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1 © 2015 ANSYS, Inc. March 17, 2016
ANSYS Icepak R17.0 Update
2 © 2015 ANSYS, Inc. March 17, 2016
ANSYS Icepak R17.0 Update• Reduced Order Modeling模型降阶技术
• Krylov‐Projection based ROM克雷洛夫模型降阶技术• LTI ROM automation线性非时变系统降阶技术
• ECAD import• IDX Import capability IDX导入能力
• Solver Enhancements求解器增强• Support for Remote Simulation Manager (RSM) 支持使用RSM求解Icepak项目• NC Interface creation speedup (50X) 建立NC界面速度加快50倍• HPC performance improvements (6X) HPC并行改进6倍
• Data Exchange数据交换• Metadata and results export for EKM可以将元数据和结果输出EKM
• Trace Conductivity Modeling Enhancements布线导热率计算增强• Improved algorithm to capture serial and parallel physics 改进了布线导热率的算法
• Post Processing Enhancements后处理增强• Macros Enhancements宏增强
3 © 2015 ANSYS, Inc. March 17, 2016
• Automated Setup and ROM Construction
自动设置及降阶构造– Select inputs using UI– Run steady‐state solution– ROM creation in Icepak在Icepak里建立降阶模型
• Transient setup and ROM Evaluation
瞬态设置及ROM评估– Input transient loads and evaluationtimes– Icepak results data enables post‐processing in Icepak– 26X speedup加速26倍
ROM: 克雷洛夫模型降阶技术
4th order ROM, t = 100 sec 4th order ROM, t = 200 sec 4th order ROM, t = 400 sec
CFD, t = 100 sec CFD, t = 200 sec CFD, t = 400
4 © 2015 ANSYS, Inc. March 17, 2016
• LTI State‐space Characterization线性非时变状态空间方法– Automated model setup 模型自动设置– Run steady‐state solution 运行稳态计算– Automated transient parametric analysis based on inputs 基于输入参数自动进
行瞬态参数分析– LTI ROM creation in ANSYS Simplorer可以与Simplorer耦合
ROM: 自动线性非时变降阶技术
5 © 2015 ANSYS, Inc. March 17, 2016
• Import all electrical and mechanical components导入所有电子机械器件
• Support for component placement/selection支持器件位置重置
• Support for thermal properties支持热属性导入
• Grouping of components可以对器件规组
ECAD: 支持导入IDX格式
6 © 2015 ANSYS, Inc. March 17, 2016
Solver: 使用RSM管理器
• Support all configuration scenarios支持所有配置脚本– RSM Client, Manager and Compute Server can be deployed on 1, 2 or 3+ machines
RSM客户端、管理端及服务器可以布置在1、2、3个甚至更多的机器上
• Configuration setup using RSM UI on WB可以在WB之下配置RSM的设置– Component update through RSM通过RSM更新器件– Update Icepak design points through RSM更新Icepak设计点
• Customize Solver Execution Controller 定制求解控制器– Serial or Parallel execution
7 © 2015 ANSYS, Inc. March 17, 2016
• NC interface creation improvements result in up to 50X speedup
建立NC界面的速度提升50倍
• Advanced controls for linear solver 先进的线性求解器
• Shell conduction zones and solid zones parallel optimization同时对壳单元传导区域及固体区域进行优化
• Fluid/Solid load balancing improvements for scalability 稳定性更好
Solver: HPC并行能力提升
8 © 2015 ANSYS, Inc. March 17, 2016
服务器模型– HPC 并行能力• Icepak Model highlights: MCAD, ECAD, Non‐conformal Assemblies, 734 objects
734个器件
• Icepak Mesh highlights: 10.75 M cells using unstructured, non‐conformal, multi‐level, hex‐dominant meshing scheme划分了1075万网格
• Icepak Solution highlights: Steady state, Turbulent Flow, Conjugate Heat Transfer, Double Precision.
9 © 2015 ANSYS, Inc. March 17, 2016
• System Information系统信息– Intel Xeon CPU E5‐2690 2.9 GHz processors, 128 GB RAM– 2 processors– Running Windows 8.1 Enterprise (2013) Window8.1企业
版• HPC Test Summary HPC测试总结
– Trials were run in batch mode.批处理模型运行– Each trial was run for 250 iterations.每个实验计算250步– Overall run times used for measuring performance.使用总
的计算时间测量HPC能力• Overall run time includes file i/o, case setup and computations.
