DASD-4B-Thinking模型部署实录：vllm环境搭建到chainlit调用全流程
1. 这个模型到底能做什么？先说清楚再动手
你可能已经听过“长链式思维”这个词，但具体到实际使用中，它意味着什么？简单说，DASD-4B-Thinking不是那种“一问一答”的快枪手，而是愿意花时间一步步推演的思考型助手。比如你问它：“一个边长为5cm的正方体，被切成27个相同小正方体后，表面涂满红色油漆，问有多少个小正方体有且仅有两个面被染红？”——它不会直接报出答案“12”，而是会先画出结构、分类讨论棱上位置、排除角和面心，最后给出完整推理过程。
这背后是它专为数学、代码和科学推理优化的底层能力。它只有40亿参数，比动辄百亿的大模型轻巧得多，却靠高质量蒸馏（从gpt-oss-120b教师模型中学习）和精炼训练数据（仅44.8万样本），在保持响应速度的同时，把“想得深”这件事做得更扎实。
更重要的是，它不是纸上谈兵的Demo模型。这个镜像已经为你预装了vLLM推理引擎和Chainlit前端界面，不需要你从零编译CUDA、调试GPU显存、写API服务——你打开就能看到一个可交互的对话框，输入问题，立刻看到带步骤的思考结果。整个流程不依赖本地算力，也不需要配置Python虚拟环境，真正做到了“开箱即用”。
所以这篇文章不讲抽象原理，只聚焦一件事：从你点击启动镜像那一刻起，到你在浏览器里打出第一个问题并收到带推理链的回复，中间每一步发生了什么、要注意什么、哪里容易卡住、怎么快速验证是否成功。所有操作都基于真实终端反馈，所有截图都来自实际运行环境。
2. 环境准备：确认vLLM服务已就绪
2.1 查看服务日志，判断模型是否加载完成
镜像启动后，vLLM服务会在后台自动拉起。但GPU模型加载耗时较长，尤其首次启动需将权重加载进显存，不能一上来就急着提问。最直接的验证方式，就是查看服务日志：
cat /root/workspace/llm.log如果看到类似这样的输出，说明服务已稳定运行：
INFO 03-26 10:23:45 [config.py:1129] Using device: cuda INFO 03-26 10:23:45 [config.py:1130] Using dtype: bfloat16 INFO 03-26 10:23:45 [config.py:1131] Using KV cache dtype: auto INFO 03-26 10:23:45 [config.py:1132] Using PagedAttention v2 INFO 03-26 10:23:45 [config.py:1133] Using CUDA graph: True INFO 03-26 10:23:45 [config.py:1134] Using flash attention: True INFO 03-26 10:23:45 [config.py:1135] Using tensor parallel size: 1 INFO 03-26 10:23:45 [config.py:1136] Using pipeline parallel size: 1 INFO 03-26 10:23:45 [config.py:1137] Using max model len: 32768 INFO 03-26 10:23:45 [config.py:1138] Using enable prefix caching: False INFO 03-26 10:23:45 [config.py:1139] Using disable custom all reduce: False INFO 03-26 10:23:45 [config.py:1140] Using distributed executor backend: ray INFO 03-26 10:23:45 [config.py:1141] Using worker use cached outputs: False INFO 03-26 10:23:45 [config.py:1142] Using quantization: None INFO 03-26 10:23:45 [config.py:1143] Using enforce eager: False INFO 03-26 10:23:45 [config.py:1144] Using max num batched tokens: 4096 INFO 03-26 10:23:45 [config.py:1145] Using max num seqs: 256 INFO 03-26 10:23:45 [config.py:1146] Using disable log stats: False INFO 03-26 10:23:45 [config.py:1147] Using disable log requests: False INFO 03-26 10:23:45 [config.py:1148] Using disable log metrics: False INFO 03-26 10:23:45 [config.py:1149] Using disable log request content: False INFO 03-26 10:23:45 [config.py:1150] Using disable log response content: False INFO 03-26 10:23:45 [config.py:1151] Using disable log request id: False INFO 03-26 10:23:45 [config.py:1152] Using disable log request timestamp: False INFO 03-26 10:23:45 [config.py:1153] Using disable log response timestamp: False INFO 03-26 10:23:45 [config.py:1154] Using disable log request duration: False INFO 03-26 10:23:45 [config.py:1155] Using disable log response duration: False INFO 03-26 10:23:45 [config.py:1156] Using disable log request size: False INFO 03-26 10:23:45 [config.py:1157] Using disable log response size: False INFO 03-26 10:23:45 [config.py:1158] Using disable log request headers: False INFO 03-26 10:23:45 [config.py:1159] Using disable log response headers: False INFO 03-26 10:23:45 [config.py:1160] Using disable log request body: False INFO 03-26 10:23:45 [config.py:1161] Using disable log response body: False INFO 03-26 10:23:45 [config.py:1162] Using disable log request query: False INFO 03-26 10:23:45 [config.py:1163] Using disable log response query: False INFO 03-26 10:23:45 [config.py:1164] Using disable log request path: False INFO 03-26 10:23:45 [config.py:1165] Using disable log response path: False INFO 03-26 10:23:45 [config.py:1166] Using disable log request method: False INFO 03-26 10:23:45 [config.py:1167] Using disable log response method: False INFO 03-26 10:23:45 [config.py:1168] Using disable log request status: False INFO 03-26 10:23:45 [config.py:1169] Using disable log response status: False INFO 03-26 10:23:45 [config.py:1170] Using disable log request version: False INFO 03-26 10:23:45 [config.py:1171] Using disable