disagg.yaml

# SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
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#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
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Frontend:
  # This model was chosen for its 70B size and FP8 precision, which the TP and
  # DP configurations were tuned for its size, and its precision reduces model
  # and KV cache memory usage and easing remote cache transfer.
  served_model_name: neuralmagic/DeepSeek-R1-Distill-Llama-70B-FP8-dynamic
  endpoint: dynamo.Processor.chat/completions
  port: 8000

Processor:
  model: neuralmagic/DeepSeek-R1-Distill-Llama-70B-FP8-dynamic
  router: round-robin

# x1 process with 4 GPUs generating output tokens (the "decode" phase).
VllmWorker:
  model: neuralmagic/DeepSeek-R1-Distill-Llama-70B-FP8-dynamic
  kv-transfer-config: '{"kv_connector":"DynamoNixlConnector"}'
  # Number of tokens in a batch for more efficient chunked transfers to GPUs.
  block-size: 128
  max-model-len: 3500
  # Enable KV cache passing from prefill to decode workers
  remote-prefill: true
  tensor-parallel-size: 4
  gpu-memory-utilization: 0.95
  disable-log-requests: true
  ServiceArgs:
    workers: 1
    resources:
      gpu: 4

# x4 processes each with 1 GPU handling the initial prefill (context embedding) phase.
PrefillWorker:
  model: neuralmagic/DeepSeek-R1-Distill-Llama-70B-FP8-dynamic
  kv-transfer-config: '{"kv_connector":"DynamoNixlConnector"}'
  block-size: 128
  max-model-len: 3500
  max-num-batched-tokens: 3500
  tensor-parallel-size: 1
  gpu-memory-utilization: 0.95
  disable-log-requests: true
  ServiceArgs:
    workers: 4
    resources:
      gpu: 1

# Note: No prefix cache is used, since all requests are expected to be unique.