From e553a7bfa7f0eb47b78632cd63e6e1e814025c9a Mon Sep 17 00:00:00 2001
From: Anthony Gutierrez <atgutier@umich.edu>
Date: Tue, 1 Apr 2014 12:44:30 -0400
Subject: ext: add McPAT source

this patch adds the source for mcpat, a power, area, and timing modeling
framework.
---
 ext/mcpat/Niagara1.xml | 442 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 442 insertions(+)
 create mode 100644 ext/mcpat/Niagara1.xml

(limited to 'ext/mcpat/Niagara1.xml')

diff --git a/ext/mcpat/Niagara1.xml b/ext/mcpat/Niagara1.xml
new file mode 100644
index 000000000..ae748e246
--- /dev/null
+++ b/ext/mcpat/Niagara1.xml
@@ -0,0 +1,442 @@
+<?xml version="1.0" ?>
+<component id="root" name="root">
+	<component id="system" name="system">
+		<!--McPAT will skip the components if number is set to 0 -->
+		<param name="number_of_cores" value="8"/>
+		<param name="number_of_L1Directories" value="4"/>
+		<param name="number_of_L2Directories" value="0"/>
+		<param name="number_of_L2s" value="4"/> <!-- This number means how many L2 clusters in each cluster there can be multiple banks/ports -->
+		<param name="number_of_L3s" value="0"/> <!-- This number means how many L3 clusters -->
+		<param name="number_of_NoCs" value="1"/>
+		<param name="homogeneous_cores" value="1"/><!--1 means homo -->
+		<param name="homogeneous_L2s" value="1"/>
+		<param name="homogeneous_L1Directorys" value="1"/>
+		<param name="homogeneous_L2Directorys" value="1"/>
+		<param name="homogeneous_L3s" value="1"/>
+		<param name="homogeneous_ccs" value="1"/><!--cache coherece hardware -->
+		<param name="homogeneous_NoCs" value="1"/>
+		<param name="core_tech_node" value="90"/><!-- nm -->
+		<param name="target_core_clockrate" value="1200"/><!--MHz -->
+		<param name="temperature" value="380"/> <!-- Kelvin -->
+		<param name="number_cache_levels" value="2"/>
+		<param name="interconnect_projection_type" value="0"/><!--0: agressive wire technology; 1: conservative wire technology -->
+		<param name="device_type" value="0"/><!--0: HP(High Performance Type); 1: LSTP(Low standby power) 2: LOP (Low Operating Power)  -->
+		<param name="longer_channel_device" value="1"/><!-- 0 no use; 1 use when possible -->
+		<param name="machine_bits" value="64"/>
+		<param name="virtual_address_width" value="64"/>
+		<param name="physical_address_width" value="52"/>
+		<param name="virtual_memory_page_size" value="4096"/>
+		<stat name="total_cycles" value="100000"/>
+		<stat name="idle_cycles" value="0"/>
+		<stat name="busy_cycles"  value="100000"/>
+			<!--This page size(B) is complete different from the page size in Main memo secction. this page size is the size of 
+			virtual memory from OS/Archi perspective; the page size in Main memo secction is the actuall physical line in a DRAM bank  -->
+		<!-- *********************** cores ******************* -->
+		<component id="system.core0" name="core0">
+			<!-- Core property -->
+			<param name="clock_rate" value="1200"/>
+			<param name="instruction_length" value="32"/>
+			<param name="opcode_width" value="9"/>
+			<!-- address width determins the tag_width in Cache, LSQ and buffers in cache controller 
+			default value is machine_bits, if not set --> 
+			<param name="machine_type" value="1"/><!-- 1 inorder; 0 OOO-->
+			<!-- inorder/OoO -->
+			<param name="number_hardware_threads" value="4"/>
+			<!-- number_instruction_fetch_ports(icache ports) is always 1 in single-thread processor,
+			it only may be more than one in SMT processors. BTB ports always equals to fetch ports since 
+			branch information in consective branch instructions in the same fetch group can be read out from BTB once.--> 
+			<param name="fetch_width" value="1"/>
+			<!-- fetch_width determins the size of cachelines of L1 cache block -->
