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Solution Overview

Cisco HPC Network Solutions for

Microsoft Windows Compute Cluster Server 2003

Cisco

InfiniBand and Ethernet Network Fabric Solutions for Microsoft Windows Compute Cluster Server (CCS) 2003

CHALLENGE

High-performance computing (HPC) clusters of industry-standard servers have emerged in recent years as the preferred method for

implementing a supercomputer for computationally intensive tasks. Enterprises, research institutions, and governments use HPC

clusters for a variety of purposes ranging from financial risk analysis to computational fluid dynamics, to weather and climate modeling,

to analyzing underground oil and gas reservoirs. The applications and uses of HPC clusters are quite varied. The requirements of

the underlying network are also quite varied. Customers are faced with a number of challenges. Among these are:

●

What network interconnect offers the best performance or best value for my Microsoft Windows CCS application?

●

What network solutions, products, and topologies are validated for Microsoft Windows CCS?

SOLUTION

Cisco Systems

uniquely manufactures and supports multiple interconnects for HPC clusters, providing enterprises with a superior level

of flexibility in terms of price, latency, and performance. A Gigabit Ethernet interconnect using a Cisco Catalyst

switch is quite suitable

for loosely coupled, highly parallelized and parametric applications (Figure 1). Tightly coupled applications with high inter-nodal traffic

rates are typically bandwidth- and latency-sensitive. These applications will benefit from the low latency, high bandwidth, and native

Remote Direct Memory Access (RDMA) capabilities of InfiniBand using the Cisco SFS 7000 Series InfiniBand Server Switches.

Customers can be assured of an appropriate interconnect solution for their HPC cluster application requirements.

Figure 1. Example HPC Cluster Based on Microsoft CCS and End-to-End Cisco Ethernet and InfiniBand Interconnects

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Topology Example 1: Dedicated Private Network; Public Network to Head Node Only Figure 2 shows a sample topology. This is a simple, high-performance

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Topology 3: Dedicated MPI Network; Public Network Connection to Head Node A dedicated MPI network offers the best performance of any network scenario

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Topology 4: Dedicated MPI Network with all Nodes Connected to Public Network Topology 4 also uses a dedicated MPI network, so offers similar performa

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Topology 5: Single Public Network Connection to all Nodes Topology 5 (Figure 8) is the simplest of all supported Windows CCS topologies with all node

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Figure 9. Example Large Ethernet HPC Cluster Network Design Using Cisco Catalyst Switches Figure 10 shows a larger multi-rack InfiniBand MPI netw

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