AscendIndexInt8Flat

API definition	AscendIndexInt8Flat(int dims, faiss::MetricType metric = faiss::METRIC_L2, AscendIndexInt8FlatConfig config = AscendIndexInt8FlatConfig());
Function	Constructor of AscendIndexInt8Flat, which is used to generate an AscendIndexInt8 whose dimension is dims. The device resources are configured based on the value configured in config. Note that the dimension of a group of vectors managed by a single index is unique.
Input	int dims: dimensions of a group of feature vectors managed by AscendIndexInt8. faiss::MetricType metric: distance measurement type used by AscendIndex when it retrieves feature vector similarity. AscendIndexInt8FlatConfig config: resource configuration on the device.
Output	N/A
Return value	N/A
Restrictions	dims ∈ {64, 128, 256, 384, 512, 768, 1024}. metric ∈ {faiss::MetricType::METRIC_L2, faiss::MetricType::METRIC_INNER_PRODUCT}.

API definition	AscendIndexInt8Flat(const faiss::IndexScalarQuantizer *index, AscendIndexInt8FlatConfig config = AscendIndexInt8FlatConfig());
Function	Constructor of AscendIndexInt8Flat, which is used to create a retrieval index on the Ascend based on an existing index.
Input	*const faiss::IndexScalarQuantizer index: index resources on the CPU. AscendIndexInt8FlatConfig config**: resource configuration on the device.
Output	N/A
Return value	N/A
Restrictions	index must be a valid CPU Index pointer, that is, the faiss::IndexScalarQuantizer pointer generated by AscendIndexInt8Flat when copyTo is called.

API definition	AscendIndexInt8Flat(const faiss::IndexIDMap*index, AscendIndexInt8FlatConfig config = AscendIndexInt8FlatConfig());
Function	Constructor of AscendIndexInt8Flat, which is used to create a retrieval index on the Ascend based on an existing index.
Input	*const faiss::IndexIDMap index: index resources on the CPU. AscendIndexInt8FlatConfig config**: resource configuration on the device.
Output	N/A
Return value	N/A
Restrictions	index must be a valid CPU Index pointer, that is, the faiss::IndexIDMap pointer generated by AscendIndexInt8Flat when copyTo is called.

API definition	AscendIndexInt8Flat(const AscendIndexInt8Flat&) = delete;
Function	Declares that the copy constructor of this Index class is void, that is, it cannot be copied.
Input	const AscendIndexInt8Flat&: constant AscendIndexInt8Flat
Output	N/A
Return value	N/A
Restrictions	N/A

API definition	virtual ~AscendIndexInt8Flat();
Function	Destructor of AscendIndexInt8Flat, which is used to destroy the AscendIndexInt8Flat object and resources.
Input	N/A
Output	N/A
Return value	N/A
Restrictions	N/A

Parent topic: AscendIndexInt8Flat