ext/mcpat/system.cc - public/gem5 - Git at Google

 /*****************************************************************************
  *                                McPAT
  *                      SOFTWARE LICENSE AGREEMENT
  *            Copyright (c) 2010-2013 Advanced Micro Devices, Inc.
  *                          All Rights Reserved
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met: redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer;
  * redistributions in binary form must reproduce the above copyright
  * notice, this list of conditions and the following disclaimer in the
  * documentation and/or other materials provided with the distribution;
  * neither the name of the copyright holders nor the names of its
  * contributors may be used to endorse or promote products derived from
  * this software without specific prior written permission.

  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  * Authors: Joel Hestness
  *          Yasuko Eckert
  *
  ***************************************************************************/

 #include <algorithm>
 #include <cmath>
 #include <cstdio>
 #include <fstream>
 #include <iostream>
 #include <string>

 #include "array.h"
 #include "basic_circuit.h"
 #include "common.h"
 #include "const.h"
 #include "parameter.h"
 #include "system.h"
 #include "version.h"

 // TODO: Fix this constructor to default initialize all pointers to NULL
 System::System(XMLNode* _xml_data)
         : McPATComponent(_xml_data) {
     int i;
     int currCore = 0;
     int currNOC = 0;
     name = "System";
     set_proc_param();

     // TODO: This loop can (and should) be called by every component in
     // the hierarchy.  Consider moving it to McPATComponent
     int numChildren = xml_data->nChildNode("component");
     for (i = 0; i < numChildren; i++ ) {
         // For each child node of the system,
         XMLNode* childXML = xml_data->getChildNodePtr("component", &i);
         XMLCSTR type = childXML->getAttribute("type");

         if (!type) {
             warnMissingComponentType(childXML->getAttribute("id"));

         } STRCMP(type, "Core") {
             // TODO: If homogeneous cores, and currCore > 0, just copy core 0
             children.push_back(new Core(childXML, currCore, &interface_ip));
             currCore++;
         } STRCMP(type, "CacheUnit") {
             children.push_back(new CacheUnit(childXML, &interface_ip));
         } STRCMP(type, "CacheController") {
             // TODO: Remove reliance on interface_ip - there should be a better
             // way to share global variables than passing, copying
             children.push_back(new CacheController(childXML, &interface_ip));
         } STRCMP(type, "MemoryController") {
             children.push_back(new MemoryController(childXML, &interface_ip));
         } STRCMP(type, "FlashController") {
             children.push_back(new FlashController(childXML, &interface_ip));
         } STRCMP(type, "NIUController") {
             children.push_back(new NIUController(childXML, &interface_ip));
         } STRCMP(type, "PCIeController") {
             children.push_back(new PCIeController(childXML, &interface_ip));
         } STRCMP(type, "Memory") {
             // TODO:
             warnIncompleteComponentType(type);
         } STRCMP(type, "OnChipNetwork") {
             // TODO: Many of the parameters to this constructor should be
             // handled in another way
             children.push_back(new OnChipNetwork(childXML, currNOC,
                                                  &interface_ip));
             currNOC++;
             warnIncompleteComponentType(type);
         } STRCMP(type, "BusInterconnect") {
             // TODO: Many of the parameters to this constructor should be
             // handled in another way
             children.push_back(new BusInterconnect(childXML, &interface_ip));
             warnIncompleteComponentType(type);

         // TODO: Add a directory data type that can handle the directories
         // as defined by certain McScript output
         } else {
             warnUnrecognizedComponent(type);
         }
     }
 }

 void System::displayDeviceType(int device_type_, uint32_t indent) {
     string indent_str(indent, ' ');
     cout << indent_str << "Device Type = ";

     switch ( device_type_ ) {
     case 0:
         cout << "ITRS high performance device type" << endl;
         break;
     case 1:
         cout << "ITRS low standby power device type" << endl;
         break;
     case 2:
         cout << "ITRS low operating power device type" << endl;
         break;
     case 3:
         cout << "LP-DRAM device type" << endl;
         break;
     case 4:
         cout << "COMM-DRAM device type" << endl;
         break;
     default:
         cout << indent_str << "Unknown!" << endl;
         exit(0);
     }
 }

 void System::displayInterconnectType(int interconnect_type_, uint32_t indent) {
     string indent_str(indent, ' ');
     cout << indent_str << "Interconnect metal projection = ";

     switch ( interconnect_type_ ) {
     case 0:
         cout << "aggressive interconnect technology projection" << endl;
         break;
     case 1:
         cout << "conservative interconnect technology projection" << endl;
         break;
     default:
         cout << indent_str << "Unknown!" << endl;
         exit(0);
     }
 }

