the amd fusion apu - muhammad shaaban's...
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The AMD Fusion APU
Bradley Wideman and Jack Stokes
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Outline
• Origin of the APU
• APU Design
• Other CPU / GPU Integration Technologies
• Performance
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The Origins of the APU
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Multicore Speedup Needs Parallelism
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Accelerated Processing Unit
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AMD Fusion
• AMD's first APU design• CPU and GPU on a single die
o Faster interconnectso Shared memory
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Current AMD Fusion Platforms
Brazos• Ultra-portable• Low power usage• Low thermal output
o TDP of 6-18W• 1-2 'Bobcat' cores• 80 Radeon cores
Lynx• Desktop/Mobile• High-performance• Higher power
usage• High thermal output
o 25-100W• 2-4 K10 cores• 160-400 Radeon
cores
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CPU Design (Llano)
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APU Design (Llano)
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Future APUs
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OpenCL
• Heterogeneous Computing Language• Portable
o Supports x86 CPUs, AMD GPUs, and nVidia CPUs• Similar to C
o No recursiono Fixed Length Arrays Only
• Requires Explicit Memory Managemento Example: Moving from main memory to GPU
memory• Other technologies:
o DirectCompute, CUDA
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Other CPU / GPU Integration Technologies
• Intel Sandy Bridge and Ivy Bridge
• Intel Larrabee / MIC
• Cell
• ARM SoC
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Intel Sandy Bridge and Ivy Bridge
• Sandy Bridge is currently available.• Ivy Bridge is scheduled to be available later
this year.• Hardware Dedicated to:o Graphicso Video Decoding and Encodingo Generation of Random Numbers (Ivy
only)
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Intel Larrabee / MIC
• Not yet released• Intended for High Performance Computing• Simplistic x86 cores• Powerful vector processing units• Could potentially be added to a future Intel
CPU.• Cache control instructions
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Cell
• Currently Available• Contains both traditional cores and vector
cores• Each vector core has a small amount of
memory that is separate from main memory.
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ARM SoC
• Integrates:o CPUso GPUso Memoryo Input / Output
• Integration is mainly for power consumption reasons, not performance reasons.
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Netbook Performance Comparision
AMD Fusion Intel Atom
CPU C-50 E-350 N570 D525
GPU Radeon 6250 Radeon 6310 GMA 3150 nVidia ION
Screen Size 10.1 inches 12.1 inches 10.1 inches 12.1 inches
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Netbook CPU Performance
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Netbook GPU Performance
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Netbook Power Comparision
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Desktop Performance Comparision
• AMD Fusion APUs:o A8-3850: 4x2.9GHz, 4MB L2 Cache, Radeon 6550Do A8-3500: 3x2.1GHz, 4MB L2 Cache, Radeon 6530Do A4-3300: 2x2.5GHz, 1MB L2 Cache, Radeon 6410D
• Intel CPUs:o Core i3-2130: 2X3.4 GHz, HyperThreading,
3MB L3 Cache, HD Graphics 2000o Core i3-2125: 2X3.3 GHz, HyperThreading,
3MB L3 Cache, HD Graphics 3000Pentium G620: 2X3.3 GHz, HyperThreading,
3MB L3 Cache, HD Graphics
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Desktop CPU Performance
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Desktop GPU Performance
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Power Usage
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Works CitedAMD Fusion:http://developer.amd.com/assets/apu101.pdfhttp://sites.amd.com/us/fusion/Pages/whitepaper.aspxhttp://sites.amd.com/us/Documents/48423B_fusion_whitepaper_WEB.pdfhttp://realworldtech.com/page.cfm?ArticleID=RWT062711124854http://www.pcper.com/reviews/Graphics-Cards/AMD-Fusion-System-Architecture-Overview-Southern-Isle-GPUs-and-Beyondhttp://www.pcmag.com/article2/0,2817,2399789,00.asp
OpenCL:http://developer.amd.com/zones/OpenCLZone/courses/Documents/Introduction_to_OpenCL_Programming%20(201005).pdf
Performance Comparison:http://www.xbitlabs.com/articles/mobile/display/amd-fusion-intel-atom.htmlhttp://www.xbitlabs.com/articles/cpu/display/amd-fusion-intel-core-i3_9.html
Other:http://spectrum.ieee.org/tech-talk/semiconductors/processors/with-denver-project-nvidia-and-arm-join-cpugpu-integration-racehttp://www.bit-tech.net/hardware/cpus/2011/10/10/all-about-ivy-bridge/6http://semiaccurate.com/2009/08/19/intel-use-larrabee-graphics-cpus/
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Questions?