This commit is contained in:
Dobromir Popov
2026-07-07 17:37:38 +03:00
parent 640ef78711
commit e81d989f39
12 changed files with 1392 additions and 358 deletions

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@@ -75,7 +75,7 @@ What exists already (build on it, don't duplicate):
- [x] Node downloader keeps exact-shard peers first, then races tracker model
sources against a HuggingFace `snapshot_download(..., allow_patterns=...)`
subset download, using the first successful source.
- [ ] When no tracker model source is available at all, the HuggingFace
- [x] When no tracker model source is available at all, the HuggingFace
fallback still computes `allow_patterns` from the repo's own
`model.safetensors.index.json` (fetched directly, not via the tracker) —
it never silently downloads the full model just because the tracker has
@@ -95,7 +95,9 @@ What exists already (build on it, don't duplicate):
- 2026-07-06: Added the tracker/node download path. For immediate Qwen3.6-35B
LAN testing, real PyTorch nodes fetch the full snapshot from the tracker via
`full_url` and race HuggingFace as fallback. Remaining hard half is true
partial model materialization: the backend can prefer a downloaded local
model directory, but Transformers still needs a `meta`-device load path that
materializes only assigned layers.
`full_url`; HuggingFace remains fallback-only, and when it is used the node
computes `allow_patterns` from the repo's remote SafeTensors index so it
stays layer-filtered even without tracker-cached files. Remaining hard half
is true partial model materialization: the backend can prefer a downloaded
local model directory, but Transformers still needs a `meta`-device load
path that materializes only assigned layers.

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@@ -1,4 +1,4 @@
"""Shard downloader — fetches model shards from peers or HuggingFace Hub.
"""Shard downloader — fetches model files from peers, tracker sources, or HuggingFace.
Cache layout: ~/.cache/meshnet/shards/<model>/

View File

@@ -4,6 +4,7 @@ from __future__ import annotations
import base64
from dataclasses import dataclass
import json
from pathlib import Path
from typing import Any, Literal
@@ -22,6 +23,10 @@ class InsufficientVRAMError(ModelBackendError):
"""Raised when a requested shard cannot fit in available CUDA memory."""
class PartialModelLoadUnsupported(ModelBackendError):
"""Raised when a shard cannot be materialized from a local snapshot subset."""
@dataclass(frozen=True)
class TensorPayload:
body: bytes
@@ -94,6 +99,25 @@ class TorchModelShard:
None if load_source != model_id else cache_dir,
)
try:
total_layers_hint = _total_layers_for_local_snapshot(AutoConfig, load_source)
if _should_partial_materialize_shard(
load_source,
shard_start,
shard_end,
total_layers_hint=total_layers_hint,
uses_quantized_weights=uses_quantized_weights,
):
self.model = _load_partial_model_from_snapshot(
AutoConfig,
AutoModelForCausalLM,
torch,
load_source,
shard_start,
shard_end,
dtype,
self.device,
)
else:
load_kwargs = {
"device_map": "auto" if uses_quantized_weights else None,
"dtype": dtype,
@@ -357,6 +381,135 @@ def load_torch_shard(
return TorchModelShard(model_id, shard_start, shard_end, quantization, cache_dir)
def _total_layers_for_local_snapshot(auto_config: Any, load_source: str) -> int | None:
snapshot_dir = Path(load_source)
if not (snapshot_dir / "config.json").exists():
return None
from .model_catalog import layers_from_config
try:
cfg = auto_config.from_pretrained(str(snapshot_dir))
except Exception:
return None
return layers_from_config(cfg)
def _should_partial_materialize_shard(
load_source: str,
shard_start: int,
shard_end: int,
*,
total_layers_hint: int | None,
uses_quantized_weights: bool,
) -> bool:
if uses_quantized_weights:
return False
snapshot_dir = Path(load_source)
if not snapshot_dir.exists() or not (snapshot_dir / "config.json").exists():
return False
if not (snapshot_dir / "model.safetensors.index.json").exists():
return False
if total_layers_hint is None:
return False
return not (shard_start == 0 and shard_end >= total_layers_hint - 1)
def _load_partial_model_from_snapshot(
auto_config: Any,
auto_model_for_causal_lm: Any,
torch: Any,
load_source: str,
shard_start: int,
shard_end: int,
dtype: Any,
device: Any,
*,
init_empty_weights_fn: Any | None = None,
set_tensor_fn: Any | None = None,
safe_open_fn: Any | None = None,
) -> Any:
from .model_catalog import layers_from_config
from .safetensors_selection import (
INDEX_FILENAME,
select_tensor_names_for_layers_from_index,
)
if init_empty_weights_fn is None:
from accelerate import init_empty_weights as init_empty_weights_fn
if set_tensor_fn is None:
from accelerate.utils import set_module_tensor_to_device as set_tensor_fn
if safe_open_fn is None:
from safetensors import safe_open as safe_open_fn
snapshot_dir = Path(load_source)
cfg = auto_config.from_pretrained(str(snapshot_dir))
total_layers = layers_from_config(cfg)
if total_layers is None:
raise PartialModelLoadUnsupported(
f"could not determine num_hidden_layers for local snapshot {snapshot_dir}"
)
if shard_end >= total_layers:
raise ValueError(
f"shard_end {shard_end} exceeds last layer index {total_layers - 1}"
)
index_path = snapshot_dir / INDEX_FILENAME
try:
index = json.loads(index_path.read_text(encoding="utf-8"))
except FileNotFoundError as exc:
raise PartialModelLoadUnsupported(
f"missing SafeTensors index for partial load: {index_path}"
) from exc
weight_map = index.get("weight_map")
if not isinstance(weight_map, dict):
raise PartialModelLoadUnsupported(f"{INDEX_FILENAME} must contain a weight_map object")
tensor_names = select_tensor_names_for_layers_from_index(
weight_map,
shard_start,
shard_end,
total_layers=total_layers,
)
if not tensor_names:
raise PartialModelLoadUnsupported(
f"no checkpoint tensors matched layers {shard_start}-{shard_end} in {snapshot_dir}"
)
with init_empty_weights_fn():
model = auto_model_for_causal_lm.from_config(cfg, torch_dtype=dtype)
tie_weights = getattr(model, "tie_weights", None)
if callable(tie_weights):
tie_weights()
tensors_by_file: dict[str, list[str]] = {}
for tensor_name in sorted(tensor_names):
rel_file = weight_map.get(tensor_name)
if not isinstance(rel_file, str):
continue
tensors_by_file.setdefault(rel_file, []).append(tensor_name)
for rel_file, names in tensors_by_file.items():
checkpoint_file = snapshot_dir / rel_file
if not checkpoint_file.exists():
raise PartialModelLoadUnsupported(
f"checkpoint file advertised in {INDEX_FILENAME} is missing: {checkpoint_file}"
)
with safe_open_fn(str(checkpoint_file), framework="pt", device="cpu") as handle:
for tensor_name in names:
set_tensor_fn(
model,
tensor_name,
device,
value=handle.get_tensor(tensor_name),
dtype=dtype,
)
for module in _active_modules_for_shard(model, shard_start, shard_end):
if hasattr(module, "to"):
module.to(device)
return model
def _model_load_plan(
auto_config: Any,
model_id: str,
@@ -442,6 +595,37 @@ def _position_embeddings(model: Any) -> Any | None:
return None
def _rotary_embedding_module(model: Any) -> Any | None:
if hasattr(model, "model") and hasattr(model.model, "rotary_emb"):
return model.model.rotary_emb
if hasattr(model, "transformer") and hasattr(model.transformer, "rotary_emb"):
return model.transformer.rotary_emb
return None
def _active_modules_for_shard(model: Any, shard_start: int, shard_end: int) -> list[Any]:
active: list[Any] = []
def add(module: Any | None) -> None:
if module is None:
return
if any(existing is module for existing in active):
return
active.append(module)
if shard_start == 0:
add(_embed_tokens(model))
add(_position_embeddings(model))
add(_rotary_embedding_module(model))
for layer in _model_layers(model)[shard_start:shard_end + 1]:
add(layer)
total_layers = len(_model_layers(model))
if shard_end >= total_layers - 1:
add(_final_norm(model))
add(getattr(model, "lm_head", None))
return active
def _final_norm(model: Any) -> Any | None:
if hasattr(model, "model") and hasattr(model.model, "norm"):
return model.model.norm
@@ -485,11 +669,7 @@ def _rotary_position_embeddings(model: Any, hidden_states: Any, position_ids: An
"""Return model-level rotary embeddings required by newer HF decoder layers."""
if position_ids is None:
return None
rotary = None
if hasattr(model, "model") and hasattr(model.model, "rotary_emb"):
rotary = model.model.rotary_emb
elif hasattr(model, "transformer") and hasattr(model.transformer, "rotary_emb"):
rotary = model.transformer.rotary_emb
rotary = _rotary_embedding_module(model)
if rotary is None:
return None
return rotary(hidden_states, position_ids)

