use openMP for threading instead of TBB

Author: ndgrigorian

.github/workflows/build_pip.yaml

@@ -42,7 +42,7 @@ jobs:
 
       - name: Install Compiler and MKL
         run: |
-          conda install mkl-devel tbb-devel dpcpp_linux-64
+          conda install mkl-devel dpcpp_linux-64
           python -c "import sys; print(sys.executable)"
           which python
 

CMakeLists.txt

@@ -23,10 +23,10 @@ cmake_print_variables(Python_NumPy_INCLUDE_DIRS)
 set(CYTHON_FLAGS "-t -w \"${CMAKE_SOURCE_DIR}\"")
 find_package(Cython REQUIRED)
 
-find_package(TBB REQUIRED)
+find_package(OpenMP REQUIRED)
 set(MKL_ARCH "intel64")
 set(MKL_LINK "dynamic")
-set(MKL_THREADING "tbb_thread")
+set(MKL_THREADING "intel_thread")
 set(MKL_INTERFACE "lp64")
 find_package(MKL REQUIRED)
 

conda-recipe/meta.yaml

@@ -28,7 +28,6 @@ requirements:
       - python
       - python-gil     # [py>=314]
       - mkl-devel
-      - tbb-devel
       - numpy-base
       - wheel  >=0.41.3
     run: