sanchayanmaity/gem5
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
gem5/ext/mcpat/cacti/uca.cc

428 lines
21 KiB
C++
Raw Normal View History

ext: add McPAT source this patch adds the source for mcpat, a power, area, and timing modeling framework.
2014-04-01 18:44:30 +02:00
/*****************************************************************************
* McPAT/CACTI
* SOFTWARE LICENSE AGREEMENT
* Copyright 2012 Hewlett-Packard Development Company, L.P.
ext: McPAT interface changes and fixes This patch includes software engineering changes and some generic bug fixes Joel Hestness and Yasuko Eckert made to McPAT 0.8. There are still known issues/concernts we did not have a chance to address in this patch. High-level changes in this patch include: 1) Making XML parsing modular and hierarchical: - Shift parsing responsibility into the components - Read XML in a (mostly) context-free recursive manner so that McPAT input files can contain arbitrary component hierarchies 2) Making power, energy, and area calculations a hierarchical and recursive process - Components track their subcomponents and recursively call compute functions in stages - Make C++ object hierarchy reflect inheritance of classes of components with similar structures - Simplify computeArea() and computeEnergy() functions to eliminate successive calls to calculate separate TDP vs. runtime energy - Remove Processor component (now unnecessary) and introduce a more abstract System component 3) Standardizing McPAT output across all components - Use a single, common data structure for storing and printing McPAT output - Recursively call print functions through component hierarchy 4) For caches, allow splitting data array and tag array reads and writes for better accuracy 5) Improving the usability of CACTI by printing more helpful warning and error messages 6) Minor: Impose more rigorous code style for clarity (more work still to be done) Overall, these changes greatly reduce the amount of replicated code, and they improve McPAT runtime and decrease memory footprint.
2014-06-03 22:32:59 +02:00
* Copyright (c) 2010-2013 Advanced Micro Devices, Inc.
ext: add McPAT source this patch adds the source for mcpat, a power, area, and timing modeling framework.
2014-04-01 18:44:30 +02:00
* 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
ext: McPAT interface changes and fixes This patch includes software engineering changes and some generic bug fixes Joel Hestness and Yasuko Eckert made to McPAT 0.8. There are still known issues/concernts we did not have a chance to address in this patch. High-level changes in this patch include: 1) Making XML parsing modular and hierarchical: - Shift parsing responsibility into the components - Read XML in a (mostly) context-free recursive manner so that McPAT input files can contain arbitrary component hierarchies 2) Making power, energy, and area calculations a hierarchical and recursive process - Components track their subcomponents and recursively call compute functions in stages - Make C++ object hierarchy reflect inheritance of classes of components with similar structures - Simplify computeArea() and computeEnergy() functions to eliminate successive calls to calculate separate TDP vs. runtime energy - Remove Processor component (now unnecessary) and introduce a more abstract System component 3) Standardizing McPAT output across all components - Use a single, common data structure for storing and printing McPAT output - Recursively call print functions through component hierarchy 4) For caches, allow splitting data array and tag array reads and writes for better accuracy 5) Improving the usability of CACTI by printing more helpful warning and error messages 6) Minor: Impose more rigorous code style for clarity (more work still to be done) Overall, these changes greatly reduce the amount of replicated code, and they improve McPAT runtime and decrease memory footprint.
2014-06-03 22:32:59 +02:00
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
ext: add McPAT source this patch adds the source for mcpat, a power, area, and timing modeling framework.
2014-04-01 18:44:30 +02:00
*
***************************************************************************/
#include <cmath>
#include <iostream>
#include "uca.h"
UCA::UCA(const DynamicParameter & dyn_p)
ext: McPAT interface changes and fixes This patch includes software engineering changes and some generic bug fixes Joel Hestness and Yasuko Eckert made to McPAT 0.8. There are still known issues/concernts we did not have a chance to address in this patch. High-level changes in this patch include: 1) Making XML parsing modular and hierarchical: - Shift parsing responsibility into the components - Read XML in a (mostly) context-free recursive manner so that McPAT input files can contain arbitrary component hierarchies 2) Making power, energy, and area calculations a hierarchical and recursive process - Components track their subcomponents and recursively call compute functions in stages - Make C++ object hierarchy reflect inheritance of classes of components with similar structures - Simplify computeArea() and computeEnergy() functions to eliminate successive calls to calculate separate TDP vs. runtime energy - Remove Processor component (now unnecessary) and introduce a more abstract System component 3) Standardizing McPAT output across all components - Use a single, common data structure for storing and printing McPAT output - Recursively call print functions through component hierarchy 4) For caches, allow splitting data array and tag array reads and writes for better accuracy 5) Improving the usability of CACTI by printing more helpful warning and error messages 6) Minor: Impose more rigorous code style for clarity (more work still to be done) Overall, these changes greatly reduce the amount of replicated code, and they improve McPAT runtime and decrease memory footprint.
