Function mindspore::dataset::CreateDatasetCacheCharIF

Function Documentation

std::shared_ptr<DatasetCache> mindspore::dataset::CreateDatasetCacheCharIF(session_id_type id, uint64_t mem_sz, bool spill, const std::optional<std::vector<char>> &hostname = std::nullopt, const std::optional<int32_t> &port = std::nullopt, const std::optional<int32_t> &num_connections = std::nullopt, const std::optional<int32_t> &prefetch_sz = std::nullopt)

Function to create a cache to be attached to a dataset.

Note

The reason for providing this API is that std::string will be constrained by the compiler option ‘_GLIBCXX_USE_CXX11_ABI’ while char is free of this restriction. Check API mindspore::dataset::CreateDatasetCache and find more usage.

Parameters

  • id – [in] A user assigned session id for the current pipeline.

  • mem_sz – [in] Size of the memory set aside for the row caching (default=0 which means unlimited, note that it might bring in the risk of running out of memory on the machine).

  • spill – [in] Spill to disk if out of memory.

  • hostname – [in] optional host name (default=std::nullopt, means to use “127.0.0.1”).

  • port – [in] optional port (default=std::nullopt, means to use 50052).

  • num_connections – [in] optional number of connections (default=std::nullopt, means to use 12).

  • prefetch_sz – [in] optional prefetch size (default=std::nullopt, means to use 20).

Returns

Shared pointer to DatasetCache. If error, nullptr is returned.