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/*****************************************************************************
* 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.”
*
***************************************************************************/
#ifndef __CROSSBAR__
#define __CROSSBAR__
#include <assert.h>
#include <iostream>
#include "basic_circuit.h"
#include "cacti_interface.h"
#include "component.h"
#include "mat.h"
#include "parameter.h"
#include "wire.h"
class Crossbar : public Component
{
public:
Crossbar(
double in,
double out,
double flit_sz,
TechnologyParameter::DeviceType *dt = &(g_tp.peri_global));
~Crossbar();
void print_crossbar();
double output_buffer();
void compute_power();
double n_inp, n_out;
double flit_size;
double tri_inp_cap, tri_out_cap, tri_ctr_cap, tri_int_cap;
private:
double CB_ADJ;
/*
* Adjust factor of the height of the cross-point (tri-state buffer) cell (layout) in crossbar
* buffer is adjusted to get an aspect ratio of whole cross bar close to one;
* when adjust the ratio, the number of wires route over the tri-state buffers does not change,
* however, the effective wiring pitch changes. Specifically, since CB_ADJ will increase
* during the adjust, the tri-state buffer will become taller and thiner, and the effective wiring pitch
* will increase. As a result, the height of the crossbar (area.h) will increase.
*/
TechnologyParameter::DeviceType *deviceType;
double TriS1, TriS2;
double min_w_pmos, Vdd;
};
#endif
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