服务器模型– HPC 能力 – Test 1
10 © 2015 ANSYS, Inc. March 17, 2016
• Overall Run Time vs Number of Cores 总时间VS核数
服务器模型– HPC 能力 – Test 1
11 © 2015 ANSYS, Inc. March 17, 2016
• 加速 vs 核数
• Overall run time for 1 core taken as reference while quantifying speed‐up
1 2 4 8 12 16R17 1.0 1.9 4.1 6.3 8.1 10.3
0.0
2.0
4.0
6.0
8.0
10.0
12.0
Speed‐Up
Cores
R17
服务器模型– HPC 能力 – Test 1
12 © 2015 ANSYS, Inc. March 17, 2016
• Cluster Information集群信息– Ivy Bridge Processors, 2687 v2, 128 GB RAM per. – Dual 10 core processors per node (20 per node) – Running Windows 2012 R2 SP3, Infiniband Interconnect.
• HPC Test SummaryHPC测试总结– Job Scheduler utility in Icepak used to submit the runs to the cluster.将Icepak项目提交到集群。
– Trials were run in batch mode.批处理模型计算。– Each trial was run for 250 iterations.– Overall run times used for measuring performance.
• Overall run time includes file i/o, case setup and computations.
服务器模型– HPC 能力 – Test 2
13 © 2015 ANSYS, Inc. March 17, 2016
• Overall Run Time vs Number of Cores总时间VS核数
服务器模型– HPC 能力 – Test 2
14 © 2015 ANSYS, Inc. March 17, 2016
• 加速 vs 核数
• Overall run time for 1 core taken as reference while quantifying speed‐up
服务器模型– HPC 能力 – Test 2
15 © 2015 ANSYS, Inc. March 17, 2016
Icepak in EKM: 基于xml的数据• Export EKM metadata输出EKM元数据
– Model information 模型信息– Flow and Thermal boundary conditions边界条件– Solver configuration求解设置– Parametrics & optimization参数及优化
• Export Solution Reports & Image输出报告及图片
– Solution Overview Reports整体报告– PNG image exportPNG图片
• Utility to create XML files for legacy projects可以建立XML文件
16 © 2015 ANSYS, Inc. March 17, 2016
布线导热率计算的增强− 改进了计算布线导热率的算法− 使用一种顺序/并行的热网络方法
粗网格
细网格
17 © 2015 ANSYS, Inc. March 17, 2016
• 2D and 3D (Manhattan) plotting of powermaps
2D/3D的热耗分布云图– Heatflux, Power and Temperature variables supported支持热流、热耗及
温度– Results can be viewed pre and post‐solution可以在求解前后进行查看
Postprocessing: Powermaps后处理热耗分布云图
18 © 2015 ANSYS, Inc. March 17, 2016
ANSYS Icepak v17.0 – Macros Update宏更新• Menu Structure Overhaul菜单修正
• Macro Documentation Enhancements宏文档增强
• Die Characterization模拟封装Die的方法
• Compare Mesh Settings网格设置的比较
• Minimum Gap Detection最小间隙的检查
• Power Dependent Power热耗与热耗相关
• Delete Unused Materials删除无用材料
• TEC Parallel SolveTEC并行计算
• Debug Divergence改正离散的求解
• Copy Mesh Settings拷贝网格设置
• Export Geometry to ANSYS SpaceClaim将模型输出到Scdm
19 © 2015 ANSYS, Inc. March 17, 2016
Menu Structure Overhaul菜单修正• For ease‐of‐use, the macro menu has been alphabetized and reorganized:
宏菜单被重置,以方便使用− Geometry几何− Modeling模型− Post Processing后处理− Productivity高效
20 © 2015 ANSYS, Inc. March 17, 2016
Macro Documentation Enhancements文档的增强• The documentation for macros has seen substantial improvements.
改进了宏的文档
• The following macros now have detailed instructions on usage:− Power Dependent Power 热耗与热耗相关− Transient Temperature Dependent Power热耗与时间、温度相关− Debug Divergence改正离散的求解
• Updated screenshots and menu paths to reflect the new macro menu structure.
• All macros have a brief description that cover main functionality.
所有宏的 功能有简单描述。
• The documentation for TEC macros was updated to reflect recent enhancements.