+			<param name="number_instruction_fetch_ports" value="1"/>
+			<param name="decode_width" value="1"/>
+			<!-- decode_width determins the number of ports of the 
+			renaming table (both RAM and CAM) scheme -->
+			<param name="issue_width" value="1"/>
+			<!-- issue_width determins the number of ports of Issue window and other logic 
+			as in the complexity effective proccessors paper; issue_width==dispatch_width -->
+			<param name="commit_width" value="1"/>
+			<!-- commit_width determins the number of ports of register files -->
+			<param name="fp_issue_width" value="1"/>
+			<param name="prediction_width" value="0"/> 
+			<!-- number of branch instructions can be predicted simultannouesl-->
+			<!-- Current version of McPAT does not distinguish int and floating point pipelines 
+			Theses parameters are reserved for future use.--> 
+			<param name="pipelines_per_core" value="1,1"/>
+			<!--integer_pipeline and floating_pipelines, if the floating_pipelines is 0, then the pipeline is shared-->
+			<param name="pipeline_depth" value="6,6"/>
+			<!-- pipeline depth of int and fp, if pipeline is shared, the second number is the average cycles of fp ops -->
+			<!-- issue and exe unit-->
+			<param name="ALU_per_core" value="1"/>
+			<!-- contains an adder, a shifter, and a logical unit -->
+			<param name="MUL_per_core" value="1"/>
+			<!-- For MUL and Div -->
+			<param name="FPU_per_core" value="0.125"/>		
+			<!-- buffer between IF and ID stage -->
+			<param name="instruction_buffer_size" value="16"/>
+			<!-- buffer between ID and sche/exe stage -->
+			<param name="decoded_stream_buffer_size" value="16"/>
+			<param name="instruction_window_scheme" value="0"/><!-- 0 PHYREG based, 1 RSBASED-->
+			<!-- McPAT support 2 types of OoO cores, RS based and physical reg based-->
+			<param name="instruction_window_size" value="16"/>
+			<param name="fp_instruction_window_size" value="16"/>
+			<!-- the instruction issue Q as in Alpha 21264; The RS as in Intel P6 -->
+			<param name="ROB_size" value="80"/>
+			<!-- each in-flight instruction has an entry in ROB -->
+			<!-- registers -->
+			<param name="archi_Regs_IRF_size" value="32"/>			
+			<param name="archi_Regs_FRF_size" value="32"/>
+			<!--  if OoO processor, phy_reg number is needed for renaming logic, 
+			renaming logic is for both integer and floating point insts.  -->
+			<param name="phy_Regs_IRF_size" value="80"/>
+			<param name="phy_Regs_FRF_size" value="80"/>
+			<!-- rename logic -->
+			<param name="rename_scheme" value="0"/>
+			<!-- can be RAM based(0) or CAM based(1) rename scheme 
+			RAM-based scheme will have free list, status table;
+			CAM-based scheme have the valid bit in the data field of the CAM 
+			both RAM and CAM need RAM-based checkpoint table, checkpoint_depth=# of in_flight instructions;
+			Detailed RAT Implementation see TR -->
+			<param name="register_windows_size" value="8"/>
+			<!-- how many windows in the windowed register file, sun processors;
+			no register windowing is used when this number is 0 -->
+			<!-- In OoO cores, loads and stores can be issued whether inorder(Pentium Pro) or (OoO)out-of-order(Alpha),
+			They will always try to exeute out-of-order though. -->
+			<param name="LSU_order" value="inorder"/>
+			<param name="store_buffer_size" value="32"/>
+			<!-- By default, in-order cores do not have load buffers -->
+			<param name="load_buffer_size" value="32"/>	
+			<!-- number of ports refer to sustainable concurrent memory accesses --> 
+			<param name="memory_ports" value="1"/>	
+			<!-- max_allowed_in_flight_memo_instructions determins the # of ports of load and store buffer
+			as well as the ports of Dcache which is connected to LSU -->	
