NeutronHeter: Optimizing Distributed Graph Neural Network Training for Heterogeneous Clusters. - Chunyu Cao; Xin Ai 006; Qiange Wang; Yanfeng Zhang 001; Zhenbo Fu; Hao Yuan; Mingyi Cao; Chaoyi Chen; Yingyou Wen; Yu Gu 002; Ge Yu 001 (Proc. ACM Manag. Data, 2025)