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Diffstat (limited to 'ext/mcpat/cacti/htree2.cc')
| -rw-r--r-- | ext/mcpat/cacti/htree2.cc | 641 |
1 files changed, 641 insertions, 0 deletions
diff --git a/ext/mcpat/cacti/htree2.cc b/ext/mcpat/cacti/htree2.cc new file mode 100644 index 000000000..817ea6a7c --- /dev/null +++ b/ext/mcpat/cacti/htree2.cc @@ -0,0 +1,641 @@ +/***************************************************************************** + * 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 <cassert> +#include <iostream> + +#include "htree2.h" +#include "wire.h" + +Htree2::Htree2( + enum Wire_type wire_model, double mat_w, double mat_h, + int a_bits, int d_inbits, int search_data_in, int d_outbits, int search_data_out, int bl, int wl, enum Htree_type htree_type, + bool uca_tree_, bool search_tree_, TechnologyParameter::DeviceType *dt) + :in_rise_time(0), out_rise_time(0), + tree_type(htree_type), mat_width(mat_w), mat_height(mat_h), + add_bits(a_bits), data_in_bits(d_inbits), search_data_in_bits(search_data_in),data_out_bits(d_outbits), + search_data_out_bits(search_data_out), ndbl(bl), ndwl(wl), + uca_tree(uca_tree_), search_tree(search_tree_), wt(wire_model), deviceType(dt) +{ + assert(ndbl >= 2 && ndwl >= 2); + +// if (ndbl == 1 && ndwl == 1) +// { +// delay = 0; +// power.readOp.dynamic = 0; +// power.readOp.leakage = 0; +// area.w = mat_w; +// area.h = mat_h; +// return; +// } +// if (ndwl == 1) ndwl++; +// if (ndbl == 1) ndbl++; + + max_unpipelined_link_delay = 0; //TODO + min_w_nmos = g_tp.min_w_nmos_; + min_w_pmos = deviceType->n_to_p_eff_curr_drv_ratio * min_w_nmos; + + switch (htree_type) + { + case Add_htree: + wire_bw = init_wire_bw = add_bits; + in_htree(); + break; + case Data_in_htree: + wire_bw = init_wire_bw = data_in_bits; + in_htree(); + break; + case Data_out_htree: + wire_bw = init_wire_bw = data_out_bits; + out_htree(); + break; + case Search_in_htree: + wire_bw = init_wire_bw = search_data_in_bits;//in_search_tree is broad cast, out_htree is not. + in_htree(); + break; + case Search_out_htree: + wire_bw = init_wire_bw = search_data_out_bits; + out_htree(); + break; + default: + assert(0); + break; + } + + power_bit = power; + power.readOp.dynamic *= init_wire_bw; + + assert(power.readOp.dynamic >= 0); + assert(power.readOp.leakage >= 0); +} + + + +// nand gate sizing calculation +void Htree2::input_nand(double s1, double s2, double l_eff) +{ + Wire w1(wt, l_eff); + double pton_size = deviceType->n_to_p_eff_curr_drv_ratio; + // input capacitance of a repeater = input capacitance of nand. + double nsize = s1*(1 + pton_size)/(2 + pton_size); + nsize = (nsize < 1) ? 