ext/mcpat/cacti/const.h - public/gem5 - Git at Google

 /*****************************************************************************
  *                                McPAT/CACTI
  *                      SOFTWARE LICENSE AGREEMENT
  *            Copyright 2012 Hewlett-Packard Development Company, L.P.
  *            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.
  *
  ***************************************************************************/

 #ifndef __CONST_H__
 #define __CONST_H__

 #include <math.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>

 /*  The following are things you might want to change
  *  when compiling
  */

 /*
  * Address bits in a word, and number of output bits from the cache
  */

 /*
 was: #define ADDRESS_BITS 32
 now: I'm using 42 bits as in the Power4,
 since that's bigger then the 36 bits on the Pentium 4
 and 40 bits on the Opteron
 */
 const int ADDRESS_BITS = 42;

 /*dt: In addition to the tag bits, the tags also include 1 valid bit, 1 dirty bit, 2 bits for a 4-state
   cache coherency protocoll (MESI), 1 bit for MRU (change this to log(ways) for full LRU).
   So in total we have 1 + 1 + 2 + 1 = 5 */
 const int EXTRA_TAG_BITS = 5;

 /* limits on the various N parameters */

 const unsigned int MAXDATAN     = 512;      // maximum for Ndwl and Ndbl
 const unsigned int MAXSUBARRAYS = 1048576;  // maximum subarrays for data and tag arrays
 const unsigned int MAXDATASPD   = 256;      // maximum for Nspd
 const unsigned int MAX_COL_MUX  = 256;


 #define ROUTER_TYPES 3
 #define WIRE_TYPES 6

 const double Cpolywire = 0;


 /* Threshold voltages (as a proportion of Vdd)
    If you don't know them, set all values to 0.5 */
 #define VTHFA1         0.452
 #define VTHFA2         0.304
 #define VTHFA3         0.420
 #define VTHFA4         0.413
 #define VTHFA5         0.405
 #define VTHFA6         0.452
 #define VSINV          0.452
 #define VTHCOMPINV     0.437
 #define VTHMUXNAND     0.548  // TODO : this constant must be revisited
 #define VTHEVALINV     0.452
 #define VTHSENSEEXTDRV 0.438


 //WmuxdrvNANDn and WmuxdrvNANDp are no longer being used but it's part of the old
 //delay_comparator function which we are using exactly as it used to be, so just setting these to 0
 const double WmuxdrvNANDn = 0;
 const double WmuxdrvNANDp = 0;


 /*===================================================================*/
 /*
  * The following are things you probably wouldn't want to change.
  */

 #define BIGNUM 1e30
 #define INF 9999999
 #define MAX(a,b) (((a)>(b))?(a):(b))
 #define MIN(a,b) (((a)<(b))?(a):(b))

 /* Used to communicate with the horowitz model */
 #define RISE 1
 #define FALL 0
 #define NCH  1
 #define PCH  0


 #define EPSILON 0.5 //v4.1: This constant is being used in order to fix floating point -> integer
 //conversion problems that were occuring within CACTI. Typical problem that was occuring was
 //that with different compilers a floating point number like 3.0 would get represented as either
 //2.9999....or 3.00000001 and then the integer part of the floating point number (3.0) would
 //be computed differently depending on the compiler. What we are doing now is to replace
 //int (x) with (int) (x+EPSILON) where EPSILON is 0.5. This would fix such problems. Note that
 //this works only when x is an integer >= 0.
 /*
  * Sheng thinks this is more a solution to solve the simple truncate problem
  * (http://www.cs.tut.fi/~jkorpela/round.html) rather than the problem mentioned above.
  * Unfortunately, this solution causes nasty bugs (different results when using O0 and O3).
  * Moreover, round is not correct in CACTI since when an extra fraction of bit/line is needed,
  * we need to provide a complete bit/line even the fraction is just 0.01.
  * So, in later version than 6.5 we use (int)ceil() to get double to int conversion.
  */

 #define EPSILON2 0.1
 #define EPSILON3 0.6


 #define MINSUBARRAYROWS 16 //For simplicity in modeling, for the row decoding structure, we assume
 //that each row predecode block is composed of at least one 2-4 decoder. When the outputs from the
 //row predecode blocks are combined this means that there are at least 4*4=16 row decode outputs
 #define MAXSUBARRAYROWS 262144 //Each row predecode block produces a max of 2^9 outputs. So
 //the maximum number of row decode outputs will be 2^9*2^9
 #define MINSUBARRAYCOLS 2
 #define MAXSUBARRAYCOLS 262144


 #define INV 0
 #define NOR 1
 #define NAND 2


 #define NUMBER_TECH_FLAVORS 4

 #define NUMBER_INTERCONNECT_PROJECTION_TYPES 2 //aggressive and conservative
 //0 = Aggressive projections, 1 = Conservative projections
 #define NUMBER_WIRE_TYPES 4 //local, semi-global and global
 //1 = 'Semi-global' wire type, 2 = 'Global' wire type


 const int dram_cell_tech_flavor = 3;


 #define VBITSENSEMIN 0.08 //minimum bitline sense voltage is fixed to be 80 mV.

