Highly efficient densitybased topology optimization using dctbased digital image compression article pdf available in structural and multidisciplinary optimization november 2017 with 632 reads. Pdf mpi standard offers a set of topologyaware interfaces that can be used. Trial of super high efficiency rectifiers 98% in telecom networks. Inverse design methods, including objectivefirst and adjointbased. It is well known that the more the number of processors the less computing time consumed. Stacked hourglass networks for human pose estimation arxiv. One node can be neighbour of another when opposite can not. Multiview coding for imagebased rendering using 3d. Metropolishastingswithingibbs mcmc for bayesian inverse problemss. Improving simulations of mpi applications using a hybrid network model with topology and contention support. Structural topology optimization of multibody systems. Since systeminpackage sip technology enables the integration of heterogeneous functions e.
The dcdc converter is made of a currentfed fullbridge converter on the battery side and a fullbridge on the 380v bus side. To address this we create a novel dataset of high resolution 4d scans of human subjects in motion, captured at 60 fps. One way of extending static structural topology optimization to topology optimization of dynamic flexible multibody. Review of high efficiency bidirectional dcdc topologies. Kota department of mechanical engineering and applied mechanics, university of michigan, ann arbor, mi, usa abstract a procedure for the. Those terms from the world of networks may persuade computer architects to choose solutions which are not adequate to the requirements of efficient and faulttolerant operation. However, most usable network architectures are handcrafted and usually require expertise and elaborate design. Five motions were raised at the pamitc meeting, as well as two nonbinding polls related to professional memberships. The use of the topology optimization approach as applied to the design of. This work introduces a novel convolutional network architecture for the task of human pose estimation. Huawei launches industrys most efficient rectifier at 98%. Leveraging non blocking collective communication in highperformance applications.
Phase transition of the 2choices dynamics on coreperiphery networks. We show how repeated bottomup, topdown processing used in conjunction with intermediate supervision is critical to improving the performance of the network. Inrecentyears,anumberofmultiviewcompressionschemes have been developed specifically for use in conjunction with imagebased rendering applications. The resulting optimal design ideally satisfies all constraints while maximizing or minimizing an objective function. In this work, we apply the construction introduced in to discretizations of problems with strong material discontinuities and timevarying coefficients. Next, there are several possible ways to associate and track the keypoints and e distribution of f g figure 3. At 98% conversion efficiency, this rectifier can further reduce conversion power loss by 50% compared to a mainstream. It is observed that voltage gains higher than 20 is only achieved with topologies using a transformer. However, the extension to the dynamic case is less investigated as one has to face serious numerical difficulties. Convolutional neural networks have gained a remarkable success in computer vision. Braced frames are commonly employed in high rise buildings to resist lateral loads in the form of wind or seismic forces. Dafs storage for high performance computing using mpiio. Several approaches have been proposed for designing efficient high na metasurfaces including adjoint optimization 16, 1820, 25, 26 and patching together separately designed gratings 14,27.
Comparison of high efficiency with different topology. Sign up no description, website, or topics provided. Possibility to reduce size and cost of the power converter. As for the pushpull converter, t 1 and t 2 switches are alternately turned on during a time t on. Mpi implementations to provide highperformance collective operations.
To address this we create a novel dataset of highresolution 4d scans of human subjects in motion, captured at 60 fps. Code and data perceiving systems max planck institute. The capacitors in series across the supply fix a midpoint so that switches withstand only once the input voltage v in. Features are processed across all scales and consolidated to best capture the various spatial relationships associated with the body. An optimal control approach to power management for multi. A new hybrid approach to parallel programming with. This effort utilizes championpro, an efficient commercial implementation of the mpi1.
In order to obtain the routing table, we need ov rounds iteration until all the. Design and implementation of parallel algorithm used in. High forward surge capability g2 high robustness good reliability of the power converter. The cvf cosponsored cvpr 2015, and once again provided the community with an open access proceedings. For example, by implementing a switching trick to a dc to ac current converter used in solar panels, heribert schmidt, an electrical engineer with a doctorate, from the fraunhofer institute for solar energy systems has managed to halve inverter losses, bringing the efficiency to 98 percent. Novel methodologies for efficient and accurate modeling. Pdf multicore and network aware mpi topology functions. Topology optimization of compliant mechanisms with multiple.
This topology can be used for an output power capability up to 500w. Frecker department of mechanical and nuclear engineering, pennsylvania state university, university park, pa, usa n. High performance computing ohio supercomputer center discov 12 january 2004 paul a. Phase transition of the 2choices dynamics on coreperiphery. High performance computing hpc applications are increasingly demanding in. Cartesian regular mesh graph several ways to define in mpi additional routines provide access to the defined virtual topology virtual topologies are properties of a communicator topology routines all create a new communicator. An efficient parallel algorithm for selforganizing maps. The new hybrid switching method enables new singlestage acdc converter topology, the true bridgeless pfc converter consisting of just three switches and a single magnetic component albeit at a much higher efficiency approaching 98%, having a 0. With the intention to alleviate the heavy computational burden of the design framework, the authors present a podbased adaptive surrogate model for the rve solutions at the microscopic scale and make a step further towards the. To develop the lateral system, topology optimisation is carried out on an isotropic, homogeneous material. Braced frames are commonly employed in high rise buildings to resist lateral loads in.
Each converters primary benefit is highlighted, and a summary of all the converters is presented. Parallel fdtd method is applied to analyze the electromagnetic problems of the electrically large targets on super computer. Topology validation plays an important role in geocomputation. By coupling the low filtering requirements and low losses of the modular multilevel converter with low voltage, highly efficient gan hemts, the presented converter systems achieve high power density and efficiency with minimal filtering requirements. Highefficiency, largearea, topologyoptimized metasurfaces. For vector data, topology validation is an effective approach to ensure that data is normative and correct. Multiscale structural topology optimization discusses the development of a multiscale design framework for topology optimization of multiscale nonlinear structures. A new computational algorithm is introduced in the present study to solve multimaterial topology optimization problems. Topology optimization of low frequency structure with.
Multiscale structural topology optimization 1st edition. However, this topology requires driving a high side switch. Topology optimization of compliant mechanisms with multiple outputs m. Langer august 14, 2018 abstract topological sensitivities are a very useful tool for determining optimal designs.
Topology is one of the attributes for communicator. Online dynamic monitoring of mpi communications halinria. Nevertheless, with the same number of processors, computing efficiency is affected by the scheme of the mpi virtual topology. Topology optimization as first step towards optimal products. Farrell cluster computing 2 communicators a communicator is a parameter in all mpi message passing routines a communicator is a collection of processors that can engage in communication a communicator consists of a group of processes and a context. Topology optimization is an alternative design method that can overcome the efficiency limitations of conventional approaches 11. Podbased adaptive surrogate for the design of multiscale structures. Stacked hourglass networks for human pose estimation. Topology optimization of multiscale elastoviscoplastic structures. Efficient online multiperson 2d pose tracking with recurrent. Pdf an efficient 3d topology optimization code written in. Simultaneous topology optimization of structure and materials. Despite being tractable, the linear control models for power management cannot capture some important workload characteristics e. It is based on the penalization of the objective functional.
The core of the construction rests on the observation that, for a large class of problems, the dense schur complement matrices that arise in the nested dissection method display rankdeficient offdiagonal blo. Efficient online multiperson 2d pose tracking with recurrent spatiotemporal affinity fields. High efficiency high added value of the power converter. Topology optimization of low frequency structure with application to vibration energy harvester surendra singh, a. Topology optimization of electric machines based on. Narayana reddy, deepak sharma department of mechanical engineering, indian institute of technology, guwahati, india, 781039 email.
Enabling highlyscalable remote memory access programming with mpi3 one sided by. Feynman diagrams and lowdimensional topology springerlink. The topological derivative of a domaindependent functional represents the sensitivity with respect to the insertion of an in nitesi. Huaweis super high efficiency rectifier the rectifier is a key component of telecom equipment power supply systems. Virginia polytechnic institute and state university.