+			<!-- dual-pumped Dcache can be used to save the extra read/write ports -->
+			<param name="RAS_size" value="32"/>						
+			<!-- general stats, defines simulation periods;require total, idle, and busy cycles for senity check  -->
+			<!-- please note: if target architecture is X86, then all the instrucions refer to (fused) micro-ops -->
+			<stat name="total_instructions" value="800000"/>
+			<stat name="int_instructions" value="600000"/>
+			<stat name="fp_instructions" value="20000"/>
+			<stat name="branch_instructions" value="0"/>
+			<stat name="branch_mispredictions" value="0"/>
+			<stat name="load_instructions" value="100000"/>
+			<stat name="store_instructions" value="100000"/>
+			<stat name="committed_instructions" value="800000"/>
+			<stat name="committed_int_instructions" value="600000"/>
+			<stat name="committed_fp_instructions" value="20000"/>
+			<stat name="pipeline_duty_cycle" value="0.6"/><!--<=1, runtime_ipc/peak_ipc; averaged for all cores if homogenous -->
+			<!-- the following cycle stats are used for heterogeneouse cores only, 
+				please ignore them if homogeneouse cores -->
+			<stat name="total_cycles" value="100000"/>
+		    <stat name="idle_cycles" value="0"/>
+		    <stat name="busy_cycles"  value="100000"/>
+			<!-- instruction buffer stats -->
+			<!-- ROB stats, both RS and Phy based OoOs have ROB
+			performance simulator should capture the difference on accesses,
+			otherwise, McPAT has to guess based on number of commited instructions. -->
+			<stat name="ROB_reads" value="263886"/>
+			<stat name="ROB_writes" value="263886"/>
+			<!-- RAT accesses -->
+			<stat name="rename_accesses" value="263886"/>
+			<stat name="fp_rename_accesses" value="263886"/>
+			<!-- decode and rename stage use this, should be total ic - nop -->
+			<!-- Inst window stats -->
+			<stat name="inst_window_reads" value="263886"/>
+			<stat name="inst_window_writes" value="263886"/>
+			<stat name="inst_window_wakeup_accesses" value="263886"/>
+			<stat name="fp_inst_window_reads" value="263886"/>
+			<stat name="fp_inst_window_writes" value="263886"/>
+			<stat name="fp_inst_window_wakeup_accesses" value="263886"/>
+			<!--  RF accesses -->
+			<stat name="int_regfile_reads" value="1600000"/>
+			<stat name="float_regfile_reads" value="40000"/>
+			<stat name="int_regfile_writes" value="800000"/>
+			<stat name="float_regfile_writes" value="20000"/>
+			<!-- accesses to the working reg -->
+			<stat name="function_calls" value="5"/>
+			<stat name="context_switches" value="260343"/>
+			<!-- Number of Windowes switches (number of function calls and returns)-->
+			<!-- Alu stats by default, the processor has one FPU that includes the divider and 
+			 multiplier. The fpu accesses should include accesses to multiplier and divider  -->
+			<stat name="ialu_accesses" value="800000"/>			
+			<stat name="fpu_accesses" value="10000"/>
+			<stat name="mul_accesses" value="100000"/>
+			<stat name="cdb_alu_accesses" value="1000000"/>
+			<stat name="cdb_mul_accesses" value="0"/>
+			<stat name="cdb_fpu_accesses" value="0"/>
+			<!-- multiple cycle accesses should be counted multiple times, 
+			otherwise, McPAT can use internal counter for different floating point instructions 
+			to get final accesses. But that needs detailed info for floating point inst mix -->
+			<!--  currently the performance simulator should 
+			make sure all the numbers are final numbers, 
+			including the explicit read/write accesses, 
+			and the implicite accesses such as replacements and etc.
+			Future versions of McPAT may be able to reason the implicite access
+			based on param and stats of last level cache
+			The same rule applies to all cache access stats too!  -->
+			<!-- following is AF for max power computation. 