 #define fopt 4.0

 #define INPUT_WIRE_TO_INPUT_GATE_CAP_RATIO 0
 #define BUFFER_SEPARATION_LENGTH_MULTIPLIER 1
 #define NUMBER_MATS_PER_REDUNDANT_MAT 8

 #define NUMBER_STACKED_DIE_LAYERS 1

 // this variable can be set to carry out solution optimization for
 // a maximum area allocation.
 #define STACKED_DIE_LAYER_ALLOTED_AREA_mm2 0 //6.24 //6.21//71.5

 // this variable can also be employed when solution optimization
 // with maximum area allocation is carried out.
 #define MAX_PERCENT_AWAY_FROM_ALLOTED_AREA 50

 // this variable can also be employed when solution optimization
 // with maximum area allocation is carried out.
 #define MIN_AREA_EFFICIENCY 20

 // this variable can be employed when solution with a desired
 // aspect ratio is required.
 #define STACKED_DIE_LAYER_ASPECT_RATIO 1

 // this variable can be employed when solution with a desired
 // aspect ratio is required.
 #define MAX_PERCENT_AWAY_FROM_ASPECT_RATIO 101

 // this variable can be employed to carry out solution optimization
 // for a certain target random cycle time.
 #define TARGET_CYCLE_TIME_ns 1000000000

 #define NUMBER_PIPELINE_STAGES 4

 // this can be used to model the length of interconnect
 // between a bank and a crossbar
 #define LENGTH_INTERCONNECT_FROM_BANK_TO_CROSSBAR 0 //3791 // 2880//micron

 #define IS_CROSSBAR 0
 #define NUMBER_INPUT_PORTS_CROSSBAR 8
 #define NUMBER_OUTPUT_PORTS_CROSSBAR 8
 #define NUMBER_SIGNALS_PER_PORT_CROSSBAR 256


 #define MAT_LEAKAGE_REDUCTION_DUE_TO_SLEEP_TRANSISTORS_FACTOR 1
 #define LEAKAGE_REDUCTION_DUE_TO_LONG_CHANNEL_HP_TRANSISTORS_FACTOR 1

 #define PAGE_MODE 0

 #define MAIN_MEM_PER_CHIP_STANDBY_CURRENT_mA 60
 // We are actually not using this variable in the CACTI code. We just want to acknowledge that
 // this current should be multiplied by the DDR(n) system VDD value to compute the standby power
 // consumed during precharge.


 const double VDD_STORAGE_LOSS_FRACTION_WORST = 0.125;
 const double CU_RESISTIVITY = 0.022; //ohm-micron
 const double BULK_CU_RESISTIVITY = 0.018; //ohm-micron
 const double PERMITTIVITY_FREE_SPACE = 8.854e-18; //F/micron

 const static uint32_t sram_num_cells_wl_stitching_ = 16;
 const static uint32_t dram_num_cells_wl_stitching_ = 64;
 const static uint32_t comm_dram_num_cells_wl_stitching_ = 256;
 const static double num_bits_per_ecc_b_          = 8.0;

 const double    bit_to_byte  = 8.0;

 #define MAX_NUMBER_GATES_STAGE 20
 #define MAX_NUMBER_HTREE_NODES 20
 #define NAND2_LEAK_STACK_FACTOR 0.2
 #define NAND3_LEAK_STACK_FACTOR 0.2
 #define NOR2_LEAK_STACK_FACTOR 0.2
 #define INV_LEAK_STACK_FACTOR  0.5
 #define MAX_NUMBER_ARRAY_PARTITIONS 1000000

 // abbreviations used in this project
 // ----------------------------------
 //
 //  num  : number
 //  rw   : read/write
 //  rd   : read
 //  wr   : write
 //  se   : single-ended
 //  sz   : size
 //  F    : feature
 //  w    : width
 //  h    : height or horizontal
 //  v    : vertical or velocity


 enum ram_cell_tech_type_num {
     itrs_hp   = 0,
     itrs_lstp = 1,
     itrs_lop  = 2,
     lp_dram   = 3,
     comm_dram = 4
 };

 const double pppm[4]      = {1, 1, 1, 1};
 const double pppm_lkg[4]  = {0, 1, 1, 0};
 const double pppm_dyn[4]  = {1, 0, 0, 0};
 const double pppm_Isub[4] = {0, 1, 0, 0};
 const double pppm_Ig[4]   = {0, 0, 1, 0};
 const double pppm_sc[4]   = {0, 0, 0, 1};


