[CI/Build][Bugfix] Fix CPU backend default threads num (#13077)

2025-02-12 00:55:56 +08:00
parent 2b25b7d2e1
commit 565c1efa65
1 changed files with 3 additions and 0 deletions
--- a/vllm/platforms/cpu.py
+++ b/vllm/platforms/cpu.py
@ -115,6 +115,9 @@ class CpuPlatform(Platform):
        # Environment variables for CPU executor
        #

+        # Set default threads num for OpenMP parallel
+        os.environ["OMP_NUM_THREADS"] = str(torch.get_num_threads())
+
        # Disable torch async compiling which won't work with daemonic processes
        os.environ["TORCHINDUCTOR_COMPILE_THREADS"] = "1"