src/mem/ruby/config/MI_example-homogeneous.rb

   1 #!/usr/bin/ruby
   2 #
   3 #  Creates a homogeneous CMP system with a single unified cache per
   4 #  core and a crossbar network.  Uses the default parameters listed
   5 #  below, which can be overridden if a wrapper script sets the hash
   6 #  libruby_args.
   7 #
   8
   9 require "cfg.rb"
  10
  11 # default values
  12
  13 num_cores = 16
  14 L1_CACHE_SIZE_KB = 32
  15 L1_CACHE_ASSOC = 8
  16 L1_CACHE_LATENCY = "auto"
  17 num_memories = 2
  18 memory_size_mb = 1024
  19 NUM_DMA = 1
  20
  21 # check for overrides
  22
  23 for i in 0..$*.size-1 do
  24   if $*[i] == "-p"
  25     num_cores = $*[i+1].to_i
  26     i = i+1
  27   elsif $*[i] == "-m"
  28     num_memories = $*[i+1].to_i
  29     i = i+1
  30   elsif $*[i] == "-s"
  31     memory_size_mb = $*[i+1].to_i
  32     i = i + 1
  33   end
  34 end
  35
  36 net_ports = Array.new
  37 iface_ports = Array.new
  38
  39 num_cores.times { |n|
  40   cache = SetAssociativeCache.new("l1u_"+n.to_s, L1_CACHE_SIZE_KB, L1_CACHE_LATENCY, L1_CACHE_ASSOC, "PSEUDO_LRU")
  41   sequencer = Sequencer.new("Sequencer_"+n.to_s, cache, cache)
  42   iface_ports << sequencer
  43   net_ports << MI_example_CacheController.new("L1CacheController_"+n.to_s,
  44                                    "L1Cache",
  45                                    [cache],
  46                                    sequencer)
  47 }
  48 num_memories.times { |n|
  49   directory = DirectoryMemory.new("DirectoryMemory_"+n.to_s, memory_size_mb/num_memories)
  50   memory_control = MemoryControl.new("MemoryControl_"+n.to_s)
  51   net_ports << MI_example_DirectoryController.new("DirectoryController_"+n.to_s,
  52                                        "Directory",
  53                                        directory, memory_control)
  54 }
  55 NUM_DMA.times { |n|
  56   dma_sequencer = DMASequencer.new("DMASequencer_"+n.to_s)
  57   iface_ports << dma_sequencer
  58   net_ports << DMAController.new("DMAController_"+n.to_s, "DMA", dma_sequencer)
  59 }
  60
  61 topology = CrossbarTopology.new("theTopology", net_ports)
  62 on_chip_net = Network.new("theNetwork", topology)
  63
  64 RubySystem.init(iface_ports, on_chip_net)