topic Re:missing sgx_dnnl in Intel Confidential Computing

missing sgx_dnnl

MoonHasSevenColor — Tue, 15 Aug 2023 16:20:38 GMT

Hello,

when I executed "make" for a SGX program, it came error that -lsgx_dnnl is missing, may I ask how should I configure and download sgx_dnnl? I attach the error report screenshot. Thank you!

MoonHasSevenColor_0-1692116270224.png

Best Regards,

Jin Xin

Re:missing sgx_dnnl

Wan_Intel — Wed, 16 Aug 2023 05:57:24 GMT

Hello MoonHasSevenColor,

Thanks for reaching out to us.

Let me check with relevant team and I'll update you at the earliest.

Regards,

Wan

Re:missing sgx_dnnl

Wan_Intel — Thu, 17 Aug 2023 01:09:11 GMT

Hello MoonHasSevenColor,

Thanks for your patience.

To build the Intel® SGX DNNL library, follow the steps below:

1. Download Intel® SGX source codes.

2. Enter linux-trunk/external/dnnl/

3. Execute make command. The Makefile will download Intel® DNNL V1.1.1 source codes and patch the Intel® SGX-specific patch automatically.

To install Intel® SGX DNNL library, follow the steps below:

1. Copy Intel® SGX DNNL lib to the Intel® SGX SDK installation directory. $cp "./sgx_dnnl/lib/libsgx_dnnl.a" "$(SGX_SDK) /lib64"

2. Copy Intel® SGX DNNL header file to the Intel® SGX SDK installation directory. $cp "./sgx_dnnl/include/*" "$(SGX_SDK)/include"

To enable Intel® SGX DNNL in Enclave, do the following:

1. On Intel® SGX1 platform, set to 1 in the Enclave Configuration File.

2. Add "-lsgx_pthread -lsgx_omp -lsgx_dnnl" into enclave linking options in Makefile.

Please refer to SGX Intel Developer Guide for Linux for more information: https://download.01.org/intel-sgx/latest/linux-latest/docs/Intel_SGX_Developer_Reference_Linux_2.20_Open_Source.pdf

This sample in the SGX SDK is also helpful: https://github.com/intel/linux-sgx/tree/master/SampleCode/SampleDNNL

Regards,

Wan

Re:missing sgx_dnnl

Wan_Intel — Fri, 25 Aug 2023 01:06:46 GMT

Hello MoonHasSevenColor,

Thanks for your question.

If you need additional information from Intel, please submit a new question as this thread will no longer be monitored.

Regards,

Wan