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@@ -118,6 +118,23 @@ def select_files_for_layers_from_index(
return selected
def select_tensor_names_for_layers_from_index(
weight_map: dict[str, str],
start_layer: int,
end_layer: int,
*,
total_layers: int | None = None,
) -> set[str]:
"""Pure variant that returns checkpoint tensor names instead of file paths."""
selected: set[str] = set()
for tensor_name, rel_file in weight_map.items():
if not isinstance(tensor_name, str) or not isinstance(rel_file, str):
continue
if _tensor_belongs_to_range(tensor_name, start_layer, end_layer, total_layers):
selected.add(tensor_name)
return selected
def _tensor_belongs_to_range(
tensor_name: str,
start_layer: int,

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@@ -453,13 +453,13 @@ class BillingLedger:
with self._lock:
return self._node_pending.get(wallet, 0.0)
def usage_for(self, api_keys: list[str], *, recent_limit: int = 20) -> dict:
def usage_for(self, api_keys: list[str], *, recent_limit: int | None = None) -> dict:
"""Aggregate charge history for a set of API keys (dashboard view)."""
keys = set(api_keys)
requests = 0
total_tokens = 0
total_cost = 0.0
recent: list[dict] = []
records: list[dict] = []
with self._lock:
for event in self._event_log:
if event.get("type") != "charge" or event.get("api_key") not in keys:
@@ -467,18 +467,20 @@ class BillingLedger:
requests += 1
total_tokens += int(event.get("total_tokens", 0))
total_cost += float(event.get("cost", 0.0))
recent.append({
records.append({
"api_key": event["api_key"],
"model": event.get("model"),
"total_tokens": event.get("total_tokens", 0),
"cost": event.get("cost", 0.0),
"ts": event.get("ts", 0.0),
})
recent = records[-recent_limit:] if recent_limit is not None else records
return {
"requests": requests,
"total_tokens": total_tokens,
"total_cost": total_cost,
"recent": recent[-recent_limit:],
"records": records,
"recent": recent,
}
def snapshot(self) -> dict:

