Files
hooved 304afe0d55 tinychat in browser, Part 3: browser app (#9276)
* load llama3-1B to WEBGPU device

* include compile script for loading llama3 to WEBGPU

* parametrize max_context in build_transformer fxn

* jit_model with two different args sets

* compile for webgpu, split weights

* load model weight parts in browser

* export all tensors from initialized transformer

* run transformer inference in browser

* enable tiktoken with llama bpe in browser

* count total tokens on client with tiktoken.js

* full client-side chat streaming, eliminate server

* revert change that enabled jitting with 2 argsets

* llama without Variable or cache_kv, for webgpu

* have client use mask tokens / whole context

* cleanup staged weights

* add tiktoken.js build script, README

* export CLANG for Q6_k to float32 decompression

* fix and test exported CLANG code for Q6_k to fp32

* revert changes to jit and export_model

* isolate clang export

* test Q6_K to float32 decompression in browser

* gguf_load now also returns t_infos and data_start

* prepare llama-1B Q6_K gguf chunks for browser

* cache and decompress quantized llama in browser

* enable separate deployment of large files

* fix kv cache and symbolic with llama wgpu

* eliminate browser lag during decompression

* hash metadata and weight chunks

* delete obsolete indexeddb cache to free disk

* add progress bar, track model download/decompress

* refactor progress callback

* skip buffer hash verification for speed

* Display progress for entire loading scope

* Report page load errors to user

* actually display errors

* skip prompt tokens already seen by model

* skip prefilling with last assistant message tokens

* on page load tell user if webgpu not enabled

* push deployed URL root to window.history

* make note of bug sources with TODO items

* isolate bug in CLANG with BEAM=2

* remove clang_bug.py from diff

* decompress q6k to f32 on webgpu instead of clang

* remove unused code

* inter-weight decomp with larger wgpu kernels

* parallelize decompression submissions

* refactor dequantize scheduling

* add progress bar back

* fix bug

* temp fix for loading GGUF Q6_K to fp16 not fp32

* fix rendering of exported CLANG

* remove weight casts, sketch js functions for clang

* get symbolic vars from jit_cache for model export

* include symbolic vars in exported CLANG

* render js for clang transformer

* toggle clang/webgpu deployment; refactor decomp

* compile and render clang Q6_K->fp16 and int8 quant

* fix rendered clang for abs(fp16), to work in wasm

* simplify clang js wrapping

* run compiled clang in worker

* prepare llama weights in workers, q6k to int8/fp16

* tinychat on clang in browser, f32/int8 weights

* move wasm inference to (now flexible) worker

* don't load redundant embeddings

* modest wasm perf gain with compile flags

* set default backend, enable backend choice/backup

* render symbolic vars in exported WEBGPU

* quantize webgpu llama to int8/f32

* improve UX arising from rendered WEBGPU

* clean up webgpu launch

* new weights split: smaller chunks, tinygrad quant.

