GenericRouterPhy Class Reference

#include <genericRouterPhy.h>

Inheritance diagram for GenericRouterPhy:

List of all members.

Public Member Functions

GenericRouterPhy ()

~GenericRouterPhy ()

void init (uint ports, uint vcs, uint credits, uint buffer_size)

void set_no_nodes (uint nodes)

These functions are mainly for DOR routing and are seperated so as to not force DOR modelling in all designs.

void set_grid_x_location (uint a, uint b, uint c)

void set_grid_y_location (uint a, uint b, uint c)

void send_credit_back (uint i)

void process_event (IrisEvent *e)

string toString () const

string print_stats ()

Prints out all the accumulated stats at the end of the simulation. Routers have a print_stats component that gets called on all routers at the end of the simulation. For information on where this is called look at either the main front end file at manifold_simiris.cc or the corresponding topology file that you are running.

Public Attributes

vector< vector< uint > > downstream_credits

uint packets

uint flits

double total_packet_latency

double last_flit_out_cycle

unsigned long long int stat_sim_total_time

vector< vector< uint > > stat_packet_out

vector< vector< uint > > stat_flit_out

Private Member Functions

void handle_link_arrival_event (IrisEvent *e)

Event handle for the LINK_ARRIVAL_EVENT event. Entry from DES kernel.

void handle_tick_event (IrisEvent *e)

Event handle for the TICK_EVENT. Entry from DES kernel This implements the pipe stages for the router. Easy way to follow it. There are as many messages in the system as ports*vcs. Loop over the input_buffer_state ( ports*vcs ) times. Check for a message in a certain pipe stage and do that pipe stage.

void do_switch_traversal ()

void do_switch_allocation ()

void do_input_buffering ()

Private Attributes

vector< GenericBuffer > in_buffers

vector< GenericRC > decoders

vector< InputBufferState > input_buffer_state

PToPSwitchArbiter swa

GenericCrossbar xbar

bool ticking

Detailed Description

Definition at line 71 of file genericRouterPhy.h.

Constructor & Destructor Documentation

GenericRouterPhy::GenericRouterPhy ( )

Definition at line 25 of file genericRouterPhy.cc.

References NetworkComponent::name, and ticking.

GenericRouterPhy::~GenericRouterPhy ( )

Definition at line 31 of file genericRouterPhy.cc.

Member Function Documentation

void GenericRouterPhy::do_input_buffering ( ) [private]

Body and tail flits get written in link arrival and since the message state may already been pushed to ST because of the header we want to ensure that all flits go thru an IB and ST stage. Hence ST is done on the flits_in_ib information and not buffer occupancy.

Definition at line 563 of file genericRouterPhy.cc.

References _DBG, FULL, IB, in_buffers, input_buffer_state, istat, NetworkComponent::node_ip, Simulator::Now(), Router::ports, IrisStats::stat_router, SW_TRAVERSAL, SWA_REQUESTED, ticking, and Router::vcs.

Referenced by handle_tick_event().

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void GenericRouterPhy::do_switch_allocation ( ) [private]

Definition at line 503 of file genericRouterPhy.cc.

References _DBG, PToPSwitchArbiter::clear_requested(), GenericCrossbar::configure_crossbar(), FULL, input_buffer_state, PToPSwitchArbiter::is_empty(), istat, NetworkComponent::node_ip, PToPSwitchArbiter::pick_winner(), SA_unit::port, Router::ports, GenericCrossbar::push(), IrisStats::stat_router, SW_TRAVERSAL, swa, SWA_REQUESTED, ticking, Router::vcs, and xbar.

Referenced by handle_tick_event().

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void GenericRouterPhy::do_switch_traversal ( ) [private]

Definition at line 394 of file genericRouterPhy.cc.

References _DBG, NetworkComponent::address, TailFlit::avg_network_latency, HeadFlit::avg_network_latency, BODY, PToPSwitchArbiter::clear_winner(), data, do_two_stage_router, downstream_credits, EMPTY, FLIT_ID, HEAD, TailFlit::hop_count, HeadFlit::hop_count, in_buffers, input_buffer_state, GenericCrossbar::is_empty(), Flit::is_single_flit_pkt, istat, last_flit_out_cycle, LINK_ARRIVAL_EVENT, NetworkComponent::node_ip, Simulator::Now(), Router::output_connections, Router::ports, NetworkComponent::process_event(), LinkArrivalData::ptr, GenericCrossbar::pull(), Simulator::Schedule(), send_credit_back(), stat_flit_out, stat_packet_out, IrisStats::stat_router, SW_TRAVERSAL, swa, TAIL, ticking, toString(), total_packet_latency, Flit::type, LinkArrivalData::type, LinkArrivalData::vc, Router::vcs, and xbar.

Referenced by handle_tick_event().

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void GenericRouterPhy::handle_link_arrival_event ( IrisEvent * e ) [private]

Event handle for the LINK_ARRIVAL_EVENT event. Entry from DES kernel.

