John Ashley Senior IBM Developer Relationship Manager NVIDIA Corporation This session gives you twice the content by incorporating two talks! First, we cover the current state of applications on OpenPOWER with an emphasis on GPU applications. Second, we cover the process of porting applications to OpenPOWER and the motivation to do so.

1. GPU applications being developed on
the Open POWER platform
September 2015
John Ashley
Sr. IBM Developer Relations Manager
jashley@nvidia.com
© 2015 OpenPOWER Foundation© 2015 OpenPOWER Foundation

2. Agenda
• OpenPOWER Refresher
• Software Ecosystem
• Resources
© 2015 OpenPOWER Foundation 2

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OpenPOWER Refresher
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• Moore’s law no longer
satisfies performance gain
• Growing workload
demands
• Numerous IT consumption
models
• Mature Open software
ecosystem
OpenPOWER, a catalyst for Open Innovation
• Rich software ecosystem
• Spectrum of power
servers
• Multiple hardware
options
• Derivative POWER chips
OpenPOWER is an open development community,
using the POWER Architecture to serve the evolving needs of customers.
Performance of
POWER architecture
amplified capability
Open Development
open software, open hardware
Collaboration of
thought leaders
simultaneous innovation,
multiple disciplines
Feeds back …
resulting in client choice
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New Open InnovationMarket Shifts

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In the beginning

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Fueling an Open Development Community

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Software Ecosystem
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• 50 IBM Innovation Centers
• Compelling PoCs
• Support for little endian applications
Over 1,600 Linux
ISVs developing
on Power
Big Data & Machine
Learning
Cloud Mobile Enterprise
Major Linux Distros
HPC
miniDFT
CTH
BLAST
Bowtie
BWA
FASTA
HMMER
GATK
SOAP3
STAC-A2
SHOC
Graph500
Ilog
CHARMM
GROMACS
NAMD
AMBER
RTM
GAMESS
WRF
HYCOM
HOMME
LES
MiniGhost
AMG2013
OpenFOAM

9. © 2015 OpenPOWER Foundation9 https://www.stfc.ac.uk/3583.aspx
£313 million collaboration to boost Big Data research in the UK
The research programme will leverage OpenPOWER high performance computing
innovations to enable complex analytics on massive amounts of data.
IBM contributions
• Latest data-centric and cognitive computing technologies,
including ‘Watson’ cognitive computing platform
• 24 IBM researchers to be based at the Hartree Centre
• Joint commercialisation of intellectual property produced in
partnership with STFC

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• In-memory distributed database
using GPUs for processing
• Order of magnitude gains:
• Performance over CPU solutions
• Power reduction
• Cost savings
• Anticipate order of magnitude gains
with POWER based NVLink solutions
in 2016
GPUdb in-memory Accelerated Database
Ultrafast ingest and analysis of billions of objects

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IBM, Mellanox, and NVIDIA awarded
$325M U.S. Department of Energy’s Super Computer bids
Two super computers for Oak Ridge and
Lawrence Livermore Labs in 2017. Sequoia (LLNL)
2012 - 2017
Mira (ANL)
2012 - 2017
Titan (ORNL)
2012 - 2017
Current DOE Leadership Computers
5x – 10x Higher Application Performance versus Current Systems
>100 PF, 2 GB/core main memory, local NVRAM,
Mellanox EDR 100Gb/s InfiniBand, IBM POWER CPUs, NVIDIA Tesla GPUs

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CORAL: Built for Grand Scientific Challenges
Fusion Energy
Role of material disorder, statistics,
and fluctuations in nanoscale
materials and systems.
Combustion
Combustion simulations to enable
the next gen diesel/bio- fuels to
burn more efficiently
Climate Change
Study climate change adaptation and
mitigation scenarios; realistically represent
detailed features
Nuclear Energy
Unprecedented high-fidelity radiation
transport calculations for nuclear
energy applications
Biofuels
Search for renewable and more
efficient energy sources
Astrophysics
Radiation transport – critical to astrophysics,
laser fusion, atmospheric dynamics, and
medical imaging

