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The increasing demand for computing capability is driving the appearance of diverse parallel paradigms. Recently, MPI+OpenMP hybrid paradigm codes have been proved high performance efficiency in many applications and have been widely studied. But its relationship with MPI and OpenMP paradigm codes still need further study. In this paper, we focus on two aspects, the overhead and the number of processors...
In parallel computing, the memory requirement is an important problem, and in parallel software development, it is vital to optimize the memory management strategy. Programmers need to know the memory optimizing degree. But, the parallel programs' performance evaluation metric speedup only refers to computing time, without considering the memory cost when executing programs. In this paper, the relationship...
Directing at the complex structure, cockamamie production technology and great operation difficulty of vertical roller mill, this paper constructs the fault expert system to guide and optimize the grinding process. First, the expert database is established with fuzzy cluster analysis, principal component analysis (PCA) and tendency analysis. With support vector machine (SVM) regression, the multiple...
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