harkgill-amd

Fix for https://github.com/ROCm/amdsmi/issues/24 amd-smi event is failing to exit as it waits for all threads to complete before exiting. Each thread has to listen for a maximum of 10 seconds...

Fix for https://github.com/ROCm/HIP/issues/3199. Change were previously made in https://github.com/rocm-ci/HIP/commit/918214ecabd2608058d615471249150b0a549fc4#diff-c993d11f2ff9e3314f88524d14116463a55ccd2bbccd453d33783eec28a3ca46R154 but was overridden. Preprocessor macros include double underscores which are missing in the porting guide.

The external HIPCC documentation at https://rocm.docs.amd.com/projects/HIPCC/en/docs-6.2.2/env.html currently only lists two environment variables, HIP_PLATFORM and CUDA_PATH. Other variables such as HIPCC_COMPILE_FLAGS_APPEND and HIPCC_LINK_FLAGS_APPEND have no documentation. **Proposal** Add the below definitions...