+				Do not change them, unless you understand them-->
+			<stat name="IFU_duty_cycle" value="0.25"/>			
+			<stat name="LSU_duty_cycle" value="0.25"/>
+			<stat name="MemManU_I_duty_cycle" value="1"/>
+			<stat name="MemManU_D_duty_cycle" value="0.25"/>
+			<stat name="ALU_duty_cycle" value="0.9"/>
+			<stat name="MUL_duty_cycle" value="0.5"/>
+			<stat name="FPU_duty_cycle" value="0.4"/>
+			<stat name="ALU_cdb_duty_cycle" value="0.9"/>
+			<stat name="MUL_cdb_duty_cycle" value="0.5"/>
+			<stat name="FPU_cdb_duty_cycle" value="0.4"/>
+			<component id="system.core0.predictor" name="PBT">
+				<!-- branch predictor; tournament predictor see Alpha implementation -->
+				<param name="local_predictor_size" value="10,3"/>
+				<param name="local_predictor_entries" value="1024"/>
+				<param name="global_predictor_entries" value="4096"/>
+				<param name="global_predictor_bits" value="2"/>
+				<param name="chooser_predictor_entries" value="4096"/>
+				<param name="chooser_predictor_bits" value="2"/>
+				<!-- These parameters can be combined like below in next version
+				<param name="load_predictor" value="10,3,1024"/>
+				<param name="global_predictor" value="4096,2"/>
+				<param name="predictor_chooser" value="4096,2"/>
+				-->
+			</component>
+			<component id="system.core0.itlb" name="itlb">
+				<param name="number_entries" value="64"/>
+				<stat name="total_accesses" value="800000"/>
+				<stat name="total_misses" value="4"/>
+				<stat name="conflicts" value="0"/>	
+				<!-- there is no write requests to itlb although writes happen to itlb after miss, 
+				which is actually a replacement -->
+			</component>
+			<component id="system.core0.icache" name="icache">
+				<!-- there is no write requests to itlb although writes happen to it after miss, 
+				which is actually a replacement -->
+				<param name="icache_config" value="16384,32,4,1,1,3,8,0"/>
+				<!-- the parameters are capacity,block_width, associativity, bank, throughput w.r.t. core clock, latency w.r.t. core clock,output_width, cache policy -->
+				<!-- cache_policy;//0 no write or write-though with non-write allocate;1 write-back with write-allocate -->
+				<param name="buffer_sizes" value="16, 16, 16,0"/>
+				<!-- cache controller buffer sizes: miss_buffer_size(MSHR),fill_buffer_size,prefetch_buffer_size,wb_buffer_size--> 
+				<stat name="read_accesses" value="200000"/>
+				<stat name="read_misses" value="0"/>
+				<stat name="conflicts" value="0"/>				
+			</component>
+			<component id="system.core0.dtlb" name="dtlb">
+				<param name="number_entries" value="64"/>
+				<stat name="total_accesses" value="200000"/>
+				<stat name="total_misses" value="4"/>
+				<stat name="conflicts" value="0"/>	
+			</component>
+			<component id="system.core0.dcache" name="dcache">
+			        <!-- all the buffer related are optional -->
+				<param name="dcache_config" value="8192,16,4,1,1,3,16,0"/>
+				<param name="buffer_sizes" value="16, 16, 16, 16"/>
+				<!-- cache controller buffer sizes: miss_buffer_size(MSHR),fill_buffer_size,prefetch_buffer_size,wb_buffer_size-->	
+				<stat name="read_accesses" value="200000"/>
+				<stat name="write_accesses" value="27276"/>
+				<stat name="read_misses" value="1632"/>
+				<stat name="write_misses" value="183"/>
+				<stat name="conflicts" value="0"/>	
+			</component>
+			<component id="system.core0.BTB" name="BTB">
+			        <!-- all the buffer related are optional -->
+				<param name="BTB_config" value="8192,4,2,1, 1,3"/>
+				<!-- the parameters are capacity,block_width,associativity,bank, throughput w.r.t. core clock, latency w.r.t. core clock,-->
+			</component>
+	</component>
+		<component id="system.L1Directory0" name="L1Directory0">
+				<param name="Directory_type" value="0"/>
+			    <!--0 cam based shadowed tag. 1 directory cache -->	
+				<param name="Dir_config" value="2048,1,0,1, 4, 4,8"/>
+				<!-- the parameters are capacity,block_width, associativity,bank, throughput w.r.t. core clock, latency w.r.t. core clock,-->
+			    <param name="buffer_sizes" value="8, 8, 8, 8"/>	