1 : nsize; + + double tc = 2*tr_R_on(nsize*min_w_nmos, NCH, 1) * + (drain_C_(nsize*min_w_nmos, NCH, 1, 1, g_tp.cell_h_def)*2 + + 2 * gate_C(s2*(min_w_nmos + min_w_pmos), 0)); + delay+= horowitz (w1.out_rise_time, tc, + deviceType->Vth/deviceType->Vdd, deviceType->Vth/deviceType->Vdd, RISE); + power.readOp.dynamic += 0.5 * + (2*drain_C_(pton_size * nsize*min_w_pmos, PCH, 1, 1, g_tp.cell_h_def) + + drain_C_(nsize*min_w_nmos, NCH, 1, 1, g_tp.cell_h_def) + + 2*gate_C(s2*(min_w_nmos + min_w_pmos), 0)) * + deviceType->Vdd * deviceType->Vdd; + + power.searchOp.dynamic += 0.5 * + (2*drain_C_(pton_size * nsize*min_w_pmos, PCH, 1, 1, g_tp.cell_h_def) + + drain_C_(nsize*min_w_nmos, NCH, 1, 1, g_tp.cell_h_def) + + 2*gate_C(s2*(min_w_nmos + min_w_pmos), 0)) * + deviceType->Vdd * deviceType->Vdd * wire_bw ; + power.readOp.leakage += (wire_bw*cmos_Isub_leakage(min_w_nmos*(nsize*2), min_w_pmos * nsize * 2, 2, nand))*deviceType->Vdd; + power.readOp.gate_leakage += (wire_bw*cmos_Ig_leakage(min_w_nmos*(nsize*2), min_w_pmos * nsize * 2, 2, nand))*deviceType->Vdd; +} + + + +// tristate buffer model consisting of not, nand, nor, and driver transistors +void Htree2::output_buffer(double s1, double s2, double l_eff) +{ + Wire w1(wt, l_eff); + double pton_size = deviceType->n_to_p_eff_curr_drv_ratio; + // input capacitance of repeater = input capacitance of nand + nor. + double size = s1*(1 + pton_size)/(2 + pton_size + 1 + 2*pton_size); + double s_eff = //stage eff of a repeater in a wire + (gate_C(s2*(min_w_nmos + min_w_pmos), 0) + w1.wire_cap(l_eff*1e-6,true))/ + gate_C(s2*(min_w_nmos + min_w_pmos), 0); + double tr_size = gate_C(s1*(min_w_nmos + min_w_pmos), 0) * 1/2/(s_eff*gate_C(min_w_pmos, 0)); + size = (size < 1) ? 1 : size; + + double res_nor = 2*tr_R_on(size*min_w_pmos, PCH, 1); + double res_ptrans = tr_R_on(tr_size*min_w_nmos, NCH, 1); + double cap_nand_out = drain_C_(size*min_w_nmos, NCH, 1, 1, g_tp.cell_h_def) + + drain_C_(size*min_w_pmos, PCH, 1, 1, g_tp.cell_h_def)*2 + + gate_C(tr_size*min_w_pmos, 0); + double cap_ptrans_out = 2 *(drain_C_(tr_size*min_w_pmos, PCH, 1, 1, g_tp.cell_h_def) + + drain_C_(tr_size*min_w_nmos, NCH, 1, 1, g_tp.cell_h_def)) + + gate_C(s1*(min_w_nmos + min_w_pmos), 0); + + double tc = res_nor * cap_nand_out + (res_nor + res_ptrans) * cap_ptrans_out; + + + delay += horowitz (w1.out_rise_time, tc, + deviceType->Vth/deviceType->Vdd, deviceType->Vth/deviceType->Vdd, RISE); + + //nand + power.readOp.dynamic += 0.5 * + (2*drain_C_(size*min_w_pmos, PCH, 1, 1, g_tp.cell_h_def) + + drain_C_(size*min_w_nmos, NCH, 1, 1, g_tp.cell_h_def) + + gate_C(tr_size*(min_w_pmos), 0)) * + deviceType->Vdd * deviceType->Vdd; + + power.searchOp.dynamic += 0.5 * + (2*drain_C_(size*min_w_pmos, PCH, 1, 1, g_tp.cell_h_def) + + drain_C_(size*min_w_nmos, NCH, 1, 1, g_tp.cell_h_def) + + gate_C(tr_size*(min_w_pmos), 0)) * + deviceType->Vdd * deviceType->Vdd*init_wire_bw; + + //not + power.readOp.dynamic += 0.5 * + (drain_C_(size*min_w_pmos, PCH, 1, 1, g_tp.cell_h_def) + +drain_C_(size*min_w_nmos, NCH, 1, 1, g_tp.cell_h_def) + +gate_C(size*(min_w_nmos + min_w_pmos), 0)) * + deviceType->Vdd * deviceType->Vdd; + + power.searchOp.dynamic += 0.5 * + (drain_C_(size*min_w_pmos, PCH, 1, 1, g_tp.cell_h_def) + +drain_C_(size*min_w_nmos, NCH, 1, 1, g_tp.cell_h_def) + +gate_C(size*(min_w_nmos + min_w_pmos), 0)) * + deviceType->Vdd * deviceType->Vdd*init_wire_bw; + + //nor + power.readOp.dynamic += 0.5 * + (drain_C_(size*min_w_pmos, PCH, 1, 1, g_tp.cell_h_def) + + 2*drain_C_(size*min_w_nmos, NCH, 1, 1, g_tp.cell_h_def) + +gate_C(tr_size*(min_w_nmos + min_w_pmos), 0)) * + deviceType->Vdd * deviceType->Vdd; + + power.searchOp.dynamic += 0.5 * + (drain_C_(size*min_w_pmos, PCH, 1, 1, g_tp.cell_h_def) + + 2*drain_C_(size*min_w_nmos, NCH, 1, 1, g_tp.cell_h_def) + +gate_C(tr_size*(min_w_nmos + min_w_pmos), 0)) * + deviceType->Vdd * deviceType->Vdd*init_wire_bw; + + //output transistor + power.readOp.dynamic += 0.5 * + ((drain_C_(tr_size*min_w_pmos, PCH, 1, 1, g_tp.cell_h_def) + +drain_C_(tr_size*min_w_nmos, NCH, 1, 1, g_tp.cell_h_def))*2 + + gate_C(s1*(min_w_nmos + min_w_pmos), 0)) * + deviceType->Vdd * deviceType->Vdd; + + power.searchOp.dynamic += 0.5 * + ((drain_C_(tr_size*min_w_pmos, PCH, 1, 1, g_tp.cell_h_def) + +drain_C_(tr_size*min_w_nmos, NCH, 1, 1, g_tp.cell_h_def))*2 + + gate_C(s1*(min_w_nmos + min_w_pmos), 0)) * + deviceType->Vdd * deviceType->Vdd*init_wire_bw; + + if(uca_tree) { + power.readOp.leakage += cmos_Isub_leakage(min_w_nmos*tr_size*2, min_w_pmos*tr_size*2, 1, inv)*deviceType->Vdd*wire_bw;/*inverter + output tr*/ + power.readOp.leakage += cmos_Isub_leakage(min_w_nmos*size*3, min_w_pmos*size*3, 2, nand)*deviceType->Vdd*wire_bw;//nand + power.readOp.leakage += cmos_Isub_leakage(min_w_nmos*size*3, min_w_pmos*size*3, 2, nor)*deviceType->Vdd*wire_bw;//nor + + power.readOp.gate_leakage += cmos_Ig_leakage(min_w_nmos*tr_size*2, min_w_pmos*tr_size*2, 1, inv)*deviceType->Vdd*wire_bw;/*inverter + output tr*/ + power.readOp.gate_leakage += cmos_Ig_leakage(min_w_nmos*size*3, min_w_pmos*size*3, 2, nand)*deviceType->Vdd*wire_bw;//nand + power.readOp.gate_leakage += cmos_Ig_leakage(min_w_nmos*size*3, min_w_pmos*size*3, 2, nor)*deviceType->Vdd*wire_bw;//nor + //power.readOp.gate_leakage *=; + } + else { + power.readOp.leakage += cmos_Isub_leakage(min_w_nmos*tr_size*2, min_w_pmos*tr_size*2, 1, inv)*deviceType->Vdd*wire_bw;/*inverter + output tr*/ + power.readOp.leakage += cmos_Isub_leakage(min_w_nmos*size*3, min_w_pmos*size*3, 2, nand)*deviceType->Vdd*wire_bw;//nand + power.readOp.leakage += cmos_Isub_leakage(min_w_nmos*size*3, min_w_pmos*size*3, 2, nor)*deviceType->Vdd*wire_bw;//nor + + power.readOp.gate_leakage += cmos_Ig_leakage(min_w_nmos*tr_size*2, min_w_pmos*tr_size*2, 1, inv)*deviceType->Vdd*wire_bw;/*inverter + output tr*/ + power.readOp.gate_leakage += cmos_Ig_leakage(min_w_nmos*size*3, min_w_pmos*size*3, 2, nand)*deviceType->Vdd*wire_bw;//nand + power.readOp.gate_leakage += cmos_Ig_leakage(min_w_nmos*size*3, min_w_pmos*size*3, 2, nor)*deviceType->Vdd*wire_bw;//nor + //power.readOp.gate_leakage *=deviceType->Vdd*wire_bw; + } +} + + + +/* calculates the input h-tree delay/power + * A nand gate is used at each node to + * limit the signal + * The area of an unbalanced htree (rows != columns) + * depends on how data is traversed. + * In the following function, if ( no. of rows < no. of