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/*
* Copyright (c) 2009 Princeton University, and
* Regents of the University of California
* 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.
*
* Authors: Hangsheng Wang (Orion 1.0, Princeton)
* Xinping Zhu (Orion 1.0, Princeton)
* Xuning Chen (Orion 1.0, Princeton)
* Bin Li (Orion 2.0, Princeton)
* Kambiz Samadi (Orion 2.0, UC San Diego)
*/
#include <iostream>
#include <cassert>
#include "mem/ruby/network/orion/Allocator/SWAllocator.hh"
#include "mem/ruby/network/orion/OrionConfig.hh"
#include "mem/ruby/network/orion/Allocator/Arbiter.hh"
#include "mem/ruby/network/orion/Crossbar/Crossbar.hh"
using namespace std;
SWAllocator::SWAllocator(
uint32_t num_in_port_,
uint32_t num_out_port_,
uint32_t num_vclass_,
uint32_t num_vchannel_,
double len_in_wire_,
const string& local_arb_model_str_,
const string& local_arb_ff_model_str_,
const string& global_arb_model_str_,
const string& global_arb_ff_model_str_,
const TechParameter* tech_param_ptr_
)
{
assert(num_in_port_ == num_in_port_);
assert(num_out_port_ == num_out_port_);
assert(num_vclass_ == num_vclass_);
assert(num_vchannel_ == num_vchannel_);
assert(len_in_wire_ == len_in_wire_);
m_num_in_port = num_in_port_;
m_num_out_port = num_out_port_;
m_num_vclass = num_vclass_;
m_num_vchannel = num_vchannel_;
if ((m_num_vclass*m_num_vchannel) > 1)
{
m_local_arb_ptr = Arbiter::create_arbiter(
local_arb_model_str_, local_arb_ff_model_str_,
m_num_vclass*m_num_vchannel, 0, tech_param_ptr_);
}
else
{
m_local_arb_ptr = NULL;
}
if (m_num_in_port > 2)
{
m_global_arb_ptr = Arbiter::create_arbiter(
global_arb_model_str_, global_arb_ff_model_str_,
m_num_in_port-1, len_in_wire_, tech_param_ptr_);
}
else
{
m_global_arb_ptr = NULL;
}
}
SWAllocator::~SWAllocator()
{}
double SWAllocator::get_dynamic_energy_local_sw_arb(double num_req_, bool is_max_) const
{
double e_local_arb = 0;
if (m_local_arb_ptr)
{
e_local_arb = m_local_arb_ptr->calc_dynamic_energy(num_req_, is_max_);
}
return e_local_arb;
}
double SWAllocator::get_dynamic_energy_global_sw_arb(double num_req_, bool is_max_) const
{
double e_global_arb = 0;
if (m_global_arb_ptr)
{
e_global_arb = m_global_arb_ptr->calc_dynamic_energy(num_req_, is_max_);
}
return e_global_arb;
}
double SWAllocator::get_static_power() const
{
double p_va = 0;
if (m_local_arb_ptr)
{
// FIXME: might not be m_num_in_port;
p_va += m_local_arb_ptr->get_static_power()*m_num_in_port;
}
if (m_global_arb_ptr)
{
p_va += m_global_arb_ptr->get_static_power()*m_num_out_port;
}
return p_va;
}
void SWAllocator::print_all() const
{
cout << "SWAllocator:" << endl;
if (m_local_arb_ptr)
{
for (uint32_t i = 0; i < m_num_vclass*m_num_vchannel; i++)
{
cout << "\t" << "Local arb (" << i << ") = " << get_dynamic_energy_local_sw_arb(i, false) << endl;
}
}
if (m_global_arb_ptr)
{
for (uint32_t i = 0; i < m_num_in_port-1; i++)
{
cout << "\t" << "Global arb (" << i << ") = " << get_dynamic_energy_global_sw_arb(i, false) << endl;
}
}
cout << "\t" << "Static power = " << get_static_power() << endl;
return;
}
SWAllocator* SWAllocator::create_swallocator(
uint32_t num_in_port_,
uint32_t num_out_port_,
uint32_t num_vclass_,
uint32_t num_vchannel_,
const Crossbar* xbar_ptr_,
const OrionConfig* orion_cfg_ptr_
)
{
double len_in_wire = xbar_ptr_->get_len_req_wire();
const string& local_arb_model_str = orion_cfg_ptr_->get<string>("SA_IN_ARB_MODEL");
const string& local_arb_ff_model_str = orion_cfg_ptr_->get<string>("SA_IN_ARB_FF_MODEL");
const string& global_arb_model_str = orion_cfg_ptr_->get<string>("SA_OUT_ARB_MODEL");
const string& global_arb_ff_model_str = orion_cfg_ptr_->get<string>("SA_OUT_ARB_FF_MODEL");
const TechParameter* tech_param_ptr = orion_cfg_ptr_->get_tech_param_ptr();
return new SWAllocator(num_in_port_, num_out_port_, num_vclass_, num_vchannel_,
len_in_wire, local_arb_model_str, local_arb_ff_model_str,
global_arb_model_str, global_arb_ff_model_str,tech_param_ptr);
}
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