+				<!-- all the buffer related are optional -->
+			    <param name="clockrate" value="1200"/>
+				<param name="ports" value="1,1,1"/>
+				<!-- number of r, w, and rw search ports -->
+				<param name="device_type" value="0"/>
+				<!-- altough there are multiple access types, 
+				Performance simulator needs to cast them into reads or writes
+				e.g. the invalidates can be considered as writes -->
+				<stat name="read_accesses" value="800000"/>
+				<stat name="write_accesses" value="27276"/>
+				<stat name="read_misses" value="1632"/>
+				<stat name="write_misses" value="183"/>
+				<stat name="conflicts" value="20"/>	
+				<stat name="duty_cycle" value="0.45"/>	
+		</component>
+		<component id="system.L2Directory0" name="L2Directory0">
+				<param name="Directory_type" value="1"/>
+			    <!--0 cam based shadowed tag. 1 directory cache -->	
+				<param name="Dir_config" value="1048576,16,16,1,2, 100"/>
+				<!-- the parameters are capacity,block_width, associativity,bank, throughput w.r.t. core clock, latency w.r.t. core clock,-->
+			    <param name="buffer_sizes" value="8, 8, 8, 8"/>	
+				<!-- all the buffer related are optional -->
+			    <param name="clockrate" value="1200"/>
+				<param name="ports" value="1,1,1"/>
+				<!-- number of r, w, and rw search ports -->
+				<param name="device_type" value="0"/>
+				<!-- altough there are multiple access types, 
+				Performance simulator needs to cast them into reads or writes
+				e.g. the invalidates can be considered as writes -->
+				<stat name="read_accesses" value="58824"/>
+				<stat name="write_accesses" value="27276"/>
+				<stat name="read_misses" value="1632"/>
+				<stat name="write_misses" value="183"/>
+				<stat name="conflicts" value="100"/>
+			    <stat name="duty_cycle" value="0.45"/>		
+		</component>
+		<component id="system.L20" name="L20">
+			<!-- all the buffer related are optional -->
+				<param name="L2_config" value="786432,64,16,1, 4,23, 64, 1"/>
+			    <!-- consider 4-way bank interleaving for Niagara 1 -->
+				<!-- the parameters are capacity,block_width, associativity, bank, throughput w.r.t. core clock, latency w.r.t. core clock,output_width, cache policy -->
+				<param name="buffer_sizes" value="16, 16, 16, 16"/>
+				<!-- cache controller buffer sizes: miss_buffer_size(MSHR),fill_buffer_size,prefetch_buffer_size,wb_buffer_size-->	
+				<param name="clockrate" value="1200"/>
+				<param name="ports" value="1,1,1"/>
+				<!-- number of r, w, and rw ports -->
+				<param name="device_type" value="0"/>
+				<stat name="read_accesses" value="200000"/>
+				<stat name="write_accesses" value="0"/>
+				<stat name="read_misses" value="0"/>
+				<stat name="write_misses" value="0"/>
+				<stat name="conflicts" value="0"/>	
+			    <stat name="duty_cycle" value="0.5"/>	
+		</component>
+		
+<!--**********************************************************************-->
+<component id="system.L30" name="L30">
+				<param name="L3_config" value="1048576,64,16,1, 2,100, 64,1"/>
+				<!-- the parameters are capacity,block_width, associativity, bank, throughput w.r.t. core clock, latency w.r.t. core clock,output_width, cache policy -->
+				<param name="clockrate" value="3500"/>
+				<param name="ports" value="1,1,1"/>
+				<!-- number of r, w, and rw ports -->
+				<param name="device_type" value="0"/>
+				<param name="buffer_sizes" value="16, 16, 16, 16"/>
+				<!-- cache controller buffer sizes: miss_buffer_size(MSHR),fill_buffer_size,prefetch_buffer_size,wb_buffer_size-->	
+				<stat name="read_accesses" value="58824"/>
+				<stat name="write_accesses" value="27276"/>
+				<stat name="read_misses" value="1632"/>
+				<stat name="write_misses" value="183"/>
+				<stat name="conflicts" value="0"/>	
+	            <stat name="duty_cycle" value="0.35"/>	
+		</component>
+<!--**********************************************************************-->
+		<component id="system.NoC0" name="noc0">
+			<param name="clockrate" value="1200"/>
+			<param name="type" value="1"/>
+			<!-- 1 NoC, O bus -->
+			<param name="horizontal_nodes" value="2"/>