 #endif
	/*****************************************************************************
	* McPAT/CACTI
	* SOFTWARE LICENSE AGREEMENT
	* Copyright 2012 Hewlett-Packard Development Company, L.P.
	* 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.
	*
	***************************************************************************/

	#ifndef __CONST_H__
	#define __CONST_H__

	#include <math.h>
	#include <stdint.h>
	#include <stdio.h>
	#include <stdlib.h>
	#include <string.h>

	/* The following are things you might want to change
	* when compiling
	*/

	/*
	* Address bits in a word, and number of output bits from the cache
	*/

	/*
	was: #define ADDRESS_BITS 32
	now: I'm using 42 bits as in the Power4,
	since that's bigger then the 36 bits on the Pentium 4
	and 40 bits on the Opteron
	*/
	const int ADDRESS_BITS = 42;

	/*dt: In addition to the tag bits, the tags also include 1 valid bit, 1 dirty bit, 2 bits for a 4-state
	cache coherency protocoll (MESI), 1 bit for MRU (change this to log(ways) for full LRU).
	So in total we have 1 + 1 + 2 + 1 = 5 */
	const int EXTRA_TAG_BITS = 5;

	/* limits on the various N parameters */

	const unsigned int MAXDATAN = 512; // maximum for Ndwl and Ndbl
	const unsigned int MAXSUBARRAYS = 1048576; // maximum subarrays for data and tag arrays
	const unsigned int MAXDATASPD = 256; // maximum for Nspd
	const unsigned int MAX_COL_MUX = 256;



	#define ROUTER_TYPES 3
	#define WIRE_TYPES 6

	const double Cpolywire = 0;


	/* Threshold voltages (as a proportion of Vdd)
	If you don't know them, set all values to 0.5 */
	#define VTHFA1 0.452
	#define VTHFA2 0.304
	#define VTHFA3 0.420
	#define VTHFA4 0.413
	#define VTHFA5 0.405
	#define VTHFA6 0.452
	#define VSINV 0.452
	#define VTHCOMPINV 0.437
	#define VTHMUXNAND 0.548 // TODO : this constant must be revisited
	#define VTHEVALINV 0.452
	#define VTHSENSEEXTDRV 0.438


	//WmuxdrvNANDn and WmuxdrvNANDp are no longer being used but it's part of the old
	//delay_comparator function which we are using exactly as it used to be, so just setting these to 0
	const double WmuxdrvNANDn = 0;
	const double WmuxdrvNANDp = 0;


	/===================================================================/
	/*
	* The following are things you probably wouldn't want to change.
	*/

	#define BIGNUM 1e30
	#define INF 9999999
	#define MAX(a,b) (((a)>(b))?(a):(b))
	#define MIN(a,b) (((a)<(b))?(a):(b))

	/* Used to communicate with the horowitz model */
	#define RISE 1
	#define FALL 0
	#define NCH 1
	#define PCH 0


	#define EPSILON 0.5 //v4.1: This constant is being used in order to fix floating point -> integer
	//conversion problems that were occuring within CACTI. Typical problem that was occuring was
	//that with different compilers a floating point number like 3.0 would get represented as either
	//2.9999....or 3.00000001 and then the integer part of the floating point number (3.0) would
	//be computed differently depending on the compiler. What we are doing now is to replace
	//int (x) with (int) (x+EPSILON) where EPSILON is 0.5. This would fix such problems. Note that
	//this works only when x is an integer >= 0.
	/*
	* Sheng thinks this is more a solution to solve the simple truncate problem
	* (http://www.cs.tut.fi/~jkorpela/round.html) rather than the problem mentioned above.
	* Unfortunately, this solution causes nasty bugs (different results when using O0 and O3).
	* Moreover, round is not correct in CACTI since when an extra fraction of bit/line is needed,
	* we need to provide a complete bit/line even the fraction is just 0.01.
	* So, in later version than 6.5 we use (int)ceil() to get double to int conversion.
	*/

	#define EPSILON2 0.1
	#define EPSILON3 0.6


	#define MINSUBARRAYROWS 16 //For simplicity in modeling, for the row decoding structure, we assume
	//that each row predecode block is composed of at least one 2-4 decoder. When the outputs from the
	//row predecode blocks are combined this means that there are at least 4*4=16 row decode outputs
	#define MAXSUBARRAYROWS 262144 //Each row predecode block produces a max of 2^9 outputs. So
	//the maximum number of row decode outputs will be 2^9*2^9
	#define MINSUBARRAYCOLS 2
	#define MAXSUBARRAYCOLS 262144


	#define INV 0
	#define NOR 1
	#define NAND 2


	#define NUMBER_TECH_FLAVORS 4

	#define NUMBER_INTERCONNECT_PROJECTION_TYPES 2 //aggressive and conservative
	//0 = Aggressive projections, 1 = Conservative projections
	#define NUMBER_WIRE_TYPES 4 //local, semi-global and global
	//1 = 'Semi-global' wire type, 2 = 'Global' wire type


	const int dram_cell_tech_flavor = 3;


	#define VBITSENSEMIN 0.08 //minimum bitline sense voltage is fixed to be 80 mV.

