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loc_sim_main_v2.cc
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loc_sim_main_v2.cc
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#include <iostream>
#include <fstream>
#include <sstream>
#include <string>
#include <cstdlib>
#include <climits>
#include <vector>
#include <map>
#include <cmath>
#include <cassert>
#include <ctime>
#include <sys/timeb.h>
#include "head/queue.h"
#include "head/basics.h"
#include "head/write_func.h"
#include "head/comp_real_er.h"
#include "head/call_abc.h"
#include "head/helper.h"
#include "head/loc_sim_main_v2.h"
#include "head/sim_new_abc_max.h"
#include "head/sim_new_abc_ave.h"
#include "head/simu_ckt.h"
#include "head/read_file.h"
#include "cudd/bnet.h"
#include "cudd/cudd_build_v2.h"
#include "/home/wuyi/usr/CUDD/cudd-2.5.0/cudd/cudd.h"
#include "/home/wuyi/usr/CUDD/cudd-2.5.0/cudd/cuddInt.h"
using namespace std;
//Global variables
vector<string> ckt_org_po;
map<string, set<char*> > po_tfi;
map<string, set<string> > po_inputs;
map<string, vector<string> > po_cone_string;
vector<string> sub_abs_ckt, sub_abs_pi, sub_abs_po;
vector<string> comparator_ckt, comparator_pi, comparator_po;
vector<int> comp_number;
int flag_dyn = 0;
double er_weight = 1, em_weight = 1;
double ini_ratio = er_weight/em_weight;
double ave_error_max, ave_error_max_cur, max_weight_max, max_weight_max_cur, real_er_max, real_er_max_cur;
int lit_save_pre = 0;
//external variables
extern int em_class; //1: max, 2: ave
extern int numPI_ini, numPO_ini;
extern double ini_threshold_er, ini_threshold_em;
extern string diff_file, comparator_file;
/*
functions in this file:
int loc_sim_ite();
int loc_sim_main();
*/
/*1. loc_sim_ite*/
int loc_sim_ite(BnetNetwork *net, BnetNetwork *&net_comb, DdManager **dd_comb, map<string, struct score_pla> &sim_record, multimap<double, struct score_pla> &sim_record_top, map<string, map<string, double> > &node_pattern_rate, map<string, int> &internal_index, map<string, struct wi_pair> &sim_output_wi, struct po_index_set &pis, vector<string> &rand, vector<string> &simu_res, int &num_output, double threshold_er, double threshold_em, double &real_er, double &real_em, int &min_modified_po, int &max_modified_po, double &T_er, double T_er1, double &T_em, double T_em1, int &iIndex)
{
//variables
struct timeb startTime, endTime;
BnetNode *nd, *nd1;
multimap<double, char*> ave_sp;
FILE *fp;
DdManager *dd = NULL;
cout << "at the start of loc_sim_ite, real_er = " << real_er << endl;
cout << "min_modified_po = " << min_modified_po << ", max_modified_po = " << max_modified_po << endl;
//iterators
multimap<double, char*>::iterator itrm_dc;
set<char*>::iterator itrs;
map<string, struct wi_pair>::iterator itrm_sw;
//print out the affected primary outputs of each node
nd = net->nodes;
while(nd != NULL)
{
nd1 = net->nodes;
while(nd1 != NULL)
{
nd1->visited = 0;
nd1 = nd1->next;
}
set<char*> po_set;
find_tranfanout_po(net, nd->name, po_set);
cout << endl << "current node " << nd->name << "'s affected pos: " << po_set.size() << endl;
for(itrs = po_set.begin(); itrs != po_set.end(); itrs++)
cout << *itrs << " ";
cout << endl;
nd = nd->next;
}
map<string, double> node_sp_simu;
map<string, double>::iterator itrm_sd;
double ave_error_mag = 0;
if(iIndex == 0)
{
cout << "running simulation for the first iteration: " << endl;
simu_ckt_both(net, node_pattern_rate, node_sp_simu, internal_index, sim_output_wi, pis, rand, simu_res, num_output, ave_error_mag, real_er, iIndex, 0);
}
//Find exdcs for each big node and simplify them using these exdcs. Obtain
//the one with maximum node save
cout << "****************************" << endl;
cout << "step2. find_exdc_sim: " << endl;
ftime(&startTime);
vector<string> final_pla; //store the files for the simplifed big node
double max_score = -1;
char *max_save_node;
