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=== Common Benchmarks ===
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=== Linpack ===
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For HPC system a reference benchmark is the Linpack. You can download the benchmark
from the links below
[[http://netlib.org/benchmark/hpl/ Linpack Webpage]] (including patch for QS22)
For QS22 you will also need (also described in readme)
- ATLAS 3.8.1 (warning: long build, takes approx. 12 hours)
- OpenMPI 1.3.3 (custom version for infiniband)
from the links below
[[http://netlib.org/benchmark/hpl/ Linpack Webpage]] (including patch for QS22)
For QS22 you will also need (also described in readme)
- ATLAS 3.8.1 (warning: long build, takes approx. 12 hours)
- OpenMPI 1.3.3 (custom version for infiniband)
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[[http://netlib.org/benchmark/hpl/IBM_README.txt Readme to QS22-optimized linpack]]
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=== Linpack ==
[[http://netlib.org/benchmark/hpl/IBM_README.txt] Readme to QS22-optimized linpack]
[[http://netlib.org/benchmark/hpl/IBM_README.txt] Readme to QS22-optimized linpack]
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You will have to start the so-called subnet manager **opensm** on one of the machines by typing
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- MVAPICH 1.1.0
==== InfiniBand related problems ====
Q: I cannot reach the nodes by tcp/ip. The node fails to respond on a icmp ping.
For some reason, the InfiniBand network switches have no //logic// of detecting connected network adapters. In contrast to ethernet, the //lookup// similar to an ARP Cache is not provided by the switch. Thus, a host connected to the switch needs to run this logic part for tcp/ip connections.
You will have to start the so-called subnet manager **opensm* on one of the machines by typing
%%(language-ref)
service opensmd start
%%
Afterwards you should be able to //ping// a node.
typical results so far should be: ~1500MiB/s on rdma transfers
Advanced tests conducting on the mpi are also available
- OSU tests (from Ohio State University, a benchmark suite provided by mvapich)
- IMB (Intel MPI Benchmark)
==== InfiniBand related problems ====
Q: I cannot reach the nodes by tcp/ip. The node fails to respond on a icmp ping.
For some reason, the InfiniBand network switches have no //logic// of detecting connected network adapters. In contrast to ethernet, the //lookup// similar to an ARP Cache is not provided by the switch. Thus, a host connected to the switch needs to run this logic part for tcp/ip connections.
You will have to start the so-called subnet manager **opensm* on one of the machines by typing
%%(language-ref)
service opensmd start
%%
Afterwards you should be able to //ping// a node.
typical results so far should be: ~1500MiB/s on rdma transfers
Advanced tests conducting on the mpi are also available
- OSU tests (from Ohio State University, a benchmark suite provided by mvapich)
- IMB (Intel MPI Benchmark)
Deletions:
Advanced tests conducting on the mpi
