copyFrom

void copyFrom(const faiss::IndexIVFPQ *index)

Copies AscendIndexIVFPQ to the Ascend based on an existing index and retains the resource configuration on the NPU of the original AscendIndex.

const faiss::IndexIVFPQ *index: index resources on the CPU.

N/A

N/A

The index must be a valid CPUindex pointer. The member functions of the index must meet the following requirements: d ∈ {64, 128, 256, 384, 512, 1024, 2048}, nlist ∈ {1024, 2048, 4096, 8192, 16384}, dim/subQuantizers ∈ {4, 8, 16, 32, 48, 64, 96, 128, 256}, bitsPerCode = 8, and metric = faiss::MetricType::METRIC_L2.