com.xilinx.rapidwright.eco

Class FanOutOptimization

Object

com.xilinx.rapidwright.eco.FanOutOptimization

public class FanOutOptimization
extends Object

Performs a fan out optimization of a high fan out net on a fully placed and routed design.

Field Summary

Fields

Modifier and Type	Field and Description
static Map<String,String>	ffTypeRstName
static String	UNIQUE_SUFFIX

Constructor Summary

Constructors

Constructor and Description
FanOutOptimization()

Method Summary

Modifier and Type	Method and Description
static void	cutFanOutOfRoutedNet(Design design, Net net, int splitByCount) Given a fully placed and routed design and a net driven by a flip flop, this will replicate the flop by splitByCount times and divide the set of sinks on the net into neighborhood clusters to be re-routed.
static void	cutFanOutOfRoutedNet(Design design, Net net, int splitByCount, boolean onlyUseEmptySites) Given a fully placed and routed design and a net driven by a flip flop, this will replicate the flop by splitByCount times and divide the set of sinks on the net into neighborhood clusters to be re-routed.
static void	main(String[] args)

Methods inherited from class Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

UNIQUE_SUFFIX

public static final String UNIQUE_SUFFIX

See Also:

Constant Field Values

ffTypeRstName

public static Map<String,String> ffTypeRstName

Constructor Detail

FanOutOptimization

public FanOutOptimization()

Method Detail

cutFanOutOfRoutedNet

public static void cutFanOutOfRoutedNet(Design design,
                                        Net net,
                                        int splitByCount)

Given a fully placed and routed design and a net driven by a flip flop, this will replicate the flop by splitByCount times and divide the set of sinks on the net into neighborhood clusters to be re-routed.

Parameters:

design - The design

net - The high fan out net

splitByCount - Desired number to split the fan out.

cutFanOutOfRoutedNet

public static void cutFanOutOfRoutedNet(Design design,
                                        Net net,
                                        int splitByCount,
                                        boolean onlyUseEmptySites)

Given a fully placed and routed design and a net driven by a flip flop, this will replicate the flop by splitByCount times and divide the set of sinks on the net into neighborhood clusters to be re-routed.

Parameters:

design - The design

net - The high fan out net

splitByCount - Desired number to split the fan out.

onlyUseEmptySites - Flag to indicate that any replicated cells only be placed in empty sites. Default is true and leads to more routable scenarios when combined with `route_design -preserve`.

main

public static void main(String[] args)