汇集闲置GPU资源,以更大规模运行LLM。
Pool spare GPU capacity to run LLMs at larger scale

原始链接: https://github.com/michaelneale/mesh-llm

## Mesh-LLM:分布式LLM推理 Mesh-LLM 通过汇集多台机器的GPU资源,实现大规模语言模型(LLM)的运行。它自动分配模型——对密集模型使用流水线并行,对混合专家(MoE)模型使用专家分片——并且MoE模型实现零跨节点推理流量。 用户可以轻松加入现有的公共网络或创建自己的私有网络,从而获得一个兼容OpenAI API的接口,地址为`localhost:9337`。在macOS Apple Silicon上安装非常简单。系统会根据需求动态平衡模型服务,提升备用节点并根据需要进行重新平衡。 主要特性包括一个共享的“黑板”,用于代理和用户之间的协作知识共享,以及推测解码以提高吞吐量和高效的模型加载。它同时支持多个模型,并通过HTTP流优先考虑低延迟通信。Mesh-LLM 专为本地使用和广域网络设计,为LLM推理提供了一种灵活强大的解决方案。

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原文

Mesh LLM logo

Mesh LLM

Pool spare GPU capacity to run LLMs at larger scale. Models that don't fit on one machine are automatically distributed — dense models via pipeline parallelism, MoE models via expert sharding with zero cross-node inference traffic. Have your agents gossip across the mesh — share status, findings, and questions without a central server.

Try it now — live console connected to a public mesh. Chat with models running on real hardware.

Install (macOS Apple Silicon)

curl -fsSL https://github.com/michaelneale/mesh-llm/releases/latest/download/mesh-bundle.tar.gz | tar xz && mv mesh-bundle/* ~/.local/bin/

Then run:

mesh-llm --auto                            # join the best public mesh, start serving

That's it. Downloads a model for your hardware, connects to other nodes, and gives you an OpenAI-compatible API at http://localhost:9337.

Or start your own:

mesh-llm --model Qwen2.5-32B              # downloads model (~20GB), starts API + web console
mesh-llm --model Qwen2.5-3B               # or a small model first (~2GB)

Add another machine:

mesh-llm --join <token>                    # token printed by the first machine

Or discover and join public meshes:

mesh-llm --auto                            # find and join the best mesh
mesh-llm --client --auto                   # join as API-only client (no GPU)

Every node gets an OpenAI-compatible API at http://localhost:9337/v1. Distribution is automatic — you just say mesh-llm --model X and the mesh figures out the best strategy:

  • Model fits on one machine? → runs solo, full speed, no network overhead
  • Dense model too big? → pipeline parallelism — layers split across nodes
  • MoE model too big? → expert parallelism — experts split across nodes, zero cross-node traffic

If a node has enough VRAM, it always runs the full model. Splitting only happens when it has to.

Pipeline parallelism — for dense models that don't fit on one machine, layers are distributed across nodes proportional to VRAM. llama-server runs on the highest-VRAM node and coordinates via RPC. Each rpc-server loads only its assigned layers from local disk. Latency-aware: peers are selected by lowest RTT first, with an 80ms hard cap — high-latency nodes stay in the mesh as API clients but don't participate in splits.

MoE expert parallelism — Mixture-of-Experts models (Qwen3-MoE, GLM, OLMoE, Mixtral, DeepSeek — increasingly the best-performing architectures) are auto-detected from the GGUF header. The mesh reads expert routing statistics to identify which experts matter most, then assigns each node an overlapping shard: a shared core of critical experts replicated everywhere, plus unique experts distributed across nodes. Each node gets a standalone GGUF with the full trunk + its expert subset and runs its own independent llama-server — zero cross-node traffic during inference. Sessions are hash-routed to nodes for KV cache locality.

Multi-model — different nodes serve different models simultaneously. The API proxy peeks at the model field in each request and routes to the right node via QUIC tunnel. /v1/models lists everything available.

Demand-aware rebalancing — a unified demand map tracks which models the mesh wants (from --model flags, API requests, and gossip). Demand signals propagate infectiously across all nodes and decay naturally via TTL. Standby nodes auto-promote to serve unserved models with active demand, or rebalance when one model is significantly hotter than others. When a model loses its last server, standby nodes detect it within ~60s.

Latency design — the key insight is that HTTP streaming is latency-tolerant while RPC is latency-multiplied. llama-server always runs on the same box as the GPU. The mesh tunnels HTTP, so cross-network latency only affects time-to-first-token, not per-token throughput. RPC only crosses the network for pipeline splits where the model physically doesn't fit on one machine.