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@@ -39,12 +39,41 @@
.form-row { display:flex; gap:8px; }
.form-row button { white-space:nowrap; }
.error-msg { color:var(--bad); font-size:12px; min-height:16px; }
.keybox { word-break:break-all; background:var(--bg); border:1px solid var(--border);
.keybox { display:flex; flex-wrap:wrap; align-items:center; gap:6px;
position:relative;
word-break:break-all; background:var(--bg); border:1px solid var(--border);
border-radius:6px; padding:4px 8px; margin:4px 0; font-size:11px; }
.key-text { cursor:text; flex:1 1 auto; min-width:12rem; }
.copy-tooltip {
position:absolute; right:8px; top:-26px;
background:var(--panel); border:1px solid var(--border); color:var(--ok);
padding:2px 8px; border-radius:4px; font-size:11px;
pointer-events:none; z-index:1; white-space:nowrap;
}
.tabs { display:flex; gap:10px; margin-bottom:8px; }
.tabs a { color:var(--dim); cursor:pointer; }
.tabs a.active { color:var(--accent); border-bottom:1px solid var(--accent); }
.dashboard-tabs { display:flex; gap:10px; padding:10px 20px 0; border-bottom:1px solid var(--border); }
.dashboard-tabs button { border:0; border-bottom:1px solid transparent; border-radius:0;
background:transparent; color:var(--dim); padding:5px 0 8px; }
.dashboard-tabs button.active { color:var(--accent); border-bottom-color:var(--accent); }
.wide { grid-column:1 / -1; }
section[hidden] { display:none !important; }
.chat-shell { display:grid; grid-template-columns:minmax(0, 1.35fr) minmax(320px, 0.65fr); gap:12px; }
.chat-pane { display:flex; flex-direction:column; gap:10px; min-width:0; }
.chat-panel { background:var(--bg); border:1px solid var(--border); border-radius:6px; padding:10px; }
.chat-controls { display:flex; gap:10px; align-items:end; flex-wrap:wrap; }
.chat-controls label { display:flex; flex-direction:column; gap:4px; color:var(--dim); }
.chat-controls select { min-width:220px; }
.chat-history { display:flex; flex-direction:column; gap:8px; min-height:220px; max-height:420px; overflow:auto; }
.chat-message { border:1px solid #21262d; border-radius:6px; padding:8px 10px; background:#10151d; }
.chat-role { color:var(--dim); font-size:11px; text-transform:uppercase; letter-spacing:.06em; margin-bottom:4px; }
.chat-role-user { color:var(--accent); }
.chat-role-assistant { color:var(--ok); }
.chat-role-error { color:var(--bad); }
.chat-compose { display:flex; flex-direction:column; gap:8px; }
.chat-compose textarea { min-height:112px; resize:vertical; width:100%; }
.chat-status { color:var(--dim); font-size:12px; }
.console {
background:var(--bg); border:1px solid var(--border); border-radius:6px;
min-height:160px; max-height:280px; overflow:auto; padding:7px 9px;
@@ -55,6 +84,10 @@
.console-level-info { color:var(--accent); }
.console-level-warn { color:var(--warn); }
.console-level-error { color:var(--bad); }
.status-pending { color:var(--warn); }
.status-processing { color:var(--accent); }
.status-failed { color:var(--bad); }
.status-complete { color:var(--ok); }
</style>
</head>
<body>
@@ -63,19 +96,50 @@
<span class="meta" id="self-url"></span>
<span class="meta" id="refreshed"></span>
</header>
<nav class="dashboard-tabs" aria-label="Dashboard sections">
<button id="tab-overview" class="active" onclick="switchDashboardTab('overview')">Overview</button>
<button id="tab-chat" onclick="switchDashboardTab('chat')">Chat</button>
<button id="tab-billing" style="display:none" onclick="switchDashboardTab('billing')">Billing</button>
<button id="tab-admin" style="display:none" onclick="switchDashboardTab('admin')">Admin</button>
</nav>
<main>
<section id="account-section"><h2>Account</h2><div id="account">loading…</div></section>
<section id="admin-section" style="display:none"><h2>All accounts (admin)</h2><div id="admin" class="empty"></div></section>
<section><h2>Tracker hive</h2><div id="hive" class="empty">loading…</div></section>
<section><h2>Nodes &amp; coverage</h2><div id="nodes" class="empty">loading…</div></section>
<section><h2>Client balances</h2><div id="clients" class="empty">loading…</div></section>
<section><h2>Node pending payouts</h2><div id="pending" class="empty">loading</div></section>
<section><h2>Settlement history</h2><div id="settlements" class="empty">loading…</div></section>
<section><h2>Strikes / bans / forfeitures</h2><div id="fraud" class="empty">loading…</div></section>
<section><h2>Model usage (RPM)</h2><div id="stats" class="empty">loading…</div></section>
<section><h2>Node throughput</h2><div id="throughput" class="empty">loading…</div></section>
<section class="wide"><h2>Console output</h2><div id="console" class="console empty">loading…</div></section>
<section class="wide"><h2>Inference history</h2><div id="inference-history" class="empty">loading...</div></section>
<section data-tab="overview" id="account-section"><h2>Account</h2><div id="account">loading…</div></section>
<section data-tab="overview"><h2>Tracker hive</h2><div id="hive" class="empty">loading…</div></section>
<section data-tab="overview"><h2>Nodes &amp; coverage</h2><div id="nodes" class="empty">loading…</div></section>
<section data-tab="overview"><h2>Strikes / bans / forfeitures</h2><div id="fraud" class="empty">loading…</div></section>
<section data-tab="overview"><h2>Model usage (RPM)</h2><div id="stats" class="empty">loading…</div></section>
<section data-tab="overview" class="wide"><h2>Call wall</h2><div id="call-wall" class="empty">loading...</div></section>
<section data-tab="chat" class="wide">
<h2>Chat / inference</h2>
<div class="chat-shell">
<div class="chat-pane">
<div class="chat-panel chat-controls">
<label>Model
<select id="chat-model" onchange="selectChatModel(this.value)"></select>
</label>
<button class="small" onclick="clearChatHistory()">clear history</button>
</div>
<div class="chat-panel chat-compose">
<textarea id="chat-prompt" placeholder="Ask a question or describe the task"></textarea>
<div class="form-row">
<button onclick="sendChat()" id="chat-send">Send</button>
</div>
</div>
</div>
<div class="chat-pane">
<div class="chat-panel">
<div id="chat-status" class="chat-status">select a model to start</div>
<div id="chat-history" class="chat-history empty">no messages yet</div>
</div>
</div>
</div>
</section>
<section data-tab="billing"><h2>Request history</h2><div id="billing-usage" class="empty">login required</div></section>
<section data-tab="billing" data-admin-only><h2>Node pending payouts</h2><div id="pending" class="empty">admin login required</div></section>
<section data-tab="billing" data-admin-only><h2>Settlement history</h2><div id="settlements" class="empty">admin login required</div></section>
<section data-tab="admin" id="admin-section"><h2>All accounts (admin)</h2><div id="admin" class="empty"></div></section>
<section data-tab="admin"><h2>Client balances</h2><div id="clients" class="empty">admin login required</div></section>
<section data-tab="admin" class="wide"><h2>Console output</h2><div id="console" class="console empty">admin login required</div></section>
