Add multi-lora support for Triton vLLM backend (#23)

Co-authored-by: Olga Andreeva <124622579+oandreeva-nv@users.noreply.github.com>

Author: l1cacheDell

ci/L0_backend_vllm/multi_lora/download.py

@@ -0,0 +1,47 @@
+# Copyright 2024, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#  * Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#  * Neither the name of NVIDIA CORPORATION nor the names of its
+#    contributors may be used to endorse or promote products derived
+#    from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+# OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+from huggingface_hub import snapshot_download
+
+if __name__ == "__main__":
+    # download lora weight alpaca
+    snapshot_download(
+        repo_id="swathijn/GemmaDoll-2b-dolly-LORA-Tune",
+        local_dir="./weights/loras/GemmaDoll",
+        max_workers=8,
+    )
+    # download lora weight GemmaSheep
+    snapshot_download(
+        repo_id="eduardo-alvarez/GemmaSheep-2B-LORA-TUNED",
+        local_dir="./weights/loras/GemmaSheep",
+        max_workers=8,
+    )
+    # download backbone weight google/gemma-2b
+    snapshot_download(
+        repo_id="unsloth/gemma-2b",
+        local_dir="./weights/backbone/gemma-2b",
+        max_workers=8,
+    )

ci/L0_backend_vllm/multi_lora/multi_lora_test.py

@@ -0,0 +1,181 @@
+# Copyright 2024, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#  * Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#  * Neither the name of NVIDIA CORPORATION nor the names of its
+#    contributors may be used to endorse or promote products derived
+#    from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+# OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import os
+import sys
+import unittest
+from functools import partial
+from typing import List
+
+import tritonclient.grpc as grpcclient
+from tritonclient.utils import *
+
+sys.path.append("../../common")
+from test_util import AsyncTestResultCollector, UserData, callback, create_vllm_request
+
+PROMPTS = ["Instruct: What do you think of Computer Science?\nOutput:"]
+SAMPLING_PARAMETERS = {"temperature": "0", "top_p": "1"}
+
+server_enable_lora = True
+
+
+class VLLMTritonLoraTest(AsyncTestResultCollector):
+    def setUp(self):
+        self.triton_client = grpcclient.InferenceServerClient(url="localhost:8001")
+        self.vllm_model_name = "vllm_llama_multi_lora"
+
+    def _test_vllm_model(
+        self,
+        prompts: List[str],
+        sampling_parameters,
+        lora_name: List[str],
+        server_enable_lora=True,
+        stream=False,
+        exclude_input_in_output=None,
+        expected_output=None,
+    ):
+        assert len(prompts) == len(
+            lora_name
+        ), "The number of prompts and lora names should be the same"
+        user_data = UserData()
+        number_of_vllm_reqs = len(prompts)
+
+        self.triton_client.start_stream(callback=partial(callback, user_data))
+        for i in range(number_of_vllm_reqs):
+            lora = lora_name[i] if lora_name else None
+            sam_para_copy = sampling_parameters.copy()
+            if lora is not None:
+                sam_para_copy["lora_name"] = lora
+            request_data = create_vllm_request(
+                prompts[i],
+                i,
+                stream,
+                sam_para_copy,
+                self.vllm_model_name,
+                exclude_input_in_output=exclude_input_in_output,
+            )
+            self.triton_client.async_stream_infer(
+                model_name=self.vllm_model_name,
+                request_id=request_data["request_id"],
+                inputs=request_data["inputs"],
+                outputs=request_data["outputs"],
+                parameters=sampling_parameters,
+            )
+
+        for i in range(number_of_vllm_reqs):
+            result = user_data._completed_requests.get()
+            if type(result) is InferenceServerException:
+                print(result.message())
+                if server_enable_lora:
+                    self.assertEqual(
+                        str(result.message()),
+                        f"LoRA {lora_name[i]} is not supported, we currently support ['doll', 'sheep']",
+                        "InferenceServerException",
+                    )
+                else:
+                    self.assertEqual(
+                        str(result.message()),
+                        "LoRA feature is not enabled.",
+                        "InferenceServerException",
+                    )
+                self.triton_client.stop_stream()
+                return
+
+            output = result.as_numpy("text_output")
+            self.assertIsNotNone(output, "`text_output` should not be None")
+            if expected_output is not None:
+                self.assertEqual(
+                    output,
+                    expected_output[i],
+                    'Actual and expected outputs do not match.\n \
+                                  Expected "{}" \n Actual:"{}"'.format(
+                        output, expected_output[i]
+                    ),
+                )
+
+        self.triton_client.stop_stream()
+
+    def test_multi_lora_requests(self):
+        self.triton_client.load_model(self.vllm_model_name)
+        sampling_parameters = {"temperature": "0", "top_p": "1"}
+        # make two requests separately to avoid the different arrival of response answers
+        prompt_1 = ["Instruct: What do you think of Computer Science?\nOutput:"]
+        lora_1 = ["doll"]
+        expected_output = [
+            b" I think it is a very interesting subject.\n\nInstruct: What do you"
+        ]
+        self._test_vllm_model(
+            prompt_1,
+            sampling_parameters,
+            lora_name=lora_1,
+            server_enable_lora=server_enable_lora,
+            stream=False,
+            exclude_input_in_output=True,
+            expected_output=expected_output,
+        )
+
+        prompt_2 = ["Instruct: Tell me more about soccer\nOutput:"]
+        lora_2 = ["sheep"]
+        expected_output = [
+            b" I love soccer. I play soccer every day.\nInstruct: Tell me"
+        ]
+        self._test_vllm_model(
+            prompt_2,
+            sampling_parameters,
+            lora_name=lora_2,
+            server_enable_lora=server_enable_lora,
+            stream=False,
+            exclude_input_in_output=True,
+            expected_output=expected_output,
+        )
+        self.triton_client.unload_model(self.vllm_model_name)
+
+    def test_none_exist_lora(self):
+        self.triton_client.load_model(self.vllm_model_name)
+        prompts = [
+            "Instruct: What is the capital city of France?\nOutput:",
+        ]
+        loras = ["bactrian"]
+        sampling_parameters = {"temperature": "0", "top_p": "1"}
+        self._test_vllm_model(
+            prompts,
+            sampling_parameters,
+            lora_name=loras,
+            server_enable_lora=server_enable_lora,
+            stream=False,
+            exclude_input_in_output=True,
+            expected_output=None,  # this request will lead to lora not supported error, so there is no expected output
+        )
+        self.triton_client.unload_model(self.vllm_model_name)
+
+    def tearDown(self):
+        self.triton_client.close()
+
+
+if __name__ == "__main__":
+    server_enable_lora = os.environ.get("SERVER_ENABLE_LORA", "false").lower() == "true"
+
+    unittest.main()