Dr. Andrew Burnett-Thompson
Reputation
Top tag
Next privilege 125 Rep.
Vote down
Badges
3
Impact
~1k people reached

  • 0 posts edited
  • 0 helpful flags
  • 17 votes cast
Feb
27
comment Why are we still using CPUs instead of GPUs?
Oh ok, so a GPU on-board a CPU will have zero bandwidth overhead moving data between the two. That's optimistic :)
Feb
27
comment Why are we still using CPUs instead of GPUs?
I'm surprised no-one in this thread has mentioned the overhead of sending data to the GPU - limited bandwidth over PCI-Express buses makes some parallel operations on a GPU vastly slower than were they performed on the CPU. One simple case can be seen where varying the size of an FFT made a significant difference in performance on GPU vs. CPU due to the overhead of sending data, setting up a context, reading back results: stackoverflow.com/a/8687732/303612 Smaller operations can be performed in-cache on CPUs, and the memory bandwidth is vastly superior to the current PCI-E architecture
Jan
23
comment Want to delete revisions from my SVN repository
Thanks for this - Doing this the tortoise SVN way was just what I needed to revert an erroneous commit :)
Sep
24
awarded  Autobiographer
Feb
24
awarded  Popular Question
Apr
9
awarded  Supporter
Feb
5
answered Installed SSD as second drive, BootMGR is missing after Norton restore (Windows 7)
Feb
5
comment Installed SSD as second drive, BootMGR is missing after Norton restore (Windows 7)
Newer versions of Norton are to blame. Too noddy. The old dos version that did a forensic clone worked wonders
Feb
4
asked Installed SSD as second drive, BootMGR is missing after Norton restore (Windows 7)