UniOrch: A Unified Mixed Framework for High-Efficiency LLM Training on Heterogeneous AI Chips. - Jingyi Wang; Jia Wang 038; Jun Gao; Yan Cao; Yang Zhai; Haojie Wang 004; Wanxin Song; Dezhi Kong; Liu Liu; Wei Li 008; Zhaofeng He 001 (IEEE Trans. Parallel Distributed Syst., 2026)