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{{Template:Site link|Network}}
{{Template:Site link|Network}}
{{Portal|Network}}
{{Portal|User}}
= Overview of Ethernet network topology =


[[File:NancyNetwork.png|1200px]]


= Experiment network =
{{:Nancy:GeneratedNetwork}}
[[Image:Nancy-network.png]]


= Management network =
= HPC Networks =
No network diagram available.


= Grid5000 interconnect =
Several HPC Networks are available.


== Topology ==
== Omni-Path 100G on grele and grimani nodes  ==
Connection to others Grid'5000 sites uses the national research network, called [http://www.renater.fr Renater]. This network uses the 10Gbit Ethernet technology.


[[Image:nancy_g5k_interconnect.png|center|Nancy Grid'5000 interconnect]]
*<code class="host">grele-1</code> to <code class="host">grele-14</code> have one 100GB Omni-Path card.
*<code class="host">grimani-1</code> to <code class="host">grimani-6</code> have one 100GB Omni-Path card.


The local Renater site is managed by the [http://www.ciril.fr CIRIL], which is located at 2 km from the Loria, which hosts Nancy's Grid'5000 cluster. This distance implies the use of a fiber medium with the 10GBASE-LR technology. The 48-port experiment network switch, which is equipped with a 10GbE LR transceiver, takes in charge the Grid'5000 interconnect.
* Card Model: Intel Omni-Path Host Fabric adaptateur series 100 1 Port PCIe x8


Fiber linking to the CIRIL is not direct. Firstly, fiber goes down to the Faculté des Sciences. After that, it goes to Loria. Finally, it arrives on the cluster.
== Omni-Path 100G on grvingt nodes  ==


[[Image:nancy_g5k_linking.png|center|Nancy's Grid'5000 linking]]
There's another, separate Omni-Path network connecting the 64 grvingt nodes and some servers.


'''Note''': All the used fiber cables are dedicated to our Grid'5000 interconnect. When it is said ''trunk'' on the above figure it means a ''more rigid garter''.
Topology, generated from <code>opareports -o topology</code>:


== Addressing ==
[[File:Topology-grvingt.png|400px]]
Not yet defined


More information about using Omni-Path with MPI is available from the [[Run_MPI_On_Grid%275000]] tutorial.


== Naming ==
== Infiniband 20G on griffon nodes  ==
There is no specific naming for the Grid'5000 interconnect, because the experiment network names are used on the entire grid.
''Infiniband has been removed from these nodes''


== Infiniband 20G on graphene nodes  ==


*<code class="host">graphene-1</code> to <code class="host">graphene-144</code> have one 20GB Infiniband card.


= Loria interconnect =
* Card Model : Mellanox Technologies MT26418 [ConnectX IB DDR, PCIe 2.0 5GT/s] ( [http://www.mellanox.com/content/pages.php?pg=products_dyn&product_family=4&menu_section=41 ConnectX] ).
* Driver : <code class="dir">mlx4_ib</code>
* OAR property : ib_rate=20
* IP over IB addressing : <code class="host">graphene-[1..144]-ib0</code>.nancy.grid5000.fr ( 172.18.64.[1..144] )


== Topology ==
=== Switch ===
The Loria laboratory possess a 1Gbit Ethernet network. Service nodes of the cluster are connected to this network. So the 24-port experiment switch, which connects service nodes, makes the uplink to this network.


[[Image:nancy_loria_interconnect.png|center|Nancy's Loria interconnect]]
* Infiniband Switch 4X DDR
* Model based on [http://www.mellanox.com/content/pages.php?pg=products_dyn&product_family=16&menu_section=33 Infiniscale_III]
* 1 commutation card Flextronics F-X43M204
* 12 line cards 4X 12 ports DDR Flextronics F-X43M203


Nancy's Grid'5000 cluster is hosted in Loria building. So cabling distance is short. 1000BASE-T technology is used with an RJ-45 CAT6 cable. The 24-port experiment switch is directly linked to the Loria router.
=== Interconnection ===


[[Image:nancy_loria_linking.png|center|Nancy's Loria linking]]
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 L2 or L3 layers.


== Infiniband 56G on graphite/graoully/grimoire/grisou nodes  ==


== Addressing ==
*<code class="host">graoully-[1-16]</code> have one 56GB Infiniband card.
Loria uses a public IP address range for its materials : <code class="host">152.81.0.0/16</code>. Within this range, the subnet <code class="host">152.81.45.0/24</code> is dedicated to Grid'5000 cluster:
*<code class="host">grimoire-[1-8]</code> have one 56GB Infiniband card.
* <code class="host">152.81.45.[101-1??]</code> are dedicated to service node first experiment interface
*<code class="host">graphite-[1-4]</code> have one 56GB Infiniband card.
* <code class="host">152.81.44.[201-2??]</code> are dedicated to service node management interface
*<code class="host">grisou-[50-51]</code> have one 56GB Infiniband card.


