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fix: metadata string encoding (#420)
* fix: metadata string encoding * fix: Vulkan parallel decoding * fix: try auth token on 401 response
1 parent 86e1bee commit 314d7e8

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Lines changed: 43 additions & 38 deletions

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‎docs/guide/external-chat-state.md‎

Lines changed: 4 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -9,9 +9,9 @@ You can [save and restore a chat history](./chat-session.md#save-and-restore) on
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:::
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To interact with a model in a chat form, you can use [`LlamaChatSession`](../api/classes/LlamaChatSession.md),
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which is stateful chat session that manages the chat state on its own.
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which is a stateful chat session that manages the chat state on its own.
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When building a library around `node-llama-cpp`, you may want to store that chat state externally and control the evaluations on your own.
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When building a library around `node-llama-cpp`, you may want to store that chat state externally and control the evaluations yourself.
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This is where [`LlamaChat`](../api/classes/LlamaChat.md) may come in handy.
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[`LlamaChat`](../api/classes/LlamaChat.md) Allows you to generate a completion to an existing chat session and manage the evaluation yourself,
@@ -69,9 +69,9 @@ const res = await llamaChat.generateResponse(chatHistory, {
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console.log("AI: " + res.response);
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```
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Now, let say we want to ask the model a follow-up question based on the previous response.
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Now, let's say we want to ask the model a follow-up question based on the previous response.
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Since we already have a context sequence loaded with the previous chat history,
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we'd want to use it as much a possible.
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we'd want to reuse it as much a possible.
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To do so, we pass the context window of the previous evaluation output to the new evaluation.
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This is important, since if a context shift has happened, we want to use the existing post-context-shift context sequence state

‎src/evaluator/LlamaContext/LlamaContext.ts‎

Lines changed: 11 additions & 1 deletion
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@@ -1,4 +1,4 @@
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import {acquireLock, AsyncDisposeAggregator, DisposeAggregator, DisposedError, EventRelay, withLock} from "lifecycle-utils";
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import {acquireLock, AsyncDisposeAggregator, DisposeAggregator, DisposedError, EventRelay, Lock, withLock} from "lifecycle-utils";
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import {removeNullFields} from "../../utils/removeNullFields.js";
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import {Token} from "../../types.js";
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import {AddonContext, AddonModelLora, BatchLogitIndex} from "../../bindings/AddonTypes.js";
@@ -32,6 +32,10 @@ const defaultFailedCreationRemedy = {
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} as const satisfies Required<LlamaContextOptions["failedCreationRemedy"]>;
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const defaultEvaluationPriority: EvaluationPriority = 5;
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const decodeSyncWorkaround = {
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vulkanLock: {}
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};
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export class LlamaContext {
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/** @internal */ public readonly _llama: Llama;
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/** @internal */ public readonly _ctx: AddonContext;
@@ -573,11 +577,17 @@ export class LlamaContext {
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return;
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}
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let decodeLock: Lock | undefined;
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// this is a workaround to prevent Vulkan from crashing the process when decoding on multiple contexts in parallel
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if (this._llama.gpu === "vulkan")
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decodeLock = await acquireLock(decodeSyncWorkaround.vulkanLock, "decode");
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try {
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await decodeTokenBatchItems(currentBatchItems, currentBatchSize);
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shouldHaveAnotherLoop = this._queuedDecodes.length > 0;
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} finally {
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decodeLock?.dispose();
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preventDisposalHandle.dispose();
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}
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}

‎src/gguf/fileReaders/GgufFileReader.ts‎

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Original file line numberDiff line numberDiff line change
@@ -99,12 +99,7 @@ export abstract class GgufFileReader {
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const readLength = valueTypeToBytesToRead.uint8 * length;
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return this._withBufferRead(offset, readLength, (resolvedOffset) => {
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const res: string[] = [];
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for (let i = resolvedOffset; i < resolvedOffset + readLength && i < this._buffer.length; i++)
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res.push(String.fromCharCode(this._buffer[i]!));
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return res.join("");
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return this._buffer.toString("utf8", resolvedOffset, Math.min(resolvedOffset + readLength, this._buffer.length));
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});
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}
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‎src/gguf/fileReaders/GgufNetworkFetchFileReader.ts‎

