Using multimedia writing tools ‘Author ware＇ for Windows 3.0b18, and making a multimedia interface for a simple interface generated by FoxPro 2.5B, mainly to solve how to connect an interface with Author ware and Fo...Using multimedia writing tools ‘Author ware＇ for Windows 3.0b18, and making a multimedia interface for a simple interface generated by FoxPro 2.5B, mainly to solve how to connect an interface with Author ware and FoxPro database, namely the communication problem between two separate programs under the Windows environment and to generate the multimedia interface which is consistent with the status and requests for the management information system, namely the problem that how to establish multimedia interface design.展开更多
The superconducting rapid single flux quantum(RSFQ)integrated circuit is a promising solu-tion for overcoming speed and power bottlenecks in high-performance computing systems in the post-Moore era.This paper presents...The superconducting rapid single flux quantum(RSFQ)integrated circuit is a promising solu-tion for overcoming speed and power bottlenecks in high-performance computing systems in the post-Moore era.This paper presents an architecture designed to improve the speed and power limitations of high-performance computing systems using superconducting technology.Since superconducting microprocessors,which operate at cryogenic temperatures,require support from semiconductor cir-cuits,the proposed design utilizes the von Neumann architecture with a superconducting RSFQ mi-croprocessor,cryogenic semiconductor memory,a room temperature field programmable gate array(FPGA)controller,and a host computer for input/output.Additionally,the paper introduces two key circuit designs:a start/stop controllable superconducting clock generator and an asynchronous communication interface between the RSFQ and semiconductor chips used to implement the control system.Experimental results demonstrate that the proposed design is feasible and effective,provi-ding valuable insights for future superconducting computer systems.展开更多
A Smart resistance thermometer sensor is designed to overcome the shortages of the traditional ones, and Con-form to the world development trend of the sensor market.According to the constitutions of this Smart sensor...A Smart resistance thermometer sensor is designed to overcome the shortages of the traditional ones, and Con-form to the world development trend of the sensor market.According to the constitutions of this Smart sensor and its application coverage,those parts with good -application and low-cost were chosen to constitute this sensor on the basis of full consideration of the linkage among every part.The whole testing system were controlled and processed by C8051F350 single-chip,it could measure precise temperature by PT100 resistance thermometer and circumstance temperature for temperature compensating automatically and simultane-ously,it also could amplify signals to convert analog signals to digital ones,and display results automatically by analysing and processing information.Furthermore,it could auto-compensate self-check,and spot communicate.展开更多
A parallel algorithm of circulation numerical model based on message passing interface（MPI） is developed using serialization and an irregular rectangle decomposition scheme. Neighboring point exchange strategy（NPES...A parallel algorithm of circulation numerical model based on message passing interface（MPI） is developed using serialization and an irregular rectangle decomposition scheme. Neighboring point exchange strategy（NPES） is adopted to further enhance the computational efficiency. Two experiments are conducted on HP C7000 Blade System, the numerical results show that the parallel version with NPES（PVN） produces higher efficiency than the original parallel version（PV）. The PVN achieves parallel efficiency in excess of 0.9 in the second experiment when the number of processors increases to 100, while the efficiency of PV decreases to 0.39 rapidly. The PVN of ocean circulation model is used in a fine-resolution regional simulation, which produces better results. The capability of universal implementation of this algorithm makes it applicable in many other ocean models potentially.展开更多
Spiking Neural Network(SNN)simulation is very important for studying brain function and validating the hypotheses for neuroscience,and it can also be used in artificial intelligence.Recently,GPU-based simulators have ...Spiking Neural Network(SNN)simulation is very important for studying brain function and validating the hypotheses for neuroscience,and it can also be used in artificial intelligence.Recently,GPU-based simulators have been developed to support the real-time simulation of SNN.However,these simulators’simulating performance and scale are severely limited,due to the random memory access pattern and the global communication between devices.Therefore,we propose an efficient distributed heterogeneous SNN simulator based on the Sunway accelerators(including SW26010 and SW26010pro),named SWsnn,which supports accurate simulation with small time step(1/16 ms),randomly delay sizes for synapses,and larger scale network computing.Compared with existing GPUs,the Local Dynamic Memory(LDM)(similar to cache)in Sunway is much bigger(4 MB or 16 MB in each core group).To improve the simulation performance,we redesign the network data storage structure and the synaptic plasticity flow to make most random accesses occur in LDM.SWsnn hides Message Passing Interface(MPI)-related operations to reduce communication costs by separating SNN general workflow.Besides,SWsnn relies on parallel Compute Processing Elements(CPEs)rather than serial Manage Processing Element(MPE)to control the communicating buffers,using Register-Level Communication(RLC)and Direct Memory Access(DMA).In addition,SWsnn is further optimized using vectorization and DMA hiding techniques.Experimental results show that SWsnn runs 1.4−2.2 times faster than state-of-the-art GPU-based SNN simulator GPU-enhanced Neuronal Networks(GeNN),and supports much larger scale real-time simulation.展开更多
文摘Using multimedia writing tools ‘Author ware＇ for Windows 3.0b18, and making a multimedia interface for a simple interface generated by FoxPro 2.5B, mainly to solve how to connect an interface with Author ware and FoxPro database, namely the communication problem between two separate programs under the Windows environment and to generate the multimedia interface which is consistent with the status and requests for the management information system, namely the problem that how to establish multimedia interface design.
