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Commit 13aaf1c0 authored by Jan Siwiec's avatar Jan Siwiec
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Update network.md

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4 merge requests!368Update prace.md to document the change from qprace to qprod as the default...,!367Update prace.md to document the change from qprace to qprod as the default...,!366Update prace.md to document the change from qprace to qprod as the default...,!323extended-acls-storage-section
...@@ -6,7 +6,7 @@ All of the compute and login nodes of Anselm are interconnected through an [Infi ...@@ -6,7 +6,7 @@ All of the compute and login nodes of Anselm are interconnected through an [Infi
All of the compute and login nodes of Anselm are interconnected through a high-bandwidth, low-latency [InfiniBand][a] QDR network (IB 4 x QDR, 40 Gbps). The network topology is a fully non-blocking fat-tree. All of the compute and login nodes of Anselm are interconnected through a high-bandwidth, low-latency [InfiniBand][a] QDR network (IB 4 x QDR, 40 Gbps). The network topology is a fully non-blocking fat-tree.
The compute nodes may be accessed via the InfiniBand network using ib0 network interface, in address range 10.2.1.1-209. The MPI may be used to establish native InfiniBand connection among the nodes. The compute nodes may be accessed via the InfiniBand network using the ib0 network interface, in address range 10.2.1.1-209. The MPI may be used to establish native InfiniBand connection among the nodes.
!!! note !!! note
The network provides **2170 MB/s** transfer rates via the TCP connection (single stream) and up to **3600 MB/s** via the native InfiniBand protocol. The network provides **2170 MB/s** transfer rates via the TCP connection (single stream) and up to **3600 MB/s** via the native InfiniBand protocol.
...@@ -15,7 +15,7 @@ The Fat tree topology ensures that peak transfer rates are achieved between any ...@@ -15,7 +15,7 @@ The Fat tree topology ensures that peak transfer rates are achieved between any
## Ethernet Network ## Ethernet Network
The compute nodes may be accessed via the regular Gigabit Ethernet network interface eth0, in address range 10.1.1.1-209, or by using aliases cn1-cn209. The network provides **114 MB/s** transfer rates via the TCP connection. The compute nodes may be accessed via the regular Gigabit Ethernet network interface eth0, in the address range 10.1.1.1-209, or by using aliases cn1-cn209. The network provides **114 MB/s** transfer rates via the TCP connection.
## Example ## Example
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