  Machine learning techniques are playing more and more important roles in
finance market investment. However, finance quantitative modeling with
conventional supervised learning approaches has a number of limitations. The
development of deep reinforcement learning techniques is partially addressing
these issues. Unfortunately, the steep learning curve and the difficulty in
quick modeling and agile development are impeding finance researchers from
using deep reinforcement learning in quantitative trading. In this paper, we
propose an RLOps in finance paradigm and present a FinRL-Podracer framework to
accelerate the development pipeline of deep reinforcement learning (DRL)-driven
trading strategy and to improve both trading performance and training
efficiency. FinRL-Podracer is a cloud solution that features high performance
and high scalability and promises continuous training, continuous integration,
and continuous delivery of DRL-driven trading strategies, facilitating a rapid
transformation from algorithmic innovations into a profitable trading strategy.
First, we propose a generational evolution mechanism with an ensemble strategy
to improve the trading performance of a DRL agent, and schedule the training of
a DRL algorithm onto a GPU cloud via multi-level mapping. Then, we carry out
the training of DRL components with high-performance optimizations on GPUs.
Finally, we evaluate the FinRL-Podracer framework for a stock trend prediction
task on an NVIDIA DGX SuperPOD cloud. FinRL-Podracer outperforms three popular
DRL libraries Ray RLlib, Stable Baseline 3 and FinRL, i.e., 12% \sim 35%
improvements in annual return, 0.1 \sim 0.6 improvements in Sharpe ratio and 3
times \sim 7 times speed-up in training time. We show the high scalability by
training a trading agent in 10 minutes with $80$ A100 GPUs, on NASDAQ-100
constituent stocks with minute-level data over 10 years.
