gem5/ext/mcpat/cacti/basic_circuit.h
Yasuko Eckert 0deef376d9 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 13:32:59 -07:00

249 lines
5.6 KiB
C++

/*****************************************************************************
* McPAT/CACTI
* SOFTWARE LICENSE AGREEMENT
* Copyright 2012 Hewlett-Packard Development Company, L.P.
* Copyright (c) 2010-2013 Advanced Micro Devices, Inc.
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#ifndef __BASIC_CIRCUIT_H__
#define __BASIC_CIRCUIT_H__
#include "cacti_interface.h"
#include "const.h"
using namespace std;
#define UNI_LEAK_STACK_FACTOR 0.43
int powers (int base, int n);
bool is_pow2(int64_t val);
uint32_t _log2(uint64_t num);
int factorial(int n, int m = 1);
int combination(int n, int m);
//#define DBG
#ifdef DBG
#define PRINTDW(a);\
a;
#else
#define PRINTDW(a);\
#endif
enum Wire_placement {
outside_mat,
inside_mat,
local_wires
};
enum Htree_type {
Add_htree,
Data_in_htree,
Data_out_htree,
Search_in_htree,
Search_out_htree,
};
enum Gate_type {
nmos,
pmos,
inv,
nand,
nor,
tri,
tg
};
enum Half_net_topology {
parallel,
series
};
double logtwo (double x);
double gate_C(
double width,
double wirelength,
bool _is_dram = false,
bool _is_sram = false,
bool _is_wl_tr = false);
double gate_C_pass(
double width,
double wirelength,
bool _is_dram = false,
bool _is_sram = false,
bool _is_wl_tr = false);
double drain_C_(
double width,
int nchannel,
int stack,
int next_arg_thresh_folding_width_or_height_cell,
double fold_dimension,
bool _is_dram = false,
bool _is_sram = false,
bool _is_wl_tr = false);
double tr_R_on(
double width,
int nchannel,
int stack,
bool _is_dram = false,
bool _is_sram = false,
bool _is_wl_tr = false);
double R_to_w(
double res,
int nchannel,
bool _is_dram = false,
bool _is_sram = false,
bool _is_wl_tr = false);
double horowitz (
double inputramptime,
double tf,
double vs1,
double vs2,
int rise);
double pmos_to_nmos_sz_ratio(
bool _is_dram = false,
bool _is_wl_tr = false);
double simplified_nmos_leakage(
double nwidth,
bool _is_dram = false,
bool _is_cell = false,
bool _is_wl_tr = false);
double simplified_pmos_leakage(
double pwidth,
bool _is_dram = false,
bool _is_cell = false,
bool _is_wl_tr = false);
double cmos_Ileak(
double nWidth,
double pWidth,
bool _is_dram = false,
bool _is_cell = false,
bool _is_wl_tr = false);
double cmos_Ig_n(
double nWidth,
bool _is_dram = false,
bool _is_cell = false,
bool _is_wl_tr = false);
double cmos_Ig_p(
double pWidth,
bool _is_dram = false,
bool _is_cell = false,
bool _is_wl_tr = false);
double cmos_Isub_leakage(
double nWidth,
double pWidth,
int fanin,
enum Gate_type g_type,
bool _is_dram = false,
bool _is_cell = false,
bool _is_wl_tr = false,
enum Half_net_topology topo = series);
double cmos_Ig_leakage(
double nWidth,
double pWidth,
int fanin,
enum Gate_type g_type,
bool _is_dram = false,
bool _is_cell = false,
bool _is_wl_tr = false,
enum Half_net_topology topo = series);
double shortcircuit(
double vt,
double velocity_index,
double c_in,
double c_out,
double w_nmos,
double w_pmos,
double i_on_n,
double i_on_p,
double i_on_n_in,
double i_on_p_in,
double vdd);
double shortcircuit_simple(
double vt,
double velocity_index,
double c_in,
double c_out,
double w_nmos,
double w_pmos,
double i_on_n,
double i_on_p,
double i_on_n_in,
double i_on_p_in,
double vdd);
//set power point product mask; strictly speaking this is not real point product
inline void set_pppm(
double * pppv,
double a = 1,
double b = 1,
double c = 1,
double d = 1
) {
pppv[0] = a;
pppv[1] = b;
pppv[2] = c;
pppv[3] = d;
}
inline void set_sppm(
double * sppv,
double a = 1,
double b = 1,
double c = 1,
double d = 1
) {
sppv[0] = a;
sppv[1] = b;
sppv[2] = c;
}
#endif