 // TODO: Migrate this down to the McPATComponent::displayData function
 void System::displayData(uint32_t indent, int plevel) {
     string indent_str(indent, ' ');
     string indent_str_next(indent + 2, ' ');
     if (plevel < 5) {
         cout << "\nMcPAT (version " << VER_MAJOR << "." << VER_MINOR
              << " of " << VER_UPDATE << ") results (current print level is "
              << plevel
              << ", please increase print level to see the details in "
              << "components) " << endl;
     } else {
         cout << "\nMcPAT (version " << VER_MAJOR << "." << VER_MINOR
              << " of " << VER_UPDATE << ") results  (current print level is 5)"
              << endl;
     }

     cout << "*****************************************************************"
          << "************************" << endl;
     cout << indent_str << "Technology " << core_tech_node << " nm" << endl;
     if (longer_channel_device)
         cout << indent_str << "Using Long Channel Devices When Appropriate" << endl;
     displayInterconnectType(interconnect_projection_type, indent);
     cout << indent_str << "Target Clock Rate (MHz) " << target_core_clockrate / 1e6 << endl;
     cout << endl;

     cout << "*****************************************************************"
          << "************************" << endl;

     McPATComponent::displayData(indent, plevel);
 }

 void System::set_proc_param() {
     // TODO: Consider creating a SystemParams class that tracks system-wide
     // parameters like these
     longer_channel_device = false;
     core_tech_node = -1;
     temperature = -1;
     interconnect_projection_type = -1;
     device_type = -1;
     physical_address_width = -1;

     int num_children = xml_data->nChildNode("param");
     int i;
     for (i = 0; i < num_children; i++) {
         XMLNode* paramNode = xml_data->getChildNodePtr("param", &i);
         XMLCSTR node_name = paramNode->getAttribute("name");
         XMLCSTR value = paramNode->getAttribute("value");

         if (!node_name)
             warnMissingParamName(paramNode->getAttribute("id"));

         ASSIGN_FP_IF("core_tech_node", core_tech_node);
         ASSIGN_INT_IF("target_core_clockrate", target_core_clockrate);
         ASSIGN_INT_IF("temperature", temperature);
         ASSIGN_INT_IF("device_type", device_type);
         ASSIGN_INT_IF("longer_channel_device", longer_channel_device);
         ASSIGN_INT_IF("interconnect_projection_type",
                       interconnect_projection_type);
         ASSIGN_INT_IF("machine_bits", data_path_width);
         ASSIGN_INT_IF("virtual_address_width", virtual_address_width);
         ASSIGN_INT_IF("physical_address_width", physical_address_width);
         ASSIGN_INT_IF("virtual_memory_page_size", virtual_memory_page_size);
         ASSIGN_INT_IF("wire_is_mat_type", interface_ip.wire_is_mat_type);
         ASSIGN_INT_IF("wire_os_mat_type", interface_ip.wire_os_mat_type);
         ASSIGN_INT_IF("delay_wt", interface_ip.delay_wt);
         ASSIGN_INT_IF("area_wt", interface_ip.area_wt);
         ASSIGN_INT_IF("dynamic_power_wt", interface_ip.dynamic_power_wt);
         ASSIGN_INT_IF("leakage_power_wt", interface_ip.leakage_power_wt);
         ASSIGN_INT_IF("cycle_time_wt", interface_ip.cycle_time_wt);
         ASSIGN_INT_IF("delay_dev", interface_ip.delay_dev);
         ASSIGN_INT_IF("area_dev", interface_ip.area_dev);
         ASSIGN_INT_IF("dynamic_power_dev", interface_ip.dynamic_power_dev);
         ASSIGN_INT_IF("leakage_power_dev", interface_ip.leakage_power_dev);
         ASSIGN_INT_IF("cycle_time_dev", interface_ip.cycle_time_dev);
         ASSIGN_INT_IF("ed", interface_ip.ed);
         ASSIGN_INT_IF("burst_len", interface_ip.burst_len);
         ASSIGN_INT_IF("int_prefetch_w", interface_ip.int_prefetch_w);
         ASSIGN_INT_IF("page_sz_bits", interface_ip.page_sz_bits);
         ASSIGN_ENUM_IF("rpters_in_htree", interface_ip.rpters_in_htree, bool);
         ASSIGN_INT_IF("ver_htree_wires_over_array",
                       interface_ip.ver_htree_wires_over_array);
         ASSIGN_INT_IF("broadcast_addr_din_over_ver_htrees",
                       interface_ip.broadcast_addr_din_over_ver_htrees);
         ASSIGN_INT_IF("nuca", interface_ip.nuca);
         ASSIGN_INT_IF("nuca_bank_count", interface_ip.nuca_bank_count);
         ASSIGN_ENUM_IF("force_cache_config",
                        interface_ip.force_cache_config, bool);
         ASSIGN_ENUM_IF("wt", interface_ip.wt, Wire_type);
         ASSIGN_INT_IF("force_wiretype", interface_ip.force_wiretype);
         ASSIGN_INT_IF("print_detail", interface_ip.print_detail);
         ASSIGN_ENUM_IF("add_ecc_b_", interface_ip.add_ecc_b_, bool);

