| Summary: | 碩士 === 國立成功大學 === 電機工程研究所 === 84 === In this thesis, efforts are devoted to the design and
implementation of a user-level multi-threaded distributed
shared memory system. This DSM system is built on a cluster of
PCs connected by network and running the SUN Solaris 2.4
operating system. It supports two memory consistency models ,
namely sequential consistency and release consistency, within a
single program. The static user global shared variables in
users* programs will be allocated in the sequentail memory and
distributed automatically to all nodes among our DSM system
without any annotation. The false- sharing data can be
allocated in release memory to gain better performance. The
multi-threaded programming environment allows programmers to
straightforwardly parallelize programs without limitation on
the number of computing nodes. We implement this DSM system by
user-level approach to preserve the portability and
scalability. Currently, we have successfully ported our DSM
system on the Linux platform. Our DSM system performs well in
elementary experiments. The testing platform consists of 4
Pentium-90 PCs connected by 10Mbps Ethernet. It will gain
satisfied performance and speedup if the problem size is large
enough. In the 8192 N-Body, the speedup will be 3.54 while
running on 4 nodes. The speedup in 512 by 512 Matrix
Multiplication can approach 2.2.
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