</main>
<script>
"use strict";
@@ -211,7 +275,7 @@ function renderStats(stats) {
$("stats").innerHTML = table(["model", "rpm (1h)", "rpm (24h)", "rpm (30d)"], rows);
}
function renderThroughput(stats) {
function renderThroughputHtml(stats) {
const nodes = (stats && stats.nodes) || {};
const rows = [];
for (const [nodeId, nodeStats] of Object.entries(nodes)) {
@@ -224,49 +288,187 @@ function renderThroughput(stats) {
]);
}
}
$("throughput").innerHTML = table(["node", "model", "tps (1h)", "samples"], rows);
if (!rows.length) return '<div class="empty">no throughput samples yet</div>';
return table(["node", "model", "tps (1h)", "samples"], rows);
}
function renderInferenceHistory(data) {
const events = (data && data.events) || [];
const started = new Map();
const completed = [];
function hiveThroughputSummary(stats) {
const nodes = (stats && stats.nodes) || {};
let totalTps = 0;
let samples = 0;
for (const nodeStats of Object.values(nodes)) {
for (const s of Object.values((nodeStats && nodeStats.models) || {})) {
const t = Number(s.tokens_per_sec_last_hour);
if (Number.isFinite(t)) totalTps += t;
samples += Number(s.sample_count_last_hour || 0);
}
}
return { totalTps, samples };
}
function buildCallWallStates(events) {
const byId = new Map();
for (const e of events) {
const f = e.fields || {};
const id = f.request_id;
if (!id) continue;
if (e.message === "proxy route selected") {
started.set(id, e);
} else if (e.message === "proxy complete" || e.message === "proxy failed" || e.message === "direct proxy failed after relay") {
completed.push(e);
started.delete(id);
let rec = byId.get(id);
if (!rec) {
rec = { id, events: [] };
byId.set(id, rec);
}
rec.events.push(e);
const msg = e.message;
if (msg === "proxy route selected") {
rec.status = "pending";
rec.started = e.ts;
rec.model = f.model || f.route_model || "?";
rec.route = f.route || f.nodes;
rec.stream = f.stream;
} else if (msg === "proxy via relay" || msg === "proxy connected") {
rec.status = "processing";
if (!rec.started) rec.started = e.ts;
rec.model = rec.model || f.model || f.route_model || "?";
} else if (msg === "proxy progress") {
rec.status = "processing";
rec.model = rec.model || f.model || f.route_model || "?";
rec.tokens = f.tokens;
rec.tps = f.tokens_per_sec;
rec.elapsed = f.elapsed_seconds;
rec.stream = f.stream;
} else if (msg === "relay proxy failed, trying direct") {
rec.status = "processing";
rec.warn = "relay failed, trying direct";
} else if (msg === "proxy complete") {
rec.status = "complete";
rec.model = rec.model || f.model || f.route_model || "?";
rec.tokens = f.tokens;
rec.tps = f.tokens_per_sec;
rec.elapsed = f.elapsed_seconds;
rec.stream = f.stream;
rec.terminal = e;
} else if (msg === "proxy failed" || msg === "direct proxy failed after relay") {
rec.status = "failed";
rec.model = rec.model || f.model || f.route_model || "?";
rec.error = f.error || msg;
rec.terminal = e;
}
}
const activeByModel = {};
for (const e of started.values()) {
const f = e.fields || {};
const model = f.model || f.route_model || "?";
activeByModel[model] = (activeByModel[model] || 0) + 1;
}
const active = Object.entries(activeByModel)
.map(([model, count]) => `${esc(model)}: <span class="num">${count}</span> active`)
.join(" &middot; ");
const rows = completed.slice(-20).reverse().map(e => {
return byId;
}
function callWallAgeSeconds(rec, nowSec) {
const start = rec.started || (rec.events[0] && rec.events[0].ts) || nowSec;
return Math.max(0, nowSec - start);
}
function renderCallWall(consoleData, stats) {
const events = (consoleData && consoleData.events) || [];
const nowSec = Date.now() / 1000;
const states = buildCallWallStates(events);
const active = [];
const terminal = [];
for (const rec of states.values()) {
if (rec.status === "pending" || rec.status === "processing") active.push(rec);
else if (rec.status === "complete" || rec.status === "failed") terminal.push(rec);
}
active.sort((a, b) => (a.started || 0) - (b.started || 0));
terminal.sort((a, b) => (b.terminal && b.terminal.ts) - (a.terminal && a.terminal.ts));
const hive = hiveThroughputSummary(stats);
const pending = active.filter(r => r.status === "pending").length;
const processing = active.filter(r => r.status === "processing").length;
const failedRecent = terminal.filter(r => r.status === "failed").length;
let html =
`<div class="dim" style="margin-bottom:6px">` +
`hive tps (1h): <b>${esc(tps(hive.totalTps))}</b> · samples: <b>${hive.samples}</b> · ` +
`active: <span class="status-processing">${processing}</span> processing · ` +
`<span class="status-pending">${pending}</span> pending` +
(failedRecent ? ` · <span class="status-failed">${failedRecent} recent failures</span>` : "") +
`</div>`;
if (active.length) {
html += table(["status", "age", "model", "request", "tps", "tokens", "route / note"], active.map(rec => {
const statusCls = rec.status === "pending" ? "status-pending" : "status-processing";
const note = rec.warn || (rec.route ? short(String(rec.route), 28) : "");
return [
`<span class="${statusCls}">${esc(rec.status)}</span>`,
`<span class="num">${esc(callWallAgeSeconds(rec, nowSec).toFixed(1))}s</span>`,
esc(short(rec.model || "?", 28)),
esc(short(rec.id, 18)),
`<span class="num">${esc(tps(rec.tps))}</span>`,
`<span class="num">${esc(String(rec.tokens ?? "—"))}</span>`,
esc(note),
];
}));
} else {
html += '<div class="empty">no in-flight requests</div>';
}
const historyRows = terminal.slice(0, 40).map(rec => {
const e = rec.terminal || {};
const f = e.fields || {};
const statusCls = rec.status === "failed" ? "status-failed" : "status-complete";
const detail = rec.status === "failed"
? esc(short(rec.error || "?", 40))
: (f.stream ? "stream" : "json");
return [
new Date((e.ts || 0) * 1000).toLocaleTimeString(),
esc(short(f.model || f.route_model || "?", 28)),
esc(short(f.request_id || "?", 18)),
`<span class="num">${esc(tps(f.tokens_per_sec))}</span>`,
`<span class="num">${esc(String(f.tokens ?? "?"))}</span>`,
`<span class="num">${esc(String(f.elapsed_seconds ?? "?"))}</span>`,
f.stream ? "stream" : "json",
`<span class="${statusCls}">${esc(rec.status)}</span>`,
esc(short(rec.model || "?", 28)),
esc(short(rec.id, 18)),
`<span class="num">${esc(tps(rec.tps ?? f.tokens_per_sec))}</span>`,
`<span class="num">${esc(String(rec.tokens ?? f.tokens ?? "?"))}</span>`,
`<span class="num">${esc(String(rec.elapsed ?? f.elapsed_seconds ?? "?"))}</span>`,
detail,
];
});
$("inference-history").innerHTML =
`<div class="dim" style="margin-bottom:6px">${active || "no active requests"}</div>` +
(rows.length ? table(["time", "model", "request", "tps", "tokens", "sec", "mode"], rows)
: '<div class="empty">no completed inference requests</div>');
html += '<div style="margin-top:8px"><b class="dim">recent completed / failed</b></div>';
html += historyRows.length
? table(["time", "status", "model", "request", "tps", "tokens", "sec", "detail"], historyRows)
: '<div class="empty">no completed requests yet</div>';
$("call-wall").innerHTML = html;
}
function groupUsageByDayModel(records) {
