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Fix sizing with unconstrained thread pool size

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Robert Schulze 2024-09-15 15:06:14 +00:00
parent 9ca149a487
commit 37411bf240
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1 changed files with 3 additions and 0 deletions
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src/Storages/MergeTree/MergeTreeIndexVectorSimilarity.cpp
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@ -5,6 +5,7 @@
#include <Columns/ColumnArray.h>
#include <Common/BitHelpers.h>
#include <Common/formatReadable.h>
#include <Common/getNumberOfPhysicalCPUCores.h>
#include <Common/logger_useful.h>
#include <Common/typeid_cast.h>
#include <Core/Field.h>
@ -270,6 +271,8 @@ void updateImpl(const ColumnArray * column_array, const ColumnArray::Offsets & c
/// Reserving space is mandatory
size_t max_thread_pool_size = Context::getGlobalContextInstance()->getServerSettings().max_build_vector_similarity_index_thread_pool_size;
if (max_thread_pool_size == 0)
max_thread_pool_size = getNumberOfPhysicalCPUCores();
unum::usearch::index_limits_t limits(roundUpToPowerOfTwoOrZero(index->size() + rows), max_thread_pool_size);
index->reserve(limits);