Definition at line 235 of file genericRouterPhy.cc.

References _DBG, CREDIT_ID, data, decoders, downstream_credits, IrisEvent::event_data, FLIT_ID, flits, FULL, HEAD, in_buffers, input_buffer_state, Router::input_connections, Flit::is_single_flit_pkt, istat, HeadFlit::length, NetworkComponent::node_ip, Simulator::Now(), Router::output_connections, packets, Router::ports, NetworkComponent::process_event(), LinkArrivalData::ptr, Simulator::Schedule(), IrisEvent::src_id, IrisStats::stat_router, TAIL, TICK_EVENT, ticking, Flit::type, LinkArrivalData::type, IrisEvent::vc, LinkArrivalData::vc, and Router::vcs.

Referenced by process_event().

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void GenericRouterPhy::handle_tick_event ( IrisEvent * e ) [private]

Event handle for the TICK_EVENT. Entry from DES kernel This implements the pipe stages for the router. Easy way to follow it. There are as many messages in the system as ports*vcs. Loop over the input_buffer_state ( ports*vcs ) times. Check for a message in a certain pipe stage and do that pipe stage.

Definition at line 619 of file genericRouterPhy.cc.

References _DBG_NOARG, Router::credits, do_input_buffering(), do_switch_allocation(), do_switch_traversal(), downstream_credits, IB, in_buffers, input_buffer_state, PToPSwitchArbiter::is_requested(), Simulator::Now(), Router::ports, NetworkComponent::process_event(), PToPSwitchArbiter::request(), Simulator::Schedule(), swa, SWA_REQUESTED, TICK_EVENT, ticking, toString(), IrisEvent::vc, and Router::vcs.

Referenced by process_event().

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void GenericRouterPhy::init	(	uint	ports,
		uint	vcs,
		uint	credits,
		uint	buffer_size
	)			`[virtual]`

Implements Router.

Definition at line 36 of file genericRouterPhy.cc.

References PToPSwitchArbiter::address, NetworkComponent::address, Router::buffer_size, Router::credits, decoders, downstream_credits, EMPTY, flits, in_buffers, input_buffer_state, Component::myId(), PToPSwitchArbiter::node_ip, NetworkComponent::node_ip, packets, Router::ports, PToPSwitchArbiter::resize(), GenericCrossbar::setup(), stat_flit_out, stat_packet_out, swa, total_packet_latency, Router::vcs, and xbar.

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string GenericRouterPhy::print_stats ( void ) [virtual]

Prints out all the accumulated stats at the end of the simulation. Routers have a print_stats component that gets called on all routers at the end of the simulation. For information on where this is called look at either the main front end file at manifold_simiris.cc or the corresponding topology file that you are running.

Implements Router.

Definition at line 158 of file genericRouterPhy.cc.

References flits, last_flit_out_cycle, NetworkComponent::node_ip, packets, Router::ports, stat_flit_out, stat_packet_out, stat_print_level, and total_packet_latency.

void GenericRouterPhy::process_event ( IrisEvent * e ) [virtual]

Implements NetworkComponent.

Definition at line 124 of file genericRouterPhy.cc.

References _DBG, handle_link_arrival_event(), handle_tick_event(), LINK_ARRIVAL_EVENT, TICK_EVENT, and IrisEvent::type.

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void GenericRouterPhy::send_credit_back ( uint i )

Definition at line 704 of file genericRouterPhy.cc.

References _DBG, NetworkComponent::address, CREDIT_ID, data, input_buffer_state, Router::input_connections, LINK_ARRIVAL_EVENT, Simulator::Now(), NetworkComponent::process_event(), Simulator::Schedule(), LinkArrivalData::type, and LinkArrivalData::vc.

Referenced by do_switch_traversal().

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void GenericRouterPhy::set_grid_x_location	(	uint	a,
		uint	b,
		uint	c
	)			`[virtual]`

Implements Router.

Definition at line 110 of file genericRouterPhy.cc.

References decoders.

void GenericRouterPhy::set_grid_y_location	(	uint	a,
		uint	b,
		uint	c
	)			`[virtual]`

Implements Router.

Definition at line 116 of file genericRouterPhy.cc.

References decoders.

void GenericRouterPhy::set_no_nodes ( uint nodes ) [virtual]

These functions are mainly for DOR routing and are seperated so as to not force DOR modelling in all designs.

Implements Router.

Definition at line 100 of file genericRouterPhy.cc.

References decoders.

string GenericRouterPhy::toString ( ) const [virtual]

Reimplemented from Router.

Definition at line 678 of file genericRouterPhy.cc.

References NetworkComponent::address, decoders, in_buffers, NetworkComponent::node_ip, swa, GenericCrossbar::toString(), PToPSwitchArbiter::toString(), and xbar.

