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Vicuna-HTTP-Endpoint.json
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Vicuna-HTTP-Endpoint.json
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[
{
"id": "61c98da67098491c",
"type": "comment",
"z": "50ed45470ea01d88",
"name": "Vicuna",
"info": "",
"x": 730,
"y": 640,
"wires": []
},
{
"id": "312187206f05e4d5",
"type": "http in",
"z": "50ed45470ea01d88",
"name": "",
"url": "vicuna",
"method": "get",
"upload": false,
"swaggerDoc": "",
"x": 740,
"y": 700,
"wires": [
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"8c556d0df5688e61"
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},
{
"id": "369aa83f860d0a67",
"type": "function",
"z": "50ed45470ea01d88",
"name": "Vicuna",
"func": "(async () => {\n let Prompt = (msg.payload || '').trim()\n if (Prompt === '') {\n msg.payload = 'empty or missing prompt'\n node.send([null,msg])\n return\n }\n \n/**** retrieve settings or provide defaults ****/\n\n let Seed = parseInt(msg.seed,10)\n if (isNaN(Seed)) { Seed = -1 }\n \n let Threads = parseInt(msg.threads,10)\n if (isNaN(Threads)) { Threads = 4 }\n Threads = Math.max(1,Threads)\n Threads = Math.min(Threads,Math.max(1,os.cpus().length))\n\n let Context = parseInt(msg.context,10)\n if (isNaN(Context)) { Context = 512 }\n Context = Math.max(0,Math.min(Context,2048))\n\n let keep = parseInt(msg.keep,10)\n if (isNaN(keep)) { keep = 0 }\n keep = Math.max(-1,Math.min(keep,2048))\n\n let Prediction = parseInt(msg.predict,10)\n if (isNaN(Prediction)) { Prediction = 128 }\n Prediction = Math.max(1,Math.min(Prediction,2048)) // no -1!\n\n let topK = parseInt(msg.topk,10)\n if (isNaN(topK)) { topK = 40 }\n topK = Math.max(1,Math.min(topK,100))\n\n let topP = parseFloat(msg.topp)\n if (isNaN(topP)) { topP = 0.9 }\n topP = Math.max(0.1,Math.min(topP,1.0))\n\n let Temperature = parseFloat(msg.temperature)\n if (isNaN(Temperature)) { Temperature = 0.8 }\n Temperature = Math.max(0.0,Math.min(Temperature,1.0))\n\n let Batches = parseInt(msg.batches,10)\n if (isNaN(Batches)) { Batches = 8 }\n Batches = Math.max(1,Math.min(Batches,100))\n\n Prompt = Prompt.replace(/\"/g,'\\\\\"')\n\n/**** combine all these settings into a command ****/\n\n let Command = ( 'cd ai && ' +\n './llama --model ././ggml-vicuna-7b-1.1-q4_1.bin --mlock ' +\n ' --ctx_size ' + Context + ' --keep ' + keep +\n ' --n_predict ' + Prediction + \n ' --threads ' + Threads + ' --batch_size ' + Batches +\n ' --seed ' + Seed + ' --temp ' + Temperature +\n ' --top_k ' + topK + ' --top_p ' + topP +\n ' --reverse-prompt \"<|endoftext|>\"' + // experimental\n ' --prompt \"' + Prompt + '\"'\n )\n\n/**** extract actual reponse from command output ****/\n\n function ResponseFrom (Text) {\n let HeaderLength = Text.indexOf('\\n\\n\\n')\n Text = Text.slice(HeaderLength + 1)\n\n let TrailerIndex = Text.indexOf('<|endoftext|>')\n if (TrailerIndex < 0) {\n TrailerIndex = Text.indexOf('\\nllama_print_timings')\n }\n Text = Text.slice(0,TrailerIndex)\n\n return Text\n }\n\n/**** now infer a response from the given prompt ****/\n \n let { stdout,stderr, StatusCode,Signal } = child_process.spawnSync(\n 'bash', [], { input:Command }\n )\n \n stdout = stdout.toString().trim()\n stderr = stderr.toString().trim()\n\n switch (true) {\n case (StatusCode == null):\n case (StatusCode === 0):\n msg.statusCode = (stdout === '' ? 204 : 200)\n msg.payload = ResponseFrom(stdout)\n break\n default:\n msg.statusCode = 500 + StatusCode\n msg.payload = (stdout === '' ? '' : '>>>> stdout >>>>\\n' + stdout + '\\n') +\n '>>>> stderr >>>>\\n' + stderr +\n (Signal == null ? '' : '\\n' + Signal)\n break\n }\n\n node.send([msg,null])\n})()\n",