2014-06-03 22:32:59 +02:00
: dp(dyn_p), bank(dp), nbanks(g_ip->nbanks), refresh_power(0) {
int num_banks_ver_dir = 1 << ((bank.area.h > bank.area.w) ? _log2(nbanks)
/ 2 : (_log2(nbanks) - _log2(nbanks) / 2));
int num_banks_hor_dir = nbanks / num_banks_ver_dir;
if (dp.use_inp_params) {
RWP = dp.num_rw_ports;
ERP = dp.num_rd_ports;
EWP = dp.num_wr_ports;
SCHP = dp.num_search_ports;
} else {
RWP = g_ip->num_rw_ports;
ERP = g_ip->num_rd_ports;
EWP = g_ip->num_wr_ports;
SCHP = g_ip->num_search_ports;
}
num_addr_b_bank = (dp.number_addr_bits_mat + dp.number_subbanks_decode) *
(RWP + ERP + EWP);
num_di_b_bank = dp.num_di_b_bank_per_port * (RWP + EWP);
num_do_b_bank = dp.num_do_b_bank_per_port * (RWP + ERP);
num_si_b_bank = dp.num_si_b_bank_per_port * SCHP;
num_so_b_bank = dp.num_so_b_bank_per_port * SCHP;
if (!dp.fully_assoc && !dp.pure_cam) {
if (g_ip->fast_access && dp.is_tag == false) {
num_do_b_bank *= g_ip->data_assoc;
}
htree_in_add = new Htree2(g_ip->wt, bank.area.w, bank.area.h,
num_addr_b_bank, num_di_b_bank, 0,
num_do_b_bank, 0, num_banks_ver_dir * 2,
num_banks_hor_dir * 2, Add_htree, true);
htree_in_data = new Htree2(g_ip->wt, bank.area.w, bank.area.h,
num_addr_b_bank, num_di_b_bank, 0,
num_do_b_bank, 0, num_banks_ver_dir * 2,
num_banks_hor_dir * 2, Data_in_htree, true);
htree_out_data = new Htree2(g_ip->wt, bank.area.w, bank.area.h,
num_addr_b_bank, num_di_b_bank, 0,
num_do_b_bank, 0, num_banks_ver_dir * 2,
num_banks_hor_dir * 2, Data_out_htree, true);
}
else {
htree_in_add = new Htree2(g_ip->wt, bank.area.w, bank.area.h,
num_addr_b_bank, num_di_b_bank,
num_si_b_bank, num_do_b_bank, num_so_b_bank,
num_banks_ver_dir * 2, num_banks_hor_dir * 2,
Add_htree, true);
htree_in_data = new Htree2(g_ip->wt, bank.area.w, bank.area.h,
num_addr_b_bank, num_di_b_bank,
num_si_b_bank, num_do_b_bank, num_so_b_bank,
num_banks_ver_dir * 2, num_banks_hor_dir * 2,
Data_in_htree, true);
htree_out_data = new Htree2(g_ip->wt, bank.area.w, bank.area.h,
num_addr_b_bank, num_di_b_bank,
num_si_b_bank, num_do_b_bank,
num_so_b_bank, num_banks_ver_dir * 2,
num_banks_hor_dir * 2, Data_out_htree, true);
htree_in_search = new Htree2(g_ip->wt, bank.area.w, bank.area.h,
num_addr_b_bank, num_di_b_bank,
num_si_b_bank, num_do_b_bank,
num_so_b_bank, num_banks_ver_dir * 2,
num_banks_hor_dir * 2, Data_in_htree, true);
htree_out_search = new Htree2(g_ip->wt, bank.area.w, bank.area.h,
num_addr_b_bank, num_di_b_bank,
num_si_b_bank, num_do_b_bank,
num_so_b_bank, num_banks_ver_dir * 2,
num_banks_hor_dir * 2, Data_out_htree,
true);
}
area.w = htree_in_data->area.w;
area.h = htree_in_data->area.h;
area_all_dataramcells = bank.mat.subarray.get_total_cell_area() * dp.num_subarrays * g_ip->nbanks;
ext: add McPAT source this patch adds the source for mcpat, a power, area, and timing modeling framework.
2014-04-01 18:44:30 +02:00
// cout<<"area cell"<<area_all_dataramcells<<endl;
// cout<<area.get_area()<<endl;
ext: McPAT interface changes and fixes This patch includes software engineering changes and some generic bug fixes Joel Hestness and Yasuko Eckert made to McPAT 0.8. There are still known issues/concernts we did not have a chance to address in this patch. High-level changes in this patch include: 1) Making XML parsing modular and hierarchical: - Shift parsing responsibility into the components - Read XML in a (mostly) context-free recursive manner so that McPAT input files can contain arbitrary component hierarchies 2) Making power, energy, and area calculations a hierarchical and recursive process - Components track their subcomponents and recursively call compute functions in stages - Make C++ object hierarchy reflect inheritance of classes of components with similar structures - Simplify computeArea() and computeEnergy() functions to eliminate successive calls to calculate separate TDP vs. runtime energy - Remove Processor component (now unnecessary) and introduce a more abstract System component 3) Standardizing McPAT output across all components - Use a single, common data structure for storing and printing McPAT output - Recursively call print functions through component hierarchy 4) For caches, allow splitting data array and tag array reads and writes for better accuracy 5) Improving the usability of CACTI by printing more helpful warning and error messages 6) Minor: Impose more rigorous code style for clarity (more work still to be done) Overall, these changes greatly reduce the amount of replicated code, and they improve McPAT runtime and decrease memory footprint.
