Changes for page Compiling and Running MPI Programs

Last modified by valad on 2024/05/28 10:16

From 8.1 to 7.1

From version 9.1

edited by valad
on 2024/05/28 10:16

Change comment: There is no comment for this version

To version 8.1

edited by valad
on 2024/05/28 10:15

Change comment: There is no comment for this version

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@@ -16,7 +16,7 @@
  == Infiniband ==
--The '**itp**'-, '**itp-big**'-, '**dfg-xeon**'-, '**iboga**'-, '**dreama**'- and '**barcelona**'-nodes have **Infiniband** Network. It is used by default when using our openMPI installation. Infiniband provides high bandwith with low latency. It can transport 20 GB/s with latency of 4 µs. In comparison, normal Gigabit Ethernet provides 1 GB/s with at least 30 µs latency. Latency is the time a data packet needs to travel from the source to its target. This is the main drawback when using Gigibit Ethernet for MPI communication.
++The 'itp'-, 'itp-big'-, 'dfg-xeon'-, 'iboga'-, 'dreama'- and 'barcelona'-nodes have Infiniband Network. It is used by default when using our openMPI installation. Infiniband provides high bandwith with low latency. It can transport 20 GB/s with latency of 4 µs. In comparison, normal Gigabit Ethernet provides 1 GB/s with at least 30 µs latency. Latency is the time a data packet needs to travel from the source to its target. This is the main drawback when using Gigibit Ethernet for MPI communication.
  = Mellanox HPCX =