  • Zero-transfer GGUF loadingSET_TENSOR_GGUF tells rpc-server to read weights from local disk. Dropped model load from 111s → 5s.
  • RPC round-trip reduction — cached get_alloc_size, skip GGUF lookups for intermediates. Per-token round-trips: 558 → 8.
  • Direct server-to-server transfers — intermediate tensors pushed directly between rpc-servers via TCP, not relayed through the client.
  • Speculative decoding — draft model runs locally on the host, proposes tokens verified in one batched forward pass. +38% throughput on code (75% acceptance).
mesh-llm --model Qwen2.5-32B

Starts serving a model and prints an invite token. This mesh is private — only people you share the token with can join.

To make it public (discoverable by others via --auto):

mesh-llm --model Qwen2.5-32B --publish
mesh-llm --join <token>                    # join with invite token (GPU node)
mesh-llm --client --join <token>           # join as API-only client (no GPU)
mesh-llm --auto --model GLM-4.7-Flash-Q4_K_M --mesh-name "poker-night"

Everyone runs the same command. First person creates it, everyone else discovers "poker-night" and joins automatically. --mesh-name implies --publish — named meshes are always published to the directory.

mesh-llm --auto                            # discover, join, and serve a model
mesh-llm --client --auto                   # join as API-only client (no GPU)
mesh-llm discover                          # browse available meshes
mesh-llm --model Qwen2.5-32B --model GLM-4.7-Flash

# Route by model name
curl localhost:9337/v1/chat/completions -d '{"model":"GLM-4.7-Flash-Q4_K_M", ...}'

Different nodes serve different models. The API proxy routes by the model field.

mesh-llm                                   # no args — shows instructions + console

Opens a read-only console on :3131. Use the CLI to start or join a mesh.

mesh-llm --model Qwen2.5-32B    # dashboard at http://localhost:3131

Live topology, VRAM bars per node, model picker, built-in chat. Everything comes from /api/status (JSON) and /api/events (SSE).

Build-from-source and UI development instructions are in CONTRIBUTING.md.

mesh-llm exposes an OpenAI-compatible API on localhost:9337. Any tool that supports custom OpenAI endpoints works. /v1/models lists available models; the model field in requests routes to the right node.

For built-in launcher integrations (goose, claude):

  • If a mesh is already running locally on --port, it is reused.
  • If not, mesh-llm auto-starts a background client node that auto-joins the mesh.
  • If --model is omitted, the launcher picks the strongest tool-capable model available on the mesh.
  • When the harness exits (e.g. claude quits), the auto-started node is cleaned up automatically.

Goose is available as both CLI (goose session) and desktop app (Goose.app).

Use a specific model (example: MiniMax):

mesh-llm goose --model MiniMax-M2.5-Q4_K_M

This command writes/updates ~/.config/goose/custom_providers/mesh.json and launches Goose.

  1. Start a mesh client:
mesh-llm --client --auto --port 9337
  1. Check what models are available:
curl -s http://localhost:9337/v1/models | jq '.data[].id'
  1. Add a mesh provider to ~/.pi/agent/models.json (adjust model IDs to match your mesh):
{
  "providers": {
    "mesh": {
      "api": "openai-completions",
      "apiKey": "mesh",
      "baseUrl": "http://localhost:9337/v1",
      "models": [
        {
          "id": "MiniMax-M2.5-Q4_K_M",
          "name": "MiniMax M2.5 (Mesh)",
          "contextWindow": 65536,
          "maxTokens": 8192,
          "reasoning": true,
          "input": ["text"],
          "compat": {
            "maxTokensField": "max_tokens",
            "supportsDeveloperRole": false,
            "supportsUsageInStreaming": false
          }
        }
      ]
    }
  }
}
  1. Run pi:
pi --model mesh/MiniMax-M2.5-Q4_K_M

Or switch models interactively with Ctrl+M inside pi.

OPENAI_API_KEY=dummy OPENAI_BASE_URL=http://localhost:9337/v1 opencode -m openai/GLM-4.7-Flash-Q4_K_M

Claude Code can be launched directly through mesh-llm (no proxy required):

Use a specific model (example: MiniMax):

mesh-llm claude --model MiniMax-M2.5-Q4_K_M
curl http://localhost:9337/v1/chat/completions \
  -H "Content-Type: application/json" \
  -d '{"model":"GLM-4.7-Flash-Q4_K_M","messages":[{"role":"user","content":"hello"}]}'

The mesh doesn't just share compute — it shares knowledge. Agents and people post status updates, findings, and questions to a shared blackboard that propagates across the mesh.

Works standalone — you don't need to run models through the mesh. Using your own API keys or a cloud provider? Just run mesh-llm --client --blackboard to give your agents a gossip layer. No GPU needed, no model needed.

# Enable on any node (with or without a model)
mesh-llm --client --blackboard

# Install the agent skill (works with pi, Goose, others)
mesh-llm blackboard install-skill

# Post what you're working on
mesh-llm blackboard "STATUS: [org/repo branch:main] refactoring billing module"

# Search the blackboard
mesh-llm blackboard --search "billing refactor"

# Check for unanswered questions
mesh-llm blackboard --search "QUESTION"

With the skill installed, agents proactively search before starting work, post their status, share findings, and answer each other's questions — all through the mesh.

