RouterReqReply Class Reference

#include <routerReqReply.h>

Inheritance diagram for RouterReqReply:

List of all members.

Public Member Functions

RouterReqReply ()

~RouterReqReply ()

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 ()

void set_edge_links ()

void dump_buffer_state ()

Public Attributes

vector< vector< uint > > downstream_credits

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.

void handle_detect_deadlock_event (IrisEvent *)

void do_switch_traversal ()

void do_switch_allocation ()

void do_input_buffering ()

void do_virtual_channel_allocation ()

void request_switch_allocation ()

Private Attributes

vector< GenericBuffer > in_buffers

vector< GenericRC > decoders

vector< InputBufferState > input_buffer_state

VcaMsgAware vca

vector< vector< uint > > sw_alloc

vector< vector< uint > > request_op

vector< uint > available_ports

vector< uint > available_vcs

vector< vector< uint > > cr_time

bool ticking

double stat_buffer_occupancy

uint stat_packets

uint stat_flits

double stat_total_packet_latency

double last_flit_out_cycle

double stat_swa_fail_msg_ratio

double stat_swa_load

double stat_vca_fail_msg_ratio

double stat_vca_load

ullint stat_sim_total_time

vector< vector< uint > > stat_packet_out

vector< vector< uint > > stat_flit_out

bool is_mc_router

ullint stat_ib_cycles

ullint stat_rc_cycles

ullint stat_vca_cycles

ullint stat_swa_cycles

ullint stat_st_cycles

Detailed Description

Definition at line 45 of file routerReqReply.h.

Constructor & Destructor Documentation

RouterReqReply::RouterReqReply ( )

Definition at line 28 of file routerReqReply.cc.

References NetworkComponent::name, and ticking.

RouterReqReply::~RouterReqReply ( )

constructor

Definition at line 34 of file routerReqReply.cc.

Member Function Documentation

void RouterReqReply::do_input_buffering ( ) [private]

Definition at line 417 of file routerReqReply.cc.

References HeadFlit::addr, decoders, HeadFlit::dst_address, EMPTY, FULL, HEAD, IB, in_buffers, HeadFlit::inport, input_buffer_state, istat, HeadFlit::length, HeadFlit::msg_class, NetworkComponent::node_ip, Simulator::Now(), Router::output_connections, Router::ports, stat_ib_cycles, stat_rc_cycles, IrisStats::stat_router, ticking, Flit::type, Flit::vc, and Router::vcs.

Referenced by handle_tick_event().

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void RouterReqReply::do_switch_allocation ( ) [private]

Definition at line 635 of file routerReqReply.cc.

References _DBG, downstream_credits, in_buffers, input_buffer_state, istat, NetworkComponent::node_ip, Router::ports, IrisStats::stat_router, stat_swa_cycles, stat_swa_fail_msg_ratio, stat_swa_load, sw_alloc, SW_TRAVERSAL, SWA_REQUESTED, ticking, and Router::vcs.

Referenced by handle_tick_event().

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void RouterReqReply::do_switch_traversal ( ) [private]

Send a credit back and update buffer state for the downstream router buffer

Definition at line 518 of file routerReqReply.cc.

References _DBG, HeadFlit::addr, NetworkComponent::address, TailFlit::avg_network_latency, HeadFlit::avg_network_latency, VcaMsgAware::clear_winner(), cr_time, data, downstream_credits, HeadFlit::dst_address, EMPTY, FLIT_ID, FULL, HEAD, HeadFlit::hop_count, in_buffers, input_buffer_state, 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, request_switch_allocation(), Simulator::Schedule(), send_credit_back(), HeadFlit::src_address, stat_flit_out, stat_flits, IrisStats::stat_link, stat_packet_out, stat_packets, IrisStats::stat_router, stat_st_cycles, stat_total_packet_latency, SW_TRAVERSAL, TAIL, ticking, LinkArrivalData::type, Flit::type, LinkArrivalData::vc, Flit::vc, vca, VCA_COMPLETE, and Router::vcs.

