Ruby
From gem5
Contents
Ruby
High level components of Ruby
Need to talk about the overview of Ruby and what are the major components.
Rathijit will do it
SLICC + Coherence protocols:
Need to say what is SLICC and whats its purpose. Talk about high level strcture of a typical coherence protocol file, that SLICC uses to generate code. A simple example structure from protocol like MI_example can help here.
Nilay will do it
Protocol independent memory components
- Cache Memory
- Replacement Policies
- Memory Controller
Arka will do it
Topologies and Networks
There is a separation between the network topology and the implementation.
Rathijit will do it
Implementation of Ruby
Low level details goes here. Need to explain code directory structure as well.
SLICC
Explain functionality/ capability of SLICC Talk about AST, Symbols, Parser and code generation in some details but NO need to cover every file and/or functions. Few examples should suffice.
Nilay will do it
Protocols
Need to talk about each protocol being shipped. Need to talk about protocol specific configuration parameters. NO need to explain every action or every state/events, but need to give overall idea and how it works and assumptions (if any).
MI example
MI protocols don't support LL/SC semantics.
Rathijit will do it
MOESI_hammer
Somayeh will do it
MOESI_CMP_token
Shoaib will do it
MOESI_CMP_directory
Rathijit will do it
MESI_CMP_directory
Arka will do it
Protocol Independent Memory components
System
Arka will do it
Sequencer
Arka will do it
CacheMemory
Arka will do it
DMASequencer
Derek will do it
Memory Controller
Rathijit will do it
Topologies and Networks
Topology specification
Python files specify connections. Shortest path graph traversals program the routing tables.
Network implementation
- SimpleNetwork
- Garnet
Life of a memory request in Ruby
Cpu model generates a packet -> RubyPort converts it to a ruby request -> L1 cache controller converts it to a protocol specific message ...etc.
Arka will do it
