More fixes to issues found on legay systems

codegen/test/rtc/src/compile_kernel.cpp

@@ -66,6 +66,7 @@ kernel compile_kernel(const std::vector<src_file>& srcs, compile_options options
     options.flags += " -I. -O3";
     options.flags += " -std=c++17";
     options.flags += " --offload-arch=" + get_device_name();
+    options.flags += " -lstdc++fs";
     std::string out;
 
     for(const auto& src : srcs)

library/src/tensor_operation_instance/gpu/mha/CMakeLists.txt

 set(FMHA_CPP_FOLDER ${CMAKE_CURRENT_BINARY_DIR})
 set(FMHA_SRC_FOLDER ${CMAKE_SOURCE_DIR}/example/ck_tile/01_fmha/)
 set(CK_TILE_SRC_FOLDER ${CMAKE_SOURCE_DIR}/include/ck_tile/)
-# python stuff
+
+# Usage: for customized Python location cmake -DCK_USE_ALTERNATIVE_PYTHON="/opt/Python-3.8.13/bin/python3.8"
+# CK Codegen requires dataclass which is added in Python 3.7
+# Python version 3.8 is required for general good practice as it is default for Ubuntu 20.04
 if(NOT CK_USE_ALTERNATIVE_PYTHON)
-  find_package(PythonInterp 3 REQUIRED)
+   find_package(Python3 3.8 COMPONENTS Interpreter REQUIRED)
 else()
    message("Using alternative python version")
    set(EXTRA_PYTHON_PATH)
+   # this is overly restrictive, we may need to be more flexible on the following
    string(REPLACE "/bin/python3.8" "" EXTRA_PYTHON_PATH "${CK_USE_ALTERNATIVE_PYTHON}")
    message("alternative python path is: ${EXTRA_PYTHON_PATH}")
-  find_package(Python3 3.6 COMPONENTS Interpreter REQUIRED)
    add_definitions(-DPython3_EXECUTABLE="${CK_USE_ALTERNATIVE_PYTHON}")
    set(Python3_EXECUTABLE "${CK_USE_ALTERNATIVE_PYTHON}")
    set(PYTHON_EXECUTABLE "${CK_USE_ALTERNATIVE_PYTHON}")
    set(ENV{LD_LIBRARY_PATH} "${EXTRA_PYTHON_PATH}/lib:$ENV{LD_LIBRARY_PATH}")
+   find_package(Python3 3.8 COMPONENTS Interpreter REQUIRED)
 endif()
 
 rocm_install(DIRECTORY ${CK_TILE_SRC_FOLDER} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/ck_tile)
@@ -52,8 +56,6 @@ add_custom_target(generate_cpp_files DEPENDS ${FMHA_FWD_GEN_BLOBS})
 
 add_instance_library(device_mha_instance ${device_files})
 
-
-
 if (TARGET device_mha_instance)
   add_dependencies(device_mha_instance generate_cpp_files)
 endif()