基金the Strategic Priority Research Program of Chinese Academy of Sciences(No.XDA18000000)the National Natural Science Foundation of China(No.61732018,61872335).
文摘The superconducting rapid single flux quantum(RSFQ)integrated circuit is a promising solu-tion for overcoming speed and power bottlenecks in high-performance computing systems in the post-Moore era.This paper presents an architecture designed to improve the speed and power limitations of high-performance computing systems using superconducting technology.Since superconducting microprocessors,which operate at cryogenic temperatures,require support from semiconductor cir-cuits,the proposed design utilizes the von Neumann architecture with a superconducting RSFQ mi-croprocessor,cryogenic semiconductor memory,a room temperature field programmable gate array(FPGA)controller,and a host computer for input/output.Additionally,the paper introduces two key circuit designs:a start/stop controllable superconducting clock generator and an asynchronous communication interface between the RSFQ and semiconductor chips used to implement the control system.Experimental results demonstrate that the proposed design is feasible and effective,provi-ding valuable insights for future superconducting computer systems.
文摘A Smart resistance thermometer sensor is designed to overcome the shortages of the traditional ones, and Con-form to the world development trend of the sensor market.According to the constitutions of this Smart sensor and its application coverage,those parts with good -application and low-cost were chosen to constitute this sensor on the basis of full consideration of the linkage among every part.The whole testing system were controlled and processed by C8051F350 single-chip,it could measure precise temperature by PT100 resistance thermometer and circumstance temperature for temperature compensating automatically and simultane-ously,it also could amplify signals to convert analog signals to digital ones,and display results automatically by analysing and processing information.Furthermore,it could auto-compensate self-check,and spot communicate.
基金The National High Technology Research and Development Program(863 Program)of China under contract No.2013AA09A505
文摘A parallel algorithm of circulation numerical model based on message passing interface（MPI） is developed using serialization and an irregular rectangle decomposition scheme. Neighboring point exchange strategy（NPES） is adopted to further enhance the computational efficiency. Two experiments are conducted on HP C7000 Blade System, the numerical results show that the parallel version with NPES（PVN） produces higher efficiency than the original parallel version（PV）. The PVN achieves parallel efficiency in excess of 0.9 in the second experiment when the number of processors increases to 100, while the efficiency of PV decreases to 0.39 rapidly. The PVN of ocean circulation model is used in a fine-resolution regional simulation, which produces better results. The capability of universal implementation of this algorithm makes it applicable in many other ocean models potentially.
基金supported by the Key Research and Development Project of Guangdong Province(No.2021B0101310002)the National Key Research and Development Program of China(No.2021YFF1200104)+4 种基金the Strategic Priority CAS Project(No.XDB38050100)the National Natural Science Foundation of China(No.62272449)the Shenzhen Basic Research Fund(Nos.RCYX20200714114734194,JCYJ20210324102007021,and KQTD20200820113106007)the Open Fund of Guangdong Laboratory of Artificial Intelligence and Digital Economy(SZ)(No.GML-KF-22-13)the Shenzhen Key Laboratory of Intelligent Bioinformatics(No.ZDSYS20220422103800001).
文摘Spiking Neural Network(SNN)simulation is very important for studying brain function and validating the hypotheses for neuroscience,and it can also be used in artificial intelligence.Recently,GPU-based simulators have been developed to support the real-time simulation of SNN.However,these simulators’simulating performance and scale are severely limited,due to the random memory access pattern and the global communication between devices.Therefore,we propose an efficient distributed heterogeneous SNN simulator based on the Sunway accelerators(including SW26010 and SW26010pro),named SWsnn,which supports accurate simulation with small time step(1/16 ms),randomly delay sizes for synapses,and larger scale network computing.Compared with existing GPUs,the Local Dynamic Memory(LDM)(similar to cache)in Sunway is much bigger(4 MB or 16 MB in each core group).To improve the simulation performance,we redesign the network data storage structure and the synaptic plasticity flow to make most random accesses occur in LDM.SWsnn hides Message Passing Interface(MPI)-related operations to reduce communication costs by separating SNN general workflow.Besides,SWsnn relies on parallel Compute Processing Elements(CPEs)rather than serial Manage Processing Element(MPE)to control the communicating buffers,using Register-Level Communication(RLC)and Direct Memory Access(DMA).In addition,SWsnn is further optimized using vectorization and DMA hiding techniques.Experimental results show that SWsnn runs 1.4−2.2 times faster than state-of-the-art GPU-based SNN simulator GPU-enhanced Neuronal Networks(GeNN),and supports much larger scale real-time simulation.
