Add Intel XPU device support to generate and serve

install/install_requirements.sh

@@ -74,16 +74,28 @@ then
 elif [[ -x "$(command -v rocminfo)" ]];
 then
   TORCH_NIGHTLY_URL="https://download.pytorch.org/whl/nightly/rocm6.2"
+elif [[ -x "$(command -v xpu-smi)" ]];
+then
+  TORCH_NIGHTLY_URL="https://download.pytorch.org/whl/nightly/xpu"
 else
   TORCH_NIGHTLY_URL="https://download.pytorch.org/whl/nightly/cpu"
 fi
 
 # pip packages needed by exir.
-REQUIREMENTS_TO_INSTALL=(
-  torch=="2.6.0.${PYTORCH_NIGHTLY_VERSION}"
-  torchvision=="0.22.0.${VISION_NIGHTLY_VERSION}"
-  torchtune=="0.5.0.${TUNE_NIGHTLY_VERSION}"
-)
+if [[ -x "$(command -v xpu-smi)" ]];
+then
+  REQUIREMENTS_TO_INSTALL=(
+    torch=="2.6.0.${PYTORCH_NIGHTLY_VERSION}"
+    torchvision=="0.22.0.${VISION_NIGHTLY_VERSION}"
+    torchtune=="0.4.0"
+  )
+else
+  REQUIREMENTS_TO_INSTALL=(
+    torch=="2.6.0.${PYTORCH_NIGHTLY_VERSION}"
+    torchvision=="0.22.0.${VISION_NIGHTLY_VERSION}"
+    torchtune=="0.5.0.${TUNE_NIGHTLY_VERSION}"
+  )
+fi
 
 #
 # First install requirements in install/requirements.txt. Older torch may be
@@ -116,8 +128,6 @@ if [[ -x "$(command -v nvidia-smi)" ]]; then
     $PYTHON_EXECUTABLE torchchat/utils/scripts/patch_triton.py
   )
 fi
-
-
 (
   set -x
   $PIP_EXECUTABLE install evaluate=="0.4.3" lm-eval=="0.4.2" psutil=="6.0.0"

torchchat/cli/builder.py

@@ -72,7 +72,12 @@ class BuilderArgs:
 
     def __post_init__(self):
         if self.device is None:
-            self.device = "cuda" if torch.cuda.is_available() else "cpu"
+            if torch.cuda.is_available():
+                self.device = "cuda"
+            elif torch.xpu.is_available():
+                self.device = "xpu"
+            else:
+                self.device = "cpu"
 
         if not (
             (self.checkpoint_path and self.checkpoint_path.is_file())

torchchat/cli/cli.py

@@ -176,8 +176,8 @@ def _add_model_config_args(parser, verb: str) -> None:
         "--device",
         type=str,
         default=None,
-        choices=["fast", "cpu", "cuda", "mps"],
-        help="Hardware device to use. Options: fast, cpu, cuda, mps",
+        choices=["fast", "cpu", "cuda", "mps", "xpu"],
+        help="Hardware device to use. Options: fast, cpu, cuda, mps, xpu",
     )
 
 

torchchat/generate.py

@@ -1203,8 +1203,10 @@ def callback(x, *, done_generating=False):
             if hasattr(prof, "export_chrome_trace"):
                 if self.builder_args.device == "cpu":
                     print(prof.key_averages().table(sort_by="self_cpu_time_total"))
-                else:
+                elif self.builder_args.device == "cuda":
                     print(prof.key_averages().table(sort_by="self_cuda_time_total"))
+                else:
+                    print(prof.key_averages().table(sort_by="self_xpu_time_total"))
                 prof.export_chrome_trace(f"{self.profile}.json")
 
             if start_pos >= max_seq_length:

torchchat/utils/build_utils.py

@@ -231,6 +231,8 @@ def find_multiple(n: int, k: int) -> int:
 def device_sync(device="cpu"):
     if "cuda" in device:
         torch.cuda.synchronize(device)
+    elif "xpu" in device:
+        torch.xpu.synchronize(device)
     elif ("cpu" in device) or ("mps" in device):
         pass
     else:
@@ -279,7 +281,8 @@ def get_device_str(device) -> str:
         device = (
             "cuda"
             if torch.cuda.is_available()
-            else "mps" if is_mps_available() else "cpu"
+            else "mps" if is_mps_available()
+            else "xpu" if torch.xpu.is_available()  else "cpu"
         )
         return device
     else:
@@ -291,7 +294,8 @@ def get_device(device) -> str:
         device = (
             "cuda"
             if torch.cuda.is_available()
-            else "mps" if is_mps_available() else "cpu"
+            else "mps" if is_mps_available()
+            else "xpu" if torch.xpu.is_available()  else "cpu"
         )
     return torch.device(device)
 

torchchat/utils/device_info.py

@@ -14,7 +14,7 @@ def get_device_info(device: str) -> str:
     """Returns a human-readable description of the hardware based on a torch.device.type
 
     Args:
-        device: A torch.device.type string: one of {"cpu", "cuda"}.
+        device: A torch.device.type string: one of {"cpu", "cuda", "xpu"}.
     Returns:
         str: A human-readable description of the hardware or an empty string if the device type is unhandled.
 
@@ -37,4 +37,13 @@ def get_device_info(device: str) -> str:
             )
     if device == "cuda":
         return torch.cuda.get_device_name(0)
+    if device == "xpu":
+        return (
+            check_output(
+                ["xpu-smi discovery |grep 'Device Name:'"], shell=True
+            )
+            .decode("utf-8")
+            .split("\n")[0]
+            .split("Device Name:")[1]
+            )
     return ""

torchchat/utils/quantize.py

@@ -111,7 +111,7 @@ def quantize_model(
             raise RuntimeError(f"unknown quantizer {quantizer} specified")
         else:
             # Use tensor subclass API for int4 weight only.
-            if device == "cuda" and quantizer == "linear:int4":
+            if (device == "cuda" or device == "xpu") and quantizer == "linear:int4":
                 quantize_(model, int4_weight_only(q_kwargs["groupsize"]))
                 if not support_tensor_subclass:
                     unwrap_tensor_subclass(model)