2014-06-03 22:32:59 +02:00
// delay calculation
double inrisetime = 0.0;
compute_delays(inrisetime);
compute_power_energy();
ext: add McPAT source this patch adds the source for mcpat, a power, area, and timing modeling framework.
2014-04-01 18:44:30 +02:00
}
ext: McPAT interface changes and fixes This patch includes software engineering changes and some generic bug fixes Joel Hestness and Yasuko Eckert made to McPAT 0.8. There are still known issues/concernts we did not have a chance to address in this patch. High-level changes in this patch include: 1) Making XML parsing modular and hierarchical: - Shift parsing responsibility into the components - Read XML in a (mostly) context-free recursive manner so that McPAT input files can contain arbitrary component hierarchies 2) Making power, energy, and area calculations a hierarchical and recursive process - Components track their subcomponents and recursively call compute functions in stages - Make C++ object hierarchy reflect inheritance of classes of components with similar structures - Simplify computeArea() and computeEnergy() functions to eliminate successive calls to calculate separate TDP vs. runtime energy - Remove Processor component (now unnecessary) and introduce a more abstract System component 3) Standardizing McPAT output across all components - Use a single, common data structure for storing and printing McPAT output - Recursively call print functions through component hierarchy 4) For caches, allow splitting data array and tag array reads and writes for better accuracy 5) Improving the usability of CACTI by printing more helpful warning and error messages 6) Minor: Impose more rigorous code style for clarity (more work still to be done) Overall, these changes greatly reduce the amount of replicated code, and they improve McPAT runtime and decrease memory footprint.
2014-06-03 22:32:59 +02:00
UCA::~UCA() {
delete htree_in_add;
delete htree_in_data;
delete htree_out_data;
ext: add McPAT source this patch adds the source for mcpat, a power, area, and timing modeling framework.
2014-04-01 18:44:30 +02:00
}
ext: McPAT interface changes and fixes This patch includes software engineering changes and some generic bug fixes Joel Hestness and Yasuko Eckert made to McPAT 0.8. There are still known issues/concernts we did not have a chance to address in this patch. High-level changes in this patch include: 1) Making XML parsing modular and hierarchical: - Shift parsing responsibility into the components - Read XML in a (mostly) context-free recursive manner so that McPAT input files can contain arbitrary component hierarchies 2) Making power, energy, and area calculations a hierarchical and recursive process - Components track their subcomponents and recursively call compute functions in stages - Make C++ object hierarchy reflect inheritance of classes of components with similar structures - Simplify computeArea() and computeEnergy() functions to eliminate successive calls to calculate separate TDP vs. runtime energy - Remove Processor component (now unnecessary) and introduce a more abstract System component 3) Standardizing McPAT output across all components - Use a single, common data structure for storing and printing McPAT output - Recursively call print functions through component hierarchy 4) For caches, allow splitting data array and tag array reads and writes for better accuracy 5) Improving the usability of CACTI by printing more helpful warning and error messages 6) Minor: Impose more rigorous code style for clarity (more work still to be done) Overall, these changes greatly reduce the amount of replicated code, and they improve McPAT runtime and decrease memory footprint.
2014-06-03 22:32:59 +02:00
double UCA::compute_delays(double inrisetime) {
double outrisetime = bank.compute_delays(inrisetime);
double delay_array_to_mat = htree_in_add->delay + bank.htree_in_add->delay;
double max_delay_before_row_decoder = delay_array_to_mat + bank.mat.r_predec->delay;
delay_array_to_sa_mux_lev_1_decoder = delay_array_to_mat +
bank.mat.sa_mux_lev_1_predec->delay +
bank.mat.sa_mux_lev_1_dec->delay;
delay_array_to_sa_mux_lev_2_decoder = delay_array_to_mat +
bank.mat.sa_mux_lev_2_predec->delay +
bank.mat.sa_mux_lev_2_dec->delay;
double delay_inside_mat = bank.mat.row_dec->delay + bank.mat.delay_bitline + bank.mat.delay_sa;
delay_before_subarray_output_driver =
MAX(MAX(max_delay_before_row_decoder + delay_inside_mat, // row_path
delay_array_to_mat + bank.mat.b_mux_predec->delay + bank.mat.bit_mux_dec->delay + bank.mat.delay_sa), // col_path
MAX(delay_array_to_sa_mux_lev_1_decoder, // sa_mux_lev_1_path
delay_array_to_sa_mux_lev_2_decoder)); // sa_mux_lev_2_path
delay_from_subarray_out_drv_to_out = bank.mat.delay_subarray_out_drv_htree +
bank.htree_out_data->delay + htree_out_data->delay;
access_time = bank.mat.delay_comparator;
double ram_delay_inside_mat;
if (dp.fully_assoc) {
//delay of FA contains both CAM tag and RAM data
{ //delay of CAM
ram_delay_inside_mat = bank.mat.delay_bitline + bank.mat.delay_matchchline;
access_time = htree_in_add->delay + bank.htree_in_add->delay;
//delay of fully-associative data array
access_time += ram_delay_inside_mat + delay_from_subarray_out_drv_to_out;
}
} else {
access_time = delay_before_subarray_output_driver + delay_from_subarray_out_drv_to_out; //data_acc_path
ext: add McPAT source this patch adds the source for mcpat, a power, area, and timing modeling framework.