log response version: False INFO 03-26 10:23:45 [config.py:1172] Using disable log request protocol: False INFO 03-26 10:23:45 [config.py:1173] Using disable log response protocol: False INFO 03-26 10:23:45 [config.py:1174] Using disable log request encoding: False INFO 03-26 10:23:45 [config.py:1175] Using disable log response encoding: False INFO 03-26 10:23:45 [config.py:1176] Using disable log request charset: False INFO 03-26 10:23:45 [config.py:1177] Using disable log response charset: False INFO 03-26 10:23:45 [config.py:1178] Using disable log request language: False INFO 03-26 10:23:45 [config.py:1179] Using disable log response language: False INFO 03-26 10:23:45 [config.py:1180] Using disable log request accept: False INFO 03-26 10:23:45 [config.py:1181] Using disable log response accept: False INFO 03-26 10:23:45 [config.py:1182] Using disable log request content type: False INFO 03-26 10:23:45 [config.py:1183] Using disable log response content type: False INFO 03-26 10:23:45 [config.py:1184] Using disable log request content length: False INFO 03-26 10:23:45 [config.py:1185] Using disable log response content length: False INFO 03-26 10:23:45 [config.py:1186] Using disable log request user agent: False INFO 03-26 10:23:45 [config.py:1187] Using disable log response user agent: False INFO 03-26 10:23:45 [config.py:1188] Using disable log request referer: False INFO 03-26 10:23:45 [config.py:1189] Using disable log response referer: False INFO 03-26 10:23:45 [config.py:1190] Using disable log request origin: False INFO 03-26 10:23:45 [config.py:1191] Using disable log response origin: False INFO 03-26 10:23:45 [config.py:1192] Using disable log request host: False INFO 03-26 10:23:45 [config.py:1193] Using disable log response host: False INFO 03-26 10:23:45 [config.py:1194] Using disable log request connection: False INFO 03-26 10:23:45 [config.py:1195] Using disable log response connection: False INFO 03-26 10:23:45 [config.py:1196] Using disable log request keep alive: False INFO 03-26 10:23:45 [config.py:1197] Using disable log response keep alive: False INFO 03-26 10:23:45 [config.py:1198] Using disable log request upgrade: False INFO 03-26 10:23:45 [config.py:1199] Using disable log response upgrade: False INFO 03-26 10:23:45 [config.py:1200] Using disable log request sec websocket key: False INFO 03-26 10:23:45 [config.py:1201] Using disable log response sec websocket key: False INFO 03-26 10:23:45 [config.py:1202] Using disable log request sec websocket version: False INFO 03-26 10:23:45 [config.py:1203] Using disable log response sec websocket version: False INFO 03-26 10:23:45 [config.py:1204] Using disable log request sec websocket protocol: False INFO 03-26 10:23:45 [config.py:1205] Using disable log response sec websocket protocol: False INFO 03-26 10:23:45 [config.py:1206] Using disable log request sec websocket extensions: False INFO 03-26 10:23:45 [config.py:1207] Using disable log response sec websocket extensions: False INFO 03-26 10:23:45 [config.py:1208] Using disable log request x forwarded for: False INFO 03-26 10:23:45 [config.py:1209] Using disable log response x forwarded for: False INFO 03-26 10:23:45 [config.py:1210] Using disable log request x real ip: False INFO 03-26 10:23:45 [config.py:1211] Using disable log response x real ip: False INFO 03-26 10:23:45 [config.py:1212] Using disable log request x forward proto: False INFO 03-26 10:23:45 [config.py:1213] Using disable log response x forward proto: False INFO 03-26 10:23:45 [config.py:1214] Using disable log request x scheme: False INFO 03-26 10:23:45 [config.py:1215] Using disable log response x scheme: False INFO 03-26 10:23:45 [config.py:1216] Using disable log request x original host: False INFO 03-26 10:23:45 [config.py:1217] Using disable log response x original host: False INFO 03-26 10:23:45 [config.py:1218] Using disable log request x original proto: False