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{{Template:Site link|Network}}
{{Template:Site link|Network}}
{{See also|[[Network Admins]] | [[Network survival guide]]}}
{{Portal|Network}}
{{Portal|Network}}
{{Maintainer|Vidal WATAT}}
{{Portal|User}}


'''See also:''' [[Sophia:Hardware|Hardware description for Sophia]]


= IP networks in use =
= Overview of Ethernet network topology =


You have to use a public network range to run an experiment between several Grid5000 sites.  
[[File:SophiaNetwork.svg|600px]]


=== Public Networks ===
{{:Sophia:GeneratedNetwork}}


* computing : '''172.16.128.0/20'''
* virtual : '''10.164.0.0/14'''


=== Local Networks ===
= Old information (possibly outdated) =


* admin or ipmi : '''172.17.128.0.24'''
[[Image:Sophia_modified.jpg|center|thumb|Physical view of the compute network|600px]]
 
= Network =
 
[[Image:Sophia.jpg|center|thumb|Physical view of the compute network|600px]]


== Gigabit Ethernet ==
== Gigabit Ethernet ==




=== Suno Cluster (Dell R410) ===


=== Helios Cluster (Sun X4100) ===
All the nodes are connected (in a non blocking way) to the main Foundry FastIron Super X switch.
All the nodes are connected in gigabit ethernet to 2 Foudry EdgeIron switches (one Edgeiron 48GS and one EdgeIron24GS). The switches are interconnected using a 2x10Gbps stack (10GBps in each direction). The nodes are connected to the following switches:


* edgeiron48gs : helios01 to helios48 (48 nodes)
=== UVB Cluster  ===
* edgeiron24gs : helios49 to helios56 (8 nodes)


You can choose the switch for your reservation with OAR, using the switch name: <code class="command">oarsub -l nodes=15 -p "switch='XXX'"</code>
All the nodes are connected to two stacked Dell PowerConnect 6248 switches. The Powerconnect stack is connected to the Foundry FastIron Super X through a 10Gbps link.


OS used: <code>2.2.6.35</code>
=== Topology ===


=== Sol Cluster (Sun X2200 M2) ===
The main switch is a Foundry FastIron Super X. It has 2 dual 10GB modules, 4 modules with 24 gigabit ports, and 12 gigabit ports on the management module (so 60 gigabit ports are available). 4 slots are currently free.
 
All the nodes are connected (in a non blocking way) to the main Foundry FastIron Super X switch.  


47 nodes (from sol-1 to sol-47) have a second Ethernet interface connected to 2 Cisco 3750  stacked switches.
== High Performance networks ==
* IP addressing for eth1: sol-{1-47}-eth1, using the 172.16.128.0/24 network ( 172.16.128.154 can be used as a gateway)
The Cisco are interconnected to the main FastIron router with a single 1Gbps link. A separate VLAN is used.


{{Warning|text=The second network is no longer available on sol, as one of the two Cisco switch is dead }}
=== Infiniband 40G on uvb ===
 
uvb cluster nodes are all connected to 40G infiniband switches. Since these two clusters are shared with the Nef procution cluster at INRIA Sophia, we are using Infiniband partitions to isolate the nodes from nef when they are available on grid5000. The partition dedicated to grid5000 is '''0x8100'''. The ipoib interfaces on nodes are therefore named ib0.8100 instead of ib0.  
=== Suno Cluster (Dell R410) ===
To use the native openib driver of '''openmpi''', you must set: <code>btl_openib_pkey = 0x8100 </code>
 
All the nodes are connected (in a non blocking way) to the main Foundry FastIron Super X switch.
 
=== Topology ===
 
The main switch is a Foundry FastIron Super X. It has 2 dual 10GB modules, 4 modules with 24 gigabit ports, and 12 gigabit ports on the management module (so 60 gigabit ports are available). 4 slots are currently free.


