[Model] Jamba support

.buildkite/run-cpu-test.sh

@@ -23,4 +23,4 @@ docker exec cpu-test-avx2 bash -c "python3 examples/offline_inference.py"
 docker exec cpu-test bash -c "cd tests;
   pip install pytest Pillow protobuf
   cd ../
-  pytest -v -s tests/models -m \"not vlm\" --ignore=tests/models/test_embedding.py --ignore=tests/models/test_registry.py"
+  pytest -v -s tests/models -m \"not vlm\" --ignore=tests/models/test_embedding.py --ignore=tests/models/test_registry.py --ignore=tests/models/test_jamba.py" # Mamba on CPU is not supported

Dockerfile

@@ -43,6 +43,10 @@ COPY requirements-cuda.txt requirements-cuda.txt
 RUN --mount=type=cache,target=/root/.cache/pip \
     python3 -m pip install -r requirements-cuda.txt
 
+COPY requirements-mamba.txt requirements-mamba.txt
+RUN python3 -m pip install packaging
+RUN python3 -m pip install -r requirements-mamba.txt
+
 # cuda arch list used by torch
 # can be useful for both `dev` and `test`
 # explicitly set the list to avoid issues with torch 2.2
@@ -123,6 +127,21 @@ RUN --mount=type=cache,target=/root/.cache/pip \
     python3 -m pip install -r requirements-dev.txt
 
 #################### DEV IMAGE ####################
+#################### MAMBA Build IMAGE ####################
+FROM dev as mamba-builder
+# max jobs used for build
+ARG max_jobs=2
+ENV MAX_JOBS=${max_jobs}
+
+WORKDIR /usr/src/mamba
+
+COPY requirements-mamba.txt requirements-mamba.txt
+
+# Download the wheel or build it if a pre-compiled release doesn't exist
+RUN pip --verbose wheel -r requirements-mamba.txt \
+    --no-build-isolation --no-deps --no-cache-dir
+
+#################### MAMBA Build IMAGE ####################
 
 #################### vLLM installation IMAGE ####################
 # image with vLLM installed
@@ -143,6 +162,10 @@ RUN ldconfig /usr/local/cuda-$(echo $CUDA_VERSION | cut -d. -f1,2)/compat/
 RUN --mount=type=bind,from=build,src=/workspace/dist,target=/vllm-workspace/dist \
     --mount=type=cache,target=/root/.cache/pip \
     python3 -m pip install dist/*.whl --verbose
+
+RUN --mount=type=bind,from=mamba-builder,src=/usr/src/mamba,target=/usr/src/mamba \
+    --mount=type=cache,target=/root/.cache/pip \
+    python3 -m pip install /usr/src/mamba/*.whl --no-cache-dir
 #################### vLLM installation IMAGE ####################
 
 

docs/source/models/supported_models.rst

@@ -87,6 +87,10 @@ Alongside each architecture, we include some popular models that use it.
     - Jais
     - :code:`core42/jais-13b`, :code:`core42/jais-13b-chat`, :code:`core42/jais-30b-v3`, :code:`core42/jais-30b-chat-v3`, etc.
     -
+  * - :code:`JambaForCausalLM`
+    - Jamba
+    - :code:`ai21labs/Jamba-v0.1`, etc.
+    - ✅︎
   * - :code:`LlamaForCausalLM`
     - LLaMA, Llama 2, Meta Llama 3, Vicuna, Alpaca, Yi
     - :code:`meta-llama/Meta-Llama-3-8B-Instruct`, :code:`meta-llama/Meta-Llama-3-70B-Instruct`, :code:`meta-llama/Llama-2-13b-hf`, :code:`meta-llama/Llama-2-70b-hf`, :code:`openlm-research/open_llama_13b`, :code:`lmsys/vicuna-13b-v1.3`, :code:`01-ai/Yi-6B`, :code:`01-ai/Yi-34B`, etc.

requirements-mamba.txt

@@ -0,0 +1,3 @@
+# Mamba dependencies
+mamba-ssm>=1.2.2
+causal-conv1d>=1.2.0

tests/models/test_jamba.py

@@ -0,0 +1,65 @@
+import pytest
+
+MODELS = ["ai21labs/Jamba-tiny-random"]
+
+
+@pytest.mark.parametrize("model", MODELS)
+@pytest.mark.parametrize("dtype", ["float"])
+@pytest.mark.parametrize("max_tokens", [20])
+def test_models(
+    hf_runner,
+    vllm_runner,
+    example_prompts,
+    model: str,
+    dtype: str,
+    max_tokens: int,
+) -> None:
+    # To pass the small model tests, we need full precision.
+    assert dtype == "float"
+
+    with hf_runner(model, dtype=dtype) as hf_model:
+        hf_outputs = hf_model.generate_greedy(example_prompts, max_tokens)
+
+    with vllm_runner(model, dtype=dtype) as vllm_model:
+        vllm_outputs = vllm_model.generate_greedy(example_prompts, max_tokens)
+
+    for i in range(len(example_prompts)):
+        hf_output_ids, hf_output_str = hf_outputs[i]
+        vllm_output_ids, vllm_output_str = vllm_outputs[i]
+        assert hf_output_str == vllm_output_str, (
+            f"Test{i}:\nHF: {hf_output_str!r}\nvLLM: {vllm_output_str!r}")
+        assert hf_output_ids == vllm_output_ids, (
+            f"Test{i}:\nHF: {hf_output_ids}\nvLLM: {vllm_output_ids}")
+
+
+@pytest.mark.parametrize("model", MODELS)
+@pytest.mark.parametrize("dtype", ["float"])
+def test_state_cleanup(
+    vllm_runner,
+    model: str,
+    dtype: str,
+    example_prompts,
+) -> None:
+    # This test is for verifying that the Jamba state is cleaned up between
+    # steps, If its not cleaned, an error would be expected.
+    try:
+        with vllm_runner(model, dtype=dtype) as vllm_model:
+            for _ in range(10):
+                vllm_model.generate_greedy([example_prompts[0]] * 100, 1)
+    except ValueError:
+        pytest.fail("Jamba inner state wasn't cleaned up between states, "
+                    "could be related to finished_requests_ids")
+
+
+@pytest.mark.parametrize("model", MODELS)
+@pytest.mark.parametrize("dtype", ["float"])
+def test_model_print(
+    vllm_runner,
+    model: str,
+    dtype: str,
+) -> None:
+    with vllm_runner(model, dtype=dtype) as vllm_model:
+        # This test is for verifying whether the model's extra_repr
+        # can be printed correctly.
+        print(vllm_model.model.llm_engine.model_executor.driver_worker.
+              model_runner.model)