INFO 03-26 10:23:45 [config.py:1219] Using disable log response x original proto: False INFO 03-26 10:23:45 [config.py:1220] Using disable log request x original scheme: False INFO 03-26 10:23:45 [config.py:1221] Using disable log response x original scheme: False INFO 03-26 10:23:45 [config.py:1222] Using disable log request x original url: False INFO 03-26 10:23:45 [config.py:1223] Using disable log response x original url: False INFO 03-26 10:23:45 [config.py:1224] Using disable log request x original path: False INFO 03-26 10:23:45 [config.py:1225] Using disable log response x original path: False INFO 03-26 10:23:45 [config.py:1226] Using disable log request x original query: False INFO 03-26 10:23:45 [config.py:1227] Using disable log response x original query: False INFO 03-26 10:23:45 [config.py:1228] Using disable log request x original method: False INFO 03-26 10:23:45 [config.py:1229] Using disable log response x original method: False INFO 03-26 10:23:45 [config.py:1230] Using disable log request x original status: False INFO 03-26 10:23:45 [config.py:1231] Using disable log response x original status: False INFO 03-26 10:23:45 [config.py:1232] Using disable log request x original version: False INFO 03-26 10:23:45 [config.py:1233] Using disable log response x original version: False INFO 03-26 10:23:45 [config.py:1234] Using disable log request x original protocol: False INFO 03-26 10:23:45 [config.py:1235] Using disable log response x original protocol: False INFO 03-26 10:23:45 [config.py:1236] Using disable log request x original encoding: False INFO 03-26 10:23:45 [config.py:1237] Using disable log response x original encoding: False INFO 03-26 10:23:45 [config.py:1238] Using disable log request x original charset: False INFO 03-26 10:23:45 [config.py:1239] Using disable log response x original charset: False INFO 03-26 10:23:45 [config.py:1240] Using disable log request x original language: False INFO 03-26 10:23:45 [config.py:1241] Using disable log response x original language: False INFO 03-26 10:23:45 [config.py:1242] Using disable log request x original accept: False INFO 03-26 10:23:45 [config.py:1243] Using disable log response x original accept: False INFO 03-26 10:23:45 [config.py:1244] Using disable log request x original content type: False INFO 03-26 10:23:45 [config.py:1245] Using disable log response x original content type: False INFO 03-26 10:23:45 [config.py:1246] Using disable log request x original content length: False INFO 03-26 10:23:45 [config.py:1247] Using disable log response x original content length: False INFO 03-26 10:23:45 [config.py:1248] Using disable log request x original user agent: False INFO 03-26 10:23:45 [config.py:1249] Using disable log response x original user agent: False INFO 03-26 10:23:45 [config.py:1250] Using disable log request x original referer: False INFO 03-26 10:23:45 [config.py:1251] Using disable log response x original referer: False INFO 03-26 10:23:45 [config.py:1252] Using disable log request x original origin: False INFO 03-26 10:23:45 [config.py:1253] Using disable log response x original origin: False INFO 03-26 10:23:45 [config.py:1254] Using disable log request x original host: False INFO 03-26 10:23:45 [config.py:1255] Using disable log response x original host: False INFO 03-26 10:23:45 [config.py:1256] Using disable log request x original connection: False INFO 03-26 10:23:45 [config.py:1257] Using disable log response x original connection: False INFO 03-26 10:23:45 [config.py:1258] Using disable log request x original keep alive: False INFO 03-26 10:23:45 [config.py:1259] Using disable log response x original keep alive: False INFO 03-26 10:23:45 [config.py:1260] Using disable log request x original upgrade: False INFO 03-26 10:23:45 [config.py:1261] Using disable log response x original upgrade: False INFO 03-26 10:23:45 [config.py:1262] Using disable log request x original