Vast.ai Core Workflow B: Multi-Instance & Cost Optimization Overview Secondary workflow for Vast.ai: orchestrate multiple GPU instances for distributed training, implement automatic spot interruption recovery with checkpoint-based resume, and analyze spending to reduce per-job cost. Prerequisites - Completed - Understanding of distributed training (PyTorch DDP, DeepSpeed) - Checkpoint-based training pipeline Instructions Step 1: Multi-Instance Provisioning Step 2: Spot Interruption Recovery Step 3: Cost Analysis Step 4: Destroy Cluster Output - Multi-node GPU cluster provisioned from marketpl…