公开(公告)号：US20170132048A1

公开(公告)日：2017-05-11

申请号：US15265945

申请日：2016-09-15

申请人： FUJITSU LIMITED

发明人： Tamon SUWA

IPC分类号： G06F9/50 ,  G06F17/50 ,  G06F15/80

CPC分类号： G06F9/5066 ,  G06F15/80 ,  G06F17/5009 ,  G06F2217/16

摘要： A parallel computer that includes a plurality of nodes assigns to each of the nodes a partial region that is a division of a region in which a plurality of types of particles are distributed, and executes a plurality of programs for a particle simulation by each of the nodes. Then, according to a type of a processing-target particle of each of the plurality of programs and an execution time of each of the plurality of programs, the parallel computer determines a computation cost for each of a plurality of processing-target particles of each of the plurality of types. Subsequently, the parallel computer changes a position of a region boundary of the partial region according to the computation cost and the number of the processing-target particles of each of the plurality of types.

公开(公告)号：US20210003493A1

公开(公告)日：2021-01-07

申请号：US16902303

申请日：2020-06-16

申请人： FUJITSU LIMITED

发明人： KOHEI HATANAKA ,  Tamon SUWA ,  Masaki KAZAMA

IPC分类号： G01N15/10 ,  G06F30/25

摘要： Technique includes acquiring first contact data of first time, associated with first particle in first region; calculating first position data on particles in the first region at second time, and receiving second position data on particles in second region at the second time; detecting second particle being in contact with the first particle and in the first region at the first time and being in the first region at the second time; copying, when the first and second particles are in contact at the second time, displacement of the second particle from the first contact data to second contact data of the second time; detecting third particle being in the first or second region at the second time and in contact with the first particle; and copying, when the third particle is listed in the first contact data, displacement of the third particle to the second contact data therefrom.

公开(公告)号：US20160196373A1

公开(公告)日：2016-07-07

申请号：US14950373

申请日：2015-11-24

申请人： FUJITSU LIMITED

发明人： Tamon SUWA

IPC分类号： G06F17/50 ,  G06F17/10

CPC分类号： G06F17/5009

摘要： A processing unit determines, based on positions of a plurality of particles representing a continuum and positions of a plurality of boundary elements representing a boundary between a first region and a second region, whether each of the plurality of particles is located in the second region. Then, the processing unit calculates, for a particle located in the second region, a force toward the first region, based on a distance between the boundary represented by the plurality of boundary elements and the particle. Then, the processing unit analyzes motion of the plurality of particles while applying the force to the particle located in the second region.

摘要翻译： 处理单元基于表示连续体的多个粒子的位置和表示第一区域和第二区域之间的边界的多个边界元素的位置来确定多个粒子中的每一个是否位于第二区域中。 然后，处理单元基于由多个边界元素表示的边界与粒子之间的距离，计算位于第二区域中的粒子朝向第一区域的力。 然后，处理单元分析多个粒子的运动，同时向位于第二区域的粒子施加力。

公开(公告)号：US20140316596A1

公开(公告)日：2014-10-23

申请号：US14191919

申请日：2014-02-27

申请人： FUJITSU LIMITED

发明人： Tamon SUWA ,  Masaki Kazama

IPC分类号： G01R21/133

CPC分类号： G06F17/5009 ,  G06F2217/16

摘要： An information processing method includes: calculating, by a computer, a time differential of internal energy that corresponds to a coefficient and is based on radiative cooling, the coefficient corresponding to a degree of exposure of each particle in a collection of particles to a surface of a continuum represented by the collection of the particles; and calculating, by the computer, the internal energy after a unit time based on the time differential of the internal energy.

摘要翻译： 信息处理方法包括：通过计算机计算与系数对应的内部能量的时间差，并且基于辐射冷却，所述系数对应于颗粒集合中的每个粒子暴露于 由颗粒的收集代表的连续体; 并且由计算机根据内部能量的时间差计算单位时间之后的内部能量。

公开(公告)号：US20190108299A1

公开(公告)日：2019-04-11

申请号：US16151447

申请日：2018-10-04

申请人： FUJITSU LIMITED

发明人： Tamon SUWA ,  Masaki KAZAMA

IPC分类号： G06F17/50 ,  G06T13/60 ,  G06T15/08

摘要： A fluid simulating method includes extracting, based on positional information included in particle data of particles during a predetermined time period, a first particle with a predetermined value or less of distance from a fluid particle and a second particle with the predetermined value or less of distance from the first particle from among wall boundary particles related to a boundary with a wall. The method may also include setting a boundary condition of a pressure Poisson equation for calculating pressure to be applied to each of the particles, and calculating pressure to be applied to each of the particles, based on the extracted first particle and the extracted second particle. The method may also include calculating particle data of the particles during a next time period based on the calculated pressure.

