InOrder ToDo List

From gem5
Jump to: navigation, search

Python Configurability

  • Resource Configuration - How can we specify what resources are instantiated via the Python config files?
    • ResourceType - Type of resource (Enum type)
      • ResourceParams - Parameters for this type of resource
      • Request - List of requests for this type of resource (Enum type)
        • Latency - operation latency and issue latency (intra/inter thread)
      • Count - Number of such resource type
  • Pipeline Description
    • InstSchedule - Instruction schedule specified as a vector of InstClassSchedule
      • InstClassSchedule - Vector of schedules per instruction class - load/store, Int execute, FP execute, specialized inst, etc. (do we still want a distinction between front end and back end schedules?)
    • ResourceRequestList - Vector of ResourceRequest (per stage?)
      • ResourceRequest - Vector of requests for resources
    • ResourceType/Request options

Resources

  • Execution Unit
    • Fold Address Generation Unit (AGEN) into the EXE
    • Pass a Function Unit Pool object to the EXE and specify what functions can operate through a specific unit (similar to O3)


Simulation Speed

  • Instruction Sleeping
    • Sleep instructions waiting for an long-delay event (instead of constantly ask a resource if it's complete
  • Event Sleeping
    • Sleep CPU w/no activity - Implemented on a coarse-grain level, but Activity object can be tuned to be exact.
  • Resource Pool
  • Instead of broadcasting all events to the resource pool, have resources declare what functions they have virtual functions for (or auto-detect this) and then only broadcast to the right set of resources every time (e.g. the BranchPredictor may not care about a Trap Event)

ISA Support

  • ALPHA - completed
  • MIPS - completed
  • SPARC - partially completed (not currently being developed)
  • ARM - not completed - Support for Micro-Ops Needed (Template code from Simple or O3 CPU?)
  • X86 - not completed - Support for Micro-Ops Needed (Template code from Simple or O3 CPU?)
  • POWER - not completed

Full System Support

  • InOrder can boot Linux, but testing for benchmark suites
    • PARSEC
    • SPLASH2
    • SPEC2K6

Checkpointing

  • The serialize/unserialize functions are currently unimplemented in InOrder

SwitchOut

  • Implement the drain function for InOrder
Retrieved from "http://m5sim.org/wiki/index.php?title=InOrder_ToDo_List&oldid=3794"