const groups = new Map();
for (const u of records) {
const day = new Date((u.ts || 0) * 1000).toLocaleDateString();
const model = u.model || "?";
const key = day + "\0" + model;
const g = groups.get(key) || { day, model, requests: 0, tokens: 0, cost: 0 };
g.requests += 1;
g.tokens += Number(u.total_tokens || 0);
g.cost += Number(u.cost || 0);
groups.set(key, g);
}
return Array.from(groups.values()).sort((a, b) => {
const dayCmp = b.day.localeCompare(a.day);
return dayCmp !== 0 ? dayCmp : a.model.localeCompare(b.model);
});
}
function renderBillingUsage(records) {
const el = $("billing-usage");
if (!el) return;
if (!sessionToken) {
el.innerHTML = '<div class="empty">login required</div>';
return;
}
if (!records.length) {
el.innerHTML = '<div class="empty">no billed requests yet</div>';
return;
}
const rows = records.slice().reverse().map(u => [
new Date((u.ts || 0) * 1000).toLocaleString(),
esc(short(u.model || "?", 28)),
esc(short(u.api_key || "?", 14)),
`<span class="num">${esc(String(u.total_tokens))}</span>`,
`<span class="num">${usdt(u.cost)}</span>`,
]);
el.innerHTML = `<div class="dim" style="margin-bottom:6px">${records.length} request${records.length === 1 ? "" : "s"}</div>` +
table(["time", "model", "api key", "tokens", "cost (USDT)"], rows);
}
function renderConsole(data) {
@@ -288,10 +490,123 @@ function renderConsole(data) {
let sessionToken = localStorage.getItem("meshnet_session") || null;
let authTab = "login";
let dashboardTab = "overview";
let isAdmin = false;
let isLoggedIn = false;
let accountApiKeys = [];
let accountUsageRecords = [];
let lastStats = null;
let availableModels = [];
let chatHistory = [];
let chatBusy = false;
let selectedChatModel = localStorage.getItem("meshnet_chat_model") || "";
async function apiCall(path, method, body) {
function switchDashboardTab(name) {
if (name === "admin" && !isAdmin) name = "overview";
if (name === "billing" && !isLoggedIn) name = "overview";
dashboardTab = name;
updateSectionVisibility();
for (const tabName of ["overview", "chat", "billing", "admin"]) {
const button = $("tab-" + tabName);
if (button) button.classList.toggle("active", tabName === dashboardTab);
}
}
function updateSectionVisibility() {
for (const section of document.querySelectorAll("main section[data-tab]")) {
const onTab = section.dataset.tab === dashboardTab;
const adminOnly = section.hasAttribute("data-admin-only");
section.hidden = !onTab || (adminOnly && !isAdmin);
}
}
function renderChatStatus(text) {
$("chat-status").textContent = text;
}
function renderChatHistory() {
const history = $("chat-history");
if (!chatHistory.length) {
history.classList.add("empty");
history.innerHTML = "no messages yet";
return;
}
history.classList.remove("empty");
history.innerHTML = chatHistory.map(msg => {
const roleClass = msg.role === "user" ? "chat-role-user" : msg.role === "assistant" ? "chat-role-assistant" : "chat-role-error";
const label = msg.role === "user" ? "user" : msg.role === "assistant" ? "assistant" : "error";
const meta = msg.model ? ` <span class="dim">· ${esc(short(msg.model, 24))}</span>` : "";
return `<div class="chat-message"><div class="chat-role ${roleClass}">${label}${meta}</div><div>${esc(msg.content)}</div></div>`;
}).join("");
history.scrollTop = history.scrollHeight;
}
function renderChatModels() {
const select = $("chat-model");
if (!select) return;
const models = availableModels.slice();
if (!models.length) {
select.innerHTML = '<option value="">no models available</option>';
select.disabled = true;
return;
}
select.disabled = false;
const preferred = models.find(m => m.id === selectedChatModel)
|| models[0];
selectedChatModel = preferred.id;
localStorage.setItem("meshnet_chat_model", selectedChatModel);
select.innerHTML = models.map(model => {
const label = model.name && model.name !== model.id
? `${model.name} (${model.id})`
: model.id;
const suffix = model.recommended ? " [recommended]" : "";
return `<option value="${esc(model.id)}"${model.id === selectedChatModel ? " selected" : ""}>${esc(label + suffix)}</option>`;
}).join("");
select.value = selectedChatModel;
}
function selectChatModel(value) {
selectedChatModel = value || "";
localStorage.setItem("meshnet_chat_model", selectedChatModel);
}
function clearChatHistory() {
chatHistory = [];
renderChatHistory();
renderChatStatus("history cleared");
}
function chatAuthToken() {
if (accountApiKeys.length) return accountApiKeys[0];
return null;
}
function setAdminMode(enabled) {
isAdmin = enabled;
$("tab-admin").style.display = enabled ? "" : "none";
if (!enabled && dashboardTab === "admin") {
switchDashboardTab("overview");
} else {
updateSectionVisibility();
}
}
function setLoggedInMode(enabled) {
isLoggedIn = enabled;
$("tab-billing").style.display = enabled ? "" : "none";
if (!enabled) {
accountUsageRecords = [];
renderBillingUsage([]);
if (dashboardTab === "billing") switchDashboardTab("overview");
} else {
updateSectionVisibility();
}
}
async function apiCall(path, method, body, bearerToken) {
const headers = { "Content-Type": "application/json" };
if (sessionToken) headers["Authorization"] = "Bearer " + sessionToken;
const token = bearerToken === undefined ? sessionToken : bearerToken;
if (token) headers["Authorization"] = "Bearer " + token;
try {
const r = await fetch(path, {
method: method || "GET",
@@ -327,7 +642,10 @@ function renderAuthForms(errorMsg) {
$("account").innerHTML =
`<div class="tabs">${tab("login", "Log in")}${tab("register", "Register")}</div>` +
form + `<div class="error-msg">${errorMsg ? esc(errorMsg) : ""}</div>`;
$("admin-section").style.display = "none";
accountApiKeys = [];
renderChatAuthHint();
setLoggedInMode(false);
setAdminMode(false);
}
function switchAuthTab(name) { authTab = name; renderAuthForms(); }
@@ -375,15 +693,82 @@ async function topupKey(key) {
await renderAccountPanel();
}
const COPY_TOOLTIP_MS = 2000;
function showCopiedTooltip(anchor) {
const box = (anchor && anchor.closest && anchor.closest(".keybox")) || anchor;
if (!box) return;
const existing = box.querySelector(".copy-tooltip");
if (existing) existing.remove();
const tip = document.createElement("span");
tip.className = "copy-tooltip";
tip.textContent = "Copied!";
tip.setAttribute("role", "status");
box.appendChild(tip);
setTimeout(() => tip.remove(), COPY_TOOLTIP_MS);
}
async function copyApiKeyText(text, anchor) {
try {
await navigator.clipboard.writeText(text);
} catch {
const ta = document.createElement("textarea");
ta.value = text;
ta.style.position = "fixed";
ta.style.left = "-9999px";
document.body.appendChild(ta);
ta.select();
try { document.execCommand("copy"); } catch { /* ignore */ }
document.body.removeChild(ta);
}
if (anchor) showCopiedTooltip(anchor);
}
function selectApiKeyText(el) {
const range = document.createRange();
range.selectNodeContents(el);
const sel = window.getSelection();
if (!sel) return;
sel.removeAllRanges();
sel.addRange(range);
}
function copyApiKeyFromTextEl(el) {
const key = el.dataset.key || el.textContent || "";
return copyApiKeyText(key, el);
}
