This repository was archived by the owner on Nov 17, 2023. It is now read-only.
This repository was archived by the owner on Nov 17, 2023. It is now read-only.
MKL_USE_STATIC_LIBS broken #18255
Description
Description
If we compile mxnet via cmake -GNinja -DUSE_MKLDNN=0 -DMKL_USE_STATIC_LIBS=0 -DUSE_CUDA=0 ..; ninja, running an operation that requires MKL will cause termination.
Error Message
INTEL MKL ERROR: /opt/intel/mkl/lib/intel64/libmkl_vml_avx512.so: undefined symbol: mkl_lapack_dspevd.
Intel MKL FATAL ERROR: cannot load libmkl_vml_avx512.so or libmkl_vml_def.so.
terminate called without an active exception
To Reproduce
python3 -c 'import mxnet as mx; print(mx.nd.square(mx.nd.random.uniform(shape=(1024,))))'
Discussion
The missing symbol is defined in /opt/intel/mkl/lib/intel64/libmkl_core.so: 000000000095ad00 T mkl_lapack_dspevd. libmxnet.so does depend on libmkl_core.so:
% ldd libmxnet.so
[...]
libmkl_intel_lp64.so => /opt/intel/mkl/lib/intel64/libmkl_intel_lp64.so (0x00007fe082883000)
libmkl_intel_thread.so => /opt/intel/mkl/lib/intel64/libmkl_intel_thread.so (0x00007fe080317000)
libmkl_core.so => /opt/intel/mkl/lib/intel64/libmkl_core.so (0x00007fe07bff7000)
[...]
Thus it's unclear why MKL complains that the symbol is missing when attempting to dlopen libmkl_vml_avx512.so
cc: @pengzhao-intel