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Only spawn the pool once

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This commit is contained in:
Louis Dureuil 2024-06-19 13:57:44 +02:00
parent 6c6c4732a1
commit 6254c7cee1
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1 changed files with 16 additions and 7 deletions
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23
milli/src/update/index_documents/extract/mod.rs
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@ -11,7 +11,7 @@ mod extract_word_position_docids;
use std::fs::File;
use std::io::BufReader;
use std::sync::Arc;
use std::sync::{Arc, OnceLock};
use crossbeam_channel::Sender;
use rayon::prelude::*;
@ -31,7 +31,7 @@ use self::extract_word_position_docids::extract_word_position_docids;
use super::helpers::{as_cloneable_grenad, CursorClonableMmap, GrenadParameters};
use super::{helpers, TypedChunk};
use crate::update::settings::InnerIndexSettingsDiff;
use crate::{FieldId, Result, ThreadPoolNoAbortBuilder};
use crate::{FieldId, Result, ThreadPoolNoAbort, ThreadPoolNoAbortBuilder};
/// Extract data for each databases from obkv documents in parallel.
/// Send data in grenad file over provided Sender.
@ -213,6 +213,18 @@ fn run_extraction_task<FE, FS, M>(
})
}
fn request_threads() -> &'static ThreadPoolNoAbort {
static REQUEST_THREADS: OnceLock<ThreadPoolNoAbort> = OnceLock::new();
REQUEST_THREADS.get_or_init(|| {
ThreadPoolNoAbortBuilder::new()
.num_threads(crate::vector::REQUEST_PARALLELISM)
.thread_name(|index| format!("embedding-request-{index}"))
.build()
.unwrap()
})
}
/// Extract chunked data and send it into lmdb_writer_sx sender:
/// - documents
fn send_original_documents_data(
@ -227,10 +239,7 @@ fn send_original_documents_data(
let documents_chunk_cloned = original_documents_chunk.clone();
let lmdb_writer_sx_cloned = lmdb_writer_sx.clone();
let request_threads = ThreadPoolNoAbortBuilder::new()
.num_threads(crate::vector::REQUEST_PARALLELISM)
.thread_name(|index| format!("embedding-request-{index}"))
.build()?;
let request_threads = request_threads();
if settings_diff.reindex_vectors() || !settings_diff.settings_update_only() {
let settings_diff = settings_diff.clone();
@ -249,7 +258,7 @@ fn send_original_documents_data(
prompts,
indexer,
embedder.clone(),
&request_threads,
request_threads,
) {
Ok(results) => Some(results),
Err(error) => {