fix jobs count

Signed-off-by: Jack Luar <[email protected]>

Author: luarss

tools/AutoTuner/test/fast_smoke_test.py

@@ -67,8 +67,7 @@ def setUp(self):
 
         # Sweep command
         # limit jobs because ray.get() does not terminate if jobs > number of samples
-        core = os.cpu_count()
-        self.jobs = 4 if core >= 4 else core
+        self.jobs = 1
         self.sweep_command = (
             f"{self.exec}"
             f" --design {self.design}"