+			<param name="vertical_nodes" value="1"/>
+			<param name="has_global_link" value="0"/>
+			<!-- 1 has global link, 0 does not have global link -->
+			<param name="link_throughput" value="1"/><!--w.r.t clock -->
+			<param name="link_latency" value="1"/><!--w.r.t clock -->
+			<!-- througput >= latency -->
+			<!-- Router architecture -->
+			<param name="input_ports" value="8"/>
+			<param name="output_ports" value="5"/>
+			<param name="virtual_channel_per_port" value="1"/>
+			<!-- input buffer; in classic routers only input ports need buffers -->
+			<param name="flit_bits" value="136"/>
+			<param name="input_buffer_entries_per_vc" value="2"/><!--VCs within the same ports share input buffers whose size is propotional to the number of VCs-->
+			<param name="chip_coverage" value="1"/>
+			<!-- When multiple NOC present, one NOC will cover part of the whole chip. chip_coverage <=1 -->
+			<stat name="total_accesses" value="360000"/>
+			<!-- This is the number of total accesses within the whole network not for each router -->
+			<stat name="duty_cycle" value="0.6"/>
+		</component>
+		
+<!--**********************************************************************-->
+		<component id="system.mem" name="mem">
+			<!-- Main memory property -->
+			<param name="mem_tech_node" value="32"/>
+			<param name="device_clock" value="200"/><!--MHz, this is clock rate of the actual memory device, not the FSB -->
+			<param name="peak_transfer_rate" value="3200"/><!--MB/S-->
+			<param name="internal_prefetch_of_DRAM_chip" value="4"/>
+			<!-- 2 for DDR, 4 for DDR2, 8 for DDR3...-->
+			<!-- the device clock, peak_transfer_rate, and the internal prefetch decide the DIMM property -->
+			<!-- above numbers can be easily found from Wikipedia -->
+			<param name="capacity_per_channel" value="4096"/> <!-- MB -->
+			<!-- capacity_per_Dram_chip=capacity_per_channel/number_of_dimms/number_ranks/Dram_chips_per_rank
+			Current McPAT assumes single DIMMs are used.--> 		
+			<param name="number_ranks" value="2"/>
+			<param name="num_banks_of_DRAM_chip" value="8"/>			
+			<param name="Block_width_of_DRAM_chip" value="64"/> <!-- B -->
+			<param name="output_width_of_DRAM_chip" value="8"/>
+			<!--number of Dram_chips_per_rank=" 72/output_width_of_DRAM_chip-->
+			<!--number of Dram_chips_per_rank=" 72/output_width_of_DRAM_chip-->
+			<param name="page_size_of_DRAM_chip" value="8"/> <!-- 8 or 16 -->
+			<param name="burstlength_of_DRAM_chip" value="8"/>
+			<stat name="memory_accesses" value="1052"/>
+			<stat name="memory_reads" value="1052"/>
+			<stat name="memory_writes" value="1052"/>									
+		</component>
+		<component id="system.mc" name="mc">
+			<!-- Memeory controllers are for DDR(2,3...) DIMMs -->
+			<!-- current version of McPAT uses published values for base parameters of memory controller
+			improvments on MC will be added in later versions. -->
+			<param name="type" value="0"/> <!-- 1: low power; 0 high performance -->
+			<param name="mc_clock" value="200"/><!--DIMM IO bus clock rate MHz DDR2-400 for Niagara 1--> 
+			<param name="peak_transfer_rate" value="3200"/><!--MB/S-->
+			<param name="block_size" value="64"/><!--B-->
+			<param name="number_mcs" value="4"/>
+			<!-- current McPAT only supports homogeneous memory controllers -->
+			<param name="memory_channels_per_mc" value="1"/>
+			<param name="number_ranks" value="2"/>
+			<param name="withPHY" value="0"/>
+			<!-- # of ranks of each channel-->
+			<param name="req_window_size_per_channel" value="32"/>
+			<param name="IO_buffer_size_per_channel" value="32"/>
+			<param name="databus_width" value="128"/>
+			<param name="addressbus_width" value="51"/>
+			<!-- McPAT will add the control bus width to the addressbus width automatically -->
+			<stat name="memory_accesses" value="33333"/>
+			<stat name="memory_reads" value="16667"/>
+			<stat name="memory_writes" value="16667"/>
+			<!-- McPAT does not track individual mc, instead, it takes the total accesses and calculate 
+			the average power per MC or per channel. This is sufficent for most application. 