function copyApiKeyFromButton(button) {
const el = button.closest(".keybox") && button.closest(".keybox").querySelector(".key-text");
const key = (el && el.dataset.key) || "";
return copyApiKeyText(key, button);
}
function renderChatAuthHint() {
if (chatAuthToken()) {
renderChatStatus("ready to send with your active API key");
} else if (sessionToken) {
renderChatStatus("create an API key in Account to use chat on a billing-enabled tracker");
} else {
renderChatStatus("log in if this tracker requires an API key");
}
}
async function renderAccountPanel() {
const r = await apiCall("/v1/account");
if (r.status === 404) { // accounts disabled on this tracker
$("account-section").style.display = "none";
$("admin-section").style.display = "none";
accountApiKeys = [];
accountUsageRecords = [];
renderChatAuthHint();
setLoggedInMode(false);
setAdminMode(false);
return;
}
if (!r.ok) { setSession(null); renderAuthForms(); return; }
const { account, api_keys, balances, total_balance, usage, topup_amount } = r.data;
accountApiKeys = Array.isArray(api_keys) ? api_keys.slice() : [];
accountUsageRecords = (usage && (usage.records || usage.recent)) || [];
const who = account.email || account.wallet || account.account_id;
let html =
`<div><b>${esc(who)}</b> <span class="pill">${esc(account.role)}</span> ` +
@@ -395,8 +780,10 @@ async function renderAccountPanel() {
'<button class="small" onclick="createKey()">+ new key</button></div>';
if (api_keys.length) {
for (const key of api_keys) {
html += `<div class="keybox">${esc(key)}` +
html += `<div class="keybox">` +
`<span class="key-text" data-key="${esc(key)}" onclick="selectApiKeyText(this)" ondblclick="copyApiKeyFromTextEl(this)">${esc(key)}</span>` +
`<span class="dim">(${usdt(balances[key] ?? 0)} USDT)</span>` +
`<button class="small" type="button" onclick="copyApiKeyFromButton(this)">copy</button>` +
(topup_amount > 0
? ` <button class="small" onclick="topupKey('${esc(key)}')">+${usdt(topup_amount)} (devnet)</button>`
: "") +
@@ -405,24 +792,86 @@ async function renderAccountPanel() {
} else {
html += '<div class="empty">no active keys</div>';
}
if (usage.recent && usage.recent.length) {
html += '<div style="margin-top:6px"><b class="dim">recent usage</b></div>' +
table(["time", "model", "tokens", "cost"], usage.recent.slice().reverse().map(u => [
new Date(u.ts * 1000).toLocaleTimeString(),
esc(short(u.model || "?", 24)),
`<span class="num">${esc(String(u.total_tokens))}</span>`,
`<span class="num">${usdt(u.cost)}</span>`,
html += '<div style="margin-top:8px"><b class="dim">node throughput</b></div>' +
`<div id="account-throughput">${renderThroughputHtml(lastStats)}</div>`;
const grouped = groupUsageByDayModel(accountUsageRecords);
if (grouped.length) {
html += '<div style="margin-top:8px"><b class="dim">usage by day / model</b> ' +
'<span class="dim">(full request list on Billing tab)</span></div>' +
table(["day", "model", "requests", "tokens", "cost (USDT)"], grouped.map(g => [
esc(g.day),
esc(short(g.model, 28)),
`<span class="num">${g.requests}</span>`,
`<span class="num">${esc(String(g.tokens))}</span>`,
`<span class="num">${usdt(g.cost)}</span>`,
]));
}
$("account").innerHTML = html;
renderBillingUsage(accountUsageRecords);
renderChatAuthHint();
renderChatModels();
renderChatHistory();
setLoggedInMode(true);
setAdminMode(account.role === "admin");
if (account.role === "admin") await renderAdminPanel();
else $("admin-section").style.display = "none";
}
async function sendChat() {
const promptEl = $("chat-prompt");
const prompt = promptEl.value.trim();
if (!prompt || chatBusy) return;
if (!selectedChatModel) {
renderChatStatus("select a model first");
return;
}
const bearerToken = chatAuthToken();
const body = {
model: selectedChatModel,
messages: [
...chatHistory
.filter(msg => msg.role === "user" || msg.role === "assistant")
.map(msg => ({ role: msg.role, content: msg.content })),
{ role: "user", content: prompt },
],
stream: false,
max_tokens: 256,
};
chatBusy = true;
$("chat-send").disabled = true;
promptEl.value = "";
chatHistory.push({ role: "user", content: prompt, model: selectedChatModel });
renderChatHistory();
renderChatStatus("sending request…");
const r = await apiCall("/v1/chat/completions", "POST", body, bearerToken);
chatBusy = false;
$("chat-send").disabled = false;
if (!r.ok) {
const error = r.data && r.data.error
? (typeof r.data.error === "string" ? r.data.error : r.data.error.message || "request failed")
: "request failed";
chatHistory.push({ role: "error", content: error, model: selectedChatModel });
renderChatHistory();
renderChatStatus(error);
promptEl.focus();
return;
}
const reply = (r.data && r.data.choices && r.data.choices[0] && r.data.choices[0].message && r.data.choices[0].message.content) || "";
const usage = r.data && r.data.usage;
chatHistory.push({
role: "assistant",
content: reply || "(empty response)",
model: selectedChatModel,
});
renderChatHistory();
renderChatStatus(usage
? `done: ${usage.total_tokens ?? "?"} tokens`
: "done");
promptEl.focus();
}
async function renderAdminPanel() {
const r = await apiCall("/v1/admin/accounts");
if (!r.ok) { $("admin-section").style.display = "none"; return; }
$("admin-section").style.display = "";
if (!r.ok) { setAdminMode(false); return; }
const rows = (r.data.accounts || []).map(a => {
const balance = Object.values(a.balances || {}).reduce((x, y) => x + y, 0);
return [
@@ -438,28 +887,45 @@ async function renderAdminPanel() {
async function refresh() {
$("self-url").textContent = location.host;
const [raft, map, summary, settlements, wallets, stats, consoleData] = await Promise.all([
const [raft, map, stats, models, consoleData, adminData] = await Promise.all([
fetchJson("/v1/raft/status"),
fetchJson("/v1/network/map"),
fetchJson("/v1/stats"),
fetchJson("/v1/models"),
fetchJson("/v1/console"),
isAdmin ? Promise.all([
fetchJson("/v1/billing/summary"),
fetchJson("/v1/billing/settlements"),
fetchJson("/v1/registry/wallets"),
fetchJson("/v1/stats"),
fetchJson("/v1/console"),
]) : Promise.resolve([null, null, null]),
]);
const [summary, settlements, wallets] = adminData;
lastStats = stats;
availableModels = ((models && models.data) || []).map(model => ({
id: model.id,
name: model.name || model.id,
recommended: Boolean(model.recommended),
aliases: model.aliases || [],
})).filter(model => model.id);
renderHive(raft);
renderNodes(map);
renderBilling(summary);
renderSettlements(settlements);
renderFraud(wallets, summary);
renderStats(stats);
renderThroughput(stats);
renderInferenceHistory(consoleData);
renderCallWall(consoleData, stats);
renderConsole(consoleData);
const throughputEl = $("account-throughput");
if (throughputEl) throughputEl.innerHTML = renderThroughputHtml(stats);
renderChatModels();
renderChatHistory();
$("refreshed").textContent = "refreshed " + new Date().toLocaleTimeString();
}
refresh();
renderAccountPanel();
renderChatModels();
renderChatHistory();
renderChatAuthHint();
setInterval(refresh, 4000);
setInterval(() => { if (sessionToken) renderAccountPanel(); }, 8000);
</script>

