ANSYS 16.0 高性能计算技术 - for CFD & FEA Applications

Transcription

1 ANSYS 16.0 高性能计算技术 - for CFD & FEA Applications 李占营 / 高级应用工程师 2015 ANSYS, Inc. 1

2 Outline 概述 High-Performance Computing Brief Intro 简介 R16.0 Update on HPC Features & Capabilities 新功能 Optimized for latest HPC architectures Parallel performance & scaling Support HPC Resources Anywhere HPC Hardware Selection Workstation 硬件选择 HPC Case Studies 应用案例 2015 ANSYS, Inc.

3 Realize Your Product Promise High-Performance Computing Brief Intro

4 High-Performance Computing - HPC Defined High Performance Computing (HPC) at ANSYS: An ongoing effort designed to remove computing limitations from engineers who use computer aided engineering in all phases of design, analysis, and testing. It is a hardware and software initiative! Recent advances Multi-core processors Large amounts of RAM SSDs Hardware accelerators Graphics Processing Units (GPUs) from NVIDIA and AMD Intel Xeon Phi coprocessors (previously called Intel MIC) 2015 ANSYS, Inc.

5 High-Performance Computing - Typical HPC Growth Path Desktop User Workstation and/or Server Users Cluster Users 2015 ANSYS, Inc.

6 High-Performance Computing - Key Enabler for Enhanced engineering productivity Accelerate simulation throughput Consider more design variants Make more efficient decisions earlier in the product development cycle Ensure robust design Higher-fidelity insight into product performance! Assess larger, more detailed models Consider more complex physics From single component to system innovations 2015 ANSYS, Inc. 6 Image courtesy of Timo Krappel, IHS, Universität Stuttgart and Voith Hydro Holding GmbH

7 HPC Features & Capabilities - R16.0 Update - Realize Your Product Promise

8 Be Highly Optimized to Run Fast on the Latest HPC Architectures ANSYS Features & Capabilities ANSYS Mechanical 16.0 demonstrates 20-40% performance gains on Intel s latest Haswell processor vs. Sandy Bridge processor. ANSYS Mechanical 16.0 supports solver computation on Intel Xeon Phi coprocessors. Adding 1 Phi to 1-8 CPU cores leads to an average speedup of 1.8 times, particularly for bulkier models. ANSYS Fluent, HFSS, Mechanical and Polyflow supports solver computation on NVIDIA GPUs. This can lead to a speedup of up to 2.5 times. Customer Benefits Accelerate your simulation throughput Get more insight into product performance Allow you to evaluate more product design ideas Better utilization of hardware, software licenses, and people. Engineers spend more time analyzing results, leading to improved product understanding ANSYS, Inc. 8

9 Optimized for Latest HPC Architectures ANSYS Fluent 16.0 ANSYS Features & Capabilities Background: ANSYS Fluent 14.5 was the first commercial CFD program to support NVIDIA GPUs It was limited to shared-memory parallelism, single GPU per node only NVIDIA GPU support Since R15 full multi-gpu, multinode support in distributedmemory mode Since R16 user control to pick and choose which equation to run on GPU 9 Jobs/day 48 CPU cores Higher is Better 27 Jobs/day 48 CPU cores + 4 Tesla K80s Simulation productivity Truck Model External aerodynamics 14 million cells Steady, k-ε turbulence Coupled PBNS, DP Intel Xeon E5-2697v2; 48 CPU cores on 2 nodes 4 Tesla K80 GPUs

10 Optimized for Latest HPC Architectures ANSYS Mechanical 16.0 ANSYS Features & Capabilities Optimized for Intel Xeon E5 v3 processors: ANSYS Mechanical 16.0 performs well on the latest Intel processor architecture Haswell processor-based system is 20% to 40% faster than Sandy Bridge processorbased system for a variety of benchmarks ANSYS, Inc. June 11, 2015

11 Optimized for Latest HPC Architectures ANSYS Mechanical 16.0 ANSYS Features & Capabilities Background: ANSYS Mechanical 15.0 was the first commercial FEA program to support Intel Xeon Phi coprocessor It was limited to shared memory parallelism (SMP) on Linux only Intel Xeon Phi coprocessor support R16 now supports distributed memory parallelism (DMP) and Windows Speedup core 2 cores 4 cores 8 cores 16 cores ANSYS, Inc. June 11, No Xeon Phi Xeon Phi

12 Optimized for Latest HPC Architectures ANSYS Mechanical 16.0 ANSYS Application Examples Courtesy of HP ANSYS, Inc. June 11, 2015

13 Optimized for Latest HPC Architectures ANSYS Mechanical 16.0 ANSYS Application Examples 371 Jobs/day V15sp-4 Model V15sp-5 Model 2.3x Higher is Better 247 Jobs/day Turbine geometry 3.2 million DOF SOLID187 elements Static, nonlinear analysis Sparse direct solver 159 Jobs/day 135 Jobs/day 1.8x Ball grid array geometry 6.0 million DOF Static, nonlinear analysis Sparse direct solver 8 CPU cores 6 CPU cores + K80 GPU 8 CPU cores 6 CPU cores + K80 GPU ANSYS, Inc. June 11, 2015 Distributed ANSYS Mechanical 16.0 with Intel Xeon E5-2697v2 2.7 GHz 8-core CPU; Tesla K80 GPU with boost clocks.

