Performance-Aware Model for Sparse Matrix-Matrix Multiplication on the Sunway TaihuLight Supercomputer

Chen, Yuedan; Li, Kenli; Wu, Yang; Li, Xiaoxue; Xie, Xuetong; Li, Tao

doi:10.1109/tpds.2018.2871189

Cited by 98 publications

(27 citation statements)

References 31 publications

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“…Lead halide-based perovskites have been widely studied as absorbing materials for thin film solar cells with a power conversion efficiency of about 20%, [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. These compounds can also be used as a promising emitter in light-emitting diodes (LEDs) [15][16][17][18][19][20][21][22][23][24][25][26][27][28]. The general chemical formula for HIPs is ABX 3 , where A is a monovalent inorganic cation, similar to Cs + : cesium; X is a halogen anion including F − , I − , Br − , and Cl − , and B is a divalent metallic cation such as Pb 2+ , Sn 2+ , Cu 2+ , etc.…”

Section: Introductionmentioning

confidence: 99%

RETRACTED: The Effect of Structural Phase Transitions on Electronic and Optical Properties of CsPbI3 Pure Inorganic Perovskites

et al. 2021

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Hybrid inorganic perovskites (HIPs) have been developed in recent years as new high-efficiency semiconductors with a wide range of uses in various optoelectronic applications such as solar cells and light-emitting diodes (LEDs). In this work, we used a first-principles theoretical study to investigate the effects of phase transition on the electronic and optical properties of CsPbI3 pure inorganic perovskites. The results showed that at temperatures over 300 °C, the structure of CsPbI3 exhibits a cube phase (pm3m) with no tilt of PbI6 octahedra (distortion index = 0 and bond angle variance = 0). As the temperature decreases (approximately to room temperature), the PbI6 octahedra is tilted, and the distortion index and bond angle variance increase. Around room temperature, the CsPbI3 structure enters an orthorhombic phase with two tilts PbI6 octahedra. It was found that changing the halogens in all structures reduces the volume of PbI6 octahedra. The tilted PbI6 octahedra causes the distribution of interactions to vary drastically, which leads to a change in band gap energy. This is the main reason for the red and blue shifts in the absorption spectrum of CsPbI3. In general, it can be said that the origin of all changes in the structural, electronic, and optical properties of HIPs is the changes in the volume, orientation, and distortion index of PbI6 octahedra.

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Section: Introductionmentioning

confidence: 99%

RETRACTED: The Effect of Structural Phase Transitions on Electronic and Optical Properties of CsPbI3 Pure Inorganic Perovskites

et al. 2021

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“…Architects must apply their skills to adapt to the climate of each region, using their skills [21,63,79,80]. In sustainable architecture, it should be noted that the application of sustainable architecture principles in the selection of materials and construction methods should be according to the climatic conditions of the same area and sometimes different strategies are used depending on each climate in the architectural process of the building [74,139,140]. In its broadest context, sustainability refers to a society ecosystem or any existing system's ability to operate indefinitely throughout the coming years (without being forced to discontinue due to depletion or lack of resources).…”

Section: Discussionmentioning

confidence: 99%

Hotel Construction Management considering Sustainability Architecture and Environmental Issues

Kadaei

Sadeghian

Majidi

et al. 2021

Shock and Vibration

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Sustainable development and environment in the activities of the construction industry has attracted the attention of experts in most countries of the world. One of the obvious and problematic features of the construction industry of countries is the use of modern building materials using traditional construction methods. Changing the paradigm for sustainable buildings requires a change in the architectural design process. Today, smart buildings are buildings that are at a lower level in terms of energy consumption and operate in a dynamic and integrated environment, creating a perfect harmony between management, system, services, and structure. These qualities make plastics ideal products for construction and an essential component for a sustainable built environment. In the design of smart and sustainable buildings, the use of environmentally friendly materials increases the lifespan of the building and an effective step is taken towards the design of sustainable architecture. In this paper, we evaluate hotel construction based on sustainability issues with MCDM. The results show that alternative A4 is the best alternative in sustainable issues. With the increasing population and its concentration in large cities, the concern of energy supply and energy efficiency in buildings is one of the main concerns of urban planners, officials, and city residents. Construction projects mainly consume large amounts of materials and leave a huge amount of waste, and this problem sometimes includes existing buildings that cannot be demolished and need to be rebuilt and maintained.

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“…The Sunway TaihuLight is a new generation heterogeneous many-core supercomputer system developed by the National Research Center of Parallel Computer Engineering Technology (NRCPC) in Wuxi, China. The peak speed of the Sunway TaihuLight is 125.436 PFlops, which is the first supercomputer in the world with a speed exceeding 100 PFlops [14], [15]. Moreover, the Sunway TaihuLight supercomputer system adopts an extensible polymorphic composite architecture oriented to high-performance computing, adopts high-density assembly, high-efficiency dc power supply, and whole-machine water cooling key technologies, and is equipped with accurate resource scheduling management, rich parallel programming language and development environment.…”

Section: Background a The Sunway Taihulight Supercomputermentioning

confidence: 99%

Implementation of Hybrid Alignment Algorithm for Protein Database Search on the SW26010 Many-Core Processor

Zhang

Feng

et al. 2019

IEEE Access

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In biological research, biology sequence alignment algorithm aims to find similarities between sequences. As the size of biological database increases exponentially, the complexity of sequence alignment process also increases rapidly, which results in a large amount of computational time. The Sunway TaihuLight is the world's first heterogeneous supercomputer with peak performance over 100 PFlops and provides a new hardware platform for database search. In this paper we present an efficient method of protein database search based on Sunway TaihuLight supercomputer. Furthermore, we also optimize protein database search on Sunway TaihuLight to give full play to the performance of the SW26010 processor. In our proposed approach, we design hybrid sequence alignment by combining the Smith-Waterman local alignment algorithm and the Needleman-Wunsch global alignment algorithm. The protein database search is paralleled by message passing interface (MPI) and accelerated thread library (Athread). Experiment results with the Swiss-Prot database show that our implementation can effectively leverage the SW26010 processor's special hardware architecture and achieve a speedup to 15.91 times on a single node. In addition, we expand the scale to 64 nodes to test the scalability of the parallel method on the Sunway TaihuLight system, and the results show that our parallel implementation of protein database search have a good expansibility and reliability.

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Performance-Aware Model for Sparse Matrix-Matrix Multiplication on the Sunway TaihuLight Supercomputer

Cited by 98 publications

References 31 publications

RETRACTED: The Effect of Structural Phase Transitions on Electronic and Optical Properties of CsPbI3 Pure Inorganic Perovskites

RETRACTED: The Effect of Structural Phase Transitions on Electronic and Optical Properties of CsPbI3 Pure Inorganic Perovskites

Hotel Construction Management considering Sustainability Architecture and Environmental Issues

Implementation of Hybrid Alignment Algorithm for Protein Database Search on the SW26010 Many-Core Processor

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