Referenced by do_switch_traversal(), and handle_tick_event().

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Member Data Documentation

vector<GenericRC> GenericRouterPhy::decoders [private]

Definition at line 102 of file genericRouterPhy.h.

Referenced by handle_link_arrival_event(), init(), set_grid_x_location(), set_grid_y_location(), set_no_nodes(), and toString().

vector< vector<uint> > GenericRouterPhy::downstream_credits

Definition at line 87 of file genericRouterPhy.h.

Referenced by do_switch_traversal(), handle_link_arrival_event(), handle_tick_event(), and init().

uint GenericRouterPhy::flits

Definition at line 91 of file genericRouterPhy.h.

Referenced by handle_link_arrival_event(), init(), and print_stats().

vector<GenericBuffer> GenericRouterPhy::in_buffers [private]

Definition at line 101 of file genericRouterPhy.h.

Referenced by do_input_buffering(), do_switch_traversal(), handle_link_arrival_event(), handle_tick_event(), init(), and toString().

vector<InputBufferState> GenericRouterPhy::input_buffer_state [private]

Definition at line 103 of file genericRouterPhy.h.

Referenced by do_input_buffering(), do_switch_allocation(), do_switch_traversal(), handle_link_arrival_event(), handle_tick_event(), init(), and send_credit_back().

double GenericRouterPhy::last_flit_out_cycle

Definition at line 93 of file genericRouterPhy.h.

Referenced by do_switch_traversal(), and print_stats().

uint GenericRouterPhy::packets

Definition at line 90 of file genericRouterPhy.h.

Referenced by handle_link_arrival_event(), init(), and print_stats().

vector< vector<uint> > GenericRouterPhy::stat_flit_out

Definition at line 96 of file genericRouterPhy.h.

Referenced by do_switch_traversal(), init(), and print_stats().

vector< vector<uint> > GenericRouterPhy::stat_packet_out

Definition at line 95 of file genericRouterPhy.h.

Referenced by do_switch_traversal(), init(), and print_stats().

unsigned long long int GenericRouterPhy::stat_sim_total_time

Definition at line 94 of file genericRouterPhy.h.

PToPSwitchArbiter GenericRouterPhy::swa [private]

Definition at line 104 of file genericRouterPhy.h.

Referenced by do_switch_allocation(), do_switch_traversal(), handle_tick_event(), init(), and toString().

bool GenericRouterPhy::ticking [private]

Definition at line 107 of file genericRouterPhy.h.

Referenced by do_input_buffering(), do_switch_allocation(), do_switch_traversal(), GenericRouterPhy(), handle_link_arrival_event(), and handle_tick_event().

double GenericRouterPhy::total_packet_latency

Definition at line 92 of file genericRouterPhy.h.

Referenced by do_switch_traversal(), init(), and print_stats().

GenericCrossbar GenericRouterPhy::xbar [private]

Definition at line 105 of file genericRouterPhy.h.

Referenced by do_switch_allocation(), do_switch_traversal(), init(), and toString().

The documentation for this class was generated from the following files:


Public Member Functions
	GenericRouterPhy ()
	~GenericRouterPhy ()
void	init (uint ports, uint vcs, uint credits, uint buffer_size)
void	set_no_nodes (uint nodes)
	These functions are mainly for DOR routing and are seperated so as to not force DOR modelling in all designs.
void	set_grid_x_location (uint a, uint b, uint c)
void	set_grid_y_location (uint a, uint b, uint c)
void	send_credit_back (uint i)
void	process_event (IrisEvent *e)
string	toString () const
string	print_stats ()
	Prints out all the accumulated stats at the end of the simulation. Routers have a print_stats component that gets called on all routers at the end of the simulation. For information on where this is called look at either the main front end file at manifold_simiris.cc or the corresponding topology file that you are running.
Public Attributes
vector< vector< uint > >	downstream_credits
uint	packets
uint	flits
double	total_packet_latency
double	last_flit_out_cycle
unsigned long long int	stat_sim_total_time
vector< vector< uint > >	stat_packet_out
vector< vector< uint > >	stat_flit_out
Private Member Functions
void	handle_link_arrival_event (IrisEvent *e)
	Event handle for the LINK_ARRIVAL_EVENT event. Entry from DES kernel.
void	handle_tick_event (IrisEvent *e)
	Event handle for the TICK_EVENT. Entry from DES kernel This implements the pipe stages for the router. Easy way to follow it. There are as many messages in the system as portsvcs. Loop over the input_buffer_state ( portsvcs ) times. Check for a message in a certain pipe stage and do that pipe stage.
void	do_switch_traversal ()
void	do_switch_allocation ()
void	do_input_buffering ()
Private Attributes
vector< GenericBuffer >	in_buffers
vector< GenericRC >	decoders
vector< InputBufferState >	input_buffer_state
PToPSwitchArbiter	swa
GenericCrossbar	xbar
bool	ticking