oneapi-src/oneDNN

Q: Howto build mkl_tiny?

banderlog opened this issue · 6 comments

banderlog commented

OpenVINO has some 30MB libmkl_tiny_tbb.so, which is:

"The special version of MKL dynamic library packed specially to use within Inference Engine library.", as stated in version.txt.

MKL-DNN has 125MB libmklml_gnu.so. Is there a way to build a ~30MB file from MKL-DNN git hub repo?

emfomenk commented

Hi @banderlog,

I guess mkl_tiny is built using Custom DLL builder. The size of the resulting library depends on how many symbols you put in it. IIRC, mkl_tiny has only gemm and maybe very few extra functions, while mklml has many more functions from BLAS, some LAPACK functions, and even functions from VML/VSL domain.

vpirogov commented

@banderlog,

It's important to note that libmkl_tiny_tbb.so is a derivative of Intel MKL. This repository does not include this library or any of it's sources.

banderlog commented

Thank you guys, I'll conclude that the answer is 'No'

ghhofeme commented

Hey - the user also posted this question in Stack Overflow - I posted the answer there and the link to this thread.

  • 👍1
vpirogov commented

@banderlog, that's correct. Let me expand the answer.

The only way to build libmkl_tiny_tbb.so is from Intel MKL package using custom shared object building tool.

The functionality equivalent to libmkl_tiny_tbb.so is available in DNNL v1.x and above. OpenVINO will stop using libmkl_tiny_tbb.so in the next release and this library will not be required anymore to build it.

  • 👍1
WilliamTambellini commented

And worth to mention that a release build of libdnnl.so is "only" about 20MB.

  • 🎉1