Referenced by handle_tick_event().

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void RouterReqReply::do_virtual_channel_allocation ( ) [private]

Definition at line 698 of file routerReqReply.cc.

References _DBG, NetworkComponent::address, do_request_reply_network, VcaMsgAware::get_no_requestors(), input_buffer_state, istat, no_msg_classes, NetworkComponent::node_ip, ONE_FLIT_REQ, VcaMsgAware::pick_winners(), Router::ports, VcaMsgAware::request(), REQUEST_PKT, request_switch_allocation(), IrisStats::stat_router, stat_vca_cycles, stat_vca_fail_msg_ratio, stat_vca_load, ticking, vca, VCA_COMPLETE, VCA_REQUESTED, Router::vcs, and VcaMsgAware::winners.

Referenced by handle_tick_event().

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void RouterReqReply::dump_buffer_state ( )

Definition at line 204 of file routerReqReply.cc.

References EMPTY, input_buffer_state, INVALID, NetworkComponent::node_ip, Router::ports, and Router::vcs.

void RouterReqReply::handle_detect_deadlock_event ( IrisEvent * e ) [private]

Definition at line 168 of file routerReqReply.cc.

References _DBG_NOARG, cr_time, DETECT_DEADLOCK_EVENT, input_buffer_state, Simulator::Now(), Router::ports, NetworkComponent::process_event(), Simulator::Schedule(), IrisEvent::type, and Router::vcs.

Referenced by process_event().

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

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

Definition at line 311 of file routerReqReply.cc.

References _DBG, cr_time, CREDIT_ID, data, downstream_credits, IrisEvent::event_data, FLIT_ID, HEAD, in_buffers, input_buffer_state, Router::input_connections, istat, NetworkComponent::node_ip, Simulator::Now(), Router::output_connections, Router::ports, NetworkComponent::process_event(), LinkArrivalData::ptr, Simulator::Schedule(), IrisEvent::src_id, stat_ib_cycles, IrisStats::stat_router, TICK_EVENT, ticking, Flit::type, LinkArrivalData::type, IrisEvent::vc, LinkArrivalData::vc, and Router::vcs.

Referenced by process_event().

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

Event handle for the TICK_EVENT. Entry from DES kernel.

Input buffering Flits are pushed into the input buffer in the link arrival handler itself. To ensure the pipeline stages are executed in reverse pipe order IB is done here and all link_traversals have higher priority and get done before tick. Head/Body and Tail flits go thru the IB stage.

Request VCA at the end of IB

The router can be set to not tick and therefore speed up simulation if there are no messages to route. To be replaced by the start and stop clock functionality in the next release of the kernel. Under high load you also register the component to a clock so that it will be called every cycle and hence an event need not be explicitly generated.

Definition at line 793 of file routerReqReply.cc.

References Router::credits, do_input_buffering(), do_switch_allocation(), do_switch_traversal(), do_virtual_channel_allocation(), IB, in_buffers, input_buffer_state, Simulator::Now(), Router::ports, NetworkComponent::process_event(), Simulator::Schedule(), stat_buffer_occupancy, TICK_EVENT, ticking, IrisEvent::vc, VCA_REQUESTED, and Router::vcs.

Referenced by process_event().

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

destructor

Implements Router.

Definition at line 39 of file routerReqReply.cc.

References NetworkComponent::address, Router::buffer_size, cr_time, Router::credits, decoders, DETECT_DEADLOCK_EVENT, downstream_credits, EMPTY, in_buffers, VcaMsgAware::init(), input_buffer_state, Component::myId(), no_msg_classes, NetworkComponent::node_ip, Simulator::Now(), Router::ports, NetworkComponent::process_event(), request_op, Simulator::Schedule(), VcaMsgAware::set_no_msg_classes(), stat_buffer_occupancy, stat_flit_out, stat_flits, stat_ib_cycles, stat_packet_out, stat_packets, stat_rc_cycles, stat_st_cycles, stat_swa_cycles, stat_swa_fail_msg_ratio, stat_swa_load, stat_total_packet_latency, stat_vca_cycles, stat_vca_fail_msg_ratio, stat_vca_load, sw_alloc, vca, and Router::vcs.

