Specify mesh_type when opening t3k device, update tt-metal commit

Signed-off-by: Salar Hosseini <skhorasgani@tenstorrent.com>

Author: skhorasganiTT

tt_metal/README.md

@@ -2,7 +2,7 @@
 ## vLLM and tt-metal Branches
 Git-checkout the following branches in each repo separately:
 - vLLM branch: [dev](https://github.com/tenstorrent/vllm/tree/dev) (last verified commit: [3f7beb2](https://github.com/tenstorrent/vllm/tree/3f7beb23cbaf3be2e104061905da5f91644e5a68))
-- tt-metal branch: [main](https://github.com/tenstorrent/tt-metal) (last verified commit: [0107040](https://github.com/tenstorrent/tt-metal/tree/01070409e582616d8962f371e8497abbf252bb81))
+- tt-metal branch: [main](https://github.com/tenstorrent/tt-metal) (last verified commit: [f521af0](https://github.com/tenstorrent/tt-metal/tree/f521af0061bf53567942b7a27fd89aa300ec16ce))
 
 ## Environment Creation
 

vllm/worker/tt_worker.py

@@ -376,6 +376,7 @@ def _open_t3k_mesh_device(self):
             ttnn.MeshShape(2, 4),
             dispatch_core_type=self._get_dispatch_core_type(),
             **device_params,
+            mesh_type=ttnn.MeshType.Ring,
         )
         logger.debug(f"multidevice with {mesh_device.get_num_devices()} devices is created")
         return mesh_device