diff options
Diffstat (limited to 'src/mem/ruby/network/orion/Allocator/SWAllocator.cc')
-rw-r--r-- | src/mem/ruby/network/orion/Allocator/SWAllocator.cc | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/src/mem/ruby/network/orion/Allocator/SWAllocator.cc b/src/mem/ruby/network/orion/Allocator/SWAllocator.cc new file mode 100644 index 000000000..366779e45 --- /dev/null +++ b/src/mem/ruby/network/orion/Allocator/SWAllocator.cc @@ -0,0 +1,175 @@ +/* + * 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); +} |