CMake Warning at cmake/OpenCVDetectInferenceEngine.cmake:82 (message):
  OpenMP for IE have not been found.  Set INF_ENGINE_OMP_DIR variable if you
  experience build errors.
Call Stack (most recent call first):
  cmake/OpenCVDetectInferenceEngine.cmake:110 (add_custom_ie_build)
  CMakeLists.txt:796 (include)


CMake Warning at cmake/OpenCVDetectInferenceEngine.cmake:144 (message):
  InferenceEngine version has not been set, 2021.4.1 will be used by default.
  Set INF_ENGINE_RELEASE variable if you experience build errors.
Call Stack (most recent call first):
  CMakeLists.txt:796 (include)

force_builders=Custom Win
build_image:Custom Win=winpack-dldt

build_image:Custom=ubuntu-openvino-2021.2.0:20.04
Xbuild_image:Custom Win=openvino-2021.2.0
build_image:Custom Mac=openvino-2021.2.0

test_modules:Custom=dnn,python2,python3,java
Xtest_modules:Custom Win=dnn,python2,python3,java
test_modules:Custom Mac=dnn,python2,python3,java

buildworker:Custom=linux-1
# disabled due high memory usage: test_opencl:Custom=ON
test_opencl:Custom=OFF
test_bigdata:Custom=1
test_filter:Custom=*