add_argument("--grad_clip", type=float, default=1.0, help="Gradient clipping value")
parser.add_argument("--weight_decay", type=float, default=0.1, help="Weight decay")
parser.add_argument("--warmup_steps", type=int, default=None, help="Warmup steps")
parser.add_argument("--tp", type=int, default=1)
parser.add_argument("--pretrain", type=str, default=None)
parser.add_argument("--model_type", type=str, default=None)
parser.add_argument("--tokenizer_dir", type=str, default=None)
parser.add_argument("--dataset", nargs="+", default=[])
parser.add_argument(
"--checkpoint_path", type=str, default=None, help="Checkpoint path if need to resume training form a checkpoint"
)
parser.add_argument("--config_file", type=str, default="config_file", help="Config file")
parser.add_argument("--save_dir", type=str, default="output")
parser.add_argument("--max_length", type=int, default=2048, help="Model max length")
parser.add_argument("--max_epochs", type=int, default=3)
parser.add_argument("--batch_size", type=int, default=4)
parser.add_argument("--enable_reference_model", type=bool, default=True)
parser.add_argument("--mixed_precision", type=str, default="fp16", choices=["fp16", "bf16"], help="Mixed precision")
parser.add_argument("--lora_rank", type=int, default=0, help="low-rank adaptation matrices rank")
parser.add_argument(
"--lora_train_bias",
type=str,
default="none",
help="'none' means it doesn't train biases. 'all' means it trains all biases. 'lora_only' means it only trains biases of LoRA layers",
)
parser.add_argument("--save_interval", type=int, default=1000, help="number of step between two checkpoints")
parser.add_argument("--merge_lora_weights", type=bool, default=True)
parser.add_argument("--lr", type=float, default=5e-6)
parser.add_argument("--accumulation_steps", type=int, default=8)
parser.add_argument("--log_dir", default="logs", type=str)
parser.add_argument("--use_wandb", default=False, action="store_true")
parser.add_argument("--grad_checkpoint", default=False, action="store_true")
parser.add_argument("--use_flash_attn", default=False, action="store_true")
args = parser.parse_args()
os.makedirs(os.path.dirname(args.config_file), exist_ok=True)
with open(args.config_file, "w") as f:
json.dump(args.__dict__, f, indent=4)
train(args)

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#!/bin/bash
set_n_least_used_CUDA_VISIBLE_DEVICES() {
local n=${1:-"9999"}
echo "GPU Memory Usage:"
local FIRST_N_GPU_IDS=$(nvidia-smi --query-gpu=memory.used --format=csv |
tail -n +2 |
nl -v 0 |
tee /dev/tty |
sort -g -k 2 |
awk '{print $1}' |
head -n $n)
export CUDA_VISIBLE_DEVICES=$(echo $FIRST_N_GPU_IDS | sed 's/ /,/g')
echo "Now CUDA_VISIBLE_DEVICES is set to:"
echo "CUDA_VISIBLE_DEVICES=$CUDA_VISIBLE_DEVICES"
}
set_n_least_used_CUDA_VISIBLE_DEVICES 8
# export CUDA_VISIBLE_DEVICES=6
PROJECT_NAME="dpo"
PARENT_SAVE_DIR="" # Path to a folder to save checkpoints
PARENT_TENSORBOARD_DIR="" # Path to a folder to save logs
PARENT_CONFIG_FILE="" # Path to a folder to save training config logs
PRETRAINED_MODEL_PATH="" # huggingface or local model path
PRETRAINED_TOKENIZER_PATH="" # huggingface or local tokenizer path
declare -a dataset=(
YOUR/DATA/DIR/arrow/part-00000
YOUR/DATA/DIR/arrow/part-00001
YOUR/DATA/DIR/arrow/part-00002
YOUR/DATA/DIR/arrow/part-00003
YOUR/DATA/DIR/arrow/part-00004
YOUR/DATA/DIR/arrow/part-00005
YOUR/DATA/DIR/arrow/part-00006
YOUR/DATA/DIR/arrow/part-00007
YOUR/DATA/DIR/arrow/part-00008
YOUR/DATA/DIR/arrow/part-00009
)
TIMESTAMP=$(date +%Y-%m-%d-%H-%M-%S)
FULL_PROJECT_NAME="${PROJECT_NAME}-${TIMESTAMP}"
SAVE_DIR="${PARENT_SAVE_DIR}${FULL_PROJECT_NAME}"
CONFIG_FILE="${PARENT_CONFIG_FILE}-${FULL_PROJECT_NAME}.json"
colossalai run --nproc_per_node 8 --hostfile hostfile --master_port 31312 train_dpo.py \
--pretrain $PRETRAINED_MODEL_PATH \
--checkpoint_path $PRETRAINED_MODEL_PATH \
--tokenizer_dir $PRETRAINED_TOKENIZER_PATH \
--dataset ${dataset[@]} \
--plugin "zero2" \
--save_interval 1000 \
--save_dir $SAVE_DIR \
--config_file $CONFIG_FILE \
--max_epochs 1 \
--accumulation_steps 4 \
--batch_size 2 \
--lr 1e-6 \
--mixed_precision "bf16" \
--grad_clip 1.0 \
--weight_decay 0.01 \
--warmup_steps 100 \
--grad_checkpoint \
--use_wandb

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import argparse
import json
import os
import resource
from contextlib import nullcontext
import torch
import torch.distributed as dist
from coati.dataset import (
DataCollatorForPromptDataset,
DataCollatorForSupervisedDataset,
StatefulDistributedSampler,
load_tokenized_dataset,
setup_conversation_template,
setup_distributed_dataloader,
)
from coati.models import Critic, RewardModel, convert_to_lora_module, disable_dropout
from coati.trainer import PPOTrainer
from coati.utils import load_checkpoint
from transformers import AutoModelForCausalLM, AutoTokenizer
import colossalai
from colossalai.booster import Booster
from colossalai.booster.plugin import GeminiPlugin, HybridParallelPlugin, LowLevelZeroPlugin
from colossalai.cluster import DistCoordinator
from colossalai.logging import get_dist_logger
from colossalai.nn.lr_scheduler import CosineAnnealingWarmupLR
from colossalai.nn.optimizer import HybridAdam
logger = get_dist_logger()
def train(args):
# check lora compatibility
if "gemini" in args.plugin and args.lora_rank > 0:
raise ValueError("LoRA is not supported in GeminiPlugin. Please use other plugin")
if args.plugin == "gemini_auto" and args.accumulation_steps > 1:
raise ValueError("Gradient accumulation is not supported in GeminiPlugin. Please use other plugin")
# ==============================
# Initialize Distributed Training
# ==============================
colossalai.launch_from_torch({})
coordinator = DistCoordinator()
# ======================================================
# Initialize Model, Objective, Optimizer and LR Scheduler
# ======================================================
# Temp Fix: Disable lazy init due to version conflict
# init_ctx = (
# LazyInitContext(default_device=get_current_device()) if isinstance(plugin, (GeminiPlugin,)) else nullcontext()
# )
init_ctx = nullcontext()
booster_policy = None
with init_ctx:
if args.use_flash_attn:
actor = AutoModelForCausalLM.from_pretrained(
args.pretrain,
torch_dtype=torch.bfloat16 if args.mixed_precision == "bf16" else torch.float16,
use_flash_attention_2=True,
local_files_only=True,
)
ref_model = AutoModelForCausalLM.from_pretrained(
args.pretrain,
torch_dtype=torch.bfloat16 if args.mixed_precision == "bf16" else torch.float16,
