It works well for me with r2.4 branch.
Could you check if you're using up-to-date r2.4 branch?

BTW, here is the official guide on CMake build
https://www.tensorflow.org/lite/guide/build_cmake

It works well for me with r2.4 branch.
Could you check if you're using up-to-date r2.4 branch?

BTW, here is the official guide on CMake build
https://www.tensorflow.org/lite/guide/build_cmake

thanks for your reply, the reason for this problem is my gcc/g++ version too low, avx512 is supported after 6.x, but mine is 5.x, so i upgrade it to 9.0 and this problem solved.

but this build also has problem when i build dynamic libraries in ubuntu/windows et.
test_delegate_providers.cpp in line 29 and 40 throw errors with unrecognized reference of Merge and Parse.

@lxiao217 could you share the command you used to build dynamic libraries?

@lxiao217 could you share the command you used to build dynamic libraries?

i added "shared" in CMakeLists.txt like this:

TFLite library

add_library(tensorflow-lite SHARED
${TFLITE_CORE_API_SRCS}

and then" cmake ./ -B ./build ", then errors up thrown. i annotated those code at last, i dont know if this action will have other bad influence. though this code in test file.

Could you try if the patch 9455057 helps?

Could you try if the patch 9455057 helps?

thanks very much! i will try later.
when i build so in ubuntu16.04, i get the dynamic library libtensorflow-lite.so, but when i use it in my demo , errors were thrown like this:

/tmp/cifar10-d10aa3.o: In function cv::String::operator=(cv::String const&)': /usr/include/opencv2/core/cvstd.hpp:656: undefined reference to cv::String::deallocate()'
/home/xiaoling/tf_build/tflite_test/libs/x86_64/libtensorflow-lite.so: undefined reference to TfLiteXNNPackDelegateOptionsDefault' /home/xiaoling/tf_build/tflite_test/libs/x86_64/libtensorflow-lite.so: undefined reference to TfLiteXNNPackDelegateCreate'
/home/xiaoling/tf_build/tflite_test/libs/x86_64/libtensorflow-lite.so: undefined reference to `TfLiteXNNPackDelegateDelete'
clang-9: error: linker command failed with exit code 1 (use -v to see invocation)

when i build so, i close the switch to build with xnnpack:

option(TFLITE_ENABLE_XNNPACK "Enable XNNPACK backend" OFF)

this option is set ON default.

otherwise, seek for some helps:
when i build tflite, many thirdparty will be pull but the network speed is limited here, so i want to copy those 3rdparty to new folder where i want to save my building files. but the build script will delete files in these folder like eigen, and pull it from remote server in gitlab. this will waste me much time.
where i can set use local 3rdparty files, please give me some advise, i search in the build scripts will need much time. thanks for your help!

when i build so in ubuntu16.04, i get the dynamic library libtensorflow-lite.so, but when i use it in my demo

Hi, we had the same problem (undefined reference to TfLiteXNNPackDelegateCreate, `TfLiteXNNPackDelegateDelete, also Parse and Merge problem).

The patch 9455057 seems to solve our issue, but it's not present in the r2.4 branch and we had to pull directly from the master

@lxiao217,

Can you update to the latest stable version i.e 2.6.0 and let us know if the issue still persists? Thanks!

This issue has been automatically marked as stale because it has no recent activity. It will be closed if no further activity occurs. Thank you.

Closing as stale. Please reopen if you'd like to work on this further.

Are you satisfied with the resolution of your issue?
Yes
No