Qlogic Infinipath qht7140 User manual

DATASHEET

Superior Application Performance. The InﬁniPath adapter’s low latency and high

message rates result in superior real-world application scalability across nearly all

modeling and simulation applications.

Well-known applications that have demonstrated superior scaling and outstanding

performance when running on clusters with the InﬁniPath interconnect include: NAMD,

Amber8, PETSc, Star-CD, Fluent, NWChem, DL_POLY, LS-DYNA, WRF, POP, MM5,

LAMMPS, GAMESS, CPMD, AM2, CHARMM, GROMACS and many others.

Highest Effective Bandwidth and Message Rate. Because of its high messaging rate,

the InﬁniPath bandwidth curve rises faster than any other adapter.

The InﬁniPath HTX adapter delivers signiﬁcantly more bandwidth at message sizes

typical of real-world HPC applications and many enterprise applications. It also deliv-

ers the highest effective bandwidth of any cluster interconnect because it achieves

half its peak bandwidth (n1/2)2at a message size of just 385 bytes, the lowest in the

industry. This means that applications run faster on the InﬁniPath adapter than on any

other interconnect.

Such superior performance is a beneﬁt of the unique, highly-pipelined, cut through

design that initiates a new message much faster than competitive alternatives. This

approach allows application message transmission to scale close to linearly when ad-

ditional CPU cores are added to a system, dramatically reducing application run times.

Other less effective interconnects can become a performance bottleneck, lowering the

return on investment of your computing resources.

Lowest MPI & TCP Latency. The InﬁniPath industry-leading MPI ping-pong latency of

1.29 microseconds2(µs) is less than half of the latency of other InﬁniBand adapters.

Unlike other interconnects, its random-ring latency for up to 256 CPUs, as measured

InfiniPath®

QHT7140

• Increases cluster efﬁciency and application productivity

• Provides superior application scaling to 1000s of CPUs

• Enables faster application run times for faster

time-to-solution

• Increases utilization of computing infrastructure

• Increases ROI of computing assets

HyperTransport HTX to InﬁniBand

4X Adapter

Beneﬁts

• HTX to InﬁniBand 4X adapter

• HTX half-height short form factor

• 1.29 µs one-way MPI latency through an InﬁniBand switch

• 954 MB/s uni-directional bandwidth1

• 88 byte n1/2 streaming message size (1 CPU core)1

• 3 year hardware warranty

Features

The InﬁniPath HTX InﬁniBand adapter delivers industry-lead-

ing performance in a cluster interconnect, allowing organiza-

tions to gain maximum advantage and return on their invest-

ment in clustered systems by driving up the utilization of the

computing infrastructure.

The InﬁniPath adapter yields the lowest latency, the highest

message rate and highest effective bandwidth of any cluster

interconnect available. As a result, organizations relying on

clustered systems for critical computing tasks will experience

a signiﬁcant increase in productivity.

by the HPC Challenge Benchmark Suite, is nearly identical to its ping-pong

latency, even as you increase the number of nodes.

The InﬁniPath adapter, using a standard Linux distribution, also achieves the

lowest TCP/IP latency and outstanding bandwidth.3Eliminating the excess

latency found in traditional interconnects reduces communications wait time

and allows processors to spend more time computing, which results in ap-

plications that run faster and scale higher.

Lowest CPU Utilization. The InﬁniPath connectionless environment elimi-

nates overhead that wastes valuable CPU cycles. It provides reliable data

transmission without the vast resources required by connection-oriented

adapters, thus increasing the efﬁciency of your clustered systems.

Built on Industry Standards. The InﬁniPath adapter supports a rich com-

bination of open standards to achieve industry-leading performance. The

InﬁniPath OpenIB software stack has been proven to be the highest perfor-

mance implementation of the OpenIB Verbs layer, which yields both superior

latency and bandwidth compared to other InﬁniBand alternatives.

