feat: add spot instance support to AWS VM creation#104
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Add spot=True parameter to AWSVMManager.create_vm() which sets InstanceMarketOptions for one-time spot pricing with terminate-on- interruption behavior. Wire --spot flag through train_verl_e2e.py CLI. Saves ~50% on GPU training costs (e.g. g5.xlarge $0.43/hr vs $1.006/hr). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
spot: bool = Falseparameter toAWSVMManager.create_vm()withInstanceMarketOptionsfor EC2--spotCLI flag toscripts/train_verl_e2e.py(AWS only, warns on other clouds)docs/spot_instance_analysis.mdTest plan
--spotflag logs "(spot)" in output--spotis passed🤖 Generated with Claude Code