Debug Lambda Cloud configuration and execution issues

[jeremymanning]

Problem Description

The Lambda Cloud GPU configuration appears to have deeper issues beyond the CUDA environment variables:

1. GPU Detection Still Failing: Despite adding CUDA environment variables, the Lambda Cloud tutorial GPU verification continues to fail
2. Jobs May Be Running Locally: No usage data appears in Lambda Cloud account, suggesting jobs might be executing locally instead of on Lambda Cloud instances
3. Configuration vs Execution Gap: The widget configuration may not be properly translating to actual remote execution

Evidence

• Lambda Cloud tutorial GPU verification fails
• No usage charges or logs visible in Lambda Cloud account dashboard
• Recent CUDA environment fix did not resolve the underlying issue

Investigation Needed

1. Execution Path Verification: Confirm whether jobs are actually being submitted to Lambda Cloud or falling back to local execution
2. Authentication & API Integration: Verify Lambda Cloud API key handling and instance provisioning
3. Configuration Propagation: Ensure widget settings properly translate to ClusterExecutor configuration
4. End-to-End Testing: Test complete workflow from configuration to result retrieval

Scope Extension

This investigation should be extended to all cloud providers to ensure:

• AWS configuration and execution works correctly
• Azure configuration and execution works correctly
• GCP configuration and execution works correctly
• HuggingFace Spaces configuration and execution works correctly

Acceptance Criteria

• Lambda Cloud jobs execute on actual Lambda Cloud instances (not locally)
• GPU verification passes in Lambda Cloud tutorial
• Usage data appears in Lambda Cloud account dashboard
• Similar verification completed for all cloud providers

Priority

High - This affects core cloud provider functionality and user experience