masahi commented on code in PR #10896:
URL: https://github.com/apache/tvm/pull/10896#discussion_r842117517
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tests/python/unittest/test_runtime_module_based_interface.py:
##########
@@ -674,6 +675,19 @@ def make_module(mod):
module_main.get_function("func_b", query_imports=True)
+def test_num_threads():
+ reported = tvm.runtime.num_threads()
+ env_threads = os.getenv("TVM_NUM_THREADS")
+ omp_env_threads = os.getenv("OMP_NUM_THREADS")
+ if env_threads is not None:
+ assert reported == env_threads
+ elif omp_env_threads is not None:
+ assert reported == omp_env_threads
+ else:
+ hardware_threads = os.cpu_count() / 2
+ assert reported == hardware_threads
Review Comment:
I think this is true only on x64
https://github.com/apache/tvm/blob/6ad7638be249fef0b2ce3f1112dd857e850949f1/src/runtime/threading_backend.cc#L304-L305
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