use_flash_attention_2=True,
local_files_only=True,
)
reward_model = RewardModel(
args.rm_pretrain,
torch_dtype=torch.bfloat16 if args.mixed_precision == "bf16" else torch.float16,
use_flash_attention_2=True,
)
critic = Critic(
args.rm_pretrain,
torch_dtype=torch.bfloat16 if args.mixed_precision == "bf16" else torch.float16,
use_flash_attention_2=True,
)
coordinator.print_on_master(msg="Flash-attention enabled successfully")
else:
actor = AutoModelForCausalLM.from_pretrained(args.pretrain, local_files_only=True)
ref_model = AutoModelForCausalLM.from_pretrained(args.pretrain, local_files_only=True)
reward_model = RewardModel(args.rm_pretrain)
critic = Critic(args.rm_pretrain)
# Disable dropout
disable_dropout(actor)
disable_dropout(critic)
if args.tp > 1:
if reward_model.model.config.architectures[0] != critic.model.config.architectures[0]:
raise ValueError("Reward model and critic model must have the same architecture")
if reward_model.model.config.architectures[0] == "BloomForCausalLM":
from colossalai.shardformer.policies.bloom import BloomPolicy
booster_policy = BloomPolicy()
elif reward_model.model.config.architectures[0] == "LlamaForCausalLM":
from colossalai.shardformer.policies.llama import LlamaPolicy
booster_policy = LlamaPolicy()
elif reward_model.model.config.architectures[0] == "GPT2LMHeadModel":
from colossalai.shardformer.policies.gpt2 import GPT2Policy
booster_policy = GPT2Policy()
elif reward_model.model.config.architectures[0] == "ChatGLMModel":
from colossalai.shardformer.policies.chatglm2 import ChatGLMPolicy
booster_policy = ChatGLMPolicy()
elif reward_model.model.config.architectures[0] == "OPTForCausalLM":
from colossalai.shardformer.policies.opt import OPTPolicy
booster_policy = OPTPolicy()
else:
raise ValueError("Unknown model architecture for policy")
if args.lora_rank > 0:
actor = convert_to_lora_module(actor, args.lora_rank, lora_train_bias=args.lora_train_bias)
critic = convert_to_lora_module(critic, args.lora_rank, lora_train_bias=args.lora_train_bias)
if args.grad_checkpoint and args.lora_rank == 0:
actor.gradient_checkpointing_enable()
critic.model.gradient_checkpointing_enable()
coordinator.print_on_master(msg="Gradient checkpointing enabled successfully")
elif args.lora_rank > 0:
coordinator.print_on_master(msg="Gradient checkpointing will be disabled when LoRA is enabled")
# configure tokenizer
tokenizer_dir = args.tokenizer_dir if args.tokenizer_dir is not None else args.pretrain
tokenizer = AutoTokenizer.from_pretrained(tokenizer_dir, use_fast=False, trust_remote_code=True)
if os.path.exists(args.conversation_template_config):
with open(args.conversation_template_config, "r", encoding="utf8") as f:
conversation_template_config = json.load(f)
dist.barrier()
conversation_template = setup_conversation_template(
tokenizer, chat_template_config=conversation_template_config, save_path=args.conversation_template_config
)
stop_ids = conversation_template.stop_ids if len(conversation_template.stop_ids) > 0 else None
else:
raise ValueError("Conversation template config is not provided or incorrect")
if hasattr(tokenizer, "pad_token") and hasattr(tokenizer, "eos_token") and tokenizer.eos_token is not None:
try:
# Some tokenizers doesn't allow to set pad_token mannually e.g., Qwen
tokenizer.pad_token = tokenizer.eos_token
except AttributeError as e:
logger.warning(f"Unable to set pad token to eos token, {str(e)}")
if not hasattr(tokenizer, "pad_token") or tokenizer.pad_token is None:
logger.warning(
"The tokenizer does not have a pad token which is required. May lead to unintended behavior in training, Please consider manually set them."
)
tokenizer.add_bos_token = False
tokenizer.add_eos_token = False
tokenizer.padding_side = "left" # left padding for generation (online learning)
# configure generation config
actor.generation_config.update(
pad_token_id=tokenizer.eos_token_id, bos_token_id=tokenizer.bos_token_id, eos_token_id=tokenizer.eos_token_id
)
# configure optimizer
coordinator.print_on_master(f"setting up optimizer for actor: lr={args.lr}, weight_decay={args.weight_decay}")
actor_optim = HybridAdam(
model_params=actor.parameters(),
lr=args.lr,
betas=(0.9, 0.95),
weight_decay=args.weight_decay,
adamw_mode=True,
)
coordinator.print_on_master(f"setting up optimizer for critic: lr={args.lr}, weight_decay={args.weight_decay}")
critic_optim = HybridAdam(
model_params=critic.parameters(),
lr=args.critic_lr,
betas=(0.9, 0.95),
weight_decay=args.weight_decay,
adamw_mode=True,
)
# configure dataset
coordinator.print_on_master(f"Load dataset: {args.prompt_dataset}")
mode_map = {"train": "train", "valid": "validation", "test": "test"}
train_prompt_dataset = load_tokenized_dataset(dataset_paths=args.prompt_dataset, mode="train", mode_map=mode_map)
data_collator = DataCollatorForPromptDataset(tokenizer=tokenizer, max_length=args.max_length - args.max_seq_len)
train_prompt_dataloader = setup_distributed_dataloader(
dataset=train_prompt_dataset,
batch_size=args.experience_batch_size,
shuffle=True,
drop_last=True,
collate_fn=data_collator,
use_tp=args.tp > 1,
)
if len(args.ptx_dataset) > 0:
train_ptx_dataset = load_tokenized_dataset(dataset_paths=args.ptx_dataset, mode="train", mode_map=mode_map)
data_collator = DataCollatorForSupervisedDataset(tokenizer=tokenizer, max_length=args.max_length)
train_pretrain_dataloader = setup_distributed_dataloader(
dataset=train_ptx_dataset,
batch_size=args.ptx_batch_size,
shuffle=True,
drop_last=True,
collate_fn=data_collator,
use_tp=args.tp > 1,
)
else:
train_pretrain_dataloader = None
if args.warmup_steps is None:
args.warmup_steps = int(0.025 * args.num_episodes)
coordinator.print_on_master(f"Warmup steps is set to {args.warmup_steps}")
actor_lr_scheduler = CosineAnnealingWarmupLR(
optimizer=actor_optim,
total_steps=args.num_episodes,
warmup_steps=args.warmup_steps,
eta_min=0.1 * args.lr,
)
critic_lr_scheduler = CosineAnnealingWarmupLR(
optimizer=critic_optim,
total_steps=args.num_episodes,
warmup_steps=args.warmup_steps,
eta_min=0.1 * args.lr,
)
# ==============================
# Initialize Booster
# ==============================
if args.plugin == "ddp":
"""
Default torch ddp plugin without any acceleration, for
debugging purpose acceleration, for debugging purpose
"""
plugin = TorchDDPPlugin(find_unused_parameters=True)
elif args.plugin == "gemini":
plugin = GeminiPlugin(
precision=args.mixed_precision,
placement_policy="static",
initial_scale=2**16,
max_norm=args.grad_clip,