View File

@@ -3560,7 +3560,7 @@ class _TrackerHandler(http.server.BaseHTTPRequestHandler):
return
keys = server.accounts.keys_for(account["account_id"]) # type: ignore[union-attr]
balances = {}
usage: dict = {"requests": 0, "total_tokens": 0, "total_cost": 0.0, "recent": []}
usage: dict = {"requests": 0, "total_tokens": 0, "total_cost": 0.0, "recent": [], "records": []}
if server.billing is not None:
balances = {key: server.billing.get_client_balance(key) for key in keys}
usage = server.billing.usage_for(keys)

View File

@@ -12,7 +12,9 @@ from meshnet_tracker.server import TrackerServer
PANELS = [
"Tracker hive", "Nodes &amp; coverage", "Client balances",
"Node pending payouts", "Settlement history",
"Strikes / bans / forfeitures", "Model usage", "Node throughput",
"Strikes / bans / forfeitures", "Model usage", "Call wall",
"Request history", "node throughput",
"Chat / inference",
"Console output",
]

View File

@@ -566,6 +566,78 @@ def test_download_shard_prefers_tracker_model_source_over_huggingface(
assert hf_calls == []
def test_download_shard_prefers_tracker_full_model_source_over_huggingface(
tmp_path,
monkeypatch,
):
"""A tracker-advertised full snapshot is sufficient on its own — HF is never contacted."""
contents = {
"config.json": b"{}",
"weights-a.safetensors": b"tracker-a",
"weights-b.safetensors": b"tracker-b",
}
class FakeFileResponse:
def __init__(self, payload: bytes):
self._payload = io.BytesIO(payload)
self._length = len(payload)
def __enter__(self):
return self
def __exit__(self, exc_type, exc, tb):
return False
def getheader(self, name: str):
if name == "Content-Length":
return str(self._length)
if name == "Content-Type":
return "application/octet-stream"
return None
def read(self, size: int = -1) -> bytes:
return self._payload.read(size)
def fake_urlopen(url, *args, **kwargs):
query = urllib.parse.parse_qs(urllib.parse.urlparse(url).query)
rel = query.get("file", [None])[0]
assert rel in contents, f"unexpected per-file request: {url}"
return FakeFileResponse(contents[rel])
monkeypatch.setattr(urllib.request, "urlopen", fake_urlopen)
hf_calls = []
def fake_snapshot_download(**kwargs):
hf_calls.append(kwargs)
raise AssertionError("HuggingFace should not be contacted when tracker full_files are available")
monkeypatch.setitem(
sys.modules,
"huggingface_hub",
types.SimpleNamespace(snapshot_download=fake_snapshot_download),
)
shard_dir = download_shard(
"tiny-llama",
0,
3,
cache_dir=tmp_path / "cache",
hf_repo="org/tiny-llama-shards",
model_sources=[{
"type": "tracker-full",
"url": "http://tracker/v1/model-files/download?model=tiny-llama&full=1",
"files": ["config.json", "weights-a.safetensors", "weights-b.safetensors"],
"full_files": ["config.json", "weights-a.safetensors", "weights-b.safetensors"],
}],
progress=False,
)
assert (shard_dir / "config.json").read_text() == "{}"
assert (shard_dir / "weights-a.safetensors").read_text() == "tracker-a"
assert (shard_dir / "weights-b.safetensors").read_text() == "tracker-b"
assert hf_calls == []
def test_download_shard_falls_back_to_huggingface_when_tracker_source_fails(
tmp_path,
monkeypatch,