2014-04-01 18:44:30 +02:00
}
ext: McPAT interface changes and fixes This patch includes software engineering changes and some generic bug fixes Joel Hestness and Yasuko Eckert made to McPAT 0.8. There are still known issues/concernts we did not have a chance to address in this patch. High-level changes in this patch include: 1) Making XML parsing modular and hierarchical: - Shift parsing responsibility into the components - Read XML in a (mostly) context-free recursive manner so that McPAT input files can contain arbitrary component hierarchies 2) Making power, energy, and area calculations a hierarchical and recursive process - Components track their subcomponents and recursively call compute functions in stages - Make C++ object hierarchy reflect inheritance of classes of components with similar structures - Simplify computeArea() and computeEnergy() functions to eliminate successive calls to calculate separate TDP vs. runtime energy - Remove Processor component (now unnecessary) and introduce a more abstract System component 3) Standardizing McPAT output across all components - Use a single, common data structure for storing and printing McPAT output - Recursively call print functions through component hierarchy 4) For caches, allow splitting data array and tag array reads and writes for better accuracy 5) Improving the usability of CACTI by printing more helpful warning and error messages 6) Minor: Impose more rigorous code style for clarity (more work still to be done) Overall, these changes greatly reduce the amount of replicated code, and they improve McPAT runtime and decrease memory footprint.
2014-06-03 22:32:59 +02:00
if (dp.is_main_mem) {
double t_rcd = max_delay_before_row_decoder + delay_inside_mat;
double cas_latency = MAX(delay_array_to_sa_mux_lev_1_decoder, delay_array_to_sa_mux_lev_2_decoder) +
delay_from_subarray_out_drv_to_out;
access_time = t_rcd + cas_latency;
}
double temp;
if (!dp.fully_assoc) {
temp = delay_inside_mat + bank.mat.delay_wl_reset + bank.mat.delay_bl_restore;//TODO: Sheng: revisit
if (dp.is_dram) {
temp += bank.mat.delay_writeback; // temp stores random cycle time
}
temp = MAX(temp, bank.mat.r_predec->delay);
temp = MAX(temp, bank.mat.b_mux_predec->delay);
temp = MAX(temp, bank.mat.sa_mux_lev_1_predec->delay);
temp = MAX(temp, bank.mat.sa_mux_lev_2_predec->delay);
} else {
ram_delay_inside_mat = bank.mat.delay_bitline + bank.mat.delay_matchchline;
temp = ram_delay_inside_mat + bank.mat.delay_cam_sl_restore + bank.mat.delay_cam_ml_reset + bank.mat.delay_bl_restore
+ bank.mat.delay_hit_miss_reset + bank.mat.delay_wl_reset;
temp = MAX(temp, bank.mat.b_mux_predec->delay);//TODO: Sheng revisit whether distinguish cam and ram bitline etc.
temp = MAX(temp, bank.mat.sa_mux_lev_1_predec->delay);
temp = MAX(temp, bank.mat.sa_mux_lev_2_predec->delay);
}
// The following is true only if the input parameter "repeaters_in_htree" is set to false --Nav
if (g_ip->rpters_in_htree == false) {
temp = MAX(temp, bank.htree_in_add->max_unpipelined_link_delay);
}
cycle_time = temp;
double delay_req_network = max_delay_before_row_decoder;
double delay_rep_network = delay_from_subarray_out_drv_to_out;
multisubbank_interleave_cycle_time = MAX(delay_req_network, delay_rep_network);
if (dp.is_main_mem) {
multisubbank_interleave_cycle_time = htree_in_add->delay;
precharge_delay = htree_in_add->delay +
bank.htree_in_add->delay + bank.mat.delay_writeback +
bank.mat.delay_wl_reset + bank.mat.delay_bl_restore;
cycle_time = access_time + precharge_delay;
} else {
precharge_delay = 0;
ext: add McPAT source this patch adds the source for mcpat, a power, area, and timing modeling framework.
2014-04-01 18:44:30 +02:00
}
ext: McPAT interface changes and fixes This patch includes software engineering changes and some generic bug fixes Joel Hestness and Yasuko Eckert made to McPAT 0.8. There are still known issues/concernts we did not have a chance to address in this patch. High-level changes in this patch include: 1) Making XML parsing modular and hierarchical: - Shift parsing responsibility into the components - Read XML in a (mostly) context-free recursive manner so that McPAT input files can contain arbitrary component hierarchies 2) Making power, energy, and area calculations a hierarchical and recursive process - Components track their subcomponents and recursively call compute functions in stages - Make C++ object hierarchy reflect inheritance of classes of components with similar structures - Simplify computeArea() and computeEnergy() functions to eliminate successive calls to calculate separate TDP vs. runtime energy - Remove Processor component (now unnecessary) and introduce a more abstract System component 3) Standardizing McPAT output across all components - Use a single, common data structure for storing and printing McPAT output - Recursively call print functions through component hierarchy 4) For caches, allow splitting data array and tag array reads and writes for better accuracy 5) Improving the usability of CACTI by printing more helpful warning and error messages 6) Minor: Impose more rigorous code style for clarity (more work still to be done) Overall, these changes greatly reduce the amount of replicated code, and they improve McPAT runtime and decrease memory footprint.
