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sst/core/techModels/libMcPATbeta/crossbar.h

00001 /*------------------------------------------------------------
00002  *                              CACTI 6.5
00003  *         Copyright 2008 Hewlett-Packard Development Corporation
00004  *                         All Rights Reserved
00005  *
00006  * Permission to use, copy, and modify this software and its documentation is
00007  * hereby granted only under the following terms and conditions.  Both the
00008  * above copyright notice and this permission notice must appear in all copies
00009  * of the software, derivative works or modified versions, and any portions
00010  * thereof, and both notices must appear in supporting documentation.
00011  *
00012  * Users of this software agree to the terms and conditions set forth herein, and
00013  * hereby grant back to Hewlett-Packard Company and its affiliated companies ("HP")
00014  * a non-exclusive, unrestricted, royalty-free right and license under any changes,
00015  * enhancements or extensions  made to the core functions of the software, including
00016  * but not limited to those affording compatibility with other hardware or software
00017  * environments, but excluding applications which incorporate this software.
00018  * Users further agree to use their best efforts to return to HP any such changes,
00019  * enhancements or extensions that they make and inform HP of noteworthy uses of
00020  * this software.  Correspondence should be provided to HP at:
00021  *
00022  *                       Director of Intellectual Property Licensing
00023  *                       Office of Strategy and Technology
00024  *                       Hewlett-Packard Company
00025  *                       1501 Page Mill Road
00026  *                       Palo Alto, California  94304
00027  *
00028  * This software may be distributed (but not offered for sale or transferred
00029  * for compensation) to third parties, provided such third parties agree to
00030  * abide by the terms and conditions of this notice.
00031  *
00032  * THE SOFTWARE IS PROVIDED "AS IS" AND HP DISCLAIMS ALL
00033  * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
00034  * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL HP
00035  * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
00036  * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
00037  * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
00038  * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
00039  * SOFTWARE.
00040  *------------------------------------------------------------*/
00041 
00042 
00043 #ifndef __CROSSBAR__
00044 #define __CROSSBAR__
00045 
00046 #include <assert.h>
00047 #include <iostream>
00048 #include "basic_circuit.h"
00049 #include "cacti_interface.h"
00050 #include "McPATcomponent.h"
00051 #include "parameter.h"
00052 #include "mat.h"
00053 #include "wire.h"
00054 
00055 class Crossbar : public McPATComponent
00056 {
00057   public:
00058     Crossbar(
00059       double in,
00060       double out,
00061       double flit_sz,
00062       TechnologyParameter::DeviceType *dt = &(g_tp.peri_global));
00063     ~Crossbar();
00064 
00065     void print_crossbar();
00066     double output_buffer();
00067     void compute_power();
00068 
00069     double n_inp, n_out;
00070     double flit_size;
00071     double tri_inp_cap, tri_out_cap, tri_ctr_cap, tri_int_cap;
00072 
00073   private:
00074           double CB_ADJ;
00075           /*
00076            * Adjust factor of the height of the cross-point (tri-state buffer) cell (layout) in crossbar
00077            * buffer is adjusted to get an aspect ratio of whole cross bar close to one;
00078            * when adjust the ratio, the number of wires route over the tri-state buffers does not change,
00079            * however, the effective wiring pitch changes. Specifically, since CB_ADJ will increase
00080            * during the adjust, the tri-state buffer will become taller and thiner, and the effective wiring pitch
00081            * will increase. As a result, the height of the crossbar (area.h) will increase.
00082            */
00083 
00084         TechnologyParameter::DeviceType *deviceType;
00085     double TriS1, TriS2;
00086     double min_w_pmos, Vdd;
00087 
00088 };
00089 
00090 
00091 
00092 
00093 #endif

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