enable_gradient_accumulation=True,
)
elif args.plugin == "gemini_auto":
plugin = GeminiPlugin(
precision=args.mixed_precision,
placement_policy="auto",
initial_scale=2**16,
max_norm=args.grad_clip,
)
elif args.plugin == "zero2":
plugin = LowLevelZeroPlugin(
stage=2,
precision=args.mixed_precision,
initial_scale=2**16,
max_norm=args.grad_clip,
)
elif args.plugin == "zero2_cpu":
plugin = LowLevelZeroPlugin(
stage=2,
precision=args.mixed_precision,
initial_scale=2**16,
cpu_offload=True,
max_norm=args.grad_clip,
)
elif args.plugin == "3d":
plugin = HybridParallelPlugin(
tp_size=args.tp,
pp_size=1,
zero_stage=0,
parallel_output=False,
precision=args.mixed_precision,
)
custom_plugin = HybridParallelPlugin(
tp_size=args.tp,
pp_size=1,
zero_stage=0,
parallel_output=False,
precision=args.mixed_precision,
custom_policy=booster_policy,
)
else:
raise ValueError(f"Unknown plugin {args.plugin}")
if args.plugin != "3d":
custom_plugin = plugin
actor_booster = Booster(plugin=plugin)
ref_booster = Booster(plugin=plugin)
rm_booster = Booster(plugin=custom_plugin)
critic_booster = Booster(plugin=custom_plugin)
default_dtype = torch.float16 if args.mixed_precision == "fp16" else torch.bfloat16
torch.set_default_dtype(default_dtype)
actor, actor_optim, _, train_prompt_dataloader, actor_lr_scheduler = actor_booster.boost(
model=actor,
optimizer=actor_optim,
lr_scheduler=actor_lr_scheduler,
dataloader=train_prompt_dataloader,
)
critic, critic_optim, _, _, critic_lr_scheduler = critic_booster.boost(
model=critic,
optimizer=critic_optim,
lr_scheduler=critic_lr_scheduler,
dataloader=train_prompt_dataloader,
)
reward_model, _, _, _, _ = rm_booster.boost(model=reward_model, dataloader=train_prompt_dataloader)
ref_model, _, _, _, _ = ref_booster.boost(model=ref_model, dataloader=train_prompt_dataloader)
torch.set_default_dtype(torch.float)
coordinator.print_on_master(f"Booster init max CUDA memory: {torch.cuda.max_memory_allocated() / 1024 ** 2:.2f} MB")
coordinator.print_on_master(
f"Booster init max CPU memory: {resource.getrusage(resource.RUSAGE_SELF).ru_maxrss / 1024:.2f} MB"
)
sampler_start_idx = 0
start_step = 0
if args.rm_checkpoint_path is not None:
if "modeling" in args.rm_checkpoint_path:
rm_booster.load_model(reward_model, args.rm_checkpoint_path)
else:
_, _, _ = load_checkpoint(
load_dir=args.rm_checkpoint_path,
booster=rm_booster,
model=reward_model,
optimizer=None,
lr_scheduler=None,
)
coordinator.print_on_master(f"Loaded reward model checkpoint {args.rm_checkpoint_path}")
if args.checkpoint_path is not None:
if "modeling" in args.checkpoint_path:
actor_booster.load_model(actor, args.checkpoint_path)
ref_booster.load_model(ref_model, args.checkpoint_path)
coordinator.print_on_master(f"Loaded actor and reference model {args.checkpoint_path}")
else:
_, start_step, sampler_start_idx = load_checkpoint(
load_dir=args.checkpoint_path,
booster=actor_booster,
model=actor,
optimizer=actor_optim,
lr_scheduler=actor_lr_scheduler,
)
_, _, _ = load_checkpoint(
load_dir=args.checkpoint_path,
booster=ref_booster,
model=ref_model,
optimizer=critic_optim,
lr_scheduler=critic_lr_scheduler,
)
assert isinstance(train_prompt_dataloader.sampler, StatefulDistributedSampler)
train_prompt_dataloader.sampler.set_start_index(start_index=sampler_start_idx)
coordinator.print_on_master(
f"Loaded actor and reference model checkpoint {args.checkpoint_path} at spisode {start_step}"
)
coordinator.print_on_master(f"Loaded sample at index {sampler_start_idx}")
coordinator.print_on_master(
f"Checkpoint loaded max CUDA memory: {torch.cuda.max_memory_allocated() / 1024 ** 2:.2f} MB"
)
coordinator.print_on_master(
f"Checkpoint loaded CUDA memory: {torch.cuda.memory_allocated() / 1024 ** 2:.2f} MB"
)
coordinator.print_on_master(
f"Checkpoint loaded max CPU memory: {resource.getrusage(resource.RUSAGE_SELF).ru_maxrss / 1024:.2f} MB"
)
if args.critic_checkpoint_path is not None:
if "modeling" in args.critic_checkpoint_path:
critic_booster.load_model(critic, args.critic_checkpoint_path)
else:
_, _, _ = load_checkpoint(
load_dir=args.critic_checkpoint_path,
booster=critic_booster,
model=critic,
optimizer=critic_optim,
lr_scheduler=critic_lr_scheduler,
)
coordinator.print_on_master(f"Loaded critic checkpoint {args.critic_checkpoint_path}")
coordinator.print_on_master(
f"Checkpoint loaded max CUDA memory: {torch.cuda.max_memory_allocated() / 1024 ** 2:.2f} MB"
)
coordinator.print_on_master(
f"Checkpoint loaded CUDA memory: {torch.cuda.memory_allocated() / 1024 ** 2:.2f} MB"
)
coordinator.print_on_master(
f"Checkpoint loaded max CPU memory: {resource.getrusage(resource.RUSAGE_SELF).ru_maxrss / 1024:.2f} MB"
)
# configure trainer
trainer = PPOTrainer(
actor_booster,
critic_booster,
actor,
critic,
reward_model,
ref_model,
actor_optim,
critic_optim,
actor_lr_scheduler,
critic_lr_scheduler,
tokenizer=tokenizer,
stop_token_ids=stop_ids,
kl_coef=args.kl_coef,
ptx_coef=args.ptx_coef,
train_batch_size=args.train_batch_size,
buffer_limit=args.num_collect_steps * args.experience_batch_size,
max_length=args.max_length,
max_new_tokens=args.max_seq_len,
use_cache=True,
do_sample=True,
temperature=0.7,
accumulation_steps=args.accumulation_steps,
save_dir=args.save_path,
save_interval=args.save_interval,
top_k=50,
use_tp=args.tp > 1,
offload_inference_models="gemini" not in args.plugin,
coordinator=coordinator,
)
trainer.fit(
num_episodes=args.num_episodes,
num_collect_steps=args.num_collect_steps,
num_update_steps=args.num_update_steps,
prompt_dataloader=train_prompt_dataloader,
pretrain_dataloader=train_pretrain_dataloader,
log_dir=args.log_dir,
use_wandb=args.use_wandb,
)
if args.lora_rank > 0 and args.merge_lora_weights:
from coati.models.lora import LORA_MANAGER
# NOTE: set model to eval to merge LoRA weights
LORA_MANAGER.merge_weights = True
actor.eval()
critic.eval()
# save model checkpoint after fitting on only rank0
coordinator.print_on_master("Start saving final actor model checkpoint")
actor_booster.save_model(actor, os.path.join(trainer.actor_save_dir, "modeling"), shard=True)
coordinator.print_on_master(
f"Saved final actor model checkpoint at episodes {args.num_episodes} at folder {args.save_path}"
)
coordinator.print_on_master("Start saving final critic model checkpoint")
critic_booster.save_model(critic, os.path.join(trainer.critic_save_dir, "modeling"), shard=True)
coordinator.print_on_master(
f"Saved final critic model checkpoint at episodes {args.num_episodes} at folder {args.save_path}"
)
