File size: 10,125 Bytes
0693474 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 | """One bounded UP2 public-corpus probe; private output contains hashes/numbers only."""
from __future__ import annotations
import argparse
import hashlib
import json
import math
import re
import time
import urllib.request
import uuid
from collections.abc import Callable
from pathlib import Path
from typing import Protocol, cast
from offload.prefill_maxlen.evidence import Json, number, record
from offload.prefill_trace.window_requests import corpus, exact_prompt, idle, stream_summary
from offload.launch.windows.up2_checks import CAP, require, screen_record
URL = 'http://127.0.0.1:18001'
class NeedleBuilder(Protocol):
def build(self, ctx: int, n: int, seed: int) -> tuple[str, dict[str, str]]: ...
def needle(target: int, salt: str, output: Path, ledger: Path, deadline: float, data_dir: Path, *, screen: bool = False) -> None:
def event(row: dict[str, Json]) -> None:
write(ledger,screen_record(row,screen))
from offload.kvpack.needle import Builder, score
make = cast(Callable[[str | None, str | None, Path], NeedleBuilder], Builder)
grade = cast(Callable[[str, dict[str,str], set[str]], dict[str,Json]], score)
idle(URL)
with urllib.request.urlopen(URL+'/v1/models',timeout=10) as response:
models = cast(list[Json],record(cast(Json,json.load(response)))['data'])
model = record(models[0])
require(model.get('max_model_len') == CAP, 'needle cap mismatch')
prompt,codes = make(URL,str(model['id']),data_dir).build(target,6,42+target)
request_id = uuid.uuid4().hex
body: dict[str,Json] = {'model':model['id'],'request_id':request_id,
'messages':[{'role':'user','content':prompt}], 'max_tokens':300, 'temperature':0,'top_p':1,
'seed':42,'priority':10,'cache_salt':salt,'chat_template_kwargs':{'thinking':False}}
require(time.time() < deadline,f'needle submission deadline {deadline:.6f} reached')
event({'event':'send_intent','id':request_id,'target':target,'kind':'needle','time':time.time()})
try:
req = urllib.request.Request(URL+'/v1/chat/completions',json.dumps(body).encode(),{'Content-Type':'application/json'})
with urllib.request.urlopen(req,timeout=900) as response:
event({'event':'http_opened','id':request_id,'time':time.time()})
result = record(cast(Json,json.load(response)))
choice = record(cast(list[Json],result['choices'])[0])
text = str(record(choice['message']).get('content') or '')
foreign = set(re.findall(r'\b\d{6}\b',text))-set(codes.values())
graded = grade(text,codes,foreign)
require(graded.get('recall') == 6 and not graded.get('foreign_codes'),'needle6/6/foreign-code failure')
usage = record(result['usage'])
require(number(usage['prompt_tokens'])+300 <= CAP and
record(usage['prompt_tokens_details']).get('cached_tokens') == 0,'needle length/cache failure')
require(choice.get('finish_reason') == 'stop','needle did not complete normally')
with output.open('x') as handle:
json.dump(screen_record({'context':target,'recall':6,'of':6,'foreign_codes':0,'usage':usage},screen),handle)
handle.write('\n')
event({'event':'completed','id':request_id,'time':time.time()})
except Exception as exc:
event({'event':'failed','id':request_id,'error_class':type(exc).__name__,'time':time.time()})
raise
def write(path: Path, row: dict[str, Json]) -> None:
with path.open('a') as output:
output.write(json.dumps(row, allow_nan=False) + '\n')
output.flush()
def execute(target: int, budget: int, salt: str, output: Path, ledger: Path,
deadline: float, data_dir: Path, *, numeric: bool = False, force_length: bool = False,
rep: int = 0, kind: str = 'diagnostic', screen: bool = False) -> dict[str, Json]:
def event(row: dict[str, Json]) -> None:
write(ledger,screen_record(row,screen))
require(0 < target and target + budget <= CAP, 'prompt/output exceeds low cap')
require(not output.exists(), 'refusing existing request result')
template: dict[str, Json] = {'thinking':False} if numeric else {'thinking':True, 'reasoning_effort':'high'}
def post(endpoint: str, body: dict[str, Json]) -> dict[str, Json]:
require(time.time() < deadline, f'submission deadline {deadline:.6f} reached')
req = urllib.request.Request(URL+endpoint, json.dumps(body).encode(), {'Content-Type':'application/json'})
with urllib.request.urlopen(req, timeout=min(900, max(1, deadline-time.time()))) as response:
return record(cast(Json, json.load(response)))
idle(URL)
with urllib.request.urlopen(URL+'/v1/models', timeout=10) as response:
model = record(cast(list[Json], record(cast(Json,json.load(response)))['data'])[0])
