diff options
author | Anthony Gutierrez <atgutier@umich.edu> | 2014-04-01 12:44:30 -0400 |
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committer | Anthony Gutierrez <atgutier@umich.edu> | 2014-04-01 12:44:30 -0400 |
commit | e553a7bfa7f0eb47b78632cd63e6e1e814025c9a (patch) | |
tree | f69a8e3e0ed55b95bf276b6f857793b9ef7b6490 /ext/mcpat/cacti/uca.cc | |
parent | 8d665ee166bf5476bb9b73a0016843ff9953c266 (diff) | |
download | gem5-e553a7bfa7f0eb47b78632cd63e6e1e814025c9a.tar.xz |
ext: add McPAT source
this patch adds the source for mcpat, a power, area, and timing modeling
framework.
Diffstat (limited to 'ext/mcpat/cacti/uca.cc')
-rwxr-xr-x | ext/mcpat/cacti/uca.cc | 426 |
1 files changed, 426 insertions, 0 deletions
diff --git a/ext/mcpat/cacti/uca.cc b/ext/mcpat/cacti/uca.cc new file mode 100755 index 000000000..568cd9e44 --- /dev/null +++ b/ext/mcpat/cacti/uca.cc @@ -0,0 +1,426 @@ +/***************************************************************************** + * McPAT/CACTI + * SOFTWARE LICENSE AGREEMENT + * Copyright 2012 Hewlett-Packard Development Company, L.P. + * 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.” + * + ***************************************************************************/ + + + +#include <cmath> +#include <iostream> + +#include "uca.h" + +UCA::UCA(const DynamicParameter & dyn_p) + :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; +// cout<<"area cell"<<area_all_dataramcells<<endl; +// cout<<area.get_area()<<endl; + // delay calculation + double inrisetime = 0.0; + compute_delays(inrisetime); + compute_power_energy(); +} + + + +UCA::~UCA() +{ + delete htree_in_add; + delete htree_in_data; + delete htree_out_data; +} + + + +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 + } + + 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; + } + + double dram_array_availability = 0; + if (dp.is_dram) + { + dram_array_availability = (1 - dp.num_r_subarray * cycle_time / dp.dram_refresh_period) * 100; + } + + return outrisetime; +} + + + +// note: currently, power numbers are for a bank of an array +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) + { + 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; + } + + 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) + { + 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; + } + + + if (dp.is_dram) + { // if DRAM, add contribution of power spent in row predecoder drivers, blocks and decoders to refresh power + 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; + } + + + 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); +} + |