Reinforcement Learning from Human Feedback (RLHF) is a pivotal technique for empowering large language model (LLM) applications.The RLHF training process for LLMs requires sophisticated parallelization strategies to improve training efficiency.To address this, a novel technique called parameter ReaLlocation is proposed, which dynamically adapts parallelization strategies during training.The ReaL system achieves significant speedups and performance improvement compared to baseline methods for RLHF training.