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string RouterReqReply::print_stats ( void ) [virtual]

Implements Router.

Definition at line 217 of file routerReqReply.cc.

References last_flit_out_cycle, max_sim_time, NetworkComponent::name, NetworkComponent::node_ip, Router::output_connections, Router::ports, stat_buffer_occupancy, stat_flit_out, stat_flits, stat_ib_cycles, stat_packet_out, stat_packets, stat_print_level, stat_rc_cycles, stat_st_cycles, stat_swa_cycles, stat_swa_fail_msg_ratio, stat_swa_load, stat_total_packet_latency, stat_vca_cycles, stat_vca_fail_msg_ratio, and stat_vca_load.

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

Implements NetworkComponent.

Definition at line 147 of file routerReqReply.cc.

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

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void RouterReqReply::request_switch_allocation ( ) [private]

Definition at line 768 of file routerReqReply.cc.

References in_buffers, input_buffer_state, Router::ports, sw_alloc, SWA_REQUESTED, ticking, VCA_COMPLETE, and Router::vcs.

Referenced by do_switch_traversal(), and do_virtual_channel_allocation().

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void RouterReqReply::send_credit_back ( uint i )

Definition at line 877 of file routerReqReply.cc.

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

Referenced by do_switch_traversal().

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void RouterReqReply::set_edge_links ( )

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

For DOR the no of nodes in the network and the grid sizes are to be set and passed to RC.

Implements Router.

Definition at line 133 of file routerReqReply.cc.

References decoders.

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

Implements Router.

Definition at line 139 of file routerReqReply.cc.

References decoders.

void RouterReqReply::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.

Initialise the router for ports, vcs and credits. TODO buffer size not used right now. Just make sure its larger than credits.

Implements Router.

Definition at line 123 of file routerReqReply.cc.

References decoders.

string RouterReqReply::toString ( ) const [virtual]

Reimplemented from Router.

Definition at line 859 of file routerReqReply.cc.

References NetworkComponent::address, decoders, in_buffers, and NetworkComponent::node_ip.

Member Data Documentation

vector<uint> RouterReqReply::available_ports [private]

Definition at line 79 of file routerReqReply.h.

vector<uint> RouterReqReply::available_vcs [private]

Definition at line 80 of file routerReqReply.h.

vector< vector<uint> > RouterReqReply::cr_time [private]

Definition at line 81 of file routerReqReply.h.

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

vector<GenericRC> RouterReqReply::decoders [private]

Definition at line 74 of file routerReqReply.h.

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

vector< vector<uint> > RouterReqReply::downstream_credits

Definition at line 66 of file routerReqReply.h.

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

vector<GenericBuffer> RouterReqReply::in_buffers [private]

Definition at line 73 of file routerReqReply.h.

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

vector<InputBufferState> RouterReqReply::input_buffer_state [private]

Definition at line 75 of file routerReqReply.h.

Referenced by do_input_buffering(), do_switch_allocation(), do_switch_traversal(), do_virtual_channel_allocation(), dump_buffer_state(), handle_detect_deadlock_event(), handle_link_arrival_event(), handle_tick_event(), init(), request_switch_allocation(), and send_credit_back().

bool RouterReqReply::is_mc_router [private]

Definition at line 106 of file routerReqReply.h.

double RouterReqReply::last_flit_out_cycle [private]

Definition at line 98 of file routerReqReply.h.

Referenced by do_switch_traversal(), and print_stats().

vector< vector <uint> > RouterReqReply::request_op [private]

Definition at line 78 of file routerReqReply.h.

