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#!/usr/bin/ruby
#
# Creates a homogeneous CMP system with a single unified cache per
# core and a crossbar network. Uses the default parameters listed
# below, which can be overridden if a wrapper script sets the hash
# libruby_args.
#
require "cfg.rb"
RubySystem.reset
# default values
num_cores = 2
l1_cache_size_bytes = 32768
l1_cache_assoc = 8
l1_cache_latency = 1
num_memories = 2
memory_size_mb = 1024
num_dma = 1
protocol = "MI_example"
# check for overrides
for i in 0..$*.size-1 do
if $*[i] == "-c"
protocol = $*[i+1]
i = i+1
elsif $*[i] == "-p"
num_cores = $*[i+1].to_i
i = i+1
elsif $*[i] == "-m"
num_memories = $*[i+1].to_i
i = i+1
elsif $*[i] == "-R"
if $*[i+1] == "rand"
RubySystem.random_seed = "rand"
else
RubySystem.random_seed = $*[i+1].to_i
end
i = i+ 1
elsif $*[i] == "-s"
memory_size_mb = $*[i+1].to_i
i = i + 1
elsif $*[i] == "-C"
l1_cache_size_bytes = $*[i+1].to_i
i = i + 1
elsif $*[i] == "-A"
l1_cache_assoc = $*[i+1].to_i
i = i + 1
elsif $*[i] == "-D"
num_dma = $*[i+1].to_i
i = i + 1
end
end
net_ports = Array.new
iface_ports = Array.new
assert(protocol == "MI_example", __FILE__ + " cannot be used with protocol " + protocol)
require protocol+".rb"
num_cores.times { |n|
cache = SetAssociativeCache.new("l1u_"+n.to_s, l1_cache_size_bytes, l1_cache_latency, l1_cache_assoc, "PSEUDO_LRU")
sequencer = Sequencer.new("Sequencer_"+n.to_s, cache, cache)
iface_ports << sequencer
net_ports << MI_example_CacheController.new("L1CacheController_"+n.to_s,
"L1Cache",
cache,
sequencer)
}
num_memories.times { |n|
directory = DirectoryMemory.new("DirectoryMemory_"+n.to_s, memory_size_mb/num_memories)
memory_control = MemoryControl.new("MemoryControl_"+n.to_s)
net_ports << MI_example_DirectoryController.new("DirectoryController_"+n.to_s,
"Directory",
directory, memory_control)
}
num_dma.times { |n|
dma_sequencer = DMASequencer.new("DMASequencer_"+n.to_s)
iface_ports << dma_sequencer
net_ports << MI_example_DMAController.new("DMAController_"+n.to_s, "DMA", dma_sequencer)
}
topology = CrossbarTopology.new("theTopology", net_ports)
on_chip_net = Network.new("theNetwork", topology)
RubySystem.init(iface_ports, on_chip_net)
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