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Computer Systems Architecture
Pages 10 (2510 words)
Traditional architecture could no longer address the complex and growing need to process massive data at a given time. Heavy workloads placed too much pressure on high performance servers and hardware. IA-64 architecture resolves the demand for complex requirements of the Internet, e-commerce, database management and other applications that traditional architecture could not meet…
In order to overcome the limitations met by traditional architectures, IA-64 used a technique called predication where it could indicate which paths are being utilized and which are not. The paths that are in use proceed with their activity while paths detected as unused would be automatically turned off. Predication is an effective technique that allows the handling of complex activities when the computer pursues aggressive instruction level parallelism (ILP).2
Memory insufficiency is a common problem that traditional architecture cannot address because CPU's run on faster speeds than usual. IA-64 resolves the problem by using a technique referred to as speculation.3 The purpose of this is to initiate loads of previous memory initiations even before the branch is required. This makes the memory available on demand. This also increases instruction level parallelism thus reducing the "impact of memory latency".4 The "Nat" bits allow IA-64 to load data ahead of time without registering an error message.5
Traditional architectures have limited instruction level parallelism. ...
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