Definition

explicit parallelism

Explicit parallelism is a concept of processor-compiler efficiency in which a group of instructions is sent from the compiler to the processor for simultaneous rather than sequential execution. Explicit parallelism is a feature of Explicitly Parallel Instruction Computing (EPIC) and Intel's EPIC-based architecture, IA-64.

This was last updated in January 2006

Continue Reading About explicit parallelism

Intel offers an IA-64 Architecture overview.

HP's Web site includes the IA-64 Instruction Set Architecture Guide.

Intel also provides an Itanium Processor Microarchitecture Reference.

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Java virtual machine (JVM) A Java virtual machine (JVM), an implementation of the Java Virtual Machine Specification, interprets compiled Java binary code (called bytecode) for a computer's processor (or "hardware platform") so that it can perform a Java program's instructions.

compiler A compiler is a special program that processes statements written in a particular programming language and turns them into machine language or "code" that a computer's processor uses.

sensor hub A sensor hub is a connection point for multiple sensors that uses a multipoint control unit (MCU), coprocessor or digital signal processor (DSP) to compile and process data gathered from those sensors.

speculation (speculative loading) Speculation (also known as speculative loading), is a process implemented in Explicitly Parallel Instruction Computing (EPIC) processors and their compilers to reduce processor-memory exchanging bottlenecks or latency by putting all the data into memory in advance of an actual load instruction.

predication (branch predication) Predication (also called branch predication) is a process implemented in Explicitly Parallel Instruction Computing (EPIC)-based processors and their compilers to increase performance by eschewing branch prediction (a common technique used in modern processors), where a wrong guess by the processor brings a performance penalty.

VLIW (very long instruction word) Very long instruction word (VLIW) describes a computer processing architecture in which a language compiler or pre-processor breaks program instruction down into basic operations that can be performed by the processor in parallel (that is, at the same time).

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