coordinator.print_on_master(f"Max CUDA memory usage: {torch.cuda.max_memory_allocated()/1024**2:.2f} MB")
if __name__ == "__main__":
parser = argparse.ArgumentParser()
parser.add_argument("--prompt_dataset", nargs="+", default=[])
parser.add_argument("--ptx_dataset", nargs="+", default=[])
parser.add_argument(
"--plugin",
type=str,
default="gemini",
choices=["gemini", "gemini_auto", "zero2", "zero2_cpu", "3d"],
help="Choose which plugin to use",
)
parser.add_argument(
"--conversation_template_config",
type=str,
default=None,
help="Path \
to save conversation template config files.",
)
parser.add_argument("--grad_clip", type=float, default=1.0, help="Gradient clipping value")
parser.add_argument("--weight_decay", type=float, default=0.1, help="Weight decay")
parser.add_argument("--warmup_steps", type=int, default=None, help="Warmup steps")
parser.add_argument("--tokenizer_dir", type=str, default=None)
parser.add_argument("--tp", type=int, default=1)
parser.add_argument("--pretrain", type=str, default=None)
parser.add_argument("--rm_pretrain", type=str, default=None)
parser.add_argument("--checkpoint_path", type=str, default=None)
parser.add_argument("--critic_checkpoint_path", type=str, default=None)
parser.add_argument("--rm_checkpoint_path", type=str, help="Reward model checkpoint path")
parser.add_argument("--save_path", type=str, default="actor_checkpoint_prompts")
parser.add_argument("--num_episodes", type=int, default=1)
parser.add_argument("--num_collect_steps", type=int, default=2)
parser.add_argument("--num_update_steps", type=int, default=5)
parser.add_argument("--save_interval", type=int, default=1000)
parser.add_argument("--train_batch_size", type=int, default=16)
parser.add_argument("--experience_batch_size", type=int, default=16)
parser.add_argument("--ptx_batch_size", type=int, default=4)
parser.add_argument("--lora_train_bias", type=str, default="none")
parser.add_argument("--mixed_precision", type=str, default="fp16", choices=["fp16", "bf16"], help="Mixed precision")
parser.add_argument("--accumulation_steps", type=int, default=8)
parser.add_argument("--lora_rank", type=int, default=0, help="low-rank adaptation matrices rank")
parser.add_argument("--merge_lora_weights", type=bool, default=True)
parser.add_argument("--lr", type=float, default=9e-6)
parser.add_argument("--critic_lr", type=float, default=9e-6)
parser.add_argument("--kl_coef", type=float, default=0.1)
parser.add_argument("--ptx_coef", type=float, default=0.0)
parser.add_argument("--max_length", type=int, default=2048)
parser.add_argument("--max_seq_len", type=int, default=256)
parser.add_argument("--log_dir", default="logs", type=str)
parser.add_argument("--use_wandb", default=False, action="store_true")
parser.add_argument("--grad_checkpoint", default=False, action="store_true")
parser.add_argument("--use_flash_attn", default=False, action="store_true")
args = parser.parse_args()
train(args)

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#!/bin/bash
set_n_least_used_CUDA_VISIBLE_DEVICES() {
local n=${1:-"9999"}
echo "GPU Memory Usage:"
local FIRST_N_GPU_IDS=$(nvidia-smi --query-gpu=memory.used --format=csv |
tail -n +2 |
nl -v 0 |
tee /dev/tty |
sort -g -k 2 |
awk '{print $1}' |
head -n $n)
export CUDA_VISIBLE_DEVICES=$(echo $FIRST_N_GPU_IDS | sed 's/ /,/g')
echo "Now CUDA_VISIBLE_DEVICES is set to:"
echo "CUDA_VISIBLE_DEVICES=$CUDA_VISIBLE_DEVICES"
}
set_n_least_used_CUDA_VISIBLE_DEVICES 8
PROJECT_NAME="ppo"
PARENT_SAVE_DIR="" # Path to a folder to save checkpoints
PARENT_TENSORBOARD_DIR="" # Path to a folder to save logs
PARENT_CONFIG_FILE="" # Path to a folder to save training config logs
PRETRAINED_MODEL_PATH="" # local pretrained model path (from RLHF step 1: SFT)
PRETRAINED_TOKENIZER_PATH="" # huggingface or local tokenizer path
REWARD_MODEL_PATH="" # local reward model path (from RLHF step 2: Train Reward Model)
CONVERSATION_TEMPLATE_CONFIG_PATH="" # path to the conversation config file
declare -a prompt_dataset=(
YOUR/PROMPT/DATA/DIR/arrow/part-00000
YOUR/PROMPT/DATA/DIR/arrow/part-00001
YOUR/PROMPT/DATA/DIR/arrow/part-00002
YOUR/PROMPT/DATA/DIR/arrow/part-00003
YOUR/PROMPT/DATA/DIR/arrow/part-00004
YOUR/PROMPT/DATA/DIR/arrow/part-00005
YOUR/PROMPT/DATA/DIR/arrow/part-00006
YOUR/PROMPT/DATA/DIR/arrow/part-00007
YOUR/PROMPT/DATA/DIR/arrow/part-00008
YOUR/PROMPT/DATA/DIR/arrow/part-00009
)
declare -a ptx_dataset=(
YOUR/SFT/DATA/DIR/arrow/part-00000
YOUR/SFT/DATA/DIR/arrow/part-00001
YOUR/SFT/DATA/DIR/arrow/part-00002
YOUR/SFT/DATA/DIR/arrow/part-00003
YOUR/SFT/DATA/DIR/arrow/part-00004
YOUR/SFT/DATA/DIR/arrow/part-00005
YOUR/SFT/DATA/DIR/arrow/part-00006
YOUR/SFT/DATA/DIR/arrow/part-00007
YOUR/SFT/DATA/DIR/arrow/part-00008
YOUR/SFT/DATA/DIR/arrow/part-00009
)
TIMESTAMP=$(date +%Y-%m-%d-%H-%M-%S)
FULL_PROJECT_NAME="${PROJECT_NAME}-${TIMESTAMP}"
SAVE_DIR="${PARENT_SAVE_DIR}${FULL_PROJECT_NAME}"
CONFIG_FILE="${PARENT_CONFIG_FILE}-${FULL_PROJECT_NAME}.json"
colossalai run --nproc_per_node 8 --hostfile hostfile --master_port 31312 train_ppo.py \
--pretrain $PRETRAINED_MODEL_PATH \
--rm_pretrain $PRETRAINED_MODEL_PATH \
--tokenizer_dir $PRETRAINED_TOKENIZER_PATH \
--rm_checkpoint_path $REWARD_MODEL_PATH \
--prompt_dataset ${prompt_dataset[@]} \
--conversation_template_config $CONVERSATION_TEMPLATE_CONFIG_PATH \
--ptx_coef 0.0 \
--plugin "zero2" \
--save_interval 500 \
--save_path $SAVE_DIR \
--num_episodes 2000 \
--num_collect_steps 2 \
--num_update_steps 1 \
--experience_batch_size 4 \
--train_batch_size 4 \
--accumulation_steps 2 \
--lr 9e-6 \
--mixed_precision "bf16" \
--grad_clip 0.1\
--weight_decay 0.01 \
--warmup_steps 40 \
--grad_checkpoint \
--use_wandb

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import argparse
import json
import math
import os
import resource
from contextlib import nullcontext
import torch
from coati.dataset import (
DataCollatorForPreferenceDataset,
StatefulDistributedSampler,
load_tokenized_dataset,
setup_distributed_dataloader,
)
from coati.models import LogExpLoss, LogSigLoss, RewardModel, convert_to_lora_module
from coati.trainer import RewardModelTrainer
from coati.utils import load_checkpoint
from transformers import AutoTokenizer
import colossalai
from colossalai.booster import Booster
from colossalai.booster.plugin import GeminiPlugin, HybridParallelPlugin, LowLevelZeroPlugin, TorchDDPPlugin
from colossalai.cluster import DistCoordinator
from colossalai.nn.lr_scheduler import CosineAnnealingWarmupLR
from colossalai.nn.optimizer import HybridAdam