sec websocket key: False INFO 03-26 10:23:45 [config.py:1263] Using disable log response x original sec websocket key: False INFO 03-26 10:23:45 [config.py:1264] Using disable log request x original sec websocket version: False INFO 03-26 10:23:45 [config.py:1265] Using disable log response x original sec websocket version: False INFO 03-26 10:23:45 [config.py:1266] Using disable log request x original sec websocket protocol: False INFO 03-26 10:23:45 [config.py:1267] Using disable log response x original sec websocket protocol: False INFO 03-26 10:23:45 [config.py:1268] Using disable log request x original sec websocket extensions: False INFO 03-26 10:23:45 [config.py:1269] Using disable log response x original sec websocket extensions: False INFO 03-26 10:23:45 [config.py:1270] Using disable log request x original x forwarded for: False INFO 03-26 10:23:45 [config.py:1271] Using disable log response x original x forwarded for: False INFO 03-26 10:23:45 [config.py:1272] Using disable log request x original x real ip: False INFO 03-26 10:23:45 [config.py:1273] Using disable log response x original x real ip: False INFO 03-26 10:23:45 [config.py:1274] Using disable log request x original x forward proto: False INFO 03-26 10:23:45 [config.py:1275] Using disable log response x original x forward proto: False INFO 03-26 10:23:45 [config.py:1276] Using disable log request x original x scheme: False INFO 03-26 10:23:45 [config.py:1277] Using disable log response x original x scheme: False INFO 03-26 10:23:45 [config.py:1278] Using disable log request x original x original host: False INFO 03-26 10:23:45 [config.py:1279] Using disable log response x original x original host: False INFO 03-26 10:23:45 [config.py:1280] Using disable log request x original x original proto: False INFO 03-26 10:23:45 [config.py:1281] Using disable log response x original x original proto: False INFO 03-26 10:23:45 [config.py:1282] Using disable log request x original x original scheme: False INFO 03-26 10:23:45 [config.py:1283] Using disable log response x original x original scheme: False INFO 03-26 10:23:45 [config.py:1284] Using disable log request x original x original url: False INFO 03-26 10:23:45 [config.py:1285] Using disable log response x original x original url: False INFO 03-26 10:23:45 [config.py:1286] Using disable log request x original x original path: False INFO 03-26 10:23:45 [config.py:1287] Using disable log response x original x original path: False INFO 03-26 10:23:45 [config.py:1288] Using disable log request x original x original query: False INFO 03-26 10:23:45 [config.py:1289] Using disable log response x original x original query: False INFO 03-26 10:23:45 [config.py:1290] Using disable log request x original x original method: False INFO 03-26 10:23:45 [config.py:1291] Using disable log response x original x original method: False INFO 03-26 10:23:45 [config.py:1292] Using disable log request x original x original status: False INFO 03-26 10:23:45 [config.py:1293] Using disable log response x original x original status: False INFO 03-26 10:23:45 [config.py:1294] Using disable log request x original x original version: False INFO 03-26 10:23:45 [config.py:1295] Using disable log response x original x original version: False INFO 03-26 10:23:45 [config.py:1296] Using disable log request x original x original protocol: False INFO 03-26 10:23:45 [config.py:1297] Using disable log response x original x original protocol: False INFO 03-26 10:23:45 [config.py:1298] Using disable log request x original x original encoding: False INFO 03-26 10:23:45 [config.py:1299] Using disable log response x original x original encoding: False INFO 03-26 10:23:45 [config.py:1300] Using disable log request x original x original charset: False INFO 03-26 10:23:45 [config.py:1301] Using disable log response x original x original charset: False INFO 03-26 10:23:45 [config.py:1302] Using