* switch webgpu inference to int8 quant

* remove unneeded clang decompression

* eliminate unneeded kv cache transfer to wasm

* use 1 worker for simplified clang decompression

* display launch errors

* refactor: stream load weight chunks to WebGPU

* show loading chunk completion

* quantize embeddings to int8

* test float16 as input for quantization

* webgpu: use f16 source, int8 embed, eliminate q6k

* simplify split weights prep: all from state_dict

* revert change to nn.state.gguf_load

* remove unneeded decompression from webgpu client

* remove unneeded code

* decrease dl chunks from 47 to 16 MiB

* improve stability of webgpu loading on mobile

* autodetect mobile, improve load stability

* refactor: progress closure

* refactor: one unified progress bar

* remove unneeded code

* revert changes to tinygrad core library

* enforce ios18.3 nerfed max buf size

* BEAM=3 webgpu

* cache integrity, mobile save throttling

* improve mobile UX - no autozoom on prompt box

* clang: int8 from f16, remove q6k

* reduce concurrent dls on mobile to 2 for stability

* refactor: wasm backend with stream loading

* prevent race between wasm load and indexedb save

* split wasm kernels into separate modules

* js wrapper for multiple wasm module inference

* revert multi-module wasm to single module

* make mobile wasm load more stable/fast

* refactor: copy weights into wasm without crashes

* fix bug in download queue; increase mobile dls

* refactor exported clang wrapper, split weights

* remove unnecessary code

* greatly improve int8 quant quality with rounding

* eliminate mobile throttling

* increase webgpu context to 4096 tokens

* export webgpu js functions

* enable separate hosted weights for mobile/pc

* enable prompt-thread switching during generation

* stop generation when max_context is reached

* show progress bar for prefill

* tell user if webgpu fails, while wasm loads

* make loading messages more concise

* update font

* revert changes to tinychat python app launch

* cleanup quantization, add scale_dtype param

* cleanup kv cache code

* cleanup compile code

* link tok_embeddings with output in webgpu export

* refactor: export_model webgpu: symbolic vars

* refactor: export_model weight loading

* forgot to commit export_model.py

* change CLANG to CPU

* deal with pylint incorrectly failing tests

* simplify f-strings for older CI python version

* fix pre-python3.12 parser errors

* [Int32Array] not Int32Array

* cleanup webgpu compile after refactor export_model

* refactor WASM export into export_model

* merge WebGPU/WASM compile scripts

* simplify max_contexts for local deployment

* fix parser issues and whitespace

* deduplicate variable defs for non-wasm clang export

* cleanup code

* cleanup compile scripts

* simplify wasm inference wrapping

* simplify webgpu symbolic vars export

* refactor: unify export of symbolic variables

* simplify WASM export

* simplify clang/wasm export

* update README and build scripts

* separate files for browser/python apps

* restore original python tinychat app files

* browser and python tinychats share assets

* minor cleanup

* isolate app layer diff

* add .gitignore for generated files

* validate CPU/WEBGPU models in python

* prevent infinite generation if validation fails

* check if exported weight files are unique

---------

Co-authored-by: George Hotz <72895+geohot@users.noreply.github.com>
2025-03-07 15:07:33 +08:00