{{Note|text=Service node first experiment interfaces possess 2 IP addresses:
* Card Model : Mellanox Technologies MT27500 Family [ConnectX-3] ( [http://www.mellanox.com/related-docs/user_manuals/ConnectX-3_VPI_Single_and_Dual_QSFP_Port_Adapter_Card_User_Manual.pdf ConnectX-3] ).
* <code>eth0</code> for cluster's intraconnect: <code>172.28.53.[1-X]</code>
* Driver : <code class="dir">mlx4_core</code>
* <code>eth0:0</code> for Loria's interconnect: <code>152.81.45.[101-1XX]</code>}}
* OAR property : ib_rate='56'
* IP over IB addressing : <code class="host">graoully-[1-16]-ib0</code>.nancy.grid5000.fr ( 172.18.70.[1-16] )
* IP over IB addressing : <code class="host">grimoire-[1-8]-ib0</code>.nancy.grid5000.fr ( 172.18.71.[1-8] )
* IP over IB addressing : <code class="host">graphite-[1-4]-ib0</code>.nancy.grid5000.fr ( 172.16.68.[9-12] )
* IP over IB addressing : <code class="host">grisou-[50-51]-ib0</code>.nancy.grid5000.fr ( 172.16.72.[50-51] )


== Naming ==
=== Switch ===
Service node interfaces connected to Loria network are also named on it. These names are gathered into <code class="domain">grid5000.loria.fr</code> subdomain :
 
* <code class="host">fgrillon[1-??].grid5000.loria.fr</code> are dedicated to service node second experiment interface
* 36-port Mellanox InfiniBand SX6036
:'''Note:''' <code class="host">fgrillon.grid5000.loria.fr</code>, <code class="host">grillon.grid5000.loria.fr</code> and <code class="host">acces.nancy.grid5000.fr</code> are also used for default service node.
* [http://www.mellanox.com/page/products_dyn?product_family=132 Documentation]
* <code class="host">fgrillade[1-??].grid5000.loria.fr</code> are dedicated to service node management interface
* 36 FDR (56Gb/s) ports in a 1U switch
* 4.032Tb/s switching capacity
* FDR/FDR10 support for Forward Error Correction (FEC)
 
=== 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 L2 or L3 layers.

Revision as of 23:18, 5 July 2018

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

Overview of Ethernet network topology

NancyNetwork.png


Network devices models

  • gw: Cisco Nexus 9508
  • sgraoullyib: Infiniband
  • sgrappe: Dell S5224F-ON
  • sgrele-opf: Omni-Path
  • sgros1: Dell Z9264F-ON
  • sgros2: Dell Z9264F-ON
  • sgruss: Dell S5224F-ON
  • sgrvingt: Dell S4048

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

HPC Networks

Several HPC Networks are available.

Omni-Path 100G on grele and grimani nodes

  • grele-1 to grele-14 have one 100GB Omni-Path card.
  • grimani-1 to grimani-6 have one 100GB Omni-Path card.
  • Card Model: Intel Omni-Path Host Fabric adaptateur series 100 1 Port PCIe x8

Omni-Path 100G on grvingt nodes

There's another, separate Omni-Path network connecting the 64 grvingt nodes and some servers.

Topology, generated from opareports -o topology:

Topology-grvingt.png

More information about using Omni-Path with MPI is available from the Run_MPI_On_Grid'5000 tutorial.

Infiniband 20G on griffon nodes

Infiniband has been removed from these nodes

Infiniband 20G on graphene nodes

  • graphene-1 to graphene-144 have one 20GB Infiniband card.
  • Card Model : Mellanox Technologies MT26418 [ConnectX IB DDR, PCIe 2.0 5GT/s] ( ConnectX ).
  • Driver : mlx4_ib
  • OAR property : ib_rate=20
  • IP over IB addressing : graphene-[1..144]-ib0.nancy.grid5000.fr ( 172.18.64.[1..144] )

Switch

  • Infiniband Switch 4X DDR
  • Model based on Infiniscale_III
  • 1 commutation card Flextronics F-X43M204
  • 12 line cards 4X 12 ports DDR Flextronics F-X43M203

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 L2 or L3 layers.

Infiniband 56G on graphite/graoully/grimoire/grisou nodes

  • graoully-[1-16] have one 56GB Infiniband card.
  • grimoire-[1-8] have one 56GB Infiniband card.
  • graphite-[1-4] have one 56GB Infiniband card.
  • grisou-[50-51] have one 56GB Infiniband card.
  • Card Model : Mellanox Technologies MT27500 Family [ConnectX-3] ( ConnectX-3 ).
  • Driver : mlx4_core
  • OAR property : ib_rate='56'
  • IP over IB addressing : graoully-[1-16]-ib0.nancy.grid5000.fr ( 172.18.70.[1-16] )
  • IP over IB addressing : grimoire-[1-8]-ib0.nancy.grid5000.fr ( 172.18.71.[1-8] )
  • IP over IB addressing : graphite-[1-4]-ib0.nancy.grid5000.fr ( 172.16.68.[9-12] )
  • IP over IB addressing : grisou-[50-51]-ib0.nancy.grid5000.fr ( 172.16.72.[50-51] )

Switch

  • 36-port Mellanox InfiniBand SX6036
  • Documentation
  • 36 FDR (56Gb/s) ports in a 1U switch
  • 4.032Tb/s switching capacity
  • FDR/FDR10 support for Forward Error Correction (FEC)

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 L2 or L3 layers.

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