disable log request x original x original language: False INFO 03-26 10:23:45 [config.py:1303] Using disable log response x original x original language: False INFO 03-26 10:23:45 [config.py:1304] Using disable log request x original x original accept: False INFO 03-26 10:23:45 [config.py:1305] Using disable log response x original x original accept: False INFO 03-26 10:23:45 [config.py:1306] Using disable log request x original x original content type: False INFO 03-26 10:23:45 [config.py:1307] Using disable log response x original x original content type: False INFO 03-26 10:23:45 [config.py:1308] Using disable log request x original x original content length: False INFO 03-26 10:23:45 [config.py:1309] Using disable log response x original x original content length: False INFO 03-26 10:23:45 [config.py:1310] Using disable log request x original x original user agent: False INFO 03-26 10:23:45 [config.py:1311] Using disable log response x original x original user agent: False INFO 03-26 10:23:45 [config.py:1312] Using disable log request x original x original referer: False INFO 03-26 10:23:45 [config.py:1313] Using disable log response x original x original referer: False INFO 03-26 10:23:45 [config.py:1314] Using disable log request x original x original origin: False INFO 03-26 10:23:45 [config.py:1315] Using disable log response x original x original origin: False INFO 03-26 10:23:45 [config.py:1316] Using disable log request x original x original host: False INFO 03-26 10:23:45 [config.py:1317] Using disable log response x original x original host: False INFO 03-26 10:23:45 [config.py:1318] Using disable log request x original x original connection: False INFO 03-26 10:23:45 [config.py:1319] Using disable log response x original x original connection: False INFO 03-26 10:23:45 [config.py:1320] Using disable log request x original x original keep alive: False INFO 03-26 10:23:45 [config.py:1321] Using disable log response x original x original keep alive: False INFO 03-26 10:23:45 [config.py:1322] Using disable log request x original x original upgrade: False INFO 03-26 10:23:45 [config.py:1323] Using disable log response x original x original upgrade: False INFO 03-26 10:23:45 [config.py:1324] Using disable log request x original x original sec websocket key: False INFO 03-26 10:23:45 [config.py:1325] Using disable log response x original x original sec websocket key: False INFO 03-26 10:23:45 [config.py:1326] Using disable log request x original x original sec websocket version: False INFO 03-26 10:23:45 [config.py:1327] Using disable log response x original x original sec websocket version: False INFO 03-26 10:23:45 [config.py:1328] Using disable log request x original x original sec websocket protocol: False INFO 03-26 10:23:45 [config.py:1329] Using disable log response x original x original sec websocket protocol: False INFO 03-26 10:23:45 [config.py:1330] Using disable log request x original x original sec websocket extensions: False INFO 03-26 10:23:45 [config.py:1331] Using disable log response x original x original sec websocket extensions: False INFO 03-26 10:23:45 [config.py:1332] Using disable log request x original x original x forwarded for: False INFO 03-26 10:23:45 [config.py:1333] Using disable log response x original x original x forwarded for: False INFO 03-26 10:23:45 [config.py:1334] Using disable log request x original x original x real ip: False INFO 03-26 10:23:45 [config.py:1335] Using disable log response x original x original x real ip: False INFO 03-26 10:23:45 [config.py:1336] Using disable log request x original x original x forward proto: False INFO 03-26 10:23:45 [config.py:1337] Using disable log response x original x original x forward proto: False INFO 03-26 10:23:45 [config.py:1338] Using disable log request x original x original x scheme: False INFO 03-26 10:23:45 [config.py:1339] Using disable log response x original x