def train(args):
# check lora compatibility
if "gemini" in args.plugin and args.lora_rank > 0:
raise ValueError("LoRA is not supported in GeminiPlugin. Please use other plugin")
if args.plugin == "gemini_auto" and args.accumulation_steps > 1:
raise ValueError("Gradient accumulation is not supported in GeminiPlugin. Please use other plugin")
# ==============================
# Initialize Distributed Training
# ==============================
colossalai.launch_from_torch({})
coordinator = DistCoordinator()
# ======================================================
# Initialize Model, Objective, Optimizer and LR Scheduler
# ======================================================
# Temp Fix: Disable lazy init due to version conflict
# init_ctx = (
# LazyInitContext(default_device=get_current_device()) if isinstance(plugin, (GeminiPlugin,)) else nullcontext()
# )
init_ctx = nullcontext()
booster_policy = None
with init_ctx:
if args.use_flash_attn:
model = RewardModel(
args.pretrain,
torch_dtype=torch.bfloat16 if args.mixed_precision == "bf16" else torch.float16,
use_flash_attention_2=True,
)
coordinator.print_on_master(msg="Flash-attention enabled successfully")
else:
model = RewardModel(args.pretrain)
if args.tp > 1:
if model.model.config.architectures[0] == "BloomForCausalLM":
from colossalai.shardformer.policies.bloom import BloomPolicy
booster_policy = BloomPolicy()
elif model.model.config.architectures[0] == "LlamaForCausalLM":
from colossalai.shardformer.policies.llama import LlamaPolicy
booster_policy = LlamaPolicy()
elif model.model.config.architectures[0] == "GPT2LMHeadModel":
from colossalai.shardformer.policies.gpt2 import GPT2Policy
booster_policy = GPT2Policy()
elif model.model.config.architectures[0] == "ChatGLMModel":
from colossalai.shardformer.policies.chatglm2 import ChatGLMPolicy
booster_policy = ChatGLMPolicy()
elif model.model.config.architectures[0] == "OPTForCausalLM":
from colossalai.shardformer.policies.opt import OPTPolicy
booster_policy = OPTPolicy()
else:
raise ValueError("Unknown model architecture for policy")
if args.lora_rank > 0:
model = convert_to_lora_module(model, args.lora_rank, lora_train_bias=args.lora_train_bias)
# ==============================
# Initialize Booster
# ==============================
if args.plugin == "ddp":
"""
Default torch ddp plugin without any acceleration, for
debugging purpose acceleration, for debugging purpose
"""
plugin = TorchDDPPlugin(find_unused_parameters=True)
elif args.plugin == "gemini":
plugin = GeminiPlugin(
precision=args.mixed_precision,
placement_policy="static",
initial_scale=2**16,
max_norm=args.grad_clip,
enable_gradient_accumulation=True,
)
elif args.plugin == "gemini_auto":
plugin = GeminiPlugin(
precision=args.mixed_precision,
placement_policy="auto",
initial_scale=2**16,
max_norm=args.grad_clip,
)
elif args.plugin == "zero2":
plugin = LowLevelZeroPlugin(
stage=2,
precision=args.mixed_precision,
initial_scale=2**16,
max_norm=args.grad_clip,
)
elif args.plugin == "zero2_cpu":
plugin = LowLevelZeroPlugin(
stage=2,
precision=args.mixed_precision,
initial_scale=2**16,
cpu_offload=True,
max_norm=args.grad_clip,
)
elif args.plugin == "3d":
plugin = HybridParallelPlugin(
tp_size=args.tp,
pp_size=1,
zero_stage=0,
parallel_output=False,
precision=args.mixed_precision,
custom_policy=booster_policy,
)
else:
raise ValueError(f"Unknown plugin {args.plugin}")
booster = Booster(plugin=plugin)
if args.grad_checkpoint and args.lora_rank == 0:
model.model.gradient_checkpointing_enable() # TODO: support gradient checkpoint for the last linear layer
coordinator.print_on_master(msg="Gradient checkpointing enabled successfully")
elif args.lora_rank > 0:
coordinator.print_on_master(msg="Gradient checkpointing will be disabled when LoRA is enabled")
# configure tokenizer
tokenizer_dir = args.tokenizer_dir if args.tokenizer_dir is not None else args.pretrain
tokenizer = AutoTokenizer.from_pretrained(tokenizer_dir, use_fast=False, trust_remote_code=True)
if hasattr(tokenizer, "pad_token") and hasattr(tokenizer, "eos_token") and tokenizer.eos_token is not None:
try:
# Some tokenizers doesn't allow to set pad_token mannually e.g., Qwen
tokenizer.pad_token = tokenizer.eos_token
except AttributeError as e:
logger.warning(f"Unable to set pad token to eos token, {str(e)}")
if not hasattr(tokenizer, "pad_token") or tokenizer.pad_token is None:
logger.warning(
"The tokenizer does not have a pad token which is required. May lead to unintended behavior in training, Please consider manually set them."
)
tokenizer.padding_side = "right"
tokenizer.add_bos_token = False
tokenizer.add_eos_token = False
# configure loss function
if args.loss_fn == "log_sig":
loss_fn = LogSigLoss()
elif args.loss_fn == "log_exp":
loss_fn = LogExpLoss()
else:
raise ValueError(f'Unsupported loss function "{args.loss_fn}"')
# configure optimizer
optim = HybridAdam(
model_params=model.parameters(),
lr=args.lr,
betas=(0.9, 0.95),
weight_decay=args.weight_decay,
adamw_mode=True,
)
# configure dataset
coordinator.print_on_master(f"Load dataset: {args.dataset}")
mode_map = {"train": "train", "valid": "validation", "test": "test"}
train_dataset = load_tokenized_dataset(dataset_paths=args.dataset, mode="train", mode_map=mode_map)
data_collator = DataCollatorForPreferenceDataset(tokenizer=tokenizer, max_length=args.max_length)
train_dataloader = setup_distributed_dataloader(
dataset=train_dataset,
batch_size=args.batch_size,
shuffle=True,
drop_last=True,
collate_fn=data_collator,
use_tp=args.tp > 1,
)
num_update_steps_per_epoch = len(train_dataloader) // args.accumulation_steps
math.ceil(args.max_epochs * num_update_steps_per_epoch)
if args.warmup_steps is None:
args.warmup_steps = int(args.max_epochs * 0.025 * (len(train_dataloader) // args.accumulation_steps))
coordinator.print_on_master(f"Warmup steps is set to {args.warmup_steps}")
lr_scheduler = CosineAnnealingWarmupLR(
optimizer=optim,
total_steps=args.max_epochs * num_update_steps_per_epoch,
warmup_steps=args.warmup_steps,
eta_min=0.1 * args.lr,
)
default_dtype = torch.float16 if args.mixed_precision == "fp16" else torch.bfloat16
torch.set_default_dtype(default_dtype)
model, optim, _, train_dataloader, lr_scheduler = booster.boost(
model=model,
optimizer=optim,
lr_scheduler=lr_scheduler,
dataloader=train_dataloader,
)
torch.set_default_dtype(torch.float)
coordinator.print_on_master(f"Booster init max CUDA memory: {torch.cuda.max_memory_allocated() / 1024 ** 2:.2f} MB")
coordinator.print_on_master(
