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Re: [Help-gsl] Re: C/C++ speed optimization bible/resources/pointers nee
From: |
Jochen Küpper |
Subject: |
Re: [Help-gsl] Re: C/C++ speed optimization bible/resources/pointers needed, and about using GSL... |
Date: |
Fri, 27 Jul 2007 17:21:40 +0200 |
Twice as many floats vectorize per operation as doubles. Thus it
goes twice as fast. How much more evidence do you require?
Personally I do not need any -- I have to use double for precision
needs. Matrices are just to big and calculation paths too long.
Sometimes I wish I had a 16-byte-double Cray...
ICC is "free as in beer" for non-commercial use. If you're not
selling your software compiled with ICC, you can use it free of
charge.
This is not true.
For research in pure science, which is about non-commercial as it
gets, you are not allowed to use it -- because its your profession
and you are paid for it.
Again, it is fair from Intel to put up the line themselves, but
please do not claim something is free when it is not.
Greetings,
Jochen
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- [Help-gsl] C/C++ speed optimization bible/resources/pointers needed, and about using GSL..., Michael, 2007/07/27
- Re: [Help-gsl] C/C++ speed optimization bible/resources/pointers needed, and about using GSL..., Gordan Bobic, 2007/07/27
- [Help-gsl] Re: C/C++ speed optimization bible/resources/pointers needed, and about using GSL..., Lionel B, 2007/07/27
- Re: [Help-gsl] Re: C/C++ speed optimization bible/resources/pointers needed, and about using GSL..., Gordan Bobic, 2007/07/27
- Re: [Help-gsl] Re: C/C++ speed optimization bible/resources/pointers needed, and about using GSL..., Jochen Küpper, 2007/07/27
- Re: [Help-gsl] Re: C/C++ speed optimization bible/resources/pointers needed, and about using GSL..., Gordan Bobic, 2007/07/27
- Re: [Help-gsl] Re: C/C++ speed optimization bible/resources/pointers needed, and about using GSL...,
Jochen Küpper <=
- Re: [Help-gsl] Re: C/C++ speed optimization bible/resources/pointers needed, and about using GSL..., Gordan Bobic, 2007/07/27
- Re: [Help-gsl] Re: C/C++ speed optimization bible/resources/pointers needed, and about using GSL..., Marc Baaden, 2007/07/27