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A Little Story About GPUs
The Wheel of Reincarnation
The Wheel Today




1.5 turns around the wheel?
the display processor on the display processor
More than one turn around the wheel?




 stream processors → raster processor → display chip
The conclusion in 1968
The conclusion in 2008?
Asymmetric/heterogeneous multiprocessing is hard.
     (multiple memory models, different CPU char...
IAP09 CUDA@MIT 6.963 - Lecture 05: Wheel Of Reincarnation (Steven Johnson, MIT)
IAP09 CUDA@MIT 6.963 - Lecture 05: Wheel Of Reincarnation (Steven Johnson, MIT)
IAP09 CUDA@MIT 6.963 - Lecture 05: Wheel Of Reincarnation (Steven Johnson, MIT)
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IAP09 CUDA@MIT 6.963 - Lecture 05: Wheel Of Reincarnation (Steven Johnson, MIT)

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More at http://sites.google.com/site/cudaiap2009 and http://pinto.scripts.mit.edu/Classes/CUDAIAP2009

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Transcript of "IAP09 CUDA@MIT 6.963 - Lecture 05: Wheel Of Reincarnation (Steven Johnson, MIT)"

  1. 1. A Little Story About GPUs
  2. 2. The Wheel of Reincarnation
  3. 3. The Wheel Today 1.5 turns around the wheel? the display processor on the display processor
  4. 4. More than one turn around the wheel? stream processors → raster processor → display chip
  5. 5. The conclusion in 1968
  6. 6. The conclusion in 2008? Asymmetric/heterogeneous multiprocessing is hard. (multiple memory models, different CPU characteristics) But…serial CPUs aren’t getting faster But…most programs are serial and need a fast serial CPU But…1000 Pentium M’s (Intel Core) aren’t coming to desktops Natural tendency to few beefy CPUs + zillions of simple ones… GPGPU (Nvidia Tesla/AMD Firestream)? Cell processors? Intel Larrabee? Something else?
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