• InﬁniBand 1.1 4X Compliant

• Standard InﬁniBand fabric management

• MPI 1.2 with MPICH 1.2.6

• OpenIB supporting IPoIB, SDP, UDP and SRP

• PCI Express x8 Expansion Slot Compatible

• Supports SUSE, Red Hat, and Fedora Core Linux

DATASHEET

© 2006 QLogic Corporation. All rights reserved. QLogic, the QLogic Logo, Pathscale, InﬁniPath, and Accelerating Cluster Performance are registered trademarks or trademarks of QLogic. HyperTransport and HTX are licensed trademarks of the HyperTransport Technology

Association. AMD, the AMD Arrow logo, AMD Opteron and combinations thereof are trademarks of Advanced Micro Devices, Inc. Other trademarks are the property of their respective owners.

SN0058045-00 Rev D 11/06

Corporate Headquarters QLogic Corporation 26650 Aliso Viejo Parkway Aliso Viejo, CA 92656 949.389.6000

Europe Headquarters QLogic (UK) LTD. Surrey Technology Centre 40 Occam Road Guildford Surrey GU2 7YG UK +440(0)1483 295825

InfiniPath QHT7140

HyperTransport Interface

• HT v1.0.3 compliant

• HTX slot compliant

• 6.4 GB/s bandwidth

• ASIC supports a tunnel conﬁguration with

upstream and downstream ports at 16 bits

@1.6 GT/s

Connectivity

• Single InﬁniBand 4X port (10+10 Gbps) –

Copper

• External ﬁber optic media adapter module

support

• Compatible with managed InﬁniBand switches

from Cisco®, SilverStorm™, Mellanox®, and

Voltaire®

• Interoperable with host channel adapters (HCAs)

from Cisco, SilverStorm, Mellanox and Voltaire run-

ning the Open Fabrics software stack

QLogic Host Driver/Upper level

Protocol (ULP) Support

• MPICH version 1.2.6

• TCP, NFS, UDP, SOCKETS through Ethernet driver

emulation

• Optimized MPI protocol stack supplied

• 32- and 64-bit application ready

• SDP, SRP, IPoIB supported through OpenFabrics

stack

InﬁniBand Interfaces and speciﬁcations

• 4X speed (10+10 Gbps)

• Uses standard IBTA 1.1 compliant fabric and

cables; Link layer compatible

• Conﬁgurable MTU size (4096 maximum)

• Integrated SERDES

Management Support

• Includes InﬁniBand 1.1 compliant SMA (Subnet

Management Agent)

• Interoperable with management solutions from

Cisco, SilverStorm,, and Voltaire

Regulatory Compliance

• FCC Part 15, Subpart B, Class A

• ICES-003, Class A

• EN 55022, Class A

• VCCI V-3/2004.4, Class A

Operating Environments

• Supports 64-bit Linux with 2.6.11 kernels

- Red Hat Enterprise Linux 4.x

- SUSE Linux 9.3 & 10.0

- Fedora Core 3 & Fedora 4

• Uses standard Linux TCP/IP stack

QLogic InﬁniPath Adapter Speciﬁcations

• Typical Power Consumption: 5 Watts

• Available in PCI half height short and PCI full

height short form factors

• Operating Temperature: 10 to 45°C at 0-3km –

30 to 60°C (Non-operating)

• Humidity 20% to 80% (Non-condensing,

Operating) 5% to 90% (Non-operating)

QLogic InﬁniPath ASIC Speciﬁcations

• HFCBGA package, 841 pin, 37.5 mm x 37.5 mm

ball pitch

• 330 signal I/Os

• 4.1W typical (HT cave), 4.4W typical (HT tunnel)

• Requires 1.2V and 2.5V supplies, plus interface

reference voltages

1Ping-pong latency and uni-directional bandwidth were measured by Dr. D. K. Panda on 2.8 GHz processors at Ohio State University using the standard OSU Ping-pong latency test.

2The n1⁄2 measurement was done with a single processor node communicating to a single processor node through a single level of switch. When measured with 4 processor cores per node

the n1⁄2 number was further improved to 88 bytes and 90% of the peak bandwidth was achieved with data packets of approximately 640 bytes.

3TCP/IP bandwidth and latency were measured using Netperf and a standard Linux TCP/IP software stack.

Note: Actual performance measurements may be improved over data published in this document. All current performance data is available in the InﬁniPath section of the QLogic website at

www.qlogic.com/pathscale.

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