183 lines
7.9 KiB
HTML

<!DOCTYPE html>
<head>
<title>tinychat</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="icon" href="../favicon.svg" type="image/svg+xml">
<script defer src="../assets/cdn.jsdelivr.net/npm/@alpine-collective/toolkit@1.0.2/dist/cdn.min.js"></script>
<script defer src="../assets/cdn.jsdelivr.net/npm/@alpinejs/intersect@3.x.x/dist/cdn.min.js"></script>
<script defer src="../assets/cdn.jsdelivr.net/npm/@alpinejs/focus@3.x.x/dist/cdn.min.js"></script>
<script defer src="../assets/unpkg.com/@marcreichel/alpine-autosize@1.3.x/dist/alpine-autosize.min.js"></script>
<script defer src="../assets/unpkg.com/alpinejs@3.x.x/dist/cdn.min.js"></script>
<script src="../assets/unpkg.com/dompurify@3.1.5/dist/purify.min.js"></script>
<script src="../assets/unpkg.com/marked@13.0.0/marked.min.js"></script>
<script src="../assets/unpkg.com/marked-highlight@2.1.2/lib/index.umd.js"></script>
<script src="../assets/unpkg.com/@highlightjs/cdn-assets@11.9.0/highlight.min.js"></script>
<script src="index.js"></script>
<link rel="stylesheet" href="../assets/cdn.jsdelivr.net/npm/purecss@3.0.0/build/base-min.css">
<link rel="stylesheet" href="../assets/cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.2/css/all.min.css"
integrity="sha512-SnH5WK+bZxgPHs44uWIX+LLJAJ9/2PkPKZ5QiAj6Ta86w+fsb2TkcmfRyVX3pBnMFcV7oQPJkl9QevSCWr3W6A=="
crossorigin="anonymous" referrerpolicy="no-referrer" />
<link rel="stylesheet" href="../assets/unpkg.com/@highlightjs/cdn-assets@11.9.0/styles/vs2015.min.css">
<link rel="stylesheet" href="index.css">
<link rel="stylesheet" href="../common.css">
</head>
<body>
<main x-data="state" x-init="console.log(endpoint)">
<div class="home centered" x-show="home === 0" x-transition x-effect="
$refs.inputForm.focus();
if (home === 1) setTimeout(() => home = 2, 100);
if (home === -1) setTimeout(() => home = 0, 100);
" @popstate.window="
if (home === 2) {
cancelGeneration = true;
if (maxContextReached) generating = false;
if (!generating) cstate = { time: null, messages: [] };
home = -1;
time_till_first = 0;
tokens_per_second = 0;
total_tokens = 0;
}
">
<h1 class="title megrim-regular">tinychat</h1>
<div class="histories-container-container">
<template x-if="histories.length">
<div class="histories-start"></div>
</template>
<div class="histories-container" x-intersect="
$el.scrollTo({ top: 0, behavior: 'smooth' });
">
<template x-for="_state in histories.toSorted((a, b) => b.time - a.time)">
<div x-data="{ otx: 0, trigger: 75 }" class="history" @click="
cstate = _state;
updateTotalTokens(cstate.messages);
home = 1;
// ensure that going back in history will go back to home
window.history.pushState({}, '', window.TINYCHAT_ROOT || '/');
" @touchstart="
otx = $event.changedTouches[0].clientX;
" @touchmove="
$el.style.setProperty('--tx', $event.changedTouches[0].clientX - otx);
$el.style.setProperty('--opacity', 1 - (Math.abs($event.changedTouches[0].clientX - otx) / trigger));
" @touchend="
if (Math.abs($event.changedTouches[0].clientX - otx) > trigger) removeHistory(_state);
$el.style.setProperty('--tx', 0);
$el.style.setProperty('--opacity', 1);
">
<h3 x-text="new Date(_state.time).toLocaleString()"></h3>
<p x-text="$truncate(_state.messages[0].content, 80)"></p>
<!-- delete button -->
<button class="history-delete-button" @click.stop="removeHistory(_state);">
<i class=" fas fa-trash"></i>
</button>
</div>
</template>
</div>
<template x-if="histories.length">
<div class="histories-end"></div>
</template>
</div>
</div>
<div x-ref="messages" class="messages" x-init="
$watch('cstate', value => {
$el.innerHTML = '';
value.messages.forEach(({ role, content }) => {
const div = document.createElement('div');
div.className = `message message-role-${role}`;
try {
div.innerHTML = DOMPurify.sanitize(marked.parse(content));
} catch (e) {
console.log(content);
console.error(e);
}
// add a clipboard button to all code blocks
const codeBlocks = div.querySelectorAll('.hljs');
codeBlocks.forEach(codeBlock => {
const button = document.createElement('button');
button.className = 'clipboard-button';
button.innerHTML = '<i class=\'fas fa-clipboard\'></i>';
button.onclick = () => {
// navigator.clipboard.writeText(codeBlock.textContent);
const range = document.createRange();
range.setStartBefore(codeBlock);
range.setEndAfter(codeBlock);
window.getSelection()?.removeAllRanges();
window.getSelection()?.addRange(range);
document.execCommand('copy');
window.getSelection()?.removeAllRanges();
button.innerHTML = '<i class=\'fas fa-check\'></i>';
setTimeout(() => button.innerHTML = '<i class=\'fas fa-clipboard\'></i>', 1000);
};
codeBlock.appendChild(button);
});
$el.appendChild(div);
});
$el.scrollTo({ top: $el.scrollHeight, behavior: 'smooth' });
});
" x-intersect="
$el.scrollTo({ top: $el.scrollHeight, behavior: 'smooth' });
" x-show="home === 2" x-transition>
</div>
<div class="input-container">
<div class="input-performance">
<span class="input-performance-point">
<p class="monospace" x-text="(time_till_first / 1000).toFixed(2)"></p>
<p class="megrim-regular">SEC TO FIRST TOKEN</p>
</span>
<span class="input-performance-point">
<p class="monospace" x-text="tokens_per_second.toFixed(1)"></p>
<p class="megrim-regular">TOKENS/SEC</p>
</span>
<span class="input-performance-point">
<p class="monospace" x-text="total_tokens"></p>
<p class="megrim-regular">TOKENS</p>
</span>
</div>
<div class="loading-bar" x-show="loadingMessage !== ''">
<p class="loading-text" id="loading-message">Loading:</p>
<span id="progress-percentage">0%</span>
<div class="progress-bar">
<div class="progress"></div>
</div>
</div>
<div class="input" x-show="loadingMessage === ''">
<textarea x-ref="inputForm" id="input-form" class="input-form" autofocus rows=1 x-autosize
:placeholder="generating ? placeholderText : 'Say something'" :disabled="generating" @input="
home = (home === 0) ? 1 : home
if (cstate.messages.length === 0 && $el.value === '') home = -1;
if ($el.value !== '') {
const messages = [...cstate.messages];
messages.push({ role: 'user', content: $el.value });
updateTotalTokens(messages);
} else {
if (cstate.messages.length === 0) total_tokens = 0;
else updateTotalTokens(cstate.messages);
}
" x-effect="
console.log(generating);
if (!generating) $nextTick(() => {
$el.focus();
setTimeout(() => $refs.messages.scrollTo({ top: $refs.messages.scrollHeight, behavior: 'smooth' }), 100);
});
" @keydown.enter="await handleEnter($event)" @keydown.escape.window="$focus.focus($el)"></textarea>
<button class="input-button" :disabled="generating" @click="await handleSend()">
<i class="fas" :class="generating ? 'fa-spinner fa-spin' : 'fa-paper-plane'"></i>
</button>
</div>
</div>
</main>
</body>
</html>