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root_scripts/verify_env.sh

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+#!/bin/bash
+echo "=== Version Check ==="
+python3 << 'PYEOF'
+import torch
+print(f"PyTorch: {torch.__version__}")
+print(f"CUDA: {torch.version.cuda}")
+print(f"CXX11_ABI: {torch._C._GLIBCXX_USE_CXX11_ABI}")
+
+import vllm
+print(f"vLLM: {vllm.__version__}")
+
+import flash_attn
+print(f"flash_attn: {flash_attn.__version__}")
+
+import transformers
+print(f"transformers: {transformers.__version__}")
+
+import verl
+print("veRL: OK")
+
+# Test flash_attn actually works
+from flash_attn import flash_attn_func
+print("flash_attn_func: OK")
+
+print("ALL_CHECKS_PASSED")
+PYEOF
+