14 Deliver Outstanding Parallel Performance & Scaling at an Ever Increasing Scale of Parallelism ANSYS Features & Capabilities A continuous software development focus on HPC enabling parallel improvements made release by release - also at R16.0. ANSYS solvers are highly optimized to run fast and deliver outstanding parallel scaling at an increasing scale of parallelism! Customer Benefits Reduced time to solution of your current models by leveraging more cores. Be less constrained by hardware limitations because bigger models can be sped up at your existing compute capacity. As HPC evolves into the future, ANSYS is the right choice to sustain the software investment that is required to stay ahead ANSYS, Inc. 14

15 Improved Parallel Performance & Scaling ANSYS Fluent 16.0 ANSYS Features & Capabilities Improved parallel robustness: Improved handling of poor mesh numerics o New cell quality-based criteria considering both orthogonal quality and equiangle skewness Parallel check: o Inspect system usage, interconnect speeds and load balance Enhanced automatic handling of AMG divergence Cache flush o Automatically checks for cache file buildup and warns users of potential performance impact Improved start-up and run-time robustness of compressible flow numerics o SIMPLEC, PISO o Multiphase flows o User-defined compressible gas/liquid Example problematic VOF case that previously diverged, now shows smooth convergence with improved poor mesh numerics treatment in R ANSYS, Inc. June 11, 2015 Mixture multiphase case showing significantly improved convergence with new numerics for compressible multiphase flow

16 Improved Parallel Performance & Scaling ANSYS CFX 16.0 ANSYS Application Example Solver Scalability R&D Industrial Benchmark: 6-Stage Axial Compressor 13m nodes, 14 domains, 12 mixing planes o 256 cores approx. 50,000 nodes/core Reduction in solver wall clock with default settings over recent releases ANSYS, Inc. June 11, 2015

17 Improved Parallel Performance & Scaling ANSYS Mechanical 16.0 ANSYS Features & Capabilities Distributed ANSYS Enhancements: Improved the domain decomposition step o Better load balancing for domains o Faster performance at higher core counts Added support for inertia relief (IRLF, 1) o Allows for improved performance by using Distributed ANSYS Added support for mode-superposition method in harmonic and transient analyses o Includes both the reduced order calculations as well as the expansion pass o Includes support for modal restart analyses ANSYS, Inc. June 11, 2015

18 Improved Parallel Performance & Scaling ANSYS Mechanical 15.0 vs ANSYS Application Examples At Release 15.0 NOW: At Release ANSYS, Inc. June 11, 2015

19 Supporting HPC Resources Anywhere Engineering Knowledge Manager (EKM) Users (Remote/Mobile) ANSYS EKM Web/Mobile UI Enterprise datacenter or cloud Browser Access Batch Jobs Interactive Jobs Remote Display HPC Cluster Work in Process Data Management Graphics Server Mobility & Remote Access Web & Mobile UI Interactive Remote Display with 3D Graphics Detach/Re-attach IP Protection Knowledge Management Best Practices Search & Retrieve Light Weight Visualization Security & Access Controls Remote Job Management Job Submission Templates Remote Monitoring Access to Interactive Controls Support for Leading Schedulers and Resource Managers ANSYS, Inc. June 11, 2015 Open Platform: Supports ANSYS and 3 rd Party Applications

20 Supporting HPC Resources Anywhere Engineering Knowledge Manager (EKM) ANSYS Features & Capabilities ANSYS EKM 16.0 is better than ever: Improved HPC support o Simplified job submission o Launch, monitor, track and control jobs from anywhere Faster file transfers Built-in Application Launcher templates o Launch and use applications remotely o Support MAPDL, Fluent, Electronics New, easy-to-use web front end o Access from many clients: Workbench, web browsers, smartphones, tablets o Access control & permissions at any level can be easily set up o Easier organization of data as per user requirements o 3D CAE visualization ANSYS, Inc. June 11, 2015

21 HPC Case Studies Realize Your Product Promise

22 HPC for Avoiding Expensive Design Changes While Increasing Operational IT Efficiency Business Initiative: Avoid Costly Design Changes Eliminate the use of thermal sensors on prototype engines by computationally expensive simulations Because HPC was at maximum capacity, outsource simulation workload to the cloud Customer Success Factors Optimized the entire cooling and sealing system design in the early stages of the product development process By outsourcing HPC, computing resources were elastically provisioned and released. Key Results Engineers were able to expand or shrink HPC capacity as needed, thus increasing their operational IT efficiency and better utilizing HPC resources Growth Reduced simulation time by 80% Profit Earlier design changes at lower costs Because of the near-linear scalability of Fluent, running the coupled fluidstructural simulation on an HPC cluster in the cloud was five times faster wallclock time than running the problem on a local workstation." Marius Swoboda Head of Design Systems Engineering Rolls-Royce Germany

