From 003c08fa90f8b3eb7fbbbc96e0caa5f46bf58196 Mon Sep 17 00:00:00 2001 From: Tushar Krishna Date: Thu, 6 Oct 2016 14:35:18 -0400 Subject: config: make internal links in network topology unidirectional. This patch makes the internal links within the network topology unidirectional, thus allowing any deadlock-free routing algorithms to be specified from the topology itself using weights. This patch also renames Mesh.py and MeshDirCorners.py to Mesh_XY.py and MeshDirCorners_XY.py (Mesh with XY routing). It also adds a Mesh_westfirst.py and CrossbarGarnet.py topologies. --- .../network/garnet/fixed-pipeline/GarnetNetwork_d.cc | 19 ++++++++----------- .../network/garnet/fixed-pipeline/GarnetNetwork_d.hh | 7 ++----- 2 files changed, 10 insertions(+), 16 deletions(-) (limited to 'src/mem/ruby/network/garnet/fixed-pipeline') diff --git a/src/mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.cc b/src/mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.cc index ce919335e..1e36a4cf0 100644 --- a/src/mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.cc +++ b/src/mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.cc @@ -127,15 +127,14 @@ GarnetNetwork_d::~GarnetNetwork_d() */ void -GarnetNetwork_d::makeInLink(NodeID src, SwitchID dest, BasicLink* link, - LinkDirection direction, +GarnetNetwork_d::makeExtInLink(NodeID src, SwitchID dest, BasicLink* link, const NetDest& routing_table_entry) { assert(src < m_nodes); GarnetExtLink_d* garnet_link = safe_cast(link); - NetworkLink_d* net_link = garnet_link->m_network_links[direction]; - CreditLink_d* credit_link = garnet_link->m_credit_links[direction]; + NetworkLink_d* net_link = garnet_link->m_network_links[0]; + CreditLink_d* credit_link = garnet_link->m_credit_links[0]; m_links.push_back(net_link); m_creditlinks.push_back(credit_link); @@ -151,8 +150,7 @@ GarnetNetwork_d::makeInLink(NodeID src, SwitchID dest, BasicLink* link, */ void -GarnetNetwork_d::makeOutLink(SwitchID src, NodeID dest, BasicLink* link, - LinkDirection direction, +GarnetNetwork_d::makeExtOutLink(SwitchID src, NodeID dest, BasicLink* link, const NetDest& routing_table_entry) { assert(dest < m_nodes); @@ -160,8 +158,8 @@ GarnetNetwork_d::makeOutLink(SwitchID src, NodeID dest, BasicLink* link, assert(m_routers[src] != NULL); GarnetExtLink_d* garnet_link = safe_cast(link); - NetworkLink_d* net_link = garnet_link->m_network_links[direction]; - CreditLink_d* credit_link = garnet_link->m_credit_links[direction]; + NetworkLink_d* net_link = garnet_link->m_network_links[1]; + CreditLink_d* credit_link = garnet_link->m_credit_links[1]; m_links.push_back(net_link); m_creditlinks.push_back(credit_link); @@ -177,12 +175,11 @@ GarnetNetwork_d::makeOutLink(SwitchID src, NodeID dest, BasicLink* link, void GarnetNetwork_d::makeInternalLink(SwitchID src, SwitchID dest, BasicLink* link, - LinkDirection direction, const NetDest& routing_table_entry) { GarnetIntLink_d* garnet_link = safe_cast(link); - NetworkLink_d* net_link = garnet_link->m_network_links[direction]; - CreditLink_d* credit_link = garnet_link->m_credit_links[direction]; + NetworkLink_d* net_link = garnet_link->m_network_links[0]; + CreditLink_d* credit_link = garnet_link->m_credit_links[0]; m_links.push_back(net_link); m_creditlinks.push_back(credit_link); diff --git a/src/mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.hh b/src/mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.hh index 99ecc02da..a11f3ea50 100644 --- a/src/mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.hh +++ b/src/mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.hh @@ -69,14 +69,11 @@ class GarnetNetwork_d : public BaseGarnetNetwork } // Methods used by Topology to setup the network - void makeOutLink(SwitchID src, NodeID dest, BasicLink* link, - LinkDirection direction, + void makeExtOutLink(SwitchID src, NodeID dest, BasicLink* link, const NetDest& routing_table_entry); - void makeInLink(NodeID src, SwitchID dest, BasicLink* link, - LinkDirection direction, + void makeExtInLink(NodeID src, SwitchID dest, BasicLink* link, const NetDest& routing_table_entry); void makeInternalLink(SwitchID src, SwitchID dest, BasicLink* link, - LinkDirection direction, const NetDest& routing_table_entry); //! Function for performing a functional write. The return value -- cgit v1.2.3