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Papers by Daniel Dias

Ibm Systems Journal, 1995

scalable parellel systems are Increasingly being used today to address existing and emerging appl... more scalable parellel systems are Increasingly being used today to address existing and emerging application areas that require performance levels significantly beyond what symmetric multiprocessors are capable of providing. These areas Include tl'lJdltlonal technical computing applications, commercial computing applications such as decision support and transaction processing, and emerging areas such as "grend challenge applications, dlgitaillbrerles, and video production and distribution. The IBM SP1'" Is a genere/-purpose scalable parellel system designed to address a wide renge of these appOClJtlons. This paper gives an overview of the architecture and structure of SP2, discusses the m/ona/e for the significant system design decisions that were made, Indicates the extent to which key obJectives were met, and Identifies future system challenges and advanced technology development areas.

A Simple Analysis of the LRU Buffer Policy and Its Relationship to Buffer Warm-Up Transient

In a database system, a buffer hit transient may occur after a load surge or a node failure. The ... more In a database system, a buffer hit transient may occur after a load surge or a node failure. The buffer warm-up transient is the expected buffer hit probability as a func-tion of the time, starting with an empty buffer until the buffer is full. It is only after the buffer becomes full that a ...

Journal of Economic Perspectives, 2006