Weiwei Cai worked on stabilizing distributed benchmarking in the AMD-AGI/Primus repository, focusing on resolving a critical crash in the RCCL all-to-all benchmark. By deferring the use of torch.distributed.group.WORLD until after init_process_group() initialization, Weiwei addressed a subtle bug that previously caused execution failures and CI instability. This Python-based fix improved the reliability of distributed computing workflows and reduced debugging overhead for the team. The work demonstrated a strong understanding of benchmarking and process group management in distributed systems, resulting in more robust test infrastructure and smoother continuous integration for the project during the month-long contribution period.