2014-06-03 22:32:59 +02:00
double dram_array_availability = 0;
if (dp.is_dram) {
dram_array_availability = (1 - dp.num_r_subarray * cycle_time / dp.dram_refresh_period) * 100;
}
ext: add McPAT source this patch adds the source for mcpat, a power, area, and timing modeling framework.
2014-04-01 18:44:30 +02:00
ext: McPAT interface changes and fixes This patch includes software engineering changes and some generic bug fixes Joel Hestness and Yasuko Eckert made to McPAT 0.8. There are still known issues/concernts we did not have a chance to address in this patch. High-level changes in this patch include: 1) Making XML parsing modular and hierarchical: - Shift parsing responsibility into the components - Read XML in a (mostly) context-free recursive manner so that McPAT input files can contain arbitrary component hierarchies 2) Making power, energy, and area calculations a hierarchical and recursive process - Components track their subcomponents and recursively call compute functions in stages - Make C++ object hierarchy reflect inheritance of classes of components with similar structures - Simplify computeArea() and computeEnergy() functions to eliminate successive calls to calculate separate TDP vs. runtime energy - Remove Processor component (now unnecessary) and introduce a more abstract System component 3) Standardizing McPAT output across all components - Use a single, common data structure for storing and printing McPAT output - Recursively call print functions through component hierarchy 4) For caches, allow splitting data array and tag array reads and writes for better accuracy 5) Improving the usability of CACTI by printing more helpful warning and error messages 6) Minor: Impose more rigorous code style for clarity (more work still to be done) Overall, these changes greatly reduce the amount of replicated code, and they improve McPAT runtime and decrease memory footprint.
2014-06-03 22:32:59 +02:00
return outrisetime;
ext: add McPAT source this patch adds the source for mcpat, a power, area, and timing modeling framework.
2014-04-01 18:44:30 +02:00
}
// note: currently, power numbers are for a bank of an array
ext: McPAT interface changes and fixes This patch includes software engineering changes and some generic bug fixes Joel Hestness and Yasuko Eckert made to McPAT 0.8. There are still known issues/concernts we did not have a chance to address in this patch. High-level changes in this patch include: 1) Making XML parsing modular and hierarchical: - Shift parsing responsibility into the components - Read XML in a (mostly) context-free recursive manner so that McPAT input files can contain arbitrary component hierarchies 2) Making power, energy, and area calculations a hierarchical and recursive process - Components track their subcomponents and recursively call compute functions in stages - Make C++ object hierarchy reflect inheritance of classes of components with similar structures - Simplify computeArea() and computeEnergy() functions to eliminate successive calls to calculate separate TDP vs. runtime energy - Remove Processor component (now unnecessary) and introduce a more abstract System component 3) Standardizing McPAT output across all components - Use a single, common data structure for storing and printing McPAT output - Recursively call print functions through component hierarchy 4) For caches, allow splitting data array and tag array reads and writes for better accuracy 5) Improving the usability of CACTI by printing more helpful warning and error messages 6) Minor: Impose more rigorous code style for clarity (more work still to be done) Overall, these changes greatly reduce the amount of replicated code, and they improve McPAT runtime and decrease memory footprint.
2014-06-03 22:32:59 +02:00
void UCA::compute_power_energy() {
bank.compute_power_energy();
power = bank.power;
power_routing_to_bank.readOp.dynamic = htree_in_add->power.readOp.dynamic + htree_out_data->power.readOp.dynamic;
power_routing_to_bank.writeOp.dynamic = htree_in_add->power.readOp.dynamic + htree_in_data->power.readOp.dynamic;
if (dp.fully_assoc || dp.pure_cam)
power_routing_to_bank.searchOp.dynamic =
htree_in_search->power.searchOp.dynamic +
htree_out_search->power.searchOp.dynamic;
power_routing_to_bank.readOp.leakage +=
htree_in_add->power.readOp.leakage +
htree_in_data->power.readOp.leakage +
htree_out_data->power.readOp.leakage;
power_routing_to_bank.readOp.gate_leakage +=
htree_in_add->power.readOp.gate_leakage +
htree_in_data->power.readOp.gate_leakage +
htree_out_data->power.readOp.gate_leakage;
if (dp.fully_assoc || dp.pure_cam) {
ext: add McPAT source this patch adds the source for mcpat, a power, area, and timing modeling framework.
2014-04-01 18:44:30 +02:00
power_routing_to_bank.readOp.leakage += htree_in_search->power.readOp.leakage + htree_out_search->power.readOp.leakage;
power_routing_to_bank.readOp.gate_leakage += htree_in_search->power.readOp.gate_leakage + htree_out_search->power.readOp.gate_leakage;
ext: McPAT interface changes and fixes This patch includes software engineering changes and some generic bug fixes Joel Hestness and Yasuko Eckert made to McPAT 0.8. There are still known issues/concernts we did not have a chance to address in this patch. High-level changes in this patch include: 1) Making XML parsing modular and hierarchical: - Shift parsing responsibility into the components - Read XML in a (mostly) context-free recursive manner so that McPAT input files can contain arbitrary component hierarchies 2) Making power, energy, and area calculations a hierarchical and recursive process - Components track their subcomponents and recursively call compute functions in stages - Make C++ object hierarchy reflect inheritance of classes of components with similar structures - Simplify computeArea() and computeEnergy() functions to eliminate successive calls to calculate separate TDP vs. runtime energy - Remove Processor component (now unnecessary) and introduce a more abstract System component 3) Standardizing McPAT output across all components - Use a single, common data structure for storing and printing McPAT output - Recursively call print functions through component hierarchy 4) For caches, allow splitting data array and tag array reads and writes for better accuracy 5) Improving the usability of CACTI by printing more helpful warning and error messages 6) Minor: Impose more rigorous code style for clarity (more work still to be done) Overall, these changes greatly reduce the amount of replicated code, and they improve McPAT runtime and decrease memory footprint.
