7. AGFI Metadata/Tagging

In the AWS EC2 case, when you build an AGFI in FireSim, the AGFI description stored by AWS is populated with metadata that helps the manager decide how to deploy a simulation. The important metadata is listed below, along with how each field is set and used:

  • firesim-buildtriplet: This always reflects the triplet combination used to BUILD the AGFI.

  • firesim-deploytriplet: This reflects the triplet combination that is used to DEPLOY the AGFI. By default, this is the same as firesim-buildtriplet. In certain cases however, your users may not have access to a particular configuration, but a simpler configuration may be sufficient for building a compatible software driver (e.g. if you have proprietary RTL in your FPGA image that doesn’t interface with the outside system). In this case, you can specify a custom deploytriplet at build time. If you do not do so, the manager will automatically set this to be the same as firesim-buildtriplet.

  • firesim-commit: This is the commit hash of the version of FireSim used to build this AGFI. If the AGFI was created from a dirty copy of the FireSim repo, “-dirty” will be appended to the commit hash.