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Présentation "Know the wind" - Big Data Analytics - Smarter Analytics Live - 5 juin 2012 - par Anders Rhod Gregersen - Vestas
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Know the wind
Big data analytics at Vestas Wind Systems A/S
Anders Rhod Gregersen
Senior specialist, Vestas Wind Systems A/S
5th of June 2012, Anders Rhod Gregersen, Vestas Wind Systems A/S
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Presentation Outline
• Introduction to Vestas
• Finding a good site and HPC
• Forecasting
• Usability
• Building HPC capability
• Road ahead
Vestas Wind Systems A/S 2
Introduction
What are we trying to achieve?
How do we do it?
Q&A
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Vestas Wind Systems A/S 3
Marked leader in Wind turbines
Wind only company
Install base approx. 50GW / 50.000 wind turbines
22.000 employees
World wide
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Why high performance data heavy computing?
Vestas Wind Systems A/S 4
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Why HPC and Big data?
Renewable vs base production
• Predictability
• Integration
Significant investment
What matters to the customer?
Vestas Wind Systems A/S 5
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The complexity of business case certainty
Vestas Wind Systems A/S 6
Site picture
Height contours
Complexity
Turbulence
Service Cost
Cost of Energy
Wind Resource
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Finding a good site
Traditional process:
Point measurements (met mast)
Point estimate of wind resource
Point estimate of turbulence
Drawbacks:
Costly
Time consuming
Point measurement of flow
No weather context
Vestas Wind Systems A/S 7
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Understand wind ressource
Hindcasting the weather
Very high area resolution
Very high time resolution
Unlike weather services, the model is sensitive to wind
Time series from turn of millenium onwards
Approx. 200 parameters
Wind measurements in context
Extreme events
Vestas Wind Systems A/S 8
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Understand wind turbulence
Vestas Wind Systems A/S 9
Complex vs simple terrain
Turbulence and fattigue
Point measurement of turbulence
Modeling via Computational Fluid Dynamics
Moving from point to flow
Wind shear
In-flow angles
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Flow over terrain
Vestas Wind Systems A/S 10
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Architecture
Vestas Wind Systems A/S 11
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Architecture overview
Compute:
1.306 compute nodes
2.612 Intel X5670 CPUs
15.672 X5670 cores
>34TiB RAM
>161TFLOPS
10.752 M2070Q cores
Interconnects:
4xQDR Infiniband (40Gb)
2:1 over-subscribed
Ethernet
Storage:
1.680 spindles
14 I/O servers
>20GB/s
Vestas Wind Systems A/S 12
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Primary memory
Vestas Wind Systems A/S 13
Modeling fluid flow means
Solving Navier-Stokes equeations which means
Memory bound code
On die memory controller
One bank, three ranks/CPU
Remote memory via Message passing interface (MPI)
MPI via Infiniband
Low latency / high bandwidth
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Secondary memory
Vestas Wind Systems A/S 14
GPFS – general parallel filesystem
Freedom in both bandwidth and capacity
Singular name space
I/O moves via Infiniband
Exposed to the OS as POSIX
Backup vs snapshots
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Analytics at Vestas
Vestas Wind Systems A/S 15
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Building database technology that scales beyond petabytes Use cases:
Point queries: user wants the full time series for the four adjacent points
Data exploration: meteorologist queries region or world for existence or frequency of phenomenon
Forensics: Engineer is doing a post-mortem on high frequency data from a wind turbine
Regular database/warehouse has problems scaling (conceptually/economically)
Vestas Wind Systems A/S 16
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Business challenge
What we have
200 parameters
Hourly measurements
Time series since 2000
What we need:
Relational database functionality
Fast point queries
Scalable queries
Vestas Wind Systems A/S 17
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Facts:
Nature of data:
Volume, Velocity
Assumption, all data time series
Assumption, common query full time series
Optimization: partition elimination
Optimzation: parameter elimination
Solution: a column based
Vestas Wind Systems A/S 18
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Enter IBM InfoSphere BigInsights
Partnership with IBM
Joint development with
IBM Almaden (research) and
IBM Silicon Valley Lab (productization)
Weekly meetings
Vestas Wind Systems A/S 19
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Advantages of a partnership: Software developed that matches our need
Software lifecycle in handled by IBM
Software productization
Vestas Wind Systems A/S 20
Title slide/end slide image dimensions:
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Height: 10.6 cm; Width: 25.4 cm
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Tip:
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snap to drawing guides when repositioned or
cropped.
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Copyright Notice
The documents are created by Vestas Wind Systems A/S and contain copyrighted material, trademarks, and other proprietary information. All rights reserved. No part of the documents may be reproduced or copied in any form or by any
means - such as graphic, electronic, or mechanical, including photocopying, taping, or information storage and retrieval systems without the prior written permission of Vestas Wind Systems A/S. The use of these documents by you, or
anyone else authorized by you, is prohibited unless specifically permitted by Vestas Wind Systems A/S. You may not alter or remove any trademark, copyright or other notice from the documents. The documents are provided “as is” and
Vestas Wind Systems A/S shall not have any responsibility or liability whatsoever for the results of use of the documents by you.
Thank you for your attention
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Usability challenge
HPC grew out of academia
What to expect from users?
Users range from PhDs
….to saleforce
One common tool for common users
….enables tracability
Point and click HPC for regular users
Terminal based interaction for the power user
Vestas Wind Systems A/S 22
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Building up HPC capability
Q1/2003 First commercial license for CFD Q4/2006 First cluster (40 cores) Q3/2007 CFD model validated.
Q4/2008 Second cluster (15 TFLOPS, TiBs) Q2/2011 Third cluster (3rd largest industrial HPC, PiBs)
Vestas Wind Systems A/S 23