文档介绍：HP and ANSYS Team up for Leadership Performance on
Itanium-based HP-UX: A Study in Performance
Don Mize
Hewlett-pany

Abstract
HP’s Itanium performance gains will impress anyone who uses ANSYS software. In 2001, ANSYS was the
first CAE application ported to HP Itanium 1 based systems. Fast-forward 2001 – 2003 - Today’s
industrial strength, top of the line Itanium 2 64-bit processor has exceptional floating-point performance.
This paper will discuss the performance benefits that ANSYS users have experienced since the first release
of ANSYS on HP-UX Itanium. It will also provide an overview of HP’s close working relationship with
ANSYS, and how hardware and software improvements were made that culminated in the essful
ANSYS performance demonstrated today.
Introduction
In the last two and half years, the IPF (Itanium Processor Family) has evolved from a first generation
processor to an industrial strength processor with increasing market share. This is partly because of
overwhelming floating-point performance due to architectural enhancements, and clock speed increases.
Also partly due to building on the system software technology from HP, and the hard work done porting
and optimizing by application engineers both at HP and people at the various vendors such as ANSYS.
HP-UX, still the only enterprise-level UNIX OS for Itanium
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