         else {
             warnUnrecognizedParam(node_name);
         }
     }

     // Change from MHz to Hz
     target_core_clockrate *= 1e6;
     interconnect_projection_type =
         (interconnect_projection_type == 0) ? 0 : 1;

     num_children = xml_data->nChildNode("stat");
     for (i = 0; i < num_children; i++) {
         XMLNode* statNode = xml_data->getChildNodePtr("stat", &i);
         XMLCSTR node_name = statNode->getAttribute("name");
         XMLCSTR value = statNode->getAttribute("value");

         if (!node_name)
             warnMissingStatName(statNode->getAttribute("id"));

         ASSIGN_FP_IF("total_cycles", total_cycles);

         else {
             warnUnrecognizedStat(node_name);
         }
     }

     if (temperature < 0) {
         errorUnspecifiedParam("temperature");
     }

     if (core_tech_node < 0) {
         errorUnspecifiedParam("core_tech_node");
     }

     if (interconnect_projection_type < 0) {
         errorUnspecifiedParam("interconnect_projection_type");
     }

     if (device_type < 0) {
         errorUnspecifiedParam("device_type");
     }

     if (physical_address_width <= 0) {
         errorNonPositiveParam("physical_address_width");
     }

     if (data_path_width <= 0) {
         errorNonPositiveParam("machine_bits");
     }

     if (total_cycles <= 0) {
         fprintf(stderr, "WARNING: total_cycles <= 0 in system component, ",
                 "power numbers will be funky...\n");
     }

     clockRate = target_core_clockrate;
     execution_time = total_cycles / (target_core_clockrate);

     /* Basic parameters*/
     interface_ip.data_arr_ram_cell_tech_type = device_type;
     interface_ip.data_arr_peri_global_tech_type = device_type;
     interface_ip.tag_arr_ram_cell_tech_type = device_type;
     interface_ip.tag_arr_peri_global_tech_type = device_type;

     interface_ip.ic_proj_type = interconnect_projection_type;
     interface_ip.temp = temperature;
     interface_ip.F_sz_nm = core_tech_node;
     interface_ip.F_sz_um = interface_ip.F_sz_nm / 1000;
     interface_ip.is_main_mem = false;

     // These are there just to make CACTI's error_checking() happy.
     // They are either not actually used or overwritten by each component.
     interface_ip.cache_sz = MIN_BUFFER_SIZE;
     interface_ip.nbanks = 1;
     interface_ip.out_w = 0;
     interface_ip.line_sz = 1;
     interface_ip.assoc = 1;
     interface_ip.num_rw_ports = 1;
     interface_ip.num_search_ports = 1;
     interface_ip.is_cache = true;
     interface_ip.pure_ram = false;
     interface_ip.pure_cam = false;


     //This section of code does not have real meaning; it is just to ensure
     //all data will have initial value to prevent errors.
     //They will be overridden  during each components initialization
     interface_ip.specific_tag = 1;
     interface_ip.tag_w = 64;
     interface_ip.access_mode = 2;

     interface_ip.obj_func_dyn_energy = 0;
     interface_ip.obj_func_dyn_power = 0;
     interface_ip.obj_func_leak_power = 0;
     interface_ip.obj_func_cycle_t = 1;
     interface_ip.num_rw_ports = 1;
     interface_ip.num_rd_ports = 0;
     interface_ip.num_wr_ports = 0;
     interface_ip.num_se_rd_ports = 0;
 }

 System::~System() {
     // TODO: Delete children... do this in McPATComponent
 };
	/*****************************************************************************
	* McPAT
	* SOFTWARE LICENSE AGREEMENT
	* Copyright (c) 2010-2013 Advanced Micro Devices, Inc.
	* All Rights Reserved
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions are
	* met: redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer;
	* redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in the
	* documentation and/or other materials provided with the distribution;
	* neither the name of the copyright holders nor the names of its
	* contributors may be used to endorse or promote products derived from
	* this software without specific prior written permission.

