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bcdf9fa | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | trainer:
nnodes: 1
n_gpus_per_node: 8
data:
path: ~/data/rlhf/math/test.parquet
prompt_key: prompt
n_samples: 5
output_path: /opt/tiger/math_Qwen2-7B-Instruct.parquet
batch_size: 128
model:
path: ~/models/Qwen2-7B-Instruct
external_lib: null
rollout:
name: vllm
mode: sync # sync: LLM, async: AsyncLLM
temperature: 1.0
top_k: 50 # 0 for hf rollout, -1 for vllm rollout
top_p: 0.7
prompt_length: 1536
response_length: 512
# for vllm rollout
dtype: bfloat16 # should align with FSDP
gpu_memory_utilization: 0.5
ignore_eos: False
enforce_eager: True
free_cache_engine: True
load_format: dummy_dtensor
tensor_model_parallel_size: 1
max_num_batched_tokens: 8192
max_model_len: null
max_num_seqs: 1024
log_prob_micro_batch_size: null # will be deprecated, use log_prob_micro_batch_size_per_gpu
log_prob_micro_batch_size_per_gpu: 8
# for fire vllm rollout
use_fire_sampling: False # enable FIRE https://arxiv.org/abs/2410.21236
# for hf rollout
do_sample: True
disable_log_stats: True
enable_chunked_prefill: True
n: 1
actor:
strategy: fsdp # This is for backward-compatibility
ulysses_sequence_parallel_size: 1 # sp size
fsdp_config:
fsdp_size: -1
ray_init:
num_cpus: null # `None` means using all CPUs, which might cause hang if limited in systems like SLURM. Please set to a number allowed then.
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