23 HPC for Bringing New, Better Offshore Equipment Products Faster to Market Business Initiative: Reducing Time to Market Quickly develop a steerable conductor for offshore drilling that can provide real-time accurate positioning Customer Success Factors Using ANSYS Mechanical, custom cylinders costing $160,000 each could be replaced by off-the-shelf parts that cost only $7,000. ANSYS HPC was critical in meeting the delivery-time requirements of this project. Key Results Cognity was able to complete the design in only five months, approximately 70 percent less time than would have been required using conventional methods Growth Reduced design time by 70% Profit Cost reduction by 95% per part Parallel processing makes it possible to evaluate five to 10 design iterations per day, enabling us to rapidly improve the design." 2015 ANSYS, Inc. Ray Younger Managing Director Cognity Limited

24 HPC for Enhanced Insight into Critical Scenarios and Complex Operations Business Initiative: Increase Design Fidelity Overtake technological challenges on flow assurance and subsea oil processing present on the new pre-salt oil fields Better understand the sand transportation inside kilometers long production lines Customer Success Factors Intensive investments on the HPC infrastructure expansion at CENPES are enabling lots of new simulation possibilities Physical insights can guide the design of upstream processing systems at oil industry. Key Results Engineers were able to virtually reproduce critical scenarios and complex operations of upstream processing systems in the oil industry. Profit Higher-fidelity insight in upstream processes Petrobras relies on ANSYS software for its superior parallel scalability, together with advanced multiphase models and dynamic meshing." 2015 ANSYS, Inc. Carlos Alberto Capela Moraes Technical Consultant CENPES (Petrobras R&D Center)

25 HPC for Minimizing Solution Time While Enabling Faster Analysis of Potential Failure Business Initiative: Save Maintenance Costs Accurately predict if and when each part in a particular jet engine needs to be replaced or serviced Improve safety by treating each engine based on its own unique history Customer Success Factors Use finer models to accurately capture lifelimiting locations Use HPC to reduce solution time from weeks to days, days to hours. Key Results External customers service departments can faster evaluate the need for repairs and replace and maintain parts only when necessary Growth Reduced simulation time by 75% Profit More parts changed less frequently With Volvo Aero s LTS relying on ANSYS software, external customers service departments can replace and maintain parts only when necessary and take that benefit right to the bank." Magnus Andersson System Owner for Life Engine Volvo Aero 2015 ANSYS, Inc. 25

26 Realize Your Product Promise HPC Hardware Selection Workstation References

27 HP Workstation recommendations ANSYS Fluent 16.0 and CFX 16.0 HP Z420 Intel Xeon E v2 8-Core 3.0/4.0, 64GB memory, SSD, NVIDIA Quadro K600 HP Z620 Intel Xeon E v2 16-Core 3.3/4.0, 64GB memory, SSD, NVIDIA Quadro K2000 HP Z820 Intel Xeon E v2 24-Core 2.7/3.5, 64GB memory, SSD, NVIDIA Quadro K2000 NVIDIA GPU Compute Options Z420 (600W) Z620 (800W) Z820 (1125W) Tesla K40 Max 1 Max 2 Tesla K20c Max 1 Max 1 Max 2 Quadro K6000 Max 1 Max 1 Max 2

28 HP Workstation recommendations ANSYS Mechanical 16.0 HP Z420 Intel Xeon E v2 6-Core 3.7/4.0, 64GB memory, SSD RAID0, Quadro K600 HP Z620 Intel Xeon E v2 16-Core 3.3/4.0, 96GB memory, SSD RAID0, Quadro K2000 HP Z820 Intel Xeon E5-2687W v2 16-Core 3.4/4.0, 128GB memory, SSD RAID0, Quadro K2000

29 HP Workstation family ANSYS 16.0 Pre-Processing and Post-Processing HP Workstation Intel Processor(s) # CPU Cores Max Memory GB Graphics HP Z1 G2 Xeon E3-1200v NVIDIA Quadro Core i3, i5 2, 4 HP Z230 Xeon E3-1200v AMD FirePro Core i5, i7 4, 4 NVIDIA Quadro HP Z420 Xeon E5-1600v2 4, 6, 8 64 AMD FirePro Xeon E5-2600v2 8 NVIDIA Quadro HP Z620 Xeon E5-1600v2 4, 6, 8 96 AMD FirePro Xeon E5-2600v2 4, 6, 8, 10, 12 NVIDIA Quadro HP Z820 Xeon E5-2600v2 4, 6, 8, 10, AMD FirePro NVIDIA Quadro HP ZBook 14 Core ULT i5, i7 2, 2 16 AMD FirePro HP ZBook 15, 17 Core M i5, i7 2, 4 32 NVIDIA Quadro

30 Thank you 2015 ANSYS, Inc. 30