cout << "iteration = " << iIndex << ", T_em = " << T_em << ", T_er = " << T_er << endl;
if (em_class == 1)
{
max_save_node = find_exdc_sim_max(net, &dd, net_comb, dd_comb, final_pla, sim_record, sim_record_top, internal_index, sim_output_wi, pis, rand, simu_res, num_output, node_pattern_rate, max_score, threshold_er, threshold_em, real_er, real_em, min_modified_po, max_modified_po, T_em, T_em1, iIndex);
}
else
{
if (flag_dyn && iIndex > 0)
{
double real_er_tmp;
if (real_er == 0) real_er_tmp = 0.005;
else real_er_tmp = real_er;
double er_margin = ini_threshold_er/real_er_tmp;
double em_margin = ini_threshold_em/real_em;
double ratio = ini_ratio * (em_margin/er_margin);
em_weight = 1/(1+ratio);
er_weight = 1 - em_weight;
}
max_save_node = find_exdc_sim_ave(net, &dd, net_comb, dd_comb, final_pla, sim_record, sim_record_top, internal_index, sim_output_wi, pis, rand, simu_res, num_output, node_pattern_rate, max_score, threshold_er, threshold_em, real_er, real_em, min_modified_po, max_modified_po, T_em, T_em1, T_er, T_er1, iIndex);
}
ftime(&endTime);
double rt_step2 = ((endTime.time - startTime.time)*1000 + (endTime.millitm - startTime.millitm))/1000.0;
cout << "runtime for step2 find_exdc_sim: " << rt_step2 << endl;
if(iIndex > 0)
{
Bnet_FreeNetwork_Bdd(net_comb, *dd_comb);
#ifdef use_bdd
Cudd_Quit(*dd_comb);
#endif
}
if(max_score <= 0)
{
Bnet_FreeNetwork_Bdd(net, dd);
#ifdef use_bdd
Cudd_Quit(dd);
#endif
return -1;
}
//Write the whole simplified circuit into ckt_sim.blif
cout << "****************************" << endl;
cout << "step3. write_ckt_sim && sweep && map: " << endl;
ftime(&startTime);
write_ckt_sim(net, max_save_node, final_pla);
char com[100];
cout << "call SIS to sweep ckt_sim further" << endl;
sprintf(com, "sis -t none -f ./script/sim_ckt_v2.rug > sis_ckt.txt");
system(com);
cout << "Current stats by SIS: " << endl;
sprintf(com, "sis -t none -f ./script/map0.rug");
system(com);
Bnet_FreeNetwork_Bdd(net, dd);
update_ckt(net, dd);
ftime(&endTime);
double rt_step3 = ((endTime.time - startTime.time)*1000 + (endTime.millitm - startTime.millitm))/1000.0;
cout << "runtime for step3: " << rt_step3 << endl;
cout << "****************************" << endl;
cout << "step4. Write ckt_org_sim.blif and read the combined network: " << endl;
write_ckt_comb(net);
string filename = "./blif_files/ckt_org_sim.blif";
fp = fopen(filename.c_str(), "r");
net_comb = Bnet_ReadNetwork(fp);
fclose(fp);
cout << "****************************" << endl;
cout << "step5. run simulation: " << endl;
write_ckt_comb(net);
filename = "./blif_files/ckt_org_sim.blif";
fp = fopen(filename.c_str(), "r");
ftime(&startTime);
cout << "running simulation for checking real error rate (em_class = 1) and obtain the error rates of local input patterns: " << endl;
node_pattern_rate.clear();
node_sp_simu.clear();
internal_index.clear();
sim_output_wi.clear();
rand.clear();
simu_res.clear();
double real_er_simu = 0;
double real_er_prev = real_er;
// simu_ckt(net_comb, node_pattern_rate, node_sp_simu, real_er_simu, iIndex, 1);
simu_ckt_both(net_comb, node_pattern_rate, node_sp_simu, internal_index, sim_output_wi, pis, rand, simu_res, num_output, ave_error_mag, real_er_simu, iIndex, 1);
cout << "real_er_simu = " << real_er_simu << endl;
if (em_class == 1) real_er = real_er_simu;
ftime(&endTime);
double rt_step5 = ((endTime.time - startTime.time)*1000 + (endTime.millitm - startTime.millitm))/1000.0;
cout << "runtime for step5: " << rt_step5 << endl;
return 0;
}
/*2. loc_sim_main()*/
void loc_sim_main_v2(BnetNetwork *net, string &filename, double threshold_er, double threshold_em, double T_em0, double T_em1, double T_er0, double T_er1)
{
//variables
struct timeb st, et;
ini_threshold_er = threshold_er;
ini_threshold_em = threshold_em;
int iIndex = 0;
char com[100];
string str;
BnetNode *nd;
//iterators
set<char*>::iterator itrs;
