链接时报错torch_npu::init_npu(std::string const&)

[nihao1997]

编译时候报错torch_npu::init_npu(std::string const&)
nm 命令查找libtorch_npu.so，也未找到这个函数

[ChengruiZhang]

不论是pip还是源码编译出的库中均会出现类似的问题

[yunyiyun]

如果是使用libtorch_npu，请使用build_libtorch_npu.py编译获得

[HowardZorn]

I also have the same issue. Your libtorch_npu does not contain any version of the symbol torch_npu::init_npu.

[HowardZorn]

A Huawei employee said, "This symbol is only provided by libtorch_npu, but not the python package torch_npu". So it should be compiled by ourselves.

But there is a possible non-compiling solution:

// torch_npu::init_npu(device_index);
aclInit(nullptr);
c10_npu::SetDevice(device_index);

[yunyiyun]

A Huawei employee said, "This symbol is only provided by libtorch_npu, but not the python package torch_npu". So it should be compiled by ourselves.

But there is a possible non-compiling solution:

// torch_npu::init_npu(device_index);
aclInit(nullptr);
c10_npu::SetDevice(device_index);

https://www.hiascend.com/document/detail/zh/Pytorch/60RC2/configandinstg/instg/insg_0007.html