Zar\`e Palanciyan, Thomas van Osch, Douwe van der Wal, Olivera Kotevska, Tim Kok: Cross-Facility LLM Pre-training on HPC: Elastic Aggregation, Data Leasing, and Queue-Aware Placement arxiv.org/abs/2610.03457 arxiv.org/pdf/2610.03457 arxiv.org/html/2610.03457