公开(公告)号：US20170091353A1

公开(公告)日：2017-03-30

申请号：US15264918

申请日：2016-09-14

申请人： FUJITSU LIMITED

发明人： Masaki KAZAMA ,  Tamon SUWA ,  Keita Ogasawara

IPC分类号： G06F17/50 ,  G06F9/50

CPC分类号： G06F17/5009 ,  G06F9/5061 ,  G06F9/5066 ,  G06F2217/16

摘要： A non-transitory, computer-readable recording medium storing therein a particle simulation program causing a computer to execute a process includes when the computer simulates behavior of particles in a space having regions and subject to analysis, by processes of a predetermined number fewer than the regions, assigning the regions of the predetermined number, selected in descending order of a number of particles included in each of the regions to differing processes among the processes of the predetermined number; and sequentially assigning unassigned regions in descending order of the number of particles included in each of the unassigned regions among the regions, excluding the regions of the predetermined number assigned to the differing processes, to a process identified based on the number of particles included in the region already assigned to each of the processes of the predetermined number.

公开(公告)号：US20130166615A1

公开(公告)日：2013-06-27

申请号：US13772871

申请日：2013-02-21

申请人： FUJITSU LIMITED

发明人： Tamon SUWA

IPC分类号： G06F17/10

CPC分类号： G06F17/5009 ,  G01N3/30 ,  G01N3/32 ,  G01N19/02 ,  G01N2203/0214 ,  G06F17/00 ,  G06F2217/16

摘要： A computer-readable recording medium has stored therein a communication-path control program causing a computer to execute a process which includes receiving input of data including information of an influence range representing each of continuum particles when the continuum is represented as a particle, and data representing each micro-surface component, which includes information of a normal direction when a fixed boundary is represented as a set of minute regions; calculating a repulsive force of a normal direction of the micro-surface component, which acts on the continuum particle from each of the micro-surface components intersected with the influence range of the continuum particle; calculating a force from the fixed boundary acting on each of the continuum particles by adding the repulsive forces acting on each of the continuum particles from each of the micro-surface components; and analyzing the motion of the continuum, based on the force from the fixed boundary.

摘要翻译： 一种计算机可读记录介质，其中存储有通信路径控制程序，使得计算机执行一个处理，该处理包括当连续体被表示为粒子时，接收包括表示每个连续粒子的影响范围的信息的数据的输入，以及数据 表示每个微表面分量，其包括当固定边界被表示为一组微小区域时的法线方向的信息; 计算微观表面成分法向的排斥力，其作用于与连续粒子的影响范围相交的每个微表面组分的连续体颗粒; 通过从每个微表面组分添加作用于每个连续体颗粒的排斥力来计算作用于每个连续体颗粒的固定边界的力; 并根据固定边界的力量分析连续体的运动。

公开(公告)号：US20180023988A1

公开(公告)日：2018-01-25

申请号：US15619611

申请日：2017-06-12

申请人： FUJITSU LIMITED

发明人： Keita Ogasawara ,  Tamon SUWA

IPC分类号： G01F1/88 ,  G06F17/50 ,  B29C45/77

CPC分类号： G01F1/88 ,  B29C45/77 ,  B29C2045/776 ,  G06F17/5009 ,  G06F2217/16

摘要： A particle simulation program is disclosed. A computer forms a particle generation surface in a vicinity of an inflow port. The computer forms a particle disappearance surface representing a boundary to eliminate particles depending on the particle generation surface. The computer performs a particle simulation, in which the particles of fluid filled in a vessel are flowed out from the inflow port. The computer periodically generates the particles from the particle generation surface. The computer eliminates a particle crossing out of the particle disappearance surface.

公开(公告)号：US20140114588A1

公开(公告)日：2014-04-24

申请号：US13967468

申请日：2013-08-15

申请人： FUJITSU LIMITED

发明人： Tamon SUWA

IPC分类号： G01F1/76

CPC分类号： G01F1/76

摘要： A computer is caused to execute processes of: calculating a flow rate and a water level of a continuum at each point on a two-dimensional plane in a first region, on the basis of input data; expressing the continuum in a second region contained in the first region as an assembly of particles, and subjecting the state of the each particle to a three-dimensional analysis based on the calculated flow rate and water level.

摘要翻译： 使计算机执行以下处理：基于输入数据计算第一区域中的二维平面上的每个点处的连续体的流量和水位; 将包含在第一区域的第二区域中的连续体表示为颗粒的组合，并且基于计算的流量和水位使每个颗粒的状态进行三维分析。