copyFrom

void copyFrom(const faiss::PCAMatrix*cpuTrans)

Copies AscendPCAMatrix to the Ascend based on the PCAMatrix on the CPU. The current base library of AscendPCAMatrix is cleared, and the original resource configuration on the NPU of AscendPCAMatrix remains unchanged.

const faiss::PCAMatrix *cpuTrans: PCAMatrix on the CPU.

N/A

N/A

The cpuTrans must be a valid PCAMatrix pointer.