Referenced by init().

double RouterReqReply::stat_buffer_occupancy [private]

These are the statistics variables

Definition at line 94 of file routerReqReply.h.

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

vector< vector<uint> > RouterReqReply::stat_flit_out [private]

Definition at line 105 of file routerReqReply.h.

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

uint RouterReqReply::stat_flits [private]

Definition at line 96 of file routerReqReply.h.

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

ullint RouterReqReply::stat_ib_cycles [private]

Definition at line 107 of file routerReqReply.h.

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

vector< vector<uint> > RouterReqReply::stat_packet_out [private]

Definition at line 104 of file routerReqReply.h.

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

uint RouterReqReply::stat_packets [private]

Definition at line 95 of file routerReqReply.h.

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

ullint RouterReqReply::stat_rc_cycles [private]

Definition at line 108 of file routerReqReply.h.

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

ullint RouterReqReply::stat_sim_total_time [private]

Definition at line 103 of file routerReqReply.h.

ullint RouterReqReply::stat_st_cycles [private]

Definition at line 111 of file routerReqReply.h.

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

ullint RouterReqReply::stat_swa_cycles [private]

Definition at line 110 of file routerReqReply.h.

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

double RouterReqReply::stat_swa_fail_msg_ratio [private]

Definition at line 99 of file routerReqReply.h.

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

double RouterReqReply::stat_swa_load [private]

Definition at line 100 of file routerReqReply.h.

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

double RouterReqReply::stat_total_packet_latency [private]

Definition at line 97 of file routerReqReply.h.

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

ullint RouterReqReply::stat_vca_cycles [private]

Definition at line 109 of file routerReqReply.h.

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

double RouterReqReply::stat_vca_fail_msg_ratio [private]

Definition at line 101 of file routerReqReply.h.

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

double RouterReqReply::stat_vca_load [private]

Definition at line 102 of file routerReqReply.h.

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

vector< vector< uint> > RouterReqReply::sw_alloc [private]

Definition at line 77 of file routerReqReply.h.

Referenced by do_switch_allocation(), init(), and request_switch_allocation().

bool RouterReqReply::ticking [private]

Definition at line 83 of file routerReqReply.h.

Referenced by do_input_buffering(), do_switch_allocation(), do_switch_traversal(), do_virtual_channel_allocation(), handle_link_arrival_event(), handle_tick_event(), request_switch_allocation(), and RouterReqReply().

VcaMsgAware RouterReqReply::vca [private]

Definition at line 76 of file routerReqReply.h.

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

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


Public Member Functions
	RouterReqReply ()
	~RouterReqReply ()
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 ()
void	set_edge_links ()
void	dump_buffer_state ()
Public Attributes
vector< vector< uint > >	downstream_credits
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.
void	handle_detect_deadlock_event (IrisEvent *)
void	do_switch_traversal ()
void	do_switch_allocation ()
void	do_input_buffering ()
void	do_virtual_channel_allocation ()
void	request_switch_allocation ()
Private Attributes
vector< GenericBuffer >	in_buffers
vector< GenericRC >	decoders
vector< InputBufferState >	input_buffer_state
VcaMsgAware	vca
vector< vector< uint > >	sw_alloc
vector< vector< uint > >	request_op
vector< uint >	available_ports
vector< uint >	available_vcs
vector< vector< uint > >	cr_time
bool	ticking
double	stat_buffer_occupancy
uint	stat_packets
uint	stat_flits
double	stat_total_packet_latency
double	last_flit_out_cycle
double	stat_swa_fail_msg_ratio
double	stat_swa_load
double	stat_vca_fail_msg_ratio
double	stat_vca_load
ullint	stat_sim_total_time
vector< vector< uint > >	stat_packet_out
vector< vector< uint > >	stat_flit_out
bool	is_mc_router
ullint	stat_ib_cycles
ullint	stat_rc_cycles
ullint	stat_vca_cycles
ullint	stat_swa_cycles
ullint	stat_st_cycles