Hi, I am trying to do parallelization for a computing intensive problem. I am working on a Linux cluster where each node is a multicore processor. e.g. 2 or 4 quad-core processor per node. I want to reduce latency and improve performance as much as possible. I plan to use multiprocessing and multithreading at the same. Each process run on a distinct node and each process spawn many threads on each node. This is a 2 level parallelism. For multiprocessing, I would like to choose MPI. For multithreading, I have two choices: openMP or boost::thread (pthread). Which one has lower latency and higher performance ? It seems that openMP coding is easier (without touching low level thread managing manually). But, it seems that openMP has higher overhead than boost::thread (pthread). Any help is really appreciated. thanks
D*h
6 楼
第一步是要写一个程序,然后要求 1. Test cases with all program I/O specified to test the above application 2. Driver program that automate the testing of above test cases. 具体是要做到什么呢?多谢!
b*d
7 楼
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