"outputs": 2,
"noerr": 0,
"initialize": "",
"finalize": "",
"libs": [
{
"var": "os",
"module": "os"
},
{
"var": "child_process",
"module": "child_process"
}
],
"x": 960,
"y": 760,
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},
{
"id": "19992ff803d41b59",
"type": "debug",
"z": "50ed45470ea01d88",
"name": "",
"active": true,
"tosidebar": true,
"console": false,
"tostatus": false,
"complete": "'Prompt: \"' & msg.payload & '\"'",
"targetType": "jsonata",
"statusVal": "",
"statusType": "auto",
"x": 820,
"y": 820,
"wires": []
},
{
"id": "c0390111b4fe8450",
"type": "http response",
"z": "50ed45470ea01d88",
"name": "",
"statusCode": "",
"headers": {},
"x": 1190,
"y": 700,
"wires": []
},
{
"id": "969b07fc3fb80545",
"type": "change",
"z": "50ed45470ea01d88",
"name": "400",
"rules": [
{
"t": "set",
"p": "statusCode",
"pt": "msg",
"to": "400",
"tot": "num"
}
],
"action": "",
"property": "",
"from": "",
"to": "",
"reg": false,
"x": 1170,
"y": 800,
"wires": [
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},
{
"id": "0b67ec03e21a695e",
"type": "change",
"z": "50ed45470ea01d88",
"name": "200",
"rules": [
{
"t": "set",
"p": "statusCode",
"pt": "msg",
"to": "200",
"tot": "num"
}
],
"action": "",
"property": "",
"from": "",
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"reg": false,
"x": 1170,
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"wires": [
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{
"id": "dde286166cd27570",
"type": "debug",
"z": "50ed45470ea01d88",
"name": "",
"active": true,
"tosidebar": true,
"console": false,
"tostatus": false,
"complete": "'Response: \"' & msg.payload & '\"'",
"targetType": "jsonata",
"statusVal": "",
"statusType": "auto",
"x": 1020,
"y": 840,
"wires": []
},
{
"id": "67bf0de8cbb057c2",
"type": "comment",
"z": "50ed45470ea01d88",
"name": "cwd = server installation folder",
"info": "",
"x": 1110,
"y": 640,
"wires": []
},
{
"id": "8c556d0df5688e61",
"type": "change",
"z": "50ed45470ea01d88",
"name": "parse query",
"rules": [
{
"t": "set",
"p": "payload",
"pt": "msg",
"to": "req.query.prompt",
"tot": "msg"
},
{
"t": "set",
"p": "seed",
"pt": "msg",
"to": "req.query.seed",
"tot": "msg"
},
{
"t": "set",
"p": "threads",
"pt": "msg",
"to": "req.query.threads",
"tot": "msg"
},
{
"t": "set",
"p": "predict",
"pt": "msg",
"to": "req.query.predict",
"tot": "msg"
},
{
"t": "set",
"p": "topk",
"pt": "msg",
"to": "req.query.topk",
"tot": "msg"
},
{
"t": "set",
"p": "topp",
"pt": "msg",
"to": "req.query.topp",
"tot": "msg"
},
{
"t": "set",
"p": "temperature",
"pt": "msg",
"to": "req.query.temperature",
"tot": "msg"
},
{
"t": "set",
"p": "batches",
"pt": "msg",
"to": "req.query.batches",
"tot": "msg"
},
{
"t": "set",
"p": "model",
"pt": "msg",
"to": "req.query.model",
"tot": "msg"
},
{
"t": "set",
"p": "context",
"pt": "msg",
"to": "req.query.context",
"tot": "msg"
},
{
"t": "set",
"p": "keep",
"pt": "msg",
"to": "req.query.keep",
"tot": "msg"
}
],
"action": "",
"property": "",
"from": "",
"to": "",
"reg": false,
"x": 790,
"y": 760,
"wires": [
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"369aa83f860d0a67",
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]
]
}
]