2014-06-03 22:32:59 +02:00
}
power.searchOp.dynamic += power_routing_to_bank.searchOp.dynamic;
power.readOp.dynamic += power_routing_to_bank.readOp.dynamic;
power.readOp.leakage += power_routing_to_bank.readOp.leakage;
power.readOp.gate_leakage += power_routing_to_bank.readOp.gate_leakage;
// calculate total write energy per access
power.writeOp.dynamic = power.readOp.dynamic
- bank.mat.power_bitline.readOp.dynamic * dp.num_act_mats_hor_dir
+ bank.mat.power_bitline.writeOp.dynamic * dp.num_act_mats_hor_dir
- power_routing_to_bank.readOp.dynamic
+ power_routing_to_bank.writeOp.dynamic
+ bank.htree_in_data->power.readOp.dynamic
- bank.htree_out_data->power.readOp.dynamic;
if (dp.is_dram == false) {
power.writeOp.dynamic -= bank.mat.power_sa.readOp.dynamic * dp.num_act_mats_hor_dir;
}
dyn_read_energy_from_closed_page = power.readOp.dynamic;
dyn_read_energy_from_open_page = power.readOp.dynamic -
(bank.mat.r_predec->power.readOp.dynamic +
bank.mat.power_row_decoders.readOp.dynamic +
bank.mat.power_bl_precharge_eq_drv.readOp.dynamic +
bank.mat.power_sa.readOp.dynamic +
bank.mat.power_bitline.readOp.dynamic) * dp.num_act_mats_hor_dir;
dyn_read_energy_remaining_words_in_burst =
(MAX((g_ip->burst_len / g_ip->int_prefetch_w), 1) - 1) *
((bank.mat.sa_mux_lev_1_predec->power.readOp.dynamic +
bank.mat.sa_mux_lev_2_predec->power.readOp.dynamic +
bank.mat.power_sa_mux_lev_1_decoders.readOp.dynamic +
bank.mat.power_sa_mux_lev_2_decoders.readOp.dynamic +
bank.mat.power_subarray_out_drv.readOp.dynamic) * dp.num_act_mats_hor_dir +
bank.htree_out_data->power.readOp.dynamic +
power_routing_to_bank.readOp.dynamic);
dyn_read_energy_from_closed_page += dyn_read_energy_remaining_words_in_burst;
dyn_read_energy_from_open_page += dyn_read_energy_remaining_words_in_burst;
activate_energy = htree_in_add->power.readOp.dynamic +
bank.htree_in_add->power_bit.readOp.dynamic * bank.num_addr_b_routed_to_mat_for_act +
(bank.mat.r_predec->power.readOp.dynamic +
bank.mat.power_row_decoders.readOp.dynamic +
bank.mat.power_sa.readOp.dynamic) * dp.num_act_mats_hor_dir;
read_energy = (htree_in_add->power.readOp.dynamic +
bank.htree_in_add->power_bit.readOp.dynamic * bank.num_addr_b_routed_to_mat_for_rd_or_wr +
(bank.mat.sa_mux_lev_1_predec->power.readOp.dynamic +
bank.mat.sa_mux_lev_2_predec->power.readOp.dynamic +
bank.mat.power_sa_mux_lev_1_decoders.readOp.dynamic +
bank.mat.power_sa_mux_lev_2_decoders.readOp.dynamic +
bank.mat.power_subarray_out_drv.readOp.dynamic) * dp.num_act_mats_hor_dir +
bank.htree_out_data->power.readOp.dynamic +
htree_in_data->power.readOp.dynamic) * g_ip->burst_len;
write_energy = (htree_in_add->power.readOp.dynamic +
bank.htree_in_add->power_bit.readOp.dynamic * bank.num_addr_b_routed_to_mat_for_rd_or_wr +
htree_in_data->power.readOp.dynamic +
bank.htree_in_data->power.readOp.dynamic +
(bank.mat.sa_mux_lev_1_predec->power.readOp.dynamic +
bank.mat.sa_mux_lev_2_predec->power.readOp.dynamic +
bank.mat.power_sa_mux_lev_1_decoders.readOp.dynamic +
bank.mat.power_sa_mux_lev_2_decoders.readOp.dynamic) * dp.num_act_mats_hor_dir) * g_ip->burst_len;
precharge_energy = (bank.mat.power_bitline.readOp.dynamic +
bank.mat.power_bl_precharge_eq_drv.readOp.dynamic) * dp.num_act_mats_hor_dir;
leak_power_subbank_closed_page =
(bank.mat.r_predec->power.readOp.leakage +
bank.mat.b_mux_predec->power.readOp.leakage +
bank.mat.sa_mux_lev_1_predec->power.readOp.leakage +
bank.mat.sa_mux_lev_2_predec->power.readOp.leakage +
bank.mat.power_row_decoders.readOp.leakage +
bank.mat.power_bit_mux_decoders.readOp.leakage +
bank.mat.power_sa_mux_lev_1_decoders.readOp.leakage +
bank.mat.power_sa_mux_lev_2_decoders.readOp.leakage +
bank.mat.leak_power_sense_amps_closed_page_state) * dp.num_act_mats_hor_dir;
leak_power_subbank_closed_page +=
(bank.mat.r_predec->power.readOp.gate_leakage +
bank.mat.b_mux_predec->power.readOp.gate_leakage +
bank.mat.sa_mux_lev_1_predec->power.readOp.gate_leakage +
bank.mat.sa_mux_lev_2_predec->power.readOp.gate_leakage +