The EdgeIron stack (helios) is connected to the FastIron with 2 aggregated 10GB links.
==== Nodes ====


Network usage is available through cricket at:
*<code class="host">uvb-1</code> to <code class="host">uvb-44</code> have one QDR Infiniband card.
https://helpdesk2.grid5000.fr/cricket/grapher.cgi?target=%2Fsophia%2Fgw-sophia.sophia.grid5000.fr
* Card Model : Mellanox Technologies MT26428 [ConnectX IB QDR, PCIe 2.0 5GT/s].
* Driver : <code class="dir">mlx4_ib</code>
* OAR property : ib_rate=40
* IP over IB addressing :
** <code class="host">uvb-[1..44]-ib0</code>.sophia.grid5000.fr ( 172.18.132.[1..44] )


== Myrinet ==
==== Switch ====
== Myri 2G ==
All helios nodes are connected to the 128 ports Myrinet 2000 switch.


You can submit jobs with OAR on Myrinet nodes using the  'myrinet' property: <code class="command">oarsub -l nodes=10 -p "myri2g='YES'"</code>.
* three Mellanox IS50xx QDR Infiniband Switchs
* Topology available here : https://wiki.inria.fr/ClustersSophia/Network (uvb are nef084-nef140 on the nef production cluster)


MX driver is enabled by default on these nodes, IP emulation also.
==== Interconnection ====
* IP over MX addressing: <code class='host'>helios-{1-56}-myri0 </code> (192.168.7.{73-128})
* Myrinet network usage is available through cricket at: https://helpdesk2.grid5000.fr/cricket/


== Myri 10G ==
Infiniband network is physically isolated from Ethernet networks. Therefore, Ethernet network emulated over Infiniband is isolated as well. There isn't any interconnexion, neither at the data link layer nor at the network layer.
A subset of the sol cluster (sol-[29-50]) is connected to a 10G Myrinet switch.


==  Architecture ==
==  Architecture ==
[[Image:Sophia-cluster.png|center|thumb|view of the Baie|600px]]
[[Image:Sophia-cluster_modified.png|center|thumb|view of the Baie|600px]]

Latest revision as of 13:49, 12 March 2024

Network: Global | Grenoble | Lille | Luxembourg | Lyon | Nancy | Nantes | Rennes | Sophia | Strasbourg | Toulouse

See also: Hardware description for Sophia

Overview of Ethernet network topology

SophiaNetwork.svg


Network devices models

  • gw: Foundry
  • swx1nef: Juniper EX2500-24F-FB
  • swy1nef: Dell PowerConnect 6248

More details (including address ranges) are available from the Grid5000:Network page.


Old information (possibly outdated)

Physical view of the compute network

Gigabit Ethernet

Suno Cluster (Dell R410)

All the nodes are connected (in a non blocking way) to the main Foundry FastIron Super X switch.

UVB Cluster

All the nodes are connected to two stacked Dell PowerConnect 6248 switches. The Powerconnect stack is connected to the Foundry FastIron Super X through a 10Gbps link.

Topology

The main switch is a Foundry FastIron Super X. It has 2 dual 10GB modules, 4 modules with 24 gigabit ports, and 12 gigabit ports on the management module (so 60 gigabit ports are available). 4 slots are currently free.

High Performance networks

Infiniband 40G on uvb

uvb cluster nodes are all connected to 40G infiniband switches. Since these two clusters are shared with the Nef procution cluster at INRIA Sophia, we are using Infiniband partitions to isolate the nodes from nef when they are available on grid5000. The partition dedicated to grid5000 is 0x8100. The ipoib interfaces on nodes are therefore named ib0.8100 instead of ib0. To use the native openib driver of openmpi, you must set: btl_openib_pkey = 0x8100

Nodes

  • uvb-1 to uvb-44 have one QDR Infiniband card.
  • Card Model : Mellanox Technologies MT26428 [ConnectX IB QDR, PCIe 2.0 5GT/s].
  • Driver : mlx4_ib
  • OAR property : ib_rate=40
  • IP over IB addressing :
    • uvb-[1..44]-ib0.sophia.grid5000.fr ( 172.18.132.[1..44] )

Switch

Interconnection

Infiniband network is physically isolated from Ethernet networks. Therefore, Ethernet network emulated over Infiniband is isolated as well. There isn't any interconnexion, neither at the data link layer nor at the network layer.

Architecture

view of the Baie
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