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Profile
Existing Code
(x86 + GPU)
Build on
Power
Profile New
Code
(Power + GPU)
Tune for
Power + GPU
“Ported”
Explicit architecture
dependencies must be
resolved!
When are we “done”?
Take advantage of different
performance ratios between
the systems
Many years of tuning in one
environment can result in
implicit performance
dependencies.
Currently targeting 66 codes
for GPU & Power
40 codes ported
26 codes in process
Power & GPU Scientific Applications Status
Power only – 113 ported, 58 in process

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Going back to that “done” question…
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Limiter FLOPS Memory IO
Serial <= ++ =
Parallel = = =
Expectations P8 & K80 vs
other GPU accelerated systems
Limiter FLOPS Memory IO
Serial = ++ ++
Parallel >= >= ++
• GPUs are identical, with very similar IO
• Amortizing PCIe transfer constrains
exploitable parallelism
• Overall expectation is for broadly similar
performance today
• GPUs are identical, but NVLINK is a ++
• Lower NVLINK transport penalty means
easier to offload FLOPs to GPU
• Overall expectation is for improved
performance tomorrow
Observed results tracking these expectations well
Expectations P8+ & Pascal vs
other GPU accelerated systems

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Resources
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Site Ox
Free On-demand cloud-based development platform
using Linux on POWER8 for 2 weeks
www.siteox.com
Lots of resources & support for Linux ISVs and Developers
IBM PartnerWorldTechnical Support
• IBM Innovation Centers
• Free access to Power Hardware
• Free porting assistance
• Free Eclipse-based development environment
www.ibm.com/partnerworld/wps/servlet/ContentHandler/pw_com_pwp_partnerw
orld-program
IBM Innovation Centers
All 50+ centers worldwide now support Linux on Power
One-stop for ISVs, developers
HW access, technical support, demos, toolkits, Hands-on labs
www.ibm.com/systems/power/software/linux/centers
IBM Power Development Cloud
Provide free access to Power hardware to ISVs for Porting
hwww.ibm.com/partnerworld/wps/servlet/ContentHandler/stg_com_sys_power-
development-platform
Regional Ecosystem Initiative – Recruiting Key
Solutions
Greater China, North America, Europe
Middleware and Industry Solutions
IBM DeveloperWorks
Technical resources, community, blogs, toolkits, How to
articles, beta code
www.ibm.com/developerworks/linux/
IBM Watson Developer’s Cloud
Access to IBM Watson for developing cognitive
computing applications
www.ibm.com/smarterplanet/us/en/ibmwatson/developers.html
IBM Migration Factory
Premier migration services for large applications
www.ibm.com/systems/power/migratetoibm/index.html

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IBM Innovation Centers Provide End-to-End Assistance to ISVs
For more information ibm.com/partnerworld/iic
Complete the engagement request form ibm.com/events/idr/idrevents/member/engagementrequest.action
For questions, send an email to iici@us.ibm.com
IBM Innovation Centers provide
training and one-to-one guidance
from building to marketing your
solution.
• Technical skills and hardware access across multiple
platforms, local or remote, at little or no cost for
migration to IBM platforms
• Qualify "Ready for" marks to broaden marketing reach
• Workshops, seminars, and more conducted by trained
subject matter experts.
All 50+ Innovation and Client Centers
worldwide support Linux on Power

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UNICAMP Brazil, SA
http://openpower.ic.unicamp.br/mini
cloud/index.html
Oregon State
North America
http://osuosl.org/services/powerdev
Brno University /
RedHat. Czech Republic
https://fit-rhlab.rhcloud.com
SuperVessel
Beijing, China
www.ptopenlab.com
IIT Bombay, India
3Q, 2015
HPC Center
University of Texas- TACC
3Q, 2015
OpenPOWER Open Software and University Cloud Environments
• OpenPOWER Platforms
• Open Stack Software
• University research
• Open Development &
Ecosystem Support
SuperVessel
Beijing, China
www.ptopenlab.com

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FOR MORE DETAILS
http://openpowerfoundation.org/wp-content/uploads/2015/03/Lin-Yonghua_OPFS2015_IBM_031315_final.pdf

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Questions? jashley@nvidia.com
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