gem5/ext/mcpat/cacti/router.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

115 lines
3.7 KiB
C++

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#ifndef __ROUTER_H__
#define __ROUTER_H__
#include <assert.h>
#include <iostream>
#include "arbiter.h"
#include "basic_circuit.h"
#include "cacti_interface.h"
#include "component.h"
#include "crossbar.h"
#include "mat.h"
#include "parameter.h"
#include "wire.h"
class Router : public Component {
public:
Router(
double flit_size_,
double vc_buf, /* vc size = vc_buffer_size * flit_size */
double vc_count,
TechnologyParameter::DeviceType *dt = &(g_tp.peri_global),
double I_ = 5,
double O_ = 5,
double M_ = 0.6);
~Router();
void print_router();
Component arbiter, crossbar, buffer;
double cycle_time, max_cyc;
double flit_size;
double vc_count;
double vc_buffer_size; /* vc size = vc_buffer_size * flit_size */
private:
TechnologyParameter::DeviceType *deviceType;
double FREQUENCY; // move this to config file --TODO
double Cw3(double len);
double gate_cap(double w);
double diff_cap(double w, int type /*0 for n-mos and 1 for p-mos*/, double stack);
enum Wire_type wtype;
enum Wire_placement wire_placement;
//corssbar
double NTtr, PTtr, wt, ht, I, O, NTi, PTi, NTid, PTid, NTod, PTod, TriS1, TriS2;
double M; //network load
double transmission_buf_inpcap();
double transmission_buf_outcap();
double transmission_buf_ctrcap();
double crossbar_inpline();
double crossbar_outline();
double crossbar_ctrline();
double tr_crossbar_power();
void cb_stats ();
double arb_power();
void arb_stats ();
double buffer_params();
void buffer_stats();
//arbiter
//buffer
//router params
double Vdd;
void calc_router_parameters();
void get_router_area();
void get_router_power();
void get_router_delay();
double min_w_pmos;
};
#endif