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@@ -104,7 +104,7 @@ export class GgufNetworkFetchFileReader extends GgufFileReader {
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signal: this._signal
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});
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if ((response.status >= 500 || response.status === 429) && headersToTry.length > 0)
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if ((response.status >= 500 || response.status === 429 || response.status === 401) && headersToTry.length > 0)
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continue;
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if (!response.ok)

‎test/modelDependent/functionary/gguf/__snapshots__/ggufParser.test.ts.snap‎

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Original file line numberDiff line numberDiff line change
@@ -114,16 +114,16 @@ exports[`gguf > parser > should fetch GGUF metadata 1`] = `
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"bos_token_id": 128000,
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"eos_token_id": 128001,
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"merges": [
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"Ä  Ä ",
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"Ä  Ä Ä Ä ",
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"Ä Ä  Ä Ä ",
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"Ä Ä Ä  Ä ",
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"Ġ Ġ",
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"Ġ ĠĠĠ",
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"ĠĠ ĠĠ",
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"ĠĠĠ Ġ",
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"i n",
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"Ä  t",
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"Ä  Ä Ä Ä Ä Ä Ä Ä ",
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"Ä Ä  Ä Ä Ä Ä Ä Ä ",
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"Ä Ä Ä Ä  Ä Ä Ä Ä ",
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"Ä Ä Ä  Ä Ä Ä Ä Ä ",
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"Ġ t",
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"Ġ ĠĠĠĠĠĠĠ",
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"ĠĠ ĠĠĠĠĠĠ",
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"ĠĠĠĠ ĠĠĠĠ",
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"ĠĠĠ ĠĠĠĠĠ",
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],
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"model": "gpt2",
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"padding_token_id": 128001,
@@ -325,16 +325,16 @@ exports[`gguf > parser > should parse local gguf model 1`] = `
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"bos_token_id": 128000,
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"eos_token_id": 128001,
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"merges": [
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"Ä  Ä ",
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"Ä  Ä Ä Ä ",
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"Ä Ä  Ä Ä ",
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"Ä Ä Ä  Ä ",
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"Ġ Ġ",
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"Ġ ĠĠĠ",
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"ĠĠ ĠĠ",
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"ĠĠĠ Ġ",
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"i n",
333-
"Ä  t",
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"Ä  Ä Ä Ä Ä Ä Ä Ä ",
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"Ä Ä  Ä Ä Ä Ä Ä Ä ",
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"Ä Ä Ä Ä  Ä Ä Ä Ä ",
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"Ä Ä Ä  Ä Ä Ä Ä Ä ",
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"Ġ t",
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"Ġ ĠĠĠĠĠĠĠ",
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"ĠĠ ĠĠĠĠĠĠ",
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"ĠĠĠĠ ĠĠĠĠ",
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"ĠĠĠ ĠĠĠĠĠ",
338338
],
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"model": "gpt2",
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"padding_token_id": 128001,

‎test/standalone/gguf/__snapshots__/ggufStandaloneParser.test.ts.snap‎

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Original file line numberDiff line numberDiff line change
@@ -83,15 +83,15 @@ exports[`gguf > parser > should parse remote gguf model 1`] = `
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"ggml": {
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"eos_token_id": 11,
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"merges": [
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"Ä  t",
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"Ä  a",
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"Ġ t",
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"Ġ a",
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"i n",
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"h e",
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"r e",
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"o n",
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"e r",
93-
"Ä  s",
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"Ä t he",
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"Ġ s",
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"Ġt he",
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"a t",
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],
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"model": "gpt2",
@@ -229,15 +229,15 @@ exports[`gguf > parser > should parse remote gguf model without tensor info 1`]
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"ggml": {
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"eos_token_id": 11,
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"merges": [
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"Ä  t",
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"Ä  a",
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"Ġ t",
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"Ġ a",
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"i n",
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"h e",
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"r e",
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"o n",
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"e r",
239-
"Ä  s",
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"Ä t he",
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"Ġ s",
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"Ġt he",
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"a t",
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],
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"model": "gpt2",

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