hubutui commented on issue #15294: mkldnn is not properly installed URL: https://github.com/apache/incubator-mxnet/issues/15294#issuecomment-504044176 Also, I have add `-llapacke` to linker flags. Otherwise, I got something like: ```text la_op.cc:(.text._Z12linalg_orglqIN7mshadow3cpuEdEvRKNS0_6TensorIT_Li2ET0_EERKNS2_IS3_Li1ES4_EEPNS0_6StreamIS3_EE[_Z12linalg_orglqIN7mshadow3cpuEdEvRKNS0_6TensorIT_Li2ET0_EERKNS2_IS3_Li1ES4_EEPNS0_6StreamIS3_EE]+0x4f): undefined reference to `LAPACKE_dorglq' ``` It seems that `lapacke` is not properly linked when using mkl-dnn.
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