f"Booster init max CPU memory: {resource.getrusage(resource.RUSAGE_SELF).ru_maxrss / 1024:.2f} MB"
)
start_epoch = 0
sampler_start_idx = 0
start_step = 0
if args.checkpoint_path is not None:
if "modeling" in args.checkpoint_path:
coordinator.print_on_master(f"Continued pretrain from checkpoint {args.checkpoint_path}")
booster.load_model(model, args.checkpoint_path)
else:
coordinator.print_on_master(f"Load model checkpoint from {args.checkpoint_path}")
start_epoch, start_step, sampler_start_idx = load_checkpoint(
load_dir=args.checkpoint_path,
booster=booster,
model=model,
optimizer=optim,
lr_scheduler=lr_scheduler,
)
assert isinstance(train_dataloader.sampler, StatefulDistributedSampler)
train_dataloader.sampler.set_start_index(start_index=sampler_start_idx)
coordinator.print_on_master(
f"Loaded checkpoint {args.checkpoint_path} at epoch {start_epoch} step {start_step}"
)
coordinator.print_on_master(f"Loaded sample at index {sampler_start_idx}")
coordinator.print_on_master(
f"Checkpoint loaded max CUDA memory: {torch.cuda.max_memory_allocated() / 1024 ** 2:.2f} MB"
)
coordinator.print_on_master(
f"Checkpoint loaded CUDA memory: {torch.cuda.memory_allocated() / 1024 ** 2:.2f} MB"
)
coordinator.print_on_master(
f"Checkpoint loaded max CPU memory: {resource.getrusage(resource.RUSAGE_SELF).ru_maxrss / 1024:.2f} MB"
)
trainer = RewardModelTrainer(
model,
booster,
optim,
lr_scheduler,
tokenizer,
loss_fn=loss_fn,
max_epochs=args.max_epochs,
accumulation_steps=args.accumulation_steps,
start_epoch=start_epoch,
save_interval=args.save_interval,
save_dir=args.save_dir,
coordinator=coordinator,
)
trainer.fit(
train_preference_dataloader=train_dataloader,
eval_preference_dataloader=None,
log_dir=args.log_dir,
use_wandb=args.use_wandb,
)
if args.lora_rank > 0 and args.merge_lora_weights:
from coati.models.lora import LORA_MANAGER
# NOTE: set model to eval to merge LoRA weights
LORA_MANAGER.merge_weights = True
model.eval()
# save model checkpoint after fitting on only rank0
coordinator.print_on_master("Start saving final model checkpoint")
booster.save_model(model, os.path.join(args.save_dir, "modeling"), shard=True)
coordinator.print_on_master(f"Saved final model checkpoint at epoch {args.max_epochs} at folder {args.save_dir}")
coordinator.print_on_master(f"Max CUDA memory usage: {torch.cuda.max_memory_allocated()/1024**2:.2f} MB")
if __name__ == "__main__":
# ==============================
# Parse Arguments
# ==============================
parser = argparse.ArgumentParser()
parser.add_argument(
"--plugin",
type=str,
default="gemini",
choices=["gemini", "gemini_auto", "zero2", "zero2_cpu", "3d", "ddp"],
help="Choose which plugin to use",
)
parser.add_argument("--grad_clip", type=float, default=1.0, help="Gradient clipping value")
parser.add_argument("--weight_decay", type=float, default=0.1, help="Weight decay")
parser.add_argument("--warmup_steps", type=int, default=None, help="Warmup steps")
parser.add_argument("--tp", type=int, default=1)
parser.add_argument("--pretrain", type=str, default=None)
parser.add_argument("--tokenizer_dir", type=str, default=None)
parser.add_argument("--dataset", nargs="+", default=[])
parser.add_argument(
"--checkpoint_path", type=str, default=None, help="Checkpoint path if need to resume training form a checkpoint"
)
parser.add_argument("--config_file", type=str, default="config_file", help="Config file")
parser.add_argument("--save_dir", type=str, default="output")
parser.add_argument("--max_length", type=int, default=2048, help="Model max length")
parser.add_argument("--max_epochs", type=int, default=3)
parser.add_argument("--batch_size", type=int, default=4)
parser.add_argument("--mixed_precision", type=str, default="fp16", choices=["fp16", "bf16"], help="Mixed precision")
parser.add_argument("--loss_fn", type=str, default="log_sig", choices=["log_sig", "log_exp"], help="Loss function")
parser.add_argument("--lora_rank", type=int, default=0, help="low-rank adaptation matrices rank")
parser.add_argument(
"--lora_train_bias",
type=str,
default="none",
help="'none' means it doesn't train biases. 'all' means it trains all biases. 'lora_only' means it only trains biases of LoRA layers",
)
parser.add_argument("--save_interval", type=int, default=1000, help="number of step between two checkpoints")
parser.add_argument("--merge_lora_weights", type=bool, default=True)
parser.add_argument("--lr", type=float, default=5e-6)
parser.add_argument("--accumulation_steps", type=int, default=8)
parser.add_argument("--log_dir", default="logs", type=str)
parser.add_argument("--use_wandb", default=False, action="store_true")
parser.add_argument("--grad_checkpoint", default=False, action="store_true")
parser.add_argument("--use_flash_attn", default=False, action="store_true")
args = parser.parse_args()
os.makedirs(os.path.dirname(args.config_file), exist_ok=True)
with open(args.config_file, "w") as f:
json.dump(args.__dict__, f, indent=4)
train(args)

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#!/bin/bash
set_n_least_used_CUDA_VISIBLE_DEVICES() {
local n=${1:-"9999"}
echo "GPU Memory Usage:"
local FIRST_N_GPU_IDS=$(nvidia-smi --query-gpu=memory.used --format=csv |
tail -n +2 |
nl -v 0 |
tee /dev/tty |
sort -g -k 2 |
awk '{print $1}' |
head -n $n)
export CUDA_VISIBLE_DEVICES=$(echo $FIRST_N_GPU_IDS | sed 's/ /,/g')
echo "Now CUDA_VISIBLE_DEVICES is set to:"
echo "CUDA_VISIBLE_DEVICES=$CUDA_VISIBLE_DEVICES"
}
set_n_least_used_CUDA_VISIBLE_DEVICES 8
PROJECT_NAME="rm"
PARENT_SAVE_DIR="" # Path to a folder to save checkpoints
PARENT_TENSORBOARD_DIR="" # Path to a folder to save logs
PARENT_CONFIG_FILE="" # Path to a folder to save training config logs
PRETRAINED_MODEL_PATH="" # huggingface or local model path
PRETRAINED_TOKENIZER_PATH="" # huggingface or local tokenizer path
declare -a dataset=(
YOUR/PREFERENCE/DATA/DIR/arrow/part-00000
YOUR/PREFERENCE/DATA/DIR/arrow/part-00001
YOUR/PREFERENCE/DATA/DIR/arrow/part-00002
YOUR/PREFERENCE/DATA/DIR/arrow/part-00003
YOUR/PREFERENCE/DATA/DIR/arrow/part-00004
YOUR/PREFERENCE/DATA/DIR/arrow/part-00005
YOUR/PREFERENCE/DATA/DIR/arrow/part-00006
YOUR/PREFERENCE/DATA/DIR/arrow/part-00007
YOUR/PREFERENCE/DATA/DIR/arrow/part-00008
YOUR/PREFERENCE/DATA/DIR/arrow/part-00009
)
TIMESTAMP=$(date +%Y-%m-%d-%H-%M-%S)
FULL_PROJECT_NAME="${PROJECT_NAME}-${TIMESTAMP}"
SAVE_DIR="${PARENT_SAVE_DIR}${FULL_PROJECT_NAME}"
CONFIG_FILE="${PARENT_CONFIG_FILE}-${FULL_PROJECT_NAME}.json"
colossalai run --nproc_per_node 8 --hostfile hostfile --master_port 31312 train_rm.py \
