0deef376d9
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.
116 lines
3.7 KiB
C++
116 lines
3.7 KiB
C++
/*****************************************************************************
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* McPAT/CACTI
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* SOFTWARE LICENSE AGREEMENT
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* Copyright 2012 Hewlett-Packard Development Company, L.P.
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* Copyright (c) 2010-2013 Advanced Micro Devices, Inc.
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* All Rights Reserved
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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***************************************************************************/
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#ifndef __ROUTER_H__
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#define __ROUTER_H__
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#include <assert.h>
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#include <iostream>
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#include "arbiter.h"
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#include "basic_circuit.h"
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#include "cacti_interface.h"
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#include "component.h"
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#include "crossbar.h"
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#include "mat.h"
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#include "parameter.h"
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#include "wire.h"
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class Router : public Component {
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public:
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Router(
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double flit_size_,
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double vc_buf, /* vc size = vc_buffer_size * flit_size */
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double vc_count,
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TechnologyParameter::DeviceType *dt = &(g_tp.peri_global),
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double I_ = 5,
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double O_ = 5,
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double M_ = 0.6);
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~Router();
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void print_router();
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Component arbiter, crossbar, buffer;
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double cycle_time, max_cyc;
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double flit_size;
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double vc_count;
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double vc_buffer_size; /* vc size = vc_buffer_size * flit_size */
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private:
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TechnologyParameter::DeviceType *deviceType;
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double FREQUENCY; // move this to config file --TODO
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double Cw3(double len);
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double gate_cap(double w);
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double diff_cap(double w, int type /*0 for n-mos and 1 for p-mos*/, double stack);
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enum Wire_type wtype;
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enum Wire_placement wire_placement;
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//corssbar
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double NTtr, PTtr, wt, ht, I, O, NTi, PTi, NTid, PTid, NTod, PTod, TriS1, TriS2;
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double M; //network load
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double transmission_buf_inpcap();
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double transmission_buf_outcap();
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double transmission_buf_ctrcap();
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double crossbar_inpline();
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double crossbar_outline();
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double crossbar_ctrline();
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double tr_crossbar_power();
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void cb_stats ();
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double arb_power();
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void arb_stats ();
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double buffer_params();
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void buffer_stats();
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//arbiter
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//buffer
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//router params
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double Vdd;
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void calc_router_parameters();
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void get_router_area();
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void get_router_power();
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void get_router_delay();
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double min_w_pmos;
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};
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#endif
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