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My presentation on the changing multicore landscape and how programming models are shifting to cope.
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Don DingeeOctober 20, 2010
Wind River Multicore Regional Conference
Solving the Multicore Maze:Today’s Challenges, Trends, and Solutions
The maze looks confusing
• What is a multicore processor capable of?• How does development have to change?• Will my application benefit from multicore?
“People don’t understand what they have.”- Tony King-Smith, Imagination Technologies
What you don’t know can hurt
Charts courtesy VDC, September 2010“NEXT GENERATION EMBEDDED HARDWARE ARCHITECTURES: Driving Onset of Project Delays, Costs Overruns, and Software Development Challenges”
Somebody is seeing the way
• SoCs• General purpose CPUs• Graphics processors (GPUs)• Network processors (NPUs)
Entering the maze is easy
Huge numbers of SoCs
Is this single core, or multicore?
One flavor of CPU
But wait, there’s more
Another flavor of CPU
GPU
1600 streams in this, latest has 3200
NPU
32 cores designed around the network interface
Now that we’re in the maze
• It’s not getting smaller, or simpler – but that’s creating disruptive opportunity• Integration of EDA, silicon, operating
systems, and tools providers is increasing• Competitive advantage = understanding
your goal and what your app is trying to do• There will still be multiple approaches and
tools, and no “magic bullet”
Understand the platform
Leverage the OS and runtime SW
Look around threading
Expose bugs dynamically
Looking deeper into threads
Hybrid approaches
Higher level middleware
So what, so what, …
• Range and speed of innovation is incredible• Embedded devices are connected life now
Smartphones everywhere
Lots of drivers here:• Reliable connection• User interface• Multimedia streaming• Secure transactions• More apps by the hour
Tablets taking over
• Just watch while most PCs get replaced in next couple years
• More space for multicore, battery means even more innovation coming
Digital home taking off
• TVs and STBs are gaining app content
• Watch 2 channels, record 2, plus over the top content stream
Appliances getting smarter
• Wake on data• Do the job• Be aware• Sleep
Eye in the sky
• More mission, but less room onboard
• Very dense and fast compute core requirements
In the network
• Deep packet inspection becoming mandatory
• Look at every packet in transit• Make very sophisticated
decisions based on content: security, priority, handling
What will you do next?
Multicore is your next career!• This is just as big as the transition from digital
logic to microprocessors• Or the transition from assembly to C• It will take some retraining, rethinking, redoing• The vendors get it and are actually ahead of the
customers in most cases• Gap will close fast as competitive forces take over
– just look at the applications we saw
Left to my own devices
@dondingee
www.linkedin.com/in/dondingee
www.embedded-computing.com
http://channels.opensystemsmedia.com/Multicore
