Add link to issue for deepspeed_evo_attention test.

tests/test_deepspeed_evo_attention.py

@@ -315,6 +315,8 @@ class TestDeepSpeedKernel(unittest.TestCase):
         # Move the recycling dimension to the end
         move_dim = lambda t: t.permute(*range(len(t.shape))[1:], 0)
         batch = tensor_tree_map(move_dim, batch)
+        # Restrict this test to use only torch.float32 precision due to instability with torch.bfloat16
+        # https://github.com/aqlaboratory/openfold/issues/532
         with torch.no_grad(), torch.cuda.amp.autocast(dtype=torch.float32):
                 model = compare_utils.get_global_pretrained_openfold()
                 model.globals.use_deepspeed_evo_attention = False