diff --git a/tests/integration/defs/agg_unit_mem_df.csv b/tests/integration/defs/agg_unit_mem_df.csv
index 2629c91b541..a33d05450fd 100644
--- a/tests/integration/defs/agg_unit_mem_df.csv
+++ b/tests/integration/defs/agg_unit_mem_df.csv
@@ -104,14 +104,14 @@ unittest/trt/model/test_mamba.py,NVIDIA H100,10,
 unittest/_torch/attention,NVIDIA Graphics Device,4,B200 Bring Up Board
 unittest/_torch/misc,NVIDIA Graphics Device,4,B200 Bring Up Board
 unittest/_torch/speculative,NVIDIA Graphics Device,4,B200 Bring Up Board
-unittest/_torch/thop/parallel,NVIDIA Graphics Device,4,B200 Bring Up Board
+unittest/_torch/thop/parallel,NVIDIA Graphics Device,16,B200 Bring Up Board
 "unittest/_torch/auto_deploy/unit/singlegpu -k ""not test_trtllm_bench_backend_comparison""",NVIDIA Graphics Device,4,B200 Bring Up Board
 unittest/_torch/attention,NVIDIA B200,4,
 unittest/_torch/misc,NVIDIA B200,4,
 unittest/_torch/speculative,NVIDIA B200,4,
-unittest/_torch/thop/parallel,NVIDIA B200,4,
+unittest/_torch/thop/parallel,NVIDIA B200,16,
 "unittest/_torch/auto_deploy/unit/singlegpu -k ""not test_trtllm_bench_backend_comparison""",NVIDIA B200,4,
 unittest/_torch/attention,NVIDIA H100,4,
 unittest/_torch/misc,NVIDIA H100,4,
 unittest/_torch/speculative,NVIDIA H100,2,
-unittest/_torch/thop/parallel,NVIDIA H100,4,
+unittest/_torch/thop/parallel,NVIDIA H100,16,
diff --git a/tests/unittest/_torch/thop/parallel/conftest.py b/tests/unittest/_torch/thop/parallel/conftest.py
new file mode 100644
index 00000000000..27911b32157
--- /dev/null
+++ b/tests/unittest/_torch/thop/parallel/conftest.py
@@ -0,0 +1,28 @@
+import os
+
+import pytest
+
+
+@pytest.fixture(autouse=True, scope='function')
+def set_torchinductor_compile_threads():
+    """
+    Fixture to set TORCHINDUCTOR_COMPILE_THREADS=1 for tests in this directory.
+    """
+    # --- Setup Phase ---
+    # Save the original value if it exists
+    original_value = os.environ.get('TORCHINDUCTOR_COMPILE_THREADS')
+
+    # Set the desired value for the test
+    os.environ['TORCHINDUCTOR_COMPILE_THREADS'] = '1'
+
+    # Let the test run with the new environment variable
+    yield
+
+    # --- Teardown Phase ---
+    # Restore the original environment state after the test is done
+    if original_value is None:
+        # If the variable didn't exist before, remove it
+        del os.environ['TORCHINDUCTOR_COMPILE_THREADS']
+    else:
+        # Otherwise, restore its original value
+        os.environ['TORCHINDUCTOR_COMPILE_THREADS'] = original_value
diff --git a/tests/unittest/pytest.ini b/tests/unittest/pytest.ini
index f1d72c7dbe6..1e93eae77ab 100644
--- a/tests/unittest/pytest.ini
+++ b/tests/unittest/pytest.ini
@@ -1,4 +1,5 @@
 [pytest]
+xdist_start_method = spawn
 asyncio_default_fixture_loop_scope = module
 threadleak = True
 threadleak_exclude = asyncio_\d+