	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	*
	* Authors: Joel Hestness
	* Yasuko Eckert
	*
	***************************************************************************/

	#include <algorithm>
	#include <cmath>
	#include <cstdio>
	#include <fstream>
	#include <iostream>
	#include <string>

	#include "array.h"
	#include "basic_circuit.h"
	#include "common.h"
	#include "const.h"
	#include "parameter.h"
	#include "system.h"
	#include "version.h"

	// TODO: Fix this constructor to default initialize all pointers to NULL
	System::System(XMLNode* _xml_data)
	: McPATComponent(_xml_data) {
	int i;
	int currCore = 0;
	int currNOC = 0;
	name = "System";
	set_proc_param();

	// TODO: This loop can (and should) be called by every component in
	// the hierarchy. Consider moving it to McPATComponent
	int numChildren = xml_data->nChildNode("component");
	for (i = 0; i < numChildren; i++ ) {
	// For each child node of the system,
	XMLNode* childXML = xml_data->getChildNodePtr("component", &i);
	XMLCSTR type = childXML->getAttribute("type");

	if (!type) {
	warnMissingComponentType(childXML->getAttribute("id"));

	} STRCMP(type, "Core") {
	// TODO: If homogeneous cores, and currCore > 0, just copy core 0
	children.push_back(new Core(childXML, currCore, &interface_ip));
	currCore++;
	} STRCMP(type, "CacheUnit") {
	children.push_back(new CacheUnit(childXML, &interface_ip));
	} STRCMP(type, "CacheController") {
	// TODO: Remove reliance on interface_ip - there should be a better
	// way to share global variables than passing, copying
	children.push_back(new CacheController(childXML, &interface_ip));
	} STRCMP(type, "MemoryController") {
	children.push_back(new MemoryController(childXML, &interface_ip));
	} STRCMP(type, "FlashController") {
	children.push_back(new FlashController(childXML, &interface_ip));
	} STRCMP(type, "NIUController") {
	children.push_back(new NIUController(childXML, &interface_ip));
	} STRCMP(type, "PCIeController") {
	children.push_back(new PCIeController(childXML, &interface_ip));
	} STRCMP(type, "Memory") {
	// TODO:
	warnIncompleteComponentType(type);
	} STRCMP(type, "OnChipNetwork") {
	// TODO: Many of the parameters to this constructor should be
	// handled in another way
	children.push_back(new OnChipNetwork(childXML, currNOC,
	&interface_ip));
	currNOC++;
	warnIncompleteComponentType(type);
	} STRCMP(type, "BusInterconnect") {
	// TODO: Many of the parameters to this constructor should be
	// handled in another way
	children.push_back(new BusInterconnect(childXML, &interface_ip));
	warnIncompleteComponentType(type);

	// TODO: Add a directory data type that can handle the directories
	// as defined by certain McScript output
	} else {
	warnUnrecognizedComponent(type);
	}
	}
	}

	void System::displayDeviceType(int device_type_, uint32_t indent) {
	string indent_str(indent, ' ');
	cout << indent_str << "Device Type = ";

	switch ( device_type_ ) {
	case 0:
	cout << "ITRS high performance device type" << endl;
	break;
	case 1:
	cout << "ITRS low standby power device type" << endl;
	break;
	case 2:
	cout << "ITRS low operating power device type" << endl;
	break;
	case 3:
	cout << "LP-DRAM device type" << endl;
	break;
	case 4:
	cout << "COMM-DRAM device type" << endl;
	break;
	default:
	cout << indent_str << "Unknown!" << endl;
	exit(0);
	}
	}

	void System::displayInterconnectType(int interconnect_type_, uint32_t indent) {
	string indent_str(indent, ' ');
	cout << indent_str << "Interconnect metal projection = ";

	switch ( interconnect_type_ ) {
	case 0:
	cout << "aggressive interconnect technology projection" << endl;
	break;
	case 1:
	cout << "conservative interconnect technology projection" << endl;
	break;
	default:
	cout << indent_str << "Unknown!" << endl;
	exit(0);
	}
	}

