On Sat, 14 Feb 2015 19:47:17 +0100
Alessandro Barracco <[email protected]> wrote:

> Thank for fast reply. But OpenCL is not cuda (and haven't the same
> performances) 

Actually OpenCL is not Cuda but the OpenCL driver for nvidia hardware declares 
itself as:

  Platform Version:                              OpenCL 1.1 CUDA 6.5.33
  Platform Name:                                 NVIDIA CUDA
  Platform Vendor:                               NVIDIA Corporation

The difference in speed is still to be proven (above the error bar)

> and udacity is a web service while I need a printed book.

Udacity offers online courses ... in a couple of hours you get bootstrapped.
I guess it would be faster than reading a book. 
If you want a book, print the documentation of the nvidia SDK.

-- 
Jérôme Kieffer
Data analysis unit - ESRF

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