columns), + * then data first traverse in excess hor. links until vertical + * and horizontal nodes are same. + * If no. of rows is bigger, then data traverse in + * a hor. link followed by a ver. link in a repeated + * fashion (similar to a balanced tree) until there are no + * hor. links left. After this it goes through the remaining vertical + * links. + */ + void +Htree2::in_htree() +{ + //temp var + double s1 = 0, s2 = 0, s3 = 0; + double l_eff = 0; + Wire *wtemp1 = 0, *wtemp2 = 0, *wtemp3 = 0; + double len = 0, ht = 0; + int option = 0; + + int h = (int) _log2(ndwl/2); // horizontal nodes + int v = (int) _log2(ndbl/2); // vertical nodes + double len_temp; + double ht_temp; + if (uca_tree) + {//Sheng: this computation do not consider the wires that route from edge to middle. + ht_temp = (mat_height*ndbl/2 +/* since uca_tree models interbank tree, mat_height => bank height */ + ((add_bits + data_in_bits + data_out_bits + (search_data_in_bits + search_data_out_bits)) * g_tp.wire_outside_mat.pitch * + 2 * (1-pow(0.5,h))))/2; + len_temp = (mat_width*ndwl/2 + + ((add_bits + data_in_bits + data_out_bits + (search_data_in_bits + search_data_out_bits)) * g_tp.wire_outside_mat.pitch * + 2 * (1-pow(0.5,v))))/2; + } + else + { + if (ndwl == ndbl) { + ht_temp = ((mat_height*ndbl/2) + + ((add_bits + (search_data_in_bits + search_data_out_bits))* (ndbl/2-1) * g_tp.wire_outside_mat.pitch) + + ((data_in_bits + data_out_bits) * g_tp.wire_outside_mat.pitch * h) + )/2; + len_temp = (mat_width*ndwl/2 + + ((add_bits + (search_data_in_bits + search_data_out_bits)) * (ndwl/2-1) * g_tp.wire_outside_mat.pitch) + + ((data_in_bits + data_out_bits) * g_tp.wire_outside_mat.pitch * v))/2; + } + else if (ndwl > ndbl) { + double excess_part = (_log2(ndwl/2) - _log2(ndbl/2)); + ht_temp = ((mat_height*ndbl/2) + + ((add_bits + + (search_data_in_bits + search_data_out_bits)) * ((ndbl/2-1) + excess_part) * g_tp.wire_outside_mat.pitch) + + (data_in_bits + data_out_bits) * g_tp.wire_outside_mat.pitch * + (2*(1 - pow(0.5, h-v)) + pow(0.5, v-h) * v))/2; + len_temp = (mat_width*ndwl/2 + + ((add_bits + (search_data_in_bits + search_data_out_bits))* (ndwl/2-1) * g_tp.wire_outside_mat.pitch) + + ((data_in_bits + data_out_bits) * g_tp.wire_outside_mat.pitch * v))/2; + } + else { + double excess_part = (_log2(ndbl/2) - _log2(ndwl/2)); + ht_temp = ((mat_height*ndbl/2) + + ((add_bits + (search_data_in_bits + search_data_out_bits))* ((ndwl/2-1) + excess_part) * g_tp.wire_outside_mat.pitch) + + ((data_in_bits + data_out_bits) * g_tp.wire_outside_mat.pitch * h) + )/2; + len_temp = (mat_width*ndwl/2 + + ((add_bits + (search_data_in_bits + search_data_out_bits)) * ((ndwl/2-1) + excess_part) * g_tp.wire_outside_mat.pitch) + + (data_in_bits + data_out_bits) * g_tp.wire_outside_mat.pitch * (h + 2*(1-pow(0.5, v-h))))/2; + } + } + + area.h = ht_temp * 2; + area.w = len_temp * 2; + delay = 0; + power.readOp.dynamic = 0; + power.readOp.leakage = 0; + power.searchOp.dynamic =0; + len = len_temp; + ht = ht_temp/2; + + while (v > 0 || h > 0) + { + if (wtemp1) delete wtemp1; + if (wtemp2) delete wtemp2; + if (wtemp3) delete wtemp3; + + if (h > v) + { + //the iteration considers only one horizontal link + wtemp1 = new Wire(wt, len); // hor + wtemp2 = new Wire(wt, len/2); // ver + len_temp = len; + len /= 2; + wtemp3 = 0; + h--; + option = 0; + } + else if (v>0 && h>0) + { + //considers one horizontal link and one vertical link + wtemp1 = new Wire(wt, len); // hor + wtemp2 = new Wire(wt, ht); // ver + wtemp3 = new Wire(wt, len/2); // next hor + len_temp = len; + ht_temp = ht; + len /= 2; + ht /= 2; + v--; + h--; + option = 1; + } + else + { + // considers only one vertical link + assert(h == 0); + wtemp1 = new Wire(wt, ht); // ver + wtemp2 = new Wire(wt, ht/2); // hor + ht_temp = ht; + ht /= 2; + wtemp3 = 0; + v--; + option = 2; + } + + delay += wtemp1->delay; + power.readOp.dynamic += wtemp1->power.readOp.dynamic; + power.searchOp.dynamic += wtemp1->power.readOp.dynamic*wire_bw; + power.readOp.leakage += wtemp1->power.readOp.leakage*wire_bw; + power.readOp.gate_leakage += wtemp1->power.readOp.gate_leakage*wire_bw; + if ((uca_tree == false && option == 2) || search_tree==true) + { + wire_bw*=2; // wire bandwidth doubles only for vertical branches + } + + if (uca_tree == false) + { + if (len_temp > wtemp1->repeater_spacing) + { + s1 = wtemp1->repeater_size; + l_eff = wtemp1->repeater_spacing; + } + else + { + s1 = (len_temp/wtemp1->repeater_spacing) * wtemp1->repeater_size; + l_eff = len_temp; + } + + if (ht_temp > wtemp2->repeater_spacing) + { + s2 = wtemp2->repeater_size; + } + else + { + s2 = (len_temp/wtemp2->repeater_spacing) * wtemp2->repeater_size; + } + // first level + input_nand(s1, s2, l_eff); + } + + + if (option != 1) + { + continue; + } + + // second level + delay += wtemp2->delay; + power.readOp.dynamic += wtemp2->power.readOp.dynamic; + power.searchOp.dynamic += wtemp2->power.readOp.dynamic*wire_bw; + power.readOp.leakage += wtemp2->power.readOp.leakage*wire_bw; + power.readOp.gate_leakage += wtemp2->power.readOp.gate_leakage*wire_bw; + + if (uca_tree) + { + power.readOp.leakage += (wtemp2->power.readOp.leakage*wire_bw); + power.readOp.gate_leakage += wtemp2->power.readOp.gate_leakage*wire_bw; + } + else + { + power.readOp.leakage += (wtemp2->power.readOp.leakage*wire_bw); + power.readOp.gate_leakage += wtemp2->power.readOp.gate_leakage*wire_bw; + wire_bw*=2; + + if (ht_temp > wtemp3->repeater_spacing) + { + s3 = wtemp3->repeater_size; + l_eff = wtemp3->repeater_spacing; + } + else + { + s3 = (len_temp/wtemp3->repeater_spacing) * wtemp3->repeater_size; + l_eff = ht_temp; + } + + input_nand(s2, s3, l_eff); + } + } + + if (wtemp1) delete wtemp1; + if (wtemp2) delete wtemp2; + if (wtemp3) delete wtemp3; +} + + + +/* a tristate buffer is used to handle fan-ins + * The area of an unbalanced htree (rows != columns) + * depends on how data is traversed. + * In the following function, if ( no. of rows < no. of columns), + * then data first traverse in excess hor. links