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Add MMapAllocator that allocates memory via mmap-backed files on a configurable path (e.g. NVMe/SSD). This enables placing secondary data structures on SSD while keeping primary data in RAM, reducing heap memory usage for large-scale vector search. - include/svs/core/allocator_mmap.h: MMapAllocator with configurable base path, access hints (Sequential/Random/Normal), and automatic file cleanup on deallocation. - tests/svs/core/test_allocator_mmap.cpp: Unit tests for allocation, deallocation, file creation, and access hint propagation. - tests/CMakeLists.txt: Register mmap allocator test.
ibhati
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rfsaliev
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razdoburdin and
rfsaliev
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Add MMapAllocator that allocates memory via mmap-backed files on a configurable path (e.g. NVMe/SSD). This enables placing secondary data structures on SSD while keeping primary data in RAM, reducing heap memory usage for large-scale vector search.