--pretrain $PRETRAINED_MODEL_PATH \
--checkpoint_path /home/yeanbang/data/experiments/rm/hhh_aligh/ckptllama2-rm-2024-01-17-14-43-24/epoch-1_step-1317/modeling \
--tokenizer_dir $PRETRAINED_TOKENIZER_PATH \
--dataset ${dataset[@]} \
--plugin "zero2" \
--save_interval 1000 \
--save_dir $SAVE_DIR \
--config_file $CONFIG_FILE \
--max_epochs 3 \
--accumulation_steps 1 \
--batch_size 8 \
--lr 5e-6 \
--mixed_precision "bf16" \
--grad_clip 1.0 \
--weight_decay 0.01 \
--warmup_steps 40 \
--grad_checkpoint \
--use_wandb

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import argparse
import json
import math
import os
import resource
from contextlib import nullcontext
import torch
from coati.dataset import DataCollatorForSupervisedDataset, load_tokenized_dataset, setup_distributed_dataloader
from coati.models import convert_to_lora_module
from coati.trainer import SFTTrainer
from coati.utils import load_checkpoint
from transformers import AutoModelForCausalLM, AutoTokenizer
import colossalai
from colossalai.booster import Booster
from colossalai.booster.plugin import GeminiPlugin, HybridParallelPlugin, LowLevelZeroPlugin, TorchDDPPlugin
from colossalai.cluster import DistCoordinator
from colossalai.nn.lr_scheduler import CosineAnnealingWarmupLR
from colossalai.nn.optimizer import HybridAdam
def train(args):
# check lora compatibility
if "gemini" in args.plugin and args.lora_rank > 0:
raise ValueError("LoRA is not supported in GeminiPlugin. Please use other plugin")
if args.plugin == "gemini_auto" and args.accumulation_steps > 1:
raise ValueError("Gradient accumulation is not supported in GeminiPlugin. Please use other plugin")
# ==============================
# Initialize Distributed Training
# ==============================
colossalai.launch_from_torch({})
coordinator = DistCoordinator()
# ==============================
# Initialize Booster
# ==============================
if args.plugin == "ddp":
"""
Default torch ddp plugin without any acceleration, for
debugging purpose acceleration, for debugging purpose
"""
plugin = TorchDDPPlugin(find_unused_parameters=True)
elif args.plugin == "gemini":
plugin = GeminiPlugin(
precision=args.mixed_precision,
placement_policy="static",
initial_scale=2**16,
max_norm=args.grad_clip,
enable_gradient_accumulation=True,
)
elif args.plugin == "gemini_auto":
plugin = GeminiPlugin(
precision=args.mixed_precision,
placement_policy="auto",
initial_scale=2**16,
max_norm=args.grad_clip,
)
elif args.plugin == "zero2":
plugin = LowLevelZeroPlugin(
stage=2,
precision=args.mixed_precision,
initial_scale=2**16,
max_norm=args.grad_clip,
)
elif args.plugin == "zero2_cpu":
plugin = LowLevelZeroPlugin(
stage=2,
precision=args.mixed_precision,
initial_scale=2**16,
cpu_offload=True,
max_norm=args.grad_clip,
)
elif args.plugin == "3d":
plugin = HybridParallelPlugin(
tp_size=args.tp,
pp_size=1,
zero_stage=0,
parallel_output=False,
max_norm=args.grad_clip,
precision=args.mixed_precision,
)
else:
raise ValueError(f"Unknown plugin {args.plugin}")
booster = Booster(plugin=plugin)
# ======================================================
# Initialize Model, Objective, Optimizer and LR Scheduler
# ======================================================
# Temp Fix: Disable lazy init due to version conflict
# init_ctx = (
# LazyInitContext(default_device=get_current_device()) if isinstance(plugin, (GeminiPlugin,)) else nullcontext()
# )
init_ctx = nullcontext()
with init_ctx:
if args.use_flash_attn:
model = AutoModelForCausalLM.from_pretrained(
args.pretrain,
torch_dtype=torch.bfloat16 if args.mixed_precision == "bf16" else torch.float16,
use_flash_attention_2=True,
)
coordinator.print_on_master(msg="Flash-attention enabled successfully")
else:
model = AutoModelForCausalLM.from_pretrained(args.pretrain)
if args.lora_rank > 0:
model = convert_to_lora_module(model, args.lora_rank, lora_train_bias=args.lora_train_bias)
if args.grad_checkpoint and args.lora_rank == 0:
# lora layers are not supported by gradient checkpointing
model.gradient_checkpointing_enable()
coordinator.print_on_master(msg="Gradient checkpointing enabled successfully")
elif args.lora_rank > 0:
coordinator.print_on_master(msg="Gradient checkpointing will be disabled when LoRA is enabled")
# configure tokenizer
tokenizer = AutoTokenizer.from_pretrained(
args.tokenizer_dir or args.pretrain, use_fast=False, trust_remote_code=True
)
if hasattr(tokenizer, "pad_token") and hasattr(tokenizer, "eos_token") and tokenizer.eos_token is not None:
try:
# Some tokenizers doesn't allow to set pad_token mannually e.g., Qwen
tokenizer.pad_token = tokenizer.eos_token
except AttributeError as e:
logger.warning(f"Unable to set pad token to eos token, {str(e)}")
if not hasattr(tokenizer, "pad_token") or tokenizer.pad_token is None:
logger.warning(
"The tokenizer does not have a pad token which is required. May lead to unintended behavior in training, Please consider manually set them."
)
tokenizer.add_bos_token = False
tokenizer.add_eos_token = False
coordinator.print_on_master(f"Configuration file will be saved at: {args.config_file}")
coordinator.print_on_master(f"Model checkpoint will be saved at: {args.save_path}")
# configure optimizer
optim = HybridAdam(
model_params=model.parameters(),
lr=args.lr,
betas=(0.9, 0.95),
weight_decay=args.weight_decay,
adamw_mode=True,
)
# configure dataset
coordinator.print_on_master(
f"Max CUDA memory before data loader: {torch.cuda.max_memory_allocated() / 1024 ** 2:.2f} MB"
)
dataset = load_tokenized_dataset(dataset_paths=args.dataset, mode="train")
data_collator = DataCollatorForSupervisedDataset(tokenizer=tokenizer, max_length=args.max_len)
train_dataloader = setup_distributed_dataloader(
dataset=dataset,
batch_size=args.batch_size,
shuffle=True,
drop_last=True,
collate_fn=data_collator,
use_tp=args.tp > 1,
)
coordinator.print_on_master(
f"Max CUDA memory after data loader: {torch.cuda.max_memory_allocated() / 1024 ** 2:.2f} MB"
)
num_update_steps_per_epoch = len(train_dataloader) // args.accumulation_steps
math.ceil(args.max_epochs * num_update_steps_per_epoch)
if args.warmup_steps is None:
args.warmup_steps = int(args.max_epochs * 0.025 * (len(train_dataloader) // args.accumulation_steps))
coordinator.print_on_master(f"Warmup steps is set to {args.warmup_steps}")
lr_scheduler = CosineAnnealingWarmupLR(
optimizer=optim,
total_steps=args.max_epochs * num_update_steps_per_epoch,
warmup_steps=args.warmup_steps,
eta_min=0.1 * args.lr,
)
