skip gather_gemv code check for B200 and fb_code

Author: Sibylau

test/test_examples.py

@@ -4,6 +4,7 @@
 
 from packaging import version
 import torch
+from torch._environment import is_fbcode
 
 import helion
 from helion._testing import DEVICE
@@ -1205,7 +1206,9 @@ def expected(w, idx, x):
             num_stages=1,
         )
 
-        if is_cuda():
+        gpu_name = torch.cuda.get_device_name(0)
+
+        if is_cuda() and not is_fbcode() and "b200" not in gpu_name.lower():
             self.assertExpectedJournal(code)
 
     def test_int4_gemm(self):