Messages are ephemeral (48h), PII is auto-scrubbed, and everything stays within the mesh — no cloud, no external services.

The blackboard is available as an MCP server for agent integration. Any MCP-compatible agent (pi, Claude Code, Goose, etc.) can post, search, and read the feed directly:

# Run as MCP server over stdio
mesh-llm blackboard --mcp

Configure in your agent's MCP settings:

{
  "mcpServers": {
    "mesh-blackboard": {
      "command": "mesh-llm",
      "args": ["blackboard", "--mcp"]
    }
  }
}

Tools exposed: blackboard_post, blackboard_search, blackboard_feed.

GLM-4.7-Flash-Q4_K_M (17GB), M4 Max + Mac Mini M4, WiFi:

Configuration tok/s
Solo (no mesh) 68
2-node split (85/15) 21
3-node split (62/31/8) 12-13

Cross-network (Sydney ↔ Queensland, ~20ms RTT): 10-25 tok/s. Overhead dominated by per-token RPC latency.

Stock llama.cpp RPC transfers 16.88GB on connect. This fork: 0 bytes, ~9 seconds.

mesh-llm download           # list models
mesh-llm download 32b       # Qwen2.5-32B (~20GB)
mesh-llm download 72b --draft  # Qwen2.5-72B + draft model

Draft pairings for speculative decoding:

Model Size Draft Draft size
Qwen2.5 (3B/7B/14B/32B/72B) 2-47GB Qwen2.5-0.5B 491MB
Qwen3-32B 20GB Qwen3-0.6B 397MB
Llama-3.3-70B 43GB Llama-3.2-1B 760MB
Gemma-3-27B 17GB Gemma-3-1B 780MB

--model accepts several formats. Models are auto-downloaded to ~/.models/ on first use.

# Catalog name (fuzzy match — finds Qwen3-8B-Q4_K_M)
mesh-llm --model Qwen3-8B

# Full catalog name
mesh-llm --model Qwen3-8B-Q4_K_M

# HuggingFace URL (any GGUF)
mesh-llm --model https://huggingface.co/bartowski/Llama-3.2-3B-Instruct-GGUF/resolve/main/Llama-3.2-3B-Instruct-Q4_K_M.gguf

# HuggingFace shorthand (org/repo/file.gguf)
mesh-llm --model bartowski/Llama-3.2-3B-Instruct-GGUF/Llama-3.2-3B-Instruct-Q4_K_M.gguf

# Local file path
mesh-llm --model ~/my-models/custom-model.gguf

Catalog models are downloaded with resume support — if a download is interrupted, it picks up where it left off. Use mesh-llm download to browse the catalog.

mesh-llm [OPTIONS]
  --model NAME|PATH|URL  Model to serve (can specify multiple)
  --join TOKEN         Join mesh via invite token
  --auto               Discover and join via directory
  --client             API-only client (no GPU)
  --blackboard         Enable the blackboard (works on any node)
  --name NAME          Display name on the blackboard (default: $USER)
  --mesh-name NAME     Name the mesh (implies --publish)
  --publish            Publish mesh to directory
  --region REGION      Geographic region tag (AU, US-West, EU-West, ...)
  --max-clients N      Delist when N clients connected
  --port PORT          API port (default: 9337)
  --console PORT       Console port (default: 3131)
  --bind-port PORT     Pin QUIC to fixed UDP port (for NAT)
  --listen-all         Bind to 0.0.0.0 (for containers)
  --max-vram GB        Cap VRAM advertised to mesh
  --split              Force pipeline split (dense) or MoE expert split
  --device DEV         GPU device (default: MTL0)
  --draft PATH         Draft model for speculative decoding
  --no-draft           Disable auto draft detection

mesh-llm download [NAME] [--draft]
mesh-llm discover [--model M] [--region R] [--auto]
mesh-llm drop <model>
mesh-llm rotate-key
mesh-llm blackboard [TEXT] [--search Q] [--from NAME] [--since HOURS]
mesh-llm blackboard --mcp           Run as MCP server (stdio) for agents
mesh-llm blackboard install-skill
just bundle                                    # creates /tmp/mesh-bundle.tar.gz
scp /tmp/mesh-bundle.tar.gz user@remote:
ssh user@remote 'tar xzf mesh-bundle.tar.gz && mesh-bundle/mesh-llm --model Qwen2.5-3B'

Same architecture required (arm64 macOS → arm64 macOS). Bundle includes mesh-llm + llama.cpp binaries. For WAN: forward --bind-port UDP on the router — only the originator needs it.

See CONTRIBUTING.md for build and development workflows.

Path Purpose
llama.cpp/ Fork with zero-transfer RPC patches
mesh-llm/ Rust QUIC mesh (internals)
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