TEC的文档被更新。
21 © 2015 ANSYS, Inc. March 17, 2016
Die Characterization Die的方法• Creates an array of source objects on a die block在一个Die上建立
多个Source
• Deletes current parameters and generates new parametric trials for the source objects (by column option) and solves the trials
删除当前的参数,建立新参数工况,并进行参数化计算。
22 © 2015 ANSYS, Inc. March 17, 2016
Compare Mesh Settings网格设置比较• Compares mesh settings in the Global Mesh panel and Local Assembly panels, before and after making changes 对整体网格和局部网格的设置进行比较。
• Outputs the mesh setting changes in a separate file对 网格设置单独输出
Output InformationMacro Panel
23 © 2015 ANSYS, Inc. March 17, 2016
Primitive Misalignment Check检查模型不对齐• Misalignments are a significant cause of bad meshes and divergence.
模型不对齐是导致Bad网格及求解发散的重要原因。
• Macro detects and reports object misalignments to user− custom misalignment tolerance specification allowed− “Full Model” or “Selected Assembly” search options available
• After running macro, user can either 运行后可以− fix misalignments, or修复不对齐− select appropriate Mesh “Minimum Gap” values选择合适的最小间隙
24 © 2015 ANSYS, Inc. March 17, 2016
Power Dependent Power热耗与热耗相关• Simulation of steady/transient operating conditions by dynamically controlling power of a source ( ) based on power consumed by remote sources ( ).通过远处的热耗动态调正目标热源的热耗。
• New version:− Supports up to 20 target sources.支持20个目标热源− Works with compiled library and no need for Visual Studio.− Compatible with Windows OS.
Target Source #1∝
Remote Source #1 Remote Source #2 Remote Source nRemote Source #2
Target Source #2∝
Target Source #20∝
P = Power C = Baseline power ∝ = Multiplier coeff.i = Source index n = number of remote sources t = Target s = Source
25 © 2015 ANSYS, Inc. March 17, 2016
Delete Unused Materials删除无用材料• When users merge many models, old materials that are no longer used can accumulate in the model tree.当用户合并模型时,旧的材料会在模型树下累积。
• This macro searches for all materials used in the model both in the active and inactive nodes. 宏命令可以寻找模型里所有的材料。
• Materials are deleted only when they are not used anywhere in the model, and they are not library materials. 将会删除模型中不使用的材料。
• Output is written to the message window:输出窗口显示如下:
26 © 2015 ANSYS, Inc. March 17, 2016
TEC Parallel Solve TEC并行计算• On Windows machines, the Run TEC can now use parallel solving.
在Window系统下,TEC可以并行计算求解。
• Other functionalities remains same.其他功能相同。
27 © 2015 ANSYS, Inc. March 17, 2016
Debug Divergence改正离散的求解• This new feature in Debug Divergence allows users to debug the manually terminated diverged solutions.允许用户追踪引起发散的错误网格。
• The macro takes solution ID as an input. If the solution is not loaded, the macro prompts user to load solution using “Load Solution ID” function.将求解的ID作为输入。如果求解没有加载,宏将使用Load Solution ID加载计算结果。
• If the user‐specified solution ID has residuals more than the specified value from “Solution Termination Criteria” from macro panel, it creates the postprocessing objects to debug the solution.如果用户指定的ID残差数值超过Solution Termination Criteria,Icepak将对此计算结果进行相应后处理 的显示 ,以查找引起计算发散的网格。
Solution Termination Criteria计算终止标准
Debug Diverged Solution
28 © 2015 ANSYS, Inc. March 17, 2016
Copy Mesh/Slack Settings for Assemblies拷贝Mesh/非连续性网格slack的设置
• Can copy mesh settings from one NC assembly to multiple NC assemblies.
可以拷贝Assembly的网格设置。
• Macro allows to copy either only slack values or all mesh settings.
允许将一个Slack的数值拷贝到其他所有的网格设置。
• Message displayed in console after successful copy.
成功拷贝后,窗口将显示相应的信息。
Option to Copy Slack Option for Full Settings
29 © 2015 ANSYS, Inc. March 17, 2016
Export Geometry to ANSYS SpaceClaim可以将几何模型输出到SCDM
• Icepak geometry can be exported to *.obj format.
Icepak几何可以被输出为*.obj 的文件。
• The *.obj files can be read into ANSYS SpaceClaim.SCDM可以读入*.obj
文件。