Difference between revisions of "Nancy:Network"

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{{Template:Site link|Network}}
 
{{Template:Site link|Network}}
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{{Portal|Network}}
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{{Portal|User}}
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= Overview of Ethernet network topology =
  
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[[File:NancyNetwork.png|1200px]]
  
= Experiment network =
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{{:Nancy:GeneratedNetwork}}
[[Image:Nancy-network.png]]
 
  
= Management network =
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= HPC Networks =
No network diagram available.
 
  
= Grid5000 interconnect =
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Several HPC Networks are available.
  
== Topology ==
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== 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]]
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*<code class="host">grele-1</code> to <code class="host">grele-14</code> have one 100GB Omni-Path card.
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*<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.
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* 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.
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== Omni-Path 100G on grvingt nodes  ==
  
[[Image:nancy_g5k_linking.png|center|Nancy's Grid'5000 linking]]
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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''.
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Topology, generated from <code>opareports -o topology</code>:
  
== Addressing ==
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[[File:Topology-grvingt.png|400px]]
Not yet defined
 
  
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More information about using Omni-Path with MPI is available from the [[Run_MPI_On_Grid%275000]] tutorial.
  
== Naming ==
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=== Switch ===
There is no specific naming for the Grid'5000 interconnect, because the experiment network names are used on the entire grid.
 
  
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* Infiniband Switch 4X DDR
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* Model based on [http://www.mellanox.com/content/pages.php?pg=products_dyn&product_family=16&menu_section=33 Infiniscale_III]
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* 1 commutation card Flextronics F-X43M204
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* 12 line cards 4X 12 ports DDR Flextronics F-X43M203
  
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=== Interconnection ===
  
= Loria interconnect =
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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.
  
== Topology ==
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== Infiniband 56G on graphite/graoully/grimoire/grisou nodes  ==
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]]
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*<code class="host">graoully-[1-16]</code> have one 56GB Infiniband card.
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*<code class="host">grimoire-[1-8]</code> have one 56GB Infiniband card.
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*<code class="host">graphite-[1-4]</code> have one 56GB Infiniband card.
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*<code class="host">grisou-[50-51]</code> have one 56GB Infiniband card.
  
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.
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* 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] ).
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* Driver : <code class="dir">mlx4_core</code>
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* OAR property : ib_rate='56'
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* IP over IB addressing : <code class="host">graoully-[1-16]-ib0</code>.nancy.grid5000.fr ( 172.18.70.[1-16] )
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* IP over IB addressing : <code class="host">grimoire-[1-8]-ib0</code>.nancy.grid5000.fr ( 172.18.71.[1-8] )
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* IP over IB addressing : <code class="host">graphite-[1-4]-ib0</code>.nancy.grid5000.fr ( 172.16.68.[9-12] )
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* IP over IB addressing : <code class="host">grisou-[50-51]-ib0</code>.nancy.grid5000.fr ( 172.16.72.[50-51] )
  
[[Image:nancy_loria_linking.png|center|Nancy's Loria linking]]
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=== Switch ===
  
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* 36-port Mellanox InfiniBand SX6036
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* [http://www.mellanox.com/page/products_dyn?product_family=132 Documentation]
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* 36 FDR (56Gb/s) ports in a 1U switch
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* 4.032Tb/s switching capacity
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* FDR/FDR10 support for Forward Error Correction (FEC)
  
== Addressing ==
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=== Interconnection ===
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">152.81.45.[101-1??]</code> are dedicated to service node first experiment interface
 
* <code class="host">152.81.44.[201-2??]</code> are dedicated to service node management interface
 
  
{{Note|text=Service node first experiment interfaces possess 2 IP addresses:
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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.
* <code>eth0</code> for cluster's intraconnect: <code>172.28.53.[1-X]</code>
 
* <code>eth0:0</code> for Loria's interconnect: <code>152.81.45.[101-1XX]</code>}}
 
 
 
== Naming ==
 
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
 
:'''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.
 
* <code class="host">fgrillade[1-??].grid5000.loria.fr</code> are dedicated to service node management interface
 

Latest revision as of 08:39, 26 March 2019

Overview of Ethernet network topology

NancyNetwork.png


Network devices models

  • gw-nancy: Cisco Nexus 9508
  • sgraoullyib: Infiniband
  • sgrcinq: Cisco WS-C2960X-48TD-L
  • sgrele-opf: Omni-Path
  • sgrisou1: Dell S3048
  • sgros1: Dell Z9264F-ON
  • sgros2: Dell Z9264F-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.

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.