require(model.get('max_model_len') == CAP and model.get('root') == '/srv/dsv41/legal-v2a', 'served target/cap mismatch')
materials, hashes = corpus(data_dir)
def count(text: str) -> int:
return int(number(post('/tokenize', {'model':model['id'], 'messages':[{'role':'user','content':text}],
'add_generation_prompt':True, 'chat_template_kwargs':template})['count']))
prompt = exact_prompt(materials, target, count)
request_id = uuid.uuid4().hex
body: dict[str, Json] = {'model':model['id'], 'request_id':request_id,
'messages':[{'role':'user','content':prompt}], 'max_tokens':budget,
'temperature':0 if numeric else 1, 'top_p':1, 'seed':42, 'priority':10,
'cache_salt':salt, 'chat_template_kwargs':template, 'ignore_eos':force_length,
'stream':not numeric}
if numeric:
body.update({'logprobs':True, 'top_logprobs':20})
else:
body['stream_options'] = {'include_usage':True}
require(time.time() < deadline, f'submission deadline {deadline:.6f} reached')
req = urllib.request.Request(URL+'/v1/chat/completions', json.dumps(body).encode(), {'Content-Type':'application/json'})
started = time.monotonic()
event( {'event':'send_intent', 'id':request_id, 'target':target, 'kind':kind, 'time':time.time()})
try:
with urllib.request.urlopen(req, timeout=900) as response:
event( {'event':'http_opened', 'id':request_id, 'time':time.time()})
if numeric:
result = record(cast(Json,json.load(response)))
choice = record(cast(list[Json],result['choices'])[0])
tokens = cast(list[Json],record(choice['logprobs'])['content'])
require(bool(tokens), 'no numerical logprobs')
top = cast(list[Json],record(tokens[0])['top_logprobs'])
probabilities: dict[str, Json] = {}
# vLLM may put the sampled token first or return21 entries. Order is immaterial.
for item in top:
row = record(item)
key = hashlib.sha256(str(row['token']).encode()).hexdigest()
probabilities[key] = math.exp(number(row['logprob']))
msg = record(choice['message'])
summary: dict[str, Json] = {'usage':result['usage'], 'finish':choice['finish_reason'],
'probabilities':probabilities, 'text_sha256':hashlib.sha256(str(msg.get('content') or '').encode()).hexdigest(),
'total_s':time.monotonic()-started}
else:
summary = stream_summary(response, started)
usage = record(summary['usage'])
cached = record(usage.get('prompt_tokens_details'))['cached_tokens']
require(usage.get('prompt_tokens') == target and cached == 0, 'exact-size/cold usage failure')
require(number(usage['completion_tokens']) > 0 and summary.get('finish') in ('stop','length'), 'unfinished probe')
if force_length:
require(usage.get('completion_tokens') == budget and summary.get('finish') == 'length', 'near-cap/warmup length finish failure')
row = {'window_id':str(output.parent.resolve()), 'type':'request', 'kind':kind, 'rep':rep, 'target_ctx':target, 'cap':CAP,
'prompt_sha256':hashlib.sha256(prompt.encode()).hexdigest(),
'cache_salt_sha256':hashlib.sha256(salt.encode()).hexdigest(), 'corpus_sha256':hashes,
'cached_tokens':cached, 'uncached_prompt_tokens':target,
'sampling':{'temperature':0 if numeric else 1, 'top_p':1, 'seed':42, 'priority':10, 'max_tokens':budget},
**summary}
row = screen_record(row,screen)
with output.open('x') as handle:
json.dump(row, handle, allow_nan=False)
handle.write('\n')
event( {'event':'completed', 'id':request_id, 'time':time.time()})
return row
except Exception as exc:
event( {'event':'failed', 'id':request_id, 'error_class':type(exc).__name__, 'time':time.time()})
raise
def main() -> None:
ap = argparse.ArgumentParser(description=__doc__)
ap.add_argument('--target', type=int, required=True)
ap.add_argument('--budget', type=int, required=True)
ap.add_argument('--salt', required=True)
ap.add_argument('--output', type=Path, required=True)
ap.add_argument('--ledger', type=Path, required=True)
ap.add_argument('--deadline', type=float, required=True)
ap.add_argument('--data-dir', type=Path, required=True)
ap.add_argument('--screen', action='store_true')
ap.add_argument('--numeric', action='store_true')
ap.add_argument('--needle', action='store_true')
ap.add_argument('--force-length', action='store_true')
ap.add_argument('--rep', type=int, default=0)
ap.add_argument('--kind', default='diagnostic')
args = ap.parse_args()
if args.needle:
needle(args.target,args.salt,args.output,args.ledger,args.deadline,args.data_dir,screen=args.screen)
else:
execute(args.target, args.budget, args.salt, args.output, args.ledger, args.deadline, args.data_dir,
numeric=args.numeric, force_length=args.force_length, rep=args.rep, kind=args.kind, screen=args.screen)
if __name__ == '__main__':
main()
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