Initial check-in of elementwise functions: abs/cos/isnan/add

Author: oleksandr-pavlyk

dpctl/tensor/CMakeLists.txt

@@ -45,7 +45,15 @@ pybind11_add_module(${python_module_name} MODULE
     ${CMAKE_CURRENT_SOURCE_DIR}/libtensor/source/triul_ctor.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/libtensor/source/where.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/libtensor/source/device_support_queries.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/libtensor/source/elementwise_functions.cpp
 )
+set(_clang_prefix "")
+if (WIN32)
+  set(_clang_prefix "/clang:")
+endif()
+set_source_files_properties(
+  ${CMAKE_CURRENT_SOURCE_DIR}/libtensor/source/elementwise_functions.cpp
+  PROPERTIES COMPILE_OPTIONS "${_clang_prefx}-fno-approx-func")
 target_compile_options(${python_module_name} PRIVATE -fno-sycl-id-queries-fit-in-int)
 target_link_options(${python_module_name} PRIVATE -fsycl-device-code-split=per_kernel)
 if(UNIX)

dpctl/tensor/__init__.py

@@ -90,6 +90,7 @@
 from dpctl.tensor._usmarray import usm_ndarray
 
 from ._constants import e, inf, nan, newaxis, pi
+from ._elementwise_funcs import abs, add, cos, isnan
 
 __all__ = [
     "Device",
@@ -164,4 +165,8 @@
     "pi",
     "nan",
     "inf",
+    "abs",
+    "add",
+    "cos",
+    "isnan",
 ]