Portal de Periódicos da CAPES

A control-parallel programming model implemented on SIMD hardware

1993; Springer Science+Business Media; Linguagem: Inglês

10.1007/3-540-57502-2_55

1611-3349

H. G. Dietz, William E. Cohen,

Distributed and Parallel Computing Systems

Although “data parallelism” has been shown to be an effective and portable way to express some types of parallel algorithms, there are many other problems for which data parallelism seems awkward and inefficient. For example, recursive decompositions and operations on irregular grids are most readily expressed using control parallelism. The problem is that control parallelism has always been associated with MIMD (Multiple Instruction stream, Multiple Data stream) hardware. In this paper, we describe how to make a MIMD programming model execute efficiently on a SIMD (Single Instruction stream, Multiple Data stream) computer.The efficient execution of control-parallel code on a SIMD machine involves a careful blend of compiler technology and design and semi-automatic construction of the support routines (i.e., the MIMD emulator). This paper discusses how the techniques were applied to give the appearance of a 16;384-processor shared memory barrier MIMD using the hardware of a SIMD MasPar MP-1.