bank.mat.power_row_decoders.readOp.gate_leakage +
bank.mat.power_bit_mux_decoders.readOp.gate_leakage +
bank.mat.power_sa_mux_lev_1_decoders.readOp.gate_leakage +
bank.mat.power_sa_mux_lev_2_decoders.readOp.gate_leakage) * dp.num_act_mats_hor_dir; //+
//bank.mat.leak_power_sense_amps_closed_page_state) * dp.num_act_mats_hor_dir;
leak_power_subbank_open_page =
(bank.mat.r_predec->power.readOp.leakage +
bank.mat.b_mux_predec->power.readOp.leakage +
bank.mat.sa_mux_lev_1_predec->power.readOp.leakage +
bank.mat.sa_mux_lev_2_predec->power.readOp.leakage +
bank.mat.power_row_decoders.readOp.leakage +
bank.mat.power_bit_mux_decoders.readOp.leakage +
bank.mat.power_sa_mux_lev_1_decoders.readOp.leakage +
bank.mat.power_sa_mux_lev_2_decoders.readOp.leakage +
bank.mat.leak_power_sense_amps_open_page_state) * dp.num_act_mats_hor_dir;
leak_power_subbank_open_page +=
(bank.mat.r_predec->power.readOp.gate_leakage +
bank.mat.b_mux_predec->power.readOp.gate_leakage +
bank.mat.sa_mux_lev_1_predec->power.readOp.gate_leakage +
bank.mat.sa_mux_lev_2_predec->power.readOp.gate_leakage +
bank.mat.power_row_decoders.readOp.gate_leakage +
bank.mat.power_bit_mux_decoders.readOp.gate_leakage +
bank.mat.power_sa_mux_lev_1_decoders.readOp.gate_leakage +
bank.mat.power_sa_mux_lev_2_decoders.readOp.gate_leakage ) * dp.num_act_mats_hor_dir;
//bank.mat.leak_power_sense_amps_open_page_state) * dp.num_act_mats_hor_dir;
leak_power_request_and_reply_networks =
power_routing_to_bank.readOp.leakage +
bank.htree_in_add->power.readOp.leakage +
bank.htree_in_data->power.readOp.leakage +
bank.htree_out_data->power.readOp.leakage;
leak_power_request_and_reply_networks +=
power_routing_to_bank.readOp.gate_leakage +
bank.htree_in_add->power.readOp.gate_leakage +
bank.htree_in_data->power.readOp.gate_leakage +
bank.htree_out_data->power.readOp.gate_leakage;
if (dp.fully_assoc || dp.pure_cam) {
ext: add McPAT source this patch adds the source for mcpat, a power, area, and timing modeling framework.
2014-04-01 18:44:30 +02:00
leak_power_request_and_reply_networks += htree_in_search->power.readOp.leakage + htree_out_search->power.readOp.leakage;
leak_power_request_and_reply_networks += htree_in_search->power.readOp.gate_leakage + htree_out_search->power.readOp.gate_leakage;
ext: McPAT interface changes and fixes This patch includes software engineering changes and some generic bug fixes Joel Hestness and Yasuko Eckert made to McPAT 0.8. There are still known issues/concernts we did not have a chance to address in this patch. High-level changes in this patch include: 1) Making XML parsing modular and hierarchical: - Shift parsing responsibility into the components - Read XML in a (mostly) context-free recursive manner so that McPAT input files can contain arbitrary component hierarchies 2) Making power, energy, and area calculations a hierarchical and recursive process - Components track their subcomponents and recursively call compute functions in stages - Make C++ object hierarchy reflect inheritance of classes of components with similar structures - Simplify computeArea() and computeEnergy() functions to eliminate successive calls to calculate separate TDP vs. runtime energy - Remove Processor component (now unnecessary) and introduce a more abstract System component 3) Standardizing McPAT output across all components - Use a single, common data structure for storing and printing McPAT output - Recursively call print functions through component hierarchy 4) For caches, allow splitting data array and tag array reads and writes for better accuracy 5) Improving the usability of CACTI by printing more helpful warning and error messages 6) Minor: Impose more rigorous code style for clarity (more work still to be done) Overall, these changes greatly reduce the amount of replicated code, and they improve McPAT runtime and decrease memory footprint.
2014-06-03 22:32:59 +02:00
}
ext: add McPAT source this patch adds the source for mcpat, a power, area, and timing modeling framework.
