Revert test_moe_deepseek_pipeline_subset to original mesh

Author: gagika

tests/unit/train_compile_test.py

@@ -626,8 +626,8 @@ def test_moe_deepseek_pipeline_subset(self):
             "",
             get_test_config_path(),
             f"compiled_trainstep_file={compiled_trainstep_file}",
-            "compile_topology=v5p-8",
-            "compile_topology_num_slices=2",
+            "compile_topology=v5p-64",
+            "compile_topology_num_slices=8",
             "use_iota_embed=true",
             "model_name=deepseek3-test",
             "megablox=True",
@@ -636,8 +636,8 @@ def test_moe_deepseek_pipeline_subset(self):
             "per_device_batch_size=1",
             "max_target_length=1024",
             "pipeline_parallel_layers=56",
-            "ici_expert_parallelism=8",
-            "dcn_pipeline_parallelism=2",
+            "ici_expert_parallelism=16",
+            "dcn_pipeline_parallelism=8",
         )
     )