	// TODO: Migrate this down to the McPATComponent::displayData function
	void System::displayData(uint32_t indent, int plevel) {
	string indent_str(indent, ' ');
	string indent_str_next(indent + 2, ' ');
	if (plevel < 5) {
	cout << "\nMcPAT (version " << VER_MAJOR << "." << VER_MINOR
	<< " of " << VER_UPDATE << ") results (current print level is "
	<< plevel
	<< ", please increase print level to see the details in "
	<< "components) " << endl;
	} else {
	cout << "\nMcPAT (version " << VER_MAJOR << "." << VER_MINOR
	<< " of " << VER_UPDATE << ") results (current print level is 5)"
	<< endl;
	}

	cout << "*****************************************************************"
	<< "************************" << endl;
	cout << indent_str << "Technology " << core_tech_node << " nm" << endl;
	if (longer_channel_device)
	cout << indent_str << "Using Long Channel Devices When Appropriate" << endl;
	displayInterconnectType(interconnect_projection_type, indent);
	cout << indent_str << "Target Clock Rate (MHz) " << target_core_clockrate / 1e6 << endl;
	cout << endl;

	cout << "*****************************************************************"
	<< "************************" << endl;

	McPATComponent::displayData(indent, plevel);
	}

	void System::set_proc_param() {
	// TODO: Consider creating a SystemParams class that tracks system-wide
	// parameters like these
	longer_channel_device = false;
	core_tech_node = -1;
	temperature = -1;
	interconnect_projection_type = -1;
	device_type = -1;
	physical_address_width = -1;

	int num_children = xml_data->nChildNode("param");
	int i;
	for (i = 0; i < num_children; i++) {
	XMLNode* paramNode = xml_data->getChildNodePtr("param", &i);
	XMLCSTR node_name = paramNode->getAttribute("name");
	XMLCSTR value = paramNode->getAttribute("value");

	if (!node_name)
	warnMissingParamName(paramNode->getAttribute("id"));

	ASSIGN_FP_IF("core_tech_node", core_tech_node);
	ASSIGN_INT_IF("target_core_clockrate", target_core_clockrate);
	ASSIGN_INT_IF("temperature", temperature);
	ASSIGN_INT_IF("device_type", device_type);
	ASSIGN_INT_IF("longer_channel_device", longer_channel_device);
	ASSIGN_INT_IF("interconnect_projection_type",
	interconnect_projection_type);
	ASSIGN_INT_IF("machine_bits", data_path_width);
	ASSIGN_INT_IF("virtual_address_width", virtual_address_width);
	ASSIGN_INT_IF("physical_address_width", physical_address_width);
	ASSIGN_INT_IF("virtual_memory_page_size", virtual_memory_page_size);
	ASSIGN_INT_IF("wire_is_mat_type", interface_ip.wire_is_mat_type);
	ASSIGN_INT_IF("wire_os_mat_type", interface_ip.wire_os_mat_type);
	ASSIGN_INT_IF("delay_wt", interface_ip.delay_wt);
	ASSIGN_INT_IF("area_wt", interface_ip.area_wt);
	ASSIGN_INT_IF("dynamic_power_wt", interface_ip.dynamic_power_wt);
	ASSIGN_INT_IF("leakage_power_wt", interface_ip.leakage_power_wt);
	ASSIGN_INT_IF("cycle_time_wt", interface_ip.cycle_time_wt);
	ASSIGN_INT_IF("delay_dev", interface_ip.delay_dev);
	ASSIGN_INT_IF("area_dev", interface_ip.area_dev);
	ASSIGN_INT_IF("dynamic_power_dev", interface_ip.dynamic_power_dev);
	ASSIGN_INT_IF("leakage_power_dev", interface_ip.leakage_power_dev);
	ASSIGN_INT_IF("cycle_time_dev", interface_ip.cycle_time_dev);
	ASSIGN_INT_IF("ed", interface_ip.ed);
	ASSIGN_INT_IF("burst_len", interface_ip.burst_len);
	ASSIGN_INT_IF("int_prefetch_w", interface_ip.int_prefetch_w);
	ASSIGN_INT_IF("page_sz_bits", interface_ip.page_sz_bits);
	ASSIGN_ENUM_IF("rpters_in_htree", interface_ip.rpters_in_htree, bool);
	ASSIGN_INT_IF("ver_htree_wires_over_array",
	interface_ip.ver_htree_wires_over_array);
	ASSIGN_INT_IF("broadcast_addr_din_over_ver_htrees",
	interface_ip.broadcast_addr_din_over_ver_htrees);
	ASSIGN_INT_IF("nuca", interface_ip.nuca);
	ASSIGN_INT_IF("nuca_bank_count", interface_ip.nuca_bank_count);
	ASSIGN_ENUM_IF("force_cache_config",
	interface_ip.force_cache_config, bool);
	ASSIGN_ENUM_IF("wt", interface_ip.wt, Wire_type);
	ASSIGN_INT_IF("force_wiretype", interface_ip.force_wiretype);
	ASSIGN_INT_IF("print_detail", interface_ip.print_detail);
	ASSIGN_ENUM_IF("add_ecc_b_", interface_ip.add_ecc_b_, bool);

