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Multiple improvements: #16

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merged 16 commits into from
Mar 13, 2023
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marcuswestin
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@marcuswestin marcuswestin commented Mar 13, 2023

  • Make dalai llama script idempotent:
    1: Don't re-download files that have already been downloaded
    2: Don't re-create models that have already been created
  • Allow for specifying which model to run in the UI
    • show an error message if the chosen model hasn't been downloaded and created yet
    • and show instructions for how to do download and create it if it doesn't exist (dalai llama <MODEL>)
  • Better log statements during download, model creation, and request serving
  • Create yarn scripts yarn dalai:llama <optional MODEL> and yarn start
  • Put the dalai llama directory in cwd by default, and allow for specifying where to put it with the LLAMA_DIR environment variable
  • Remove express url encoded warning message on server startup by making the extended option explicit (see https://github.com/expressjs/body-parser#extended for more info)
  • Allow for the server to optionally end with a "\n\n" message when the response is finished
  • Add ./dalai script in dalai repo to allow for easier local development testing of the CLI
  • Exit with success code 0 when dalai llama succeeds

@fermigas
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I've confirmed that download and quantization fixes work. The UI does, too.
I'm running 65B!

@marcuswestin
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Thanks @fermigas

This patch should be a meaningful improvement for everyone that is playing with this I think

@cocktailpeanut would love a code review and merge, or pointers for what to update :)

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I manually made the changes I reviewed below and tested them.
Downloads and quantization code changes work fine. Approved.
All 4 models work with the new UI changes. Approved.

I did not apply the changes in the files I haven't marked "viewed".

@@ -9,14 +9,14 @@ const start = (port) => {
dalai.http(httpServer)
app.use(express.static(path.resolve(__dirname, 'public')))
app.use(express.json());
app.use(express.urlencoded());
app.use(express.urlencoded({ extended: true }));

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Good. Fixes bug where server emits this line on stating:

body-parser deprecated undefined extended: provide extended option .npm/_npx/3c737cbb02d79cc9/node_modules/dalai/bin/web/index.js:12:19

Comment on lines +33 to +39
<select id="model">
<!-- options: 7B, 13B, 30B, 65B -->
<option value="7B">7B</option>
<option value="13B">13B</option>
<option value="30B">30B</option>
<option value="65B">65B</option>
</select>

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Really useful, and works fine.
Might consider adding a text input box for # of threads, and temperature too. I'm finding the model pretty sensitive to temperature settings.

console.log(`Skip file download, it already exists: ${file}`)
continue;
}

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Very useful. The 6th parameter file of the 65B download kept failing for me. I had to pull it from a torrent to get it to work, then had to do the quantization manually. This and the quantization file check below improve error recover a lot.

@@ -117,12 +132,19 @@ class Dalai {
}
}
async query(req, cb) {
console.log(`> query:`, req)

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Very useful. You might consider logging the model's output to the console, too.

Comment on lines +218 to +224
const outputFile1 = `./models/${model}/ggml-model-f16.bin${suffix}`
const outputFile2 = `./models/${model}/ggml-model-q4_0.bin${suffix}`
if (fs.existsSync(path.resolve(this.home, outputFile1)) && fs.existsSync(path.resolve(this.home, outputFile2))) {
console.log(`Skip quantization, files already exists: ${outputFile1} and ${outputFile2}}`)
continue
}
await this.exec(`./quantize ${outputFile1} ${outputFile2} 2`, this.home)

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As mentioned above, this is a big improvement.

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LGTM

@marcuswestin
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👍 🙏

mirroredkube pushed a commit to mirroredkube/dalai that referenced this pull request Mar 26, 2023
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4 participants