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The Anda manuscript and Haihun slips have revealed that there were several different stanza permutations for poems in the “Guo feng” 國風 in early China. As most repetitive stanzas are essentially nonlinear, there is no intrinsic sequence for many poems. Rather than finding a “superior” stanza order, I would like to consider how the various stanza orders might challenge traditional interpretations of references to stanza numbers in the Zuozhuan 左傳 and the hermeneutical rule of “orderly progression” in the Shijing. Just as establishing the order of stanzas took a long time, the development of this rule was gradual. The belief in there being an unalterable stanza order not only influences how rhymes are interpreted but also shapes how lines and verses are annotated. Therefore, reconsidering the theory of orderly progression is a step towards re-evaluating the tradition of Shijing interpretation.

Stencil-based kernels constitute the core of many important scientific applications on block-structured grids. Unfortunately, these codes achieve a low fraction of peak performance, due primarily to the disparity between processor and main memory speeds. In this paper, we explore the impact of trends in memory subsystems on a variety of stencil optimization techniques and develop performance models to analytically guide our optimizations. Our work targets cache reuse methodologies across single and multiple stencil sweeps, examining cache-aware algorithms as well as cache-oblivious techniques on the Intel Itanium2, AMD Opteron, and IBM Power5. Additionally, we consider stencil computations on the heterogeneous multicore design of the Cell processor, a machine with an explicitly managed memory hierarchy. Overall our work represents one of the most extensive analyses of stencil optimizations and performance modeling to date. Results demonstrate that recent trends in memory system organization have reduced the efficacy of traditional cache-blocking optimizations. We also show that a cache-aware implementation is significantly faster than a cache-oblivious approach, while the explicitly managed memory on Cell enables the highest overall efficiency: Cell attains 88% of algorithmic peak while the best competing cache-based processor achieves only 54% of algorithmic peak performance.

Although the primary function of the lullaby is coded in the very word that designates it, its secondary functions are equally important – they have been shown to have an impact on child development and mental health of the performer. The act of singing a lullaby creates a specific communicative situation in which the recipient does not fully understand its lyrics. Usually, the communicative act also only involves the performer and the child and the uniquely intimate moment that emerges creates an opportunity for the expedient to express all their thoughts – even the most unpleasant ones. The psycho-hygienic function comes to the fore and provides the performer with a space for introspection. This dimension is often reflected in the texts of lullabies in negative motifs, such as death. In various allegorical forms, death is present in as many as one in five Slovak folk lullabies. In careful interpretative analysis, it is possible to detect subtle differences in the meaning of motifs that may not originally refer to death. On this basis, death motifs can be divided into primary ones, which always symbolise death (black earth, church, river, covering/throwing, ringing of the bells, calling of a close person from the other world) and secondary ones, which acquire this meaning by updating individual motifs or whole recurring stanzas in the vertical structure of the text.