[9.2] [GPU] Optimize merge memory usage (#136411) #136825
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This PR changes how we gather and compact vector data for transmitting them to the GPU. Instead of using a temporary file to write out the compacted arrays, we use directly the vector values from the scorer supplier, which are backed by a memory mapped input. This way we avoid an additional copy of the data.
ldematte
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:Search Relevance/Vectors
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Backports the following commits to 9.2: