Intel Ethernet 10 Gigabit LAMMPS Performance Study

TEST ENVIRONMENT
All tests were performed by the Research Computing and Cyberinfrastructure unit
of Information Technology services at Penn State.
The application software under test was LAMMPS 15 Jan 2010. (The results are
shown in Figure 1.)
The test environment consisted of the following:
Servers
• Dell PowerEdge* R710 Server
• Two Intel® Xeon® processors X5560
• 48 GB RAM
Network Adapters
• 10 Gbps iWARP-enabled NetEffect Ethernet Server Cluster Adapter from Intel
• Mellanox Connect-X MT26428 QDR InfiniBand* Host Channel Adapter
System Software
• Red Hat Enterprise Linux* 5.6
• OpenFabrics Enterprise Distribution* 1.5.2
• OpenMPI 1.4.2
Switches
• iWARP: Arista 7148SX* with Jumbo Frames enabled
• InfiniBand: Mellanox MTS3600*
For more information on Intel® iWARP, please visit:
www.intel.com/go/ethernet
Conclusion
By providing realistic application perfor-
mance instead of micro-benchmark test
results, this report illustrates the danger
of relying solely on synthetic benchmark-
ing when evaluating networking options.
HPC workloads behave much differ-
ently than, for example, a half round-trip
latency test: using multiple connections in
a switched environment with non-uniform
I/O patterns.
The real-world application results shown
in this report show the viability of iWARP
Ethernet as an alternative to discrete, pro-
prietary fabrics for HPC workloads. The
fundamental advantages of a converged
Ethernet network combined with easier
IP-based management and native routing
capability make iWARP a compelling solu-
tion for HPC use cases.
Intel® Ethernet 10 Gigabit iWARP LAMMPS Performance Study
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1
1http://www.gnu.org/copyleft/gpl.html.
2http://www.sandia.gov/.
3http://www-unix.mcs.anl.gov/mpi.
4http://lammps.sandia.gov/FAQ.html.
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