until vertical + * and horizontal nodes are same. + * If no. of rows is bigger, then data traverse in + * a hor. link followed by a ver. link in a repeated + * fashion (similar to a balanced tree) until there are no + * hor. links left. After this it goes through the remaining vertical + * links. + */ +void Htree2::out_htree() +{ + //temp var + double s1 = 0, s2 = 0, s3 = 0; + double l_eff = 0; + Wire *wtemp1 = 0, *wtemp2 = 0, *wtemp3 = 0; + double len = 0, ht = 0; + int option = 0; + + int h = (int) _log2(ndwl/2); + int v = (int) _log2(ndbl/2); + double len_temp; + double ht_temp; + if (uca_tree) + { + ht_temp = (mat_height*ndbl/2 +/* since uca_tree models interbank tree, mat_height => bank height */ + ((add_bits + data_in_bits + data_out_bits + (search_data_in_bits + search_data_out_bits)) * g_tp.wire_outside_mat.pitch * + 2 * (1-pow(0.5,h))))/2; + len_temp = (mat_width*ndwl/2 + + ((add_bits + data_in_bits + data_out_bits + (search_data_in_bits + search_data_out_bits)) * g_tp.wire_outside_mat.pitch * + 2 * (1-pow(0.5,v))))/2; + } + else + { + if (ndwl == ndbl) { + ht_temp = ((mat_height*ndbl/2) + + ((add_bits+ (search_data_in_bits + search_data_out_bits)) * (ndbl/2-1) * g_tp.wire_outside_mat.pitch) + + ((data_in_bits + data_out_bits) * g_tp.wire_outside_mat.pitch * h) + )/2; + len_temp = (mat_width*ndwl/2 + + ((add_bits + (search_data_in_bits + search_data_out_bits)) * (ndwl/2-1) * g_tp.wire_outside_mat.pitch) + + ((data_in_bits + data_out_bits) * g_tp.wire_outside_mat.pitch * v))/2; + + } + else if (ndwl > ndbl) { + double excess_part = (_log2(ndwl/2) - _log2(ndbl/2)); + ht_temp = ((mat_height*ndbl/2) + + ((add_bits + (search_data_in_bits + search_data_out_bits)) * ((ndbl/2-1) + excess_part) * g_tp.wire_outside_mat.pitch) + + (data_in_bits + data_out_bits) * g_tp.wire_outside_mat.pitch * + (2*(1 - pow(0.5, h-v)) + pow(0.5, v-h) * v))/2; + len_temp = (mat_width*ndwl/2 + + ((add_bits + (search_data_in_bits + search_data_out_bits))* (ndwl/2-1) * g_tp.wire_outside_mat.pitch) + + ((data_in_bits + data_out_bits) * g_tp.wire_outside_mat.pitch * v))/2; + } + else { + double excess_part = (_log2(ndbl/2) - _log2(ndwl/2)); + ht_temp = ((mat_height*ndbl/2) + + ((add_bits + (search_data_in_bits + search_data_out_bits))* ((ndwl/2-1) + excess_part) * g_tp.wire_outside_mat.pitch) + + ((data_in_bits + data_out_bits) * g_tp.wire_outside_mat.pitch * h) + )/2; + len_temp = (mat_width*ndwl/2 + + ((add_bits + (search_data_in_bits + search_data_out_bits))* ((ndwl/2-1) + excess_part) * g_tp.wire_outside_mat.pitch) + + (data_in_bits + data_out_bits) * g_tp.wire_outside_mat.pitch * (h + 2*(1-pow(0.5, v-h))))/2; + } + } + area.h = ht_temp * 2; + area.w = len_temp * 2; + delay = 0; + power.readOp.dynamic = 0; + power.readOp.leakage = 0; + power.readOp.gate_leakage = 0; + //cout<<"power.readOp.gate_leakage"<<power.readOp.gate_leakage<<endl; + len = len_temp; + ht = ht_temp/2; + + while (v > 0 || h > 0) + { //finds delay/power of each link in the tree + if (wtemp1) delete wtemp1; + if (wtemp2) delete wtemp2; + if (wtemp3) delete wtemp3; + + if(h > v) { + //the iteration considers only one horizontal link + wtemp1 = new Wire(wt, len); // hor + wtemp2 = new Wire(wt, len/2); // ver + len_temp = len; + len /= 2; + wtemp3 = 0; + h--; + option = 0; + } + else if (v>0 && h>0) { + //considers one horizontal link and one vertical link + wtemp1 = new Wire(wt, len); // hor + wtemp2 = new Wire(wt, ht); // ver + wtemp3 = new Wire(wt, len/2); // next hor + len_temp = len; + ht_temp = ht; + len /= 2; + ht /= 2; + v--; + h--; + option = 1; + } + else { + // considers only one vertical link + assert(h == 0); + wtemp1 = new Wire(wt, ht); // hor + wtemp2 = new Wire(wt, ht/2); // ver + ht_temp = ht; + ht /= 2; + wtemp3 = 0; + v--; + option = 2; + } + delay += wtemp1->delay; + power.readOp.dynamic += wtemp1->power.readOp.dynamic; + power.searchOp.dynamic += wtemp1->power.readOp.dynamic*init_wire_bw; + power.readOp.leakage += wtemp1->power.readOp.leakage*wire_bw; + power.readOp.gate_leakage += wtemp1->power.readOp.gate_leakage*wire_bw; + //cout<<"power.readOp.gate_leakage"<<power.readOp.gate_leakage<<endl; + if ((uca_tree == false && option == 2) || search_tree==true) + { + wire_bw*=2; + } + + if (uca_tree == false) + { + if (len_temp > wtemp1->repeater_spacing) + { + s1 = wtemp1->repeater_size; + l_eff = wtemp1->repeater_spacing; + } + else + { + s1 = (len_temp/wtemp1->repeater_spacing) * wtemp1->repeater_size; + l_eff = len_temp; + } + if (ht_temp > wtemp2->repeater_spacing) + { + s2 = wtemp2->repeater_size; + } + else + { + s2 = (len_temp/wtemp2->repeater_spacing) * wtemp2->repeater_size; + } + // first level + output_buffer(s1, s2, l_eff); + } + + + if (option != 1) + { + continue; + } + + // second level + delay += wtemp2->delay; + power.readOp.dynamic += wtemp2->power.readOp.dynamic; + power.searchOp.dynamic += wtemp2->power.readOp.dynamic*init_wire_bw; + power.readOp.leakage += wtemp2->power.readOp.leakage*wire_bw; + power.readOp.gate_leakage += wtemp2->power.readOp.gate_leakage*wire_bw; + //cout<<"power.readOp.gate_leakage"<<power.readOp.gate_leakage<<endl; + if (uca_tree) + { + power.readOp.leakage += (wtemp2->power.readOp.leakage*wire_bw); + power.readOp.gate_leakage += wtemp2->power.readOp.gate_leakage*wire_bw; + } + else + { + power.readOp.leakage += (wtemp2->power.readOp.leakage*wire_bw); + power.readOp.gate_leakage += wtemp2->power.readOp.gate_leakage*wire_bw; + wire_bw*=2; + + if (ht_temp > wtemp3->repeater_spacing) + { + s3 = wtemp3->repeater_size; + l_eff = wtemp3->repeater_spacing; + } + else + { + s3 = (len_temp/wtemp3->repeater_spacing) * wtemp3->repeater_size; + l_eff = ht_temp; + } + + output_buffer(s2, s3, l_eff); + } + //cout<<"power.readOp.leakage"<<power.readOp.leakage<<endl; + //cout<<"power.readOp.gate_leakage"<<power.readOp.gate_leakage<<endl; + //cout<<"wtemp2->power.readOp.gate_leakage"<<wtemp2->power.readOp.gate_leakage<<endl; + } + + if (wtemp1) delete wtemp1; + if (wtemp2) delete wtemp2; + if (wtemp3) delete wtemp3; +} + |