| 1 | #pragma once |
| 2 | #include <cstdlib> |
| 3 | #include <string> |
| 4 | |
| 5 | namespace vllm { |
| 6 | |
| 7 | // vllm_is_batch_invariant(); returns true |
| 8 | // if env VLLM_BATCH_INVARIANT=1 |
| 9 | inline bool vllm_is_batch_invariant() { |
| 10 | static bool cached = []() { |
| 11 | std::string env_key = "VLLM_BATCH_INVARIANT"; |
| 12 | const char* val = std::getenv(env_key.c_str()); |
| 13 | return (val && std::atoi(val) != 0) ? 1 : 0; |
| 14 | }(); |
| 15 | return cached; |
| 16 | } |
| 17 | |
| 18 | } // namespace vllm |