View File

@@ -11,8 +11,12 @@ import pytest
from meshnet_node.model_backend import (
InsufficientVRAMError,
PartialModelLoadUnsupported,
TensorPayload,
TorchModelShard,
_call_layer,
_load_partial_model_from_snapshot,
_should_partial_materialize_shard,
_decoder_attention_mask,
_int_tensor_header,
build_quantization_config,
@@ -334,6 +338,295 @@ def test_call_layer_passes_rotary_position_embeddings():
) == "hidden"
def test_partial_materialize_guard_requires_local_non_full_non_quantized_snapshot(tmp_path):
snapshot_dir = tmp_path / "snapshot"
snapshot_dir.mkdir()
(snapshot_dir / "config.json").write_text("{}")
(snapshot_dir / "model.safetensors.index.json").write_text('{"weight_map": {}}')
assert _should_partial_materialize_shard(
str(snapshot_dir),
4,
7,
total_layers_hint=40,
uses_quantized_weights=False,
) is True
assert _should_partial_materialize_shard(
str(snapshot_dir),
0,
39,
total_layers_hint=40,
uses_quantized_weights=False,
) is False
assert _should_partial_materialize_shard(
str(snapshot_dir),
4,
7,
total_layers_hint=40,
uses_quantized_weights=True,
) is False
assert _should_partial_materialize_shard(
"repo/model",
4,
7,
total_layers_hint=40,
uses_quantized_weights=False,
) is False
def test_partial_snapshot_loader_materializes_only_assigned_tensors(tmp_path):
snapshot_dir = tmp_path / "snapshot"
snapshot_dir.mkdir()
(snapshot_dir / "config.json").write_text("{}")
(snapshot_dir / "model.safetensors.index.json").write_text(json.dumps({
"weight_map": {
"model.embed_tokens.weight": "shard-1.safetensors",
"model.layers.0.self_attn.q_proj.weight": "shard-1.safetensors",
"model.layers.1.self_attn.q_proj.weight": "shard-2.safetensors",
"model.layers.2.self_attn.q_proj.weight": "shard-3.safetensors",
"model.norm.weight": "shard-3.safetensors",
"lm_head.weight": "shard-3.safetensors",
}
}))
for rel in ("shard-1.safetensors", "shard-2.safetensors", "shard-3.safetensors"):
(snapshot_dir / rel).write_bytes(b"stub")
class FakeModule:
def __init__(self, name):
self.name = name
self.to_calls = []
def to(self, device):
self.to_calls.append(device)
return self
class FakeModel:
def __init__(self):
self.model = types.SimpleNamespace(
embed_tokens=FakeModule("embed"),
layers=[FakeModule("layer0"), FakeModule("layer1"), FakeModule("layer2")],
rotary_emb=FakeModule("rotary"),
norm=FakeModule("norm"),
)
self.lm_head = FakeModule("lm_head")
self.tie_weights_called = 0
def tie_weights(self):
self.tie_weights_called += 1
class AutoConfigStub:
@staticmethod
def from_pretrained(model_id):
assert model_id == str(snapshot_dir)
return types.SimpleNamespace(num_hidden_layers=3)
class AutoModelStub:
@staticmethod
def from_config(cfg, torch_dtype=None):
assert cfg.num_hidden_layers == 3
assert torch_dtype == "bf16"
return FakeModel()
class EmptyWeights:
def __init__(self):
self.entered = 0
self.exited = 0
def __call__(self):
return self
def __enter__(self):
self.entered += 1
return None
def __exit__(self, exc_type, exc, tb):
self.exited += 1
return False
init_empty_weights = EmptyWeights()
set_calls = []
def fake_set_tensor(module, tensor_name, device, value=None, dtype=None):
set_calls.append((tensor_name, device, value, dtype))
tensors = {
"shard-1.safetensors": {
"model.embed_tokens.weight": "embed",
"model.layers.0.self_attn.q_proj.weight": "layer0",
},
"shard-2.safetensors": {
"model.layers.1.self_attn.q_proj.weight": "layer1",
},
"shard-3.safetensors": {
"model.layers.2.self_attn.q_proj.weight": "layer2",
"model.norm.weight": "norm",
"lm_head.weight": "lm_head",
},
}
class FakeSafeOpen:
def __init__(self, filename, framework, device):
assert framework == "pt"
assert device == "cpu"
self.filename = Path(filename).name
def __enter__(self):
return self
def __exit__(self, exc_type, exc, tb):
return False
def get_tensor(self, tensor_name):
return tensors[self.filename][tensor_name]
model = _load_partial_model_from_snapshot(
AutoConfigStub,
AutoModelStub,
types.SimpleNamespace(),
str(snapshot_dir),
1,
1,
"bf16",
"cpu:0",
init_empty_weights_fn=init_empty_weights,
set_tensor_fn=fake_set_tensor,
safe_open_fn=FakeSafeOpen,
)
assert init_empty_weights.entered == 1
assert init_empty_weights.exited == 1
assert model.tie_weights_called == 1
assert [call[0] for call in set_calls] == ["model.layers.1.self_attn.q_proj.weight"]
assert model.model.layers[1].to_calls == ["cpu:0"]
assert model.model.layers[0].to_calls == []
assert model.model.layers[2].to_calls == []
assert model.model.embed_tokens.to_calls == []
assert model.model.norm.to_calls == []
assert model.lm_head.to_calls == []
assert model.model.rotary_emb.to_calls == ["cpu:0"]
def test_partial_snapshot_loader_requires_known_layer_count(tmp_path):
snapshot_dir = tmp_path / "snapshot"
snapshot_dir.mkdir()
(snapshot_dir / "config.json").write_text("{}")
(snapshot_dir / "model.safetensors.index.json").write_text(json.dumps({
"weight_map": {"model.layers.0.self_attn.q_proj.weight": "shard.safetensors"}
}))
(snapshot_dir / "shard.safetensors").write_bytes(b"stub")
class AutoConfigStub:
@staticmethod
def from_pretrained(model_id):
return types.SimpleNamespace()
class AutoModelStub:
@staticmethod
def from_config(cfg, torch_dtype=None):
raise AssertionError("from_config should not run without a known layer count")
class UnusedContext:
def __enter__(self):
return None
def __exit__(self, exc_type, exc, tb):
return False
with pytest.raises(PartialModelLoadUnsupported, match="num_hidden_layers"):
_load_partial_model_from_snapshot(
AutoConfigStub,
AutoModelStub,
types.SimpleNamespace(),
str(snapshot_dir),
0,
0,
"bf16",
"cpu:0",
init_empty_weights_fn=lambda: UnusedContext(),
set_tensor_fn=lambda *args, **kwargs: None,
safe_open_fn=lambda *args, **kwargs: None,
)
def test_torch_model_shard_prefers_partial_loader_for_local_snapshot(tmp_path, monkeypatch):
import meshnet_node.model_backend as backend
snapshot_dir = tmp_path / "snapshot"
snapshot_dir.mkdir()
(snapshot_dir / "config.json").write_text("{}")
(snapshot_dir / "model.safetensors.index.json").write_text('{"weight_map": {}}')
class FakeModel:
def __init__(self):
self.model = types.SimpleNamespace(
layers=[object(), object(), object()],
embed_tokens=object(),
)
self.config = types.SimpleNamespace(hidden_size=8)
self.eval_called = 0
def eval(self):
self.eval_called += 1
fake_model = FakeModel()
partial_calls = []
class AutoConfigStub:
@staticmethod
def from_pretrained(model_id, cache_dir=None):
return types.SimpleNamespace(num_hidden_layers=3, text_config=types.SimpleNamespace(dtype="torch.bfloat16"))
class AutoModelStub:
@staticmethod
def from_pretrained(*args, **kwargs):
raise AssertionError("full model load should not run for partial local shards")
class AutoTokenizerStub:
@staticmethod
def from_pretrained(model_id, cache_dir=None):
assert model_id == str(snapshot_dir)
return types.SimpleNamespace()
monkeypatch.setitem(
sys.modules,
"torch",
types.SimpleNamespace(
cuda=types.SimpleNamespace(is_available=lambda: False),
device=lambda value: value,
bfloat16="bf16",
),
)
monkeypatch.setitem(
sys.modules,
"transformers",
types.SimpleNamespace(
AutoConfig=AutoConfigStub,
AutoModelForCausalLM=AutoModelStub,
AutoTokenizer=AutoTokenizerStub,
),
)
monkeypatch.setattr(
backend,
"_load_partial_model_from_snapshot",
lambda *args, **kwargs: partial_calls.append((args, kwargs)) or fake_model,
)
shard = TorchModelShard(
"repo/model",
1,
1,
quantization="auto",
cache_dir=snapshot_dir,
)
assert len(partial_calls) == 1
assert shard.model is fake_model
assert fake_model.eval_called == 1
assert shard.total_layers == 3
assert shard.is_head is False
assert shard.is_tail is False
@pytest.mark.integration
def test_two_node_gpt2_completion_is_deterministic():
if os.environ.get("CI"):