Improve dpnp.div() implementation

.github/workflows/conda-package.yml

@@ -196,6 +196,8 @@ jobs:
         run: |
           python -m pytest -q -ra --disable-warnings -vv ${{ env.TEST_SCOPE }}
         working-directory: ${{ env.tests-path }}
+        env:
+          SYCL_QUEUE_THREAD_POOL_SIZE: 6
 
   test_windows:
     name: Test ['windows-latest', python='${{ matrix.python }}']
@@ -333,6 +335,8 @@ jobs:
         run: |
           python -m pytest -q -ra --disable-warnings -vv ${{ env.TEST_SCOPE }}
         working-directory: ${{ env.tests-path }}
+        env:
+          SYCL_QUEUE_THREAD_POOL_SIZE: 6
 
   upload:
     name: Upload ['${{ matrix.os }}', python='${{ matrix.python }}']

.github/workflows/generate_coverage.yaml

@@ -66,6 +66,7 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           COVERALLS_PARALLEL: true
+          SYCL_QUEUE_THREAD_POOL_SIZE: 6
 
   coveralls:
     name: Indicate completion to coveralls.io

dpnp/CMakeLists.txt

@@ -48,6 +48,7 @@ endfunction()
 build_dpnp_cython_ext_with_backend(dparray ${CMAKE_CURRENT_SOURCE_DIR}/dparray.pyx dpnp)
 add_subdirectory(backend)
 add_subdirectory(backend/extensions/lapack)
+add_subdirectory(backend/extensions/vm)
 
 add_subdirectory(dpnp_algo)
 add_subdirectory(dpnp_utils)

dpnp/backend/extensions/vm/CMakeLists.txt

@@ -0,0 +1,75 @@
+# *****************************************************************************
+# Copyright (c) 2023, Intel Corporation
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+# - Redistributions of source code must retain the above copyright notice,
+#   this list of conditions and the following disclaimer.
+# - Redistributions in binary form must reproduce the above copyright notice,
+#   this list of conditions and the following disclaimer in the documentation
+#   and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+# THE POSSIBILITY OF SUCH DAMAGE.
+# *****************************************************************************
+
+
+set(python_module_name _vm_impl)
+pybind11_add_module(${python_module_name} MODULE
+    vm_py.cpp
+    div.cpp
+)
+
+if (WIN32)
+    if (${CMAKE_VERSION} VERSION_LESS "3.27")
+        # this is a work-around for target_link_options inserting option after -link option, cause
+        # linker to ignore it.
+        set(CMAKE_CXX_LINK_FLAGS "${CMAKE_CXX_LINK_FLAGS} -fsycl-device-code-split=per_kernel")
+    endif()
+endif()
+
+set_target_properties(${python_module_name} PROPERTIES CMAKE_POSITION_INDEPENDENT_CODE ON)
+
+target_include_directories(${python_module_name} PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/../../include)
+target_include_directories(${python_module_name} PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/../../src)
+
+target_include_directories(${python_module_name} PUBLIC ${Dpctl_INCLUDE_DIRS})
+target_include_directories(${python_module_name} PUBLIC ${Dpctl_TENSOR_INCLUDE_DIR})
+
+if (WIN32)
+  target_compile_options(${python_module_name} PRIVATE
+    /clang:-fno-approx-func
+    /clang:-fno-finite-math-only
+    )
+else()
+  target_compile_options(${python_module_name} PRIVATE
+    -fno-approx-func
+    -fno-finite-math-only
+    )
+endif()
+
+target_link_options(${python_module_name} PUBLIC -fsycl-device-code-split=per_kernel)
+if (UNIX)
+    # this option is support on Linux only
+    target_link_options(${python_module_name} PUBLIC -fsycl-link-huge-device-code)
+endif()
+
+if (DPNP_GENERATE_COVERAGE)
+    target_link_options(${python_module_name} PRIVATE -fprofile-instr-generate -fcoverage-mapping)
+endif()
+
+target_link_libraries(${python_module_name} PUBLIC MKL::MKL_DPCPP)
+
+install(TARGETS ${python_module_name}
+  DESTINATION "dpnp/backend/extensions/vm"
+)