Some mpi mechanisms process topologies, neighbor colls. In mpi, a topology is a mechanism for associating different addressing schemes with the processes belonging to a group. This results in the effective and efficient use of material within the part. May 26, 2011 brilliant ideas usually dont need years of hard labor, or at least so it happens most of the time. Find a computationally cheap approximation to the full conditional. High performance computing hpc applications on such hierarchical. Efficient preconditioning of hpfem matrix sequences with. Incorporating a number of patented technologies including mpii high efficient topology, mepk intelligent algorithm and msht heat dissipation technology, the huawei rectifier can now achieve a peak conversion efficiency of 98% even at 50% load ratio, the prevalent dc load, an upgrade from the previous 96% conversion efficiency. Basis point set bps is a simple and efficient method for encoding 3d point clouds into fixedlength representations. Topology optimization of static structures with constant loads is an active research topic in structural mechanics.
Trial of super high efficiency rectifiers 98% in telecom. Solution of multimaterial topology optimization problems however includes several challenges. Incorporating a number of patented technologies including mpii, high efficient topology, mepk, intelligent algorithm and msht, heat dissipation technology. Parametric image segmentation of humans with structural shape. Possibility to reduce diode caliber bom cost reduction. Hence, to compute an optimal or at least an efficient process placement. Shenzhen, china, december 12, 20 huawei, a leading global information and communications technology ict solutions provider, has recently released its latest rectifier featuring 98% conversion efficiency globally, the highest conversion efficiency ever released commercially for telecom equipment power supply systems. An efficient 3d topology optimization code written in matlab article pdf available in structural and multidisciplinary optimization 506 december 2014 with 3,587 reads how we measure reads. Improving simulations of mpi applications using a hybrid. In this paper, we provide a blockwise network generation pipeline called blockqnn which automatically builds highperformance networks using the qlearning paradigm with epsilongreedy exploration.
Efficient online multiperson 2d pose tracking with. The computer vision foundation a nonprofit organization. Pdf an efficient 3d topology optimization code written. To achieve high mpi performance, automatic routine generators that take. Pdf trial of super high efficiency rectifiers 98% in. As pointedout, the main method used to increase the efficiency is to eliminate the transformer. Reduced database model for material microstructure optimizations. To satisfy the needs by experienced users of fortran andor mpi a jackpot version has also. In each round, we will update the value for ov vertices using p cores running independently, and use the parallel prefix to select the global closest vertex, so. We shall describe a program here relating feynman diagrams, topology of manifolds, homotopical algebra, noncommutative geometry and several kinds of topological physics.
High performance computing hpc applications on such hierarchical systems. But there are two problems in topology validation for massive geographic data. Nov 29, 2018 we evaluate results using topology a and b from fig. Starting from categories of the known computernetworksarea like messagehandling, bus, protocol etc. The core of the construction rests on the observation that, for a large class of problems, the dense schur complement matrices that arise in the nested dissection method display rankdeficient offdiagonal blocks. Topology optimization framework for multiscale nonlinear structures. Accept or reject samples from that with probability. Graph topology important tips of graph topology graph topology can only be used in intracommunicators. An mpi tool for automatically discovering the switch level. Topology optimization under nonlinear conditions contact and gasket material nonlinearities, definition and meshing of design space using an existing fe model.
Designing topologyaware collective communication algorithms. Advanced computing and communication techniques for high performance applications icaccthpa2014 5 an efficient parallel algorithm for selforganizing maps using mpi openmp based cluster bhavik patel department of computer engineering college of engineering pune pune 411 005, india yash tibrewal department of computer engineering. Study on high performance of mpibased parallel fdtd from. Topology optimization under nonlinear conditions contact and gasket material nonlinearities, definition and meshing of design space using an existing fe model, selection of relevant loading cases pretension and temperature, evaluation of filling ratio, design objective and weight. A safebet version which is designed for newcomers to fortran and mpi. Topology optimisation is implemented through the use of finite element method for analysis. Number of graph nodes must not be more than number of processors.
We propose a new mesh registration method that uses both 3d geometry and texture information to register all scans in a sequence to a common reference topology. We present an online approach to efficiently and simultaneously detect and track the 2d. Topology optimization of compliant mechanisms with. Topology optimization of electric machines based on topological sensitivity analysis p. In a graph, communication speed may increase if process addressing reordered by system. In order to obtain the routing table, we need ov rounds iteration until all the vertices are included in the cluster. Advanced mpi programming argonne national laboratory. Parametric image segmentation of humans with structural.
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