2014-04-01 18:44:30 +02:00
ext: McPAT interface changes and fixes This patch includes software engineering changes and some generic bug fixes Joel Hestness and Yasuko Eckert made to McPAT 0.8. There are still known issues/concernts we did not have a chance to address in this patch. High-level changes in this patch include: 1) Making XML parsing modular and hierarchical: - Shift parsing responsibility into the components - Read XML in a (mostly) context-free recursive manner so that McPAT input files can contain arbitrary component hierarchies 2) Making power, energy, and area calculations a hierarchical and recursive process - Components track their subcomponents and recursively call compute functions in stages - Make C++ object hierarchy reflect inheritance of classes of components with similar structures - Simplify computeArea() and computeEnergy() functions to eliminate successive calls to calculate separate TDP vs. runtime energy - Remove Processor component (now unnecessary) and introduce a more abstract System component 3) Standardizing McPAT output across all components - Use a single, common data structure for storing and printing McPAT output - Recursively call print functions through component hierarchy 4) For caches, allow splitting data array and tag array reads and writes for better accuracy 5) Improving the usability of CACTI by printing more helpful warning and error messages 6) Minor: Impose more rigorous code style for clarity (more work still to be done) Overall, these changes greatly reduce the amount of replicated code, and they improve McPAT runtime and decrease memory footprint.
2014-06-03 22:32:59 +02:00
// if DRAM, add contribution of power spent in row predecoder drivers,
// blocks and decoders to refresh power
if (dp.is_dram) {
refresh_power = (bank.mat.r_predec->power.readOp.dynamic * dp.num_act_mats_hor_dir +
bank.mat.row_dec->power.readOp.dynamic) * dp.num_r_subarray * dp.num_subarrays;
refresh_power += bank.mat.per_bitline_read_energy * dp.num_c_subarray * dp.num_r_subarray * dp.num_subarrays;
refresh_power += bank.mat.power_bl_precharge_eq_drv.readOp.dynamic * dp.num_act_mats_hor_dir;
refresh_power += bank.mat.power_sa.readOp.dynamic * dp.num_act_mats_hor_dir;
refresh_power /= dp.dram_refresh_period;
ext: add McPAT source this patch adds the source for mcpat, a power, area, and timing modeling framework.
2014-04-01 18:44:30 +02:00
}
ext: McPAT interface changes and fixes This patch includes software engineering changes and some generic bug fixes Joel Hestness and Yasuko Eckert made to McPAT 0.8. There are still known issues/concernts we did not have a chance to address in this patch. High-level changes in this patch include: 1) Making XML parsing modular and hierarchical: - Shift parsing responsibility into the components - Read XML in a (mostly) context-free recursive manner so that McPAT input files can contain arbitrary component hierarchies 2) Making power, energy, and area calculations a hierarchical and recursive process - Components track their subcomponents and recursively call compute functions in stages - Make C++ object hierarchy reflect inheritance of classes of components with similar structures - Simplify computeArea() and computeEnergy() functions to eliminate successive calls to calculate separate TDP vs. runtime energy - Remove Processor component (now unnecessary) and introduce a more abstract System component 3) Standardizing McPAT output across all components - Use a single, common data structure for storing and printing McPAT output - Recursively call print functions through component hierarchy 4) For caches, allow splitting data array and tag array reads and writes for better accuracy 5) Improving the usability of CACTI by printing more helpful warning and error messages 6) Minor: Impose more rigorous code style for clarity (more work still to be done) Overall, these changes greatly reduce the amount of replicated code, and they improve McPAT runtime and decrease memory footprint.
2014-06-03 22:32:59 +02:00
if (dp.is_tag == false) {
power.readOp.dynamic = dyn_read_energy_from_closed_page;
power.writeOp.dynamic = dyn_read_energy_from_closed_page
- dyn_read_energy_remaining_words_in_burst
- bank.mat.power_bitline.readOp.dynamic * dp.num_act_mats_hor_dir
+ bank.mat.power_bitline.writeOp.dynamic * dp.num_act_mats_hor_dir
+ (power_routing_to_bank.writeOp.dynamic -
power_routing_to_bank.readOp.dynamic -
bank.htree_out_data->power.readOp.dynamic +
bank.htree_in_data->power.readOp.dynamic) *
(MAX((g_ip->burst_len / g_ip->int_prefetch_w), 1) - 1); //FIXME
if (dp.is_dram == false) {
power.writeOp.dynamic -= bank.mat.power_sa.readOp.dynamic * dp.num_act_mats_hor_dir;
}
}
// if DRAM, add refresh power to total leakage
if (dp.is_dram) {
power.readOp.leakage += refresh_power;
}
// TODO: below should be avoided.
/*if (dp.is_main_mem)
{
power.readOp.leakage += MAIN_MEM_PER_CHIP_STANDBY_CURRENT_mA * 1e-3 * g_tp.peri_global.Vdd / g_ip->nbanks;
}*/
assert(power.readOp.dynamic > 0);
assert(power.writeOp.dynamic > 0);
assert(power.readOp.leakage > 0);
ext: add McPAT source this patch adds the source for mcpat, a power, area, and timing modeling framework.
2014-04-01 18:44:30 +02:00
}
Reference in a new issue Copy permalink