# Flash attention will be disabled because it does NOT support fp32.
default_dtype = torch.float16 if args.mixed_precision == "fp16" else torch.bfloat16
torch.set_default_dtype(default_dtype)
model, optim, _, train_dataloader, lr_scheduler = booster.boost(
model=model,
optimizer=optim,
lr_scheduler=lr_scheduler,
dataloader=train_dataloader,
)
# model = model.to(get_current_device())
torch.set_default_dtype(torch.float)
coordinator.print_on_master(f"Booster init max CUDA memory: {torch.cuda.max_memory_allocated() / 1024 ** 2:.2f} MB")
coordinator.print_on_master(
f"Booster init max CPU memory: {resource.getrusage(resource.RUSAGE_SELF).ru_maxrss / 1024:.2f} MB"
)
start_epoch = 0
sampler_start_idx = 0
start_step = 0
if args.checkpoint_path is not None:
if "modeling" in args.checkpoint_path:
coordinator.print_on_master(f"Continued pretrain from checkpoint {args.checkpoint_path}")
booster.load_model(model, args.checkpoint_path)
else:
coordinator.print_on_master(f"Load model checkpoint from {args.checkpoint_path}")
start_epoch, start_step, sampler_start_idx = load_checkpoint(
load_dir=args.checkpoint_path,
booster=booster,
model=model,
optimizer=optim,
lr_scheduler=lr_scheduler,
)
train_dataloader.sampler.set_start_index(start_index=sampler_start_idx)
coordinator.print_on_master(
f"Loaded checkpoint {args.checkpoint_path} at epoch {start_epoch} step {start_step}"
)
coordinator.print_on_master(f"Loaded sample at index {sampler_start_idx}")
coordinator.print_on_master(
f"Checkpoint loaded max CUDA memory: {torch.cuda.max_memory_allocated() / 1024 ** 2:.2f} MB"
)
coordinator.print_on_master(
f"Checkpoint loaded CUDA memory: {torch.cuda.memory_allocated() / 1024 ** 2:.2f} MB"
)
coordinator.print_on_master(
f"Checkpoint loaded max CPU memory: {resource.getrusage(resource.RUSAGE_SELF).ru_maxrss / 1024:.2f} MB"
)
trainer = SFTTrainer(
model=model,
booster=booster,
optim=optim,
lr_scheduler=lr_scheduler,
max_epochs=args.max_epochs,
accumulation_steps=args.accumulation_steps,
start_epoch=start_epoch,
save_interval=args.save_interval,
save_dir=args.save_path,
coordinator=coordinator,
)
trainer.fit(
train_dataloader=train_dataloader,
eval_dataloader=None,
log_dir=args.log_dir,
use_wandb=args.use_wandb,
)
if args.lora_rank > 0 and args.merge_lora_weights:
from coati.models.lora import LORA_MANAGER
# NOTE: set model to eval to merge LoRA weights
LORA_MANAGER.merge_weights = True
model.eval()
# save model checkpoint after fitting on only rank0
coordinator.print_on_master("Start saving final model checkpoint")
booster.save_model(model, os.path.join(args.save_path, "modeling"), shard=True)
coordinator.print_on_master(f"Saved final model checkpoint at epoch {args.max_epochs} at folder {args.save_path}")
coordinator.print_on_master(f"Max CUDA memory usage: {torch.cuda.max_memory_allocated()/1024**2:.2f} MB")
if __name__ == "__main__":
# ==============================
# Parse Arguments
# ==============================
parser = argparse.ArgumentParser()
parser.add_argument(
"--plugin",
type=str,
default="gemini",
choices=["gemini", "gemini_auto", "zero2", "zero2_cpu", "3d", "ddp"],
help="Choose which plugin to use",
)
parser.add_argument("--grad_clip", type=float, default=1.0, help="Gradient clipping value")
parser.add_argument("--weight_decay", type=float, default=0.1, help="Weight decay")
parser.add_argument("--warmup_steps", type=int, default=None, help="Warmup steps")
parser.add_argument("--tp", type=int, default=1)
parser.add_argument("--pretrain", type=str, default=None)
parser.add_argument("--tokenizer_dir", type=str, default=None)
parser.add_argument("--dataset", nargs="+", default=[])
parser.add_argument(
"--checkpoint_path", type=str, default=None, help="Checkpoint path if need to resume training form a checkpoint"
)
parser.add_argument("--save_path", type=str, default="output")
parser.add_argument("--max_epochs", type=int, default=3)
parser.add_argument("--batch_size", type=int, default=4)
parser.add_argument("--max_len", type=int, default=512)
parser.add_argument("--mixed_precision", type=str, default="fp16", choices=["fp16", "bf16"], help="Mixed precision")
parser.add_argument("--lora_rank", type=int, default=0, help="low-rank adaptation matrices rank")
parser.add_argument(
"--lora_train_bias",
type=str,
default="none",
help="'none' means it doesn't train biases. 'all' means it trains all biases. 'lora_only' means it only trains biases of LoRA layers",
)
parser.add_argument("--save_interval", type=int, default=1000, help="number of step between two checkpoints")
parser.add_argument("--merge_lora_weights", type=bool, default=True)
parser.add_argument("--lr", type=float, default=5e-6)
parser.add_argument("--config_file", type=str, default="config_file", help="Config file")
parser.add_argument("--accumulation_steps", type=int, default=8)
parser.add_argument("--log_dir", default="logs", type=str)
parser.add_argument("--use_wandb", default=False, action="store_true")
parser.add_argument("--grad_checkpoint", default=False, action="store_true")
parser.add_argument("--use_flash_attn", default=False, action="store_true")
args = parser.parse_args()
os.makedirs(os.path.dirname(args.config_file), exist_ok=True)
with open(args.config_file, "w") as f:
json.dump(args.__dict__, f, indent=4)
train(args)

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set_n_least_used_CUDA_VISIBLE_DEVICES() {
local n=${1:-"9999"}
echo "GPU Memory Usage:"
local FIRST_N_GPU_IDS=$(nvidia-smi --query-gpu=memory.used --format=csv |
tail -n +2 |
nl -v 0 |
tee /dev/tty |
sort -g -k 2 |
awk '{print $1}' |
head -n $n)
export CUDA_VISIBLE_DEVICES=$(echo $FIRST_N_GPU_IDS | sed 's/ /,/g')
echo "Now CUDA_VISIBLE_DEVICES is set to:"
echo "CUDA_VISIBLE_DEVICES=$CUDA_VISIBLE_DEVICES"
}
# export CUDA_VISIBLE_DEVICES=4,5,6
set_n_least_used_CUDA_VISIBLE_DEVICES 4
PROJECT_NAME="sft"
PARENT_SAVE_DIR="" # Path to a folder to save checkpoints
PARENT_TENSORBOARD_DIR="" # Path to a folder to save logs
PARENT_CONFIG_FILE="" # Path to a folder to save training config logs
PRETRAINED_MODEL_PATH="" # huggingface or local model path
PRETRAINED_TOKENIZER_PATH="" # huggingface or local tokenizer path
declare -a dataset=(
YOUR/SFT/DATA/DIR/arrow/part-00000
YOUR/SFT/DATA/DIR/arrow/part-00001
YOUR/SFT/DATA/DIR/arrow/part-00002
YOUR/SFT/DATA/DIR/arrow/part-00003
YOUR/SFT/DATA/DIR/arrow/part-00004
YOUR/SFT/DATA/DIR/arrow/part-00005
YOUR/SFT/DATA/DIR/arrow/part-00006
YOUR/SFT/DATA/DIR/arrow/part-00007
YOUR/SFT/DATA/DIR/arrow/part-00008
YOUR/SFT/DATA/DIR/arrow/part-00009
)
TIMESTAMP=$(date +%Y-%m-%d-%H-%M-%S)
FULL_PROJECT_NAME="${PROJECT_NAME}-${TIMESTAMP}"
SAVE_DIR="${PARENT_SAVE_DIR}${FULL_PROJECT_NAME}"
CONFIG_FILE="${PARENT_CONFIG_FILE}-${FULL_PROJECT_NAME}.json"
# the real batch size for gradient descent is number_of_node_in_hostfile * nproc_per_node * train_batch_size
colossalai run --nproc_per_node 4 --master_port 31312 --hostfile ./hostfile train_sft.py \
--pretrain $PRETRAINED_MODEL_PATH \
--tokenizer_dir $PRETRAINED_TOKENIZER_PATH \
--save_interval 4000 \
--dataset ${dataset[@]} \
--save_path $SAVE_DIR \
--config_file $CONFIG_FILE \
--lora_rank 0 \
--plugin zero2 \
--batch_size 8 \
--max_epochs 1 \
--accumulation_steps 1 \
--lr 2e-5 \
--max_len 2048 \
--grad_checkpoint \
--use_wandb