	#define fopt 4.0

	#define INPUT_WIRE_TO_INPUT_GATE_CAP_RATIO 0
	#define BUFFER_SEPARATION_LENGTH_MULTIPLIER 1
	#define NUMBER_MATS_PER_REDUNDANT_MAT 8

	#define NUMBER_STACKED_DIE_LAYERS 1

	// this variable can be set to carry out solution optimization for
	// a maximum area allocation.
	#define STACKED_DIE_LAYER_ALLOTED_AREA_mm2 0 //6.24 //6.21//71.5

	// this variable can also be employed when solution optimization
	// with maximum area allocation is carried out.
	#define MAX_PERCENT_AWAY_FROM_ALLOTED_AREA 50

	// this variable can also be employed when solution optimization
	// with maximum area allocation is carried out.
	#define MIN_AREA_EFFICIENCY 20

	// this variable can be employed when solution with a desired
	// aspect ratio is required.
	#define STACKED_DIE_LAYER_ASPECT_RATIO 1

	// this variable can be employed when solution with a desired
	// aspect ratio is required.
	#define MAX_PERCENT_AWAY_FROM_ASPECT_RATIO 101

	// this variable can be employed to carry out solution optimization
	// for a certain target random cycle time.
	#define TARGET_CYCLE_TIME_ns 1000000000

	#define NUMBER_PIPELINE_STAGES 4

	// this can be used to model the length of interconnect
	// between a bank and a crossbar
	#define LENGTH_INTERCONNECT_FROM_BANK_TO_CROSSBAR 0 //3791 // 2880//micron

	#define IS_CROSSBAR 0
	#define NUMBER_INPUT_PORTS_CROSSBAR 8
	#define NUMBER_OUTPUT_PORTS_CROSSBAR 8
	#define NUMBER_SIGNALS_PER_PORT_CROSSBAR 256


	#define MAT_LEAKAGE_REDUCTION_DUE_TO_SLEEP_TRANSISTORS_FACTOR 1
	#define LEAKAGE_REDUCTION_DUE_TO_LONG_CHANNEL_HP_TRANSISTORS_FACTOR 1

	#define PAGE_MODE 0

	#define MAIN_MEM_PER_CHIP_STANDBY_CURRENT_mA 60
	// We are actually not using this variable in the CACTI code. We just want to acknowledge that
	// this current should be multiplied by the DDR(n) system VDD value to compute the standby power
	// consumed during precharge.


	const double VDD_STORAGE_LOSS_FRACTION_WORST = 0.125;
	const double CU_RESISTIVITY = 0.022; //ohm-micron
	const double BULK_CU_RESISTIVITY = 0.018; //ohm-micron
	const double PERMITTIVITY_FREE_SPACE = 8.854e-18; //F/micron

	const static uint32_t sram_num_cells_wl_stitching_ = 16;
	const static uint32_t dram_num_cells_wl_stitching_ = 64;
	const static uint32_t comm_dram_num_cells_wl_stitching_ = 256;
	const static double num_bits_per_ecc_b_ = 8.0;

	const double bit_to_byte = 8.0;

	#define MAX_NUMBER_GATES_STAGE 20
	#define MAX_NUMBER_HTREE_NODES 20
	#define NAND2_LEAK_STACK_FACTOR 0.2
	#define NAND3_LEAK_STACK_FACTOR 0.2
	#define NOR2_LEAK_STACK_FACTOR 0.2
	#define INV_LEAK_STACK_FACTOR 0.5
	#define MAX_NUMBER_ARRAY_PARTITIONS 1000000

	// abbreviations used in this project
	// ----------------------------------
	//
	// num : number
	// rw : read/write
	// rd : read
	// wr : write
	// se : single-ended
	// sz : size
	// F : feature
	// w : width
	// h : height or horizontal
	// v : vertical or velocity


	enum ram_cell_tech_type_num {
	itrs_hp = 0,
	itrs_lstp = 1,
	itrs_lop = 2,
	lp_dram = 3,
	comm_dram = 4
	};

	const double pppm[4] = {1, 1, 1, 1};
	const double pppm_lkg[4] = {0, 1, 1, 0};
	const double pppm_dyn[4] = {1, 0, 0, 0};
	const double pppm_Isub[4] = {0, 1, 0, 0};
	const double pppm_Ig[4] = {0, 0, 1, 0};
	const double pppm_sc[4] = {0, 0, 0, 1};



	#endif