PopFetcher: Towards Accelerated Mixture-of-Experts Training Via Popularity Based Expert-Wise Prefetch. - Junyi Zhang; Chuanhu Ma; Xiong Wang 006; Yuntao Nie; Yuqing Li; Yuedong Xu 001; Xiaofei Liao; Bo Li 001; Hai Jin 001 (USENIX ATC, 2025)