write_ckt_org(net); //add buffers to output nodes
sprintf(com, "cp ./blif_files/ckt_org.blif ./blif_files/ckt_org0.blif");
system(com);
ifstream fin;
fin.open("./blif_files/ckt_org.blif", ios::in);
cout << "modified ckt_org: " << endl;
while(getline(fin, str))
cout << str << endl;
cout << endl;
fin.close();
Bnet_FreeNetwork(net);
FILE *fp;
fp = fopen("./blif_files/ckt_org.blif", "r");
net = Bnet_ReadNetwork(fp);
fclose(fp);
//get ckt_org_po
for (int i = 0; i < net->npos; i++)
{
char *po = net->outputs[i];
string po_str(po);
ckt_org_po.push_back(po_str);
}
//Read sub_abs file and comparator file
read_diff_comparator(diff_file, comparator_file, threshold_em, sub_abs_ckt, sub_abs_pi, sub_abs_po, comparator_ckt, comparator_pi, comparator_po, comp_number);
//start the iteration of local simplification
double real_er = 0, real_em = 0;
int min_modified_po = 1000, max_modified_po = -1;
ave_error_max = threshold_em;
max_weight_max = net->npos - 1;
real_er_max = 0.005;
ave_error_max_cur = 0;
real_er_max_cur = 0;
max_weight_max_cur = 0;
cout << "$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$" << endl;
cout << "i" << iIndex << ". iterations start: " << endl;
cout << "threshold_er = " << threshold_er << endl;
cout << "threshold_em = " << threshold_em << endl;
BnetNetwork *net_comb;
DdManager *dd_comb;
map<string, struct score_pla> sim_record;
map<string, struct score_pla>::iterator itrm_ss;
multimap<double, struct score_pla> sim_record_top;
map<string, map<string, double> > node_pattern_rate;
map<string, int> internal_index;
map<string, struct wi_pair> sim_output_wi;
struct po_index_set pis = {-1, -1, -1, -1};
vector<string> rand, simu_res;
int num_output;
ftime(&st);
sim_record_top.clear();
double T_em, T_er;
if (iIndex == 0)
{
T_er = T_er0;
T_em = T_em0;
}
int res = loc_sim_ite(net, net_comb, &dd_comb, sim_record, sim_record_top, node_pattern_rate, internal_index, sim_output_wi, pis, rand, simu_res, num_output, threshold_er, threshold_em, real_er, real_em, min_modified_po, max_modified_po, T_er, T_er1, T_em, T_em1, iIndex);
ftime(&et);
double rt_loc_sim_ite = ((et.time - st.time)*1000 + (et.millitm - st.millitm))/1000.0;
cout << "i" << iIndex << ". runtime for loc_sim_ite: " << rt_loc_sim_ite << endl;
if(res == -1)
{
cout << "max_save = 0. No more optimization!" << endl;
return;
}
cout << endl << "##############################################" << endl;
cout << "report: " << endl;
cout << "real_er = " << real_er << endl;
if (em_class == 2)
cout << "real_em = " << real_em << endl;
iIndex++;
threshold_er = ini_threshold_er - real_er;
while(real_er <= ini_threshold_er && real_em <= ini_threshold_em)
{
cout << "$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$" << endl;
cout << "i" << iIndex << ". iterations start: " << endl;
cout << "threshold_er = " << threshold_er << endl;
cout << "threshold_em = " << threshold_em << endl;
ftime(&st);
cout << "T_em = " << T_em << endl;
sim_record_top.clear();
res = loc_sim_ite(net, net_comb, &dd_comb, sim_record, sim_record_top, node_pattern_rate, internal_index, sim_output_wi, pis, rand, simu_res, num_output, threshold_er, threshold_em, real_er, real_em, min_modified_po, max_modified_po, T_er, T_er1, T_em, T_em1, iIndex);
ftime(&et);
rt_loc_sim_ite = ((et.time - st.time)*1000 + (et.millitm - st.millitm))/1000.0;
cout << "i" << iIndex << ". runtime for loc_sim_ite: " << rt_loc_sim_ite << endl;
if(res == -1)
{
cout << "max_save = 0. No more optimization!" << endl;
cout << "final real_er = " << real_er << endl;
if (em_class == 2)
cout << "final real_em = " << real_em << endl;
return;
}
cout << endl << "##############################################" << endl;
cout << "report: " << endl;
cout << "real_er = " << real_er << endl;
if (em_class == 2)
cout << "real_em = " << real_em << endl;
iIndex++;
threshold_er = ini_threshold_er - real_er;
}
return;
}