vllm/config.py

@@ -368,9 +368,36 @@ def get_num_attention_heads(self,
         return num_heads // parallel_config.tensor_parallel_size
 
     def get_num_layers(self, parallel_config: "ParallelConfig") -> int:
-        total_num_hidden_layers = self.hf_text_config.num_hidden_layers
+        total_num_hidden_layers = getattr(self.hf_text_config,
+                                          "num_hidden_layers", 0)
         return total_num_hidden_layers // parallel_config.pipeline_parallel_size
 
+    def contains_seqlen_agnostic_layers(
+            self, parallel_config: "ParallelConfig") -> bool:
+        """True for Mamba/SSM models (Jamba)"""
+        return self._get_num_seqlen_agnostic_layers(parallel_config) > 0
+
+    def get_layers_block_type(self,
+                              parallel_config: "ParallelConfig") -> List[str]:
+        num_layers = self.get_num_layers(parallel_config)
+        # Transformers supports layers_block_type @property
+        return getattr(self.hf_config, "layers_block_type",
+                       ["attention"] * num_layers)
+
+    def get_num_attention_layers(self,
+                                 parallel_config: "ParallelConfig") -> int:
+        return len([
+            t for t in self.get_layers_block_type(parallel_config)
+            if t == "attention"
+        ])
+
+    def _get_num_seqlen_agnostic_layers(
+            self, parallel_config: "ParallelConfig") -> int:
+        return len([
+            t for t in self.get_layers_block_type(parallel_config)
+            if t != "attention"
+        ])
+
 
 class CacheConfig:
     """Configuration for the KV cache.

vllm/core/scheduler.py

@@ -290,7 +290,10 @@ def __init__(
         # Sequence groups in the SWAPPED state.
         # Contain decode requests that are swapped out.
         self.swapped: Deque[SequenceGroup] = deque()
-
+        # Sequence groups finished requests ids since last step iteration.
+        # It lets the model know that any state associated with these requests
+        # can and must be released after the current step.
+        self._finished_requests_ids: List[str] = list()
         # Time at previous scheduling step
         self.prev_time = 0.0
         # Did we schedule a prompt at previous step?
@@ -364,6 +367,12 @@ def has_unfinished_seqs(self) -> bool:
     def get_num_unfinished_seq_groups(self) -> int:
         return len(self.waiting) + len(self.running) + len(self.swapped)
 
+    def get_and_reset_finished_requests_ids(self) -> List[str]:
+        """Flushes the list of request ids of previously finished seq_groups."""
+        finished_requests_ids = self._finished_requests_ids
+        self._finished_requests_ids = list()
+        return finished_requests_ids
+
     def _schedule_running(
         self,
         running_queue: deque,
@@ -1027,6 +1036,11 @@ def free_seq(self, seq: Sequence) -> None:
         self.block_manager.free(seq)
 
     def free_finished_seq_groups(self) -> None:
+        for queue in [self.running, self.swapped, self.waiting]:
+            self._finished_requests_ids += [
+                seq_group.request_id for seq_group in queue
+                if seq_group.is_finished()
+            ]
         self.running = deque(seq_group for seq_group in self.running
                              if not seq_group.is_finished())
 

vllm/engine/async_llm_engine.py

@@ -232,7 +232,8 @@ async def step_async(
                 blocks_to_copy=scheduler_outputs.blocks_to_copy,
                 num_lookahead_slots=scheduler_outputs.num_lookahead_slots,
                 running_queue_size=scheduler_outputs.running_queue_size,
-            )
+                finished_requests_ids=self.scheduler.
+                get_and_reset_finished_requests_ids())
             output = await self.model_executor.execute_model_async(
                 execute_model_req)
         else:

vllm/engine/llm_engine.py

@@ -822,7 +822,8 @@ def step(self) -> List[Union[RequestOutput, EmbeddingRequestOutput]]:
                 blocks_to_copy=scheduler_outputs.blocks_to_copy,
                 num_lookahead_slots=scheduler_outputs.num_lookahead_slots,
                 running_queue_size=scheduler_outputs.running_queue_size,
-            )
+                finished_requests_ids=self.scheduler.
+                get_and_reset_finished_requests_ids())
             output = self.model_executor.execute_model(
                 execute_model_req=execute_model_req)
         else:

vllm/model_executor/models/__init__.py

@@ -63,6 +63,7 @@
     "XverseForCausalLM": ("xverse", "XverseForCausalLM"),
     "Phi3SmallForCausalLM": ("phi3_small", "Phi3SmallForCausalLM"),
     "MLPSpeculatorPreTrainedModel": ("mlp_speculator", "MLPSpeculator"),
+    "JambaForCausalLM": ("jamba", "JambaForCausalLM")
 }
 
 _EMBEDDING_MODELS = {