Notes 2019 08 01

Participants

• Chris Chambreau
• Marc-Andre Hermanns
• Amit Ruhela
• Josh Cottingham
• Kathryn Mohror
• Pouya Kousha
• Bharath Ramesh

Topics

MPI_Info before Init

• Sessions & Tools just need functionality for user<->implementation communication via MPI_Info objects
  • Only FT needs MPI_INFO_ENV to be available for the user to query error handling and thread level before init
• MPI_INFO_ENV is currently usually populated within MPI_Init because it has access to argc and argv
  • It was unclear whether MPI would be able to infer values without argc and argv
  • Wesley Bland will provide a new proposal of a call that will set up MPI_INFO_ENV taking argc and argv (or NULL) as arguments
    • No values parsed if NULL

MPI_T Events

• No updates
• Everyone to check state of PR#33

MPI_T Universal IDs

• Instead of moving the whole interface to strings, just propose a single String_to_Int Function to translate ID_Names into Integers
  • Inspired by Error Classes / Codes
  • Integer Values need to be comparable
  • Check whether both direction would be needed or only String->Int