	else {
	warnUnrecognizedParam(node_name);
	}
	}

	// Change from MHz to Hz
	target_core_clockrate *= 1e6;
	interconnect_projection_type =
	(interconnect_projection_type == 0) ? 0 : 1;

	num_children = xml_data->nChildNode("stat");
	for (i = 0; i < num_children; i++) {
	XMLNode* statNode = xml_data->getChildNodePtr("stat", &i);
	XMLCSTR node_name = statNode->getAttribute("name");
	XMLCSTR value = statNode->getAttribute("value");

	if (!node_name)
	warnMissingStatName(statNode->getAttribute("id"));

	ASSIGN_FP_IF("total_cycles", total_cycles);

	else {
	warnUnrecognizedStat(node_name);
	}
	}

	if (temperature < 0) {
	errorUnspecifiedParam("temperature");
	}

	if (core_tech_node < 0) {
	errorUnspecifiedParam("core_tech_node");
	}

	if (interconnect_projection_type < 0) {
	errorUnspecifiedParam("interconnect_projection_type");
	}

	if (device_type < 0) {
	errorUnspecifiedParam("device_type");
	}

	if (physical_address_width <= 0) {
	errorNonPositiveParam("physical_address_width");
	}

	if (data_path_width <= 0) {
	errorNonPositiveParam("machine_bits");
	}

	if (total_cycles <= 0) {
	fprintf(stderr, "WARNING: total_cycles <= 0 in system component, ",
	"power numbers will be funky...\n");
	}

	clockRate = target_core_clockrate;
	execution_time = total_cycles / (target_core_clockrate);

	/* Basic parameters*/
	interface_ip.data_arr_ram_cell_tech_type = device_type;
	interface_ip.data_arr_peri_global_tech_type = device_type;
	interface_ip.tag_arr_ram_cell_tech_type = device_type;
	interface_ip.tag_arr_peri_global_tech_type = device_type;

	interface_ip.ic_proj_type = interconnect_projection_type;
	interface_ip.temp = temperature;
	interface_ip.F_sz_nm = core_tech_node;
	interface_ip.F_sz_um = interface_ip.F_sz_nm / 1000;
	interface_ip.is_main_mem = false;

	// These are there just to make CACTI's error_checking() happy.
	// They are either not actually used or overwritten by each component.
	interface_ip.cache_sz = MIN_BUFFER_SIZE;
	interface_ip.nbanks = 1;
	interface_ip.out_w = 0;
	interface_ip.line_sz = 1;
	interface_ip.assoc = 1;
	interface_ip.num_rw_ports = 1;
	interface_ip.num_search_ports = 1;
	interface_ip.is_cache = true;
	interface_ip.pure_ram = false;
	interface_ip.pure_cam = false;


	//This section of code does not have real meaning; it is just to ensure
	//all data will have initial value to prevent errors.
	//They will be overridden during each components initialization
	interface_ip.specific_tag = 1;
	interface_ip.tag_w = 64;
	interface_ip.access_mode = 2;

	interface_ip.obj_func_dyn_energy = 0;
	interface_ip.obj_func_dyn_power = 0;
	interface_ip.obj_func_leak_power = 0;
	interface_ip.obj_func_cycle_t = 1;
	interface_ip.num_rw_ports = 1;
	interface_ip.num_rd_ports = 0;
	interface_ip.num_wr_ports = 0;
	interface_ip.num_se_rd_ports = 0;
	}

	System::~System() {
	// TODO: Delete children... do this in McPATComponent
	};