+			Further trackdown can be easily added in later versions. -->  			
+		</component>
+<!--**********************************************************************-->
+		<component id="system.niu" name="niu">
+			<!-- On chip 10Gb Ethernet NIC, including XAUI Phy and MAC controller  -->
+			<!-- For a minimum IP packet size of 84B at 10Gb/s, a new packet arrives every 67.2ns. 
+				 the low bound of clock rate of a 10Gb MAC is 150Mhz -->
+			<param name="type" value="0"/> <!-- 1: low power; 0 high performance -->
+			<param name="clockrate" value="350"/>
+			<param name="number_units" value="0"/> <!-- unlike PCIe and memory controllers, each Ethernet controller only have one port -->
+			<stat name="duty_cycle" value="1.0"/> <!-- achievable max load <= 1.0 -->
+			<stat name="total_load_perc" value="0.7"/> <!-- ratio of total achived load to total achivable bandwidth  -->
+			<!-- McPAT does not track individual nic, instead, it takes the total accesses and calculate 
+			the average power per nic or per channel. This is sufficent for most application. -->  			
+		</component>
+<!--**********************************************************************-->
+		<component id="system.pcie" name="pcie">
+			<!-- On chip PCIe controller, including Phy-->
+			<!-- For a minimum PCIe packet size of 84B at 8Gb/s per lane (PCIe 3.0), a new packet arrives every 84ns. 
+				 the low bound of clock rate of a PCIe per lane logic is 120Mhz -->
+			<param name="type" value="0"/> <!-- 1: low power; 0 high performance -->
+			<param name="withPHY" value="1"/>
+			<param name="clockrate" value="350"/>
+			<param name="number_units" value="0"/>
+			<param name="num_channels" value="8"/> <!-- 2 ,4 ,8 ,16 ,32 -->
+			<stat name="duty_cycle" value="1.0"/> <!-- achievable max load <= 1.0 -->
+			<stat name="total_load_perc" value="0.7"/> <!-- Percentage of total achived load to total achivable bandwidth  -->
+			<!-- McPAT does not track individual pcie controllers, instead, it takes the total accesses and calculate 
+			the average power per pcie controller or per channel. This is sufficent for most application. -->  			
+		</component>
+<!--**********************************************************************-->
+		<component id="system.flashc" name="flashc">
+		    <param name="number_flashcs" value="0"/>
+			<param name="type" value="1"/> <!-- 1: low power; 0 high performance -->
+            <param name="withPHY" value="1"/>
+			<param name="peak_transfer_rate" value="200"/><!--Per controller sustainable reak rate MB/S -->
+			<stat name="duty_cycle" value="1.0"/> <!-- achievable max load <= 1.0 -->
+			<stat name="total_load_perc" value="0.7"/> <!-- Percentage of total achived load to total achivable bandwidth  -->
+			<!-- McPAT does not track individual flash controller, instead, it takes the total accesses and calculate 
+			the average power per fc or per channel. This is sufficent for most application -->  			
+		</component>
+<!--**********************************************************************-->
+
+		</component>
+</component>
-- 
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