build:reqpkgs
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build:reqpkgs [2020/08/10 20:31] – [Linear Algebra] Xavier Gonze | build:reqpkgs [2020/08/10 20:32] (current) – [LibXC] Xavier Gonze | ||
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On many high performance computers, you will have access to optimized libraries (mkl, ESSL, ACML, OpenBLAS, | On many high performance computers, you will have access to optimized libraries (mkl, ESSL, ACML, OpenBLAS, | ||
- | ==== Fast Fourier Transforms ==== | + | ===== Fast Fourier Transforms |
Abinit has an internal FFT library made by Stefan Goedecker in the 1990s, which he then cleverly parallelized in the 2000s.\\ This is the default, but not the fastest FFT library abinit has access to. You want to link to external recent optimized versions. | Abinit has an internal FFT library made by Stefan Goedecker in the 1990s, which he then cleverly parallelized in the 2000s.\\ This is the default, but not the fastest FFT library abinit has access to. You want to link to external recent optimized versions. | ||
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The main library in wide use today is the FFTW3 which is very powerful, threaded, and optimized to death. | The main library in wide use today is the FFTW3 which is very powerful, threaded, and optimized to death. | ||
- | The vendor optimized mkl, ESSL and other libraries often provide versions of FFTW3 - use these as a priority | + | The vendor optimized mkl and other libraries often provide versions of FFTW3 - use these as a priority |
There exist other FFT libraries on the market, but abinit does not support them systematically.\\ Check the options of the configure script for more details. | There exist other FFT libraries on the market, but abinit does not support them systematically.\\ Check the options of the configure script for more details. | ||
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===== LibXC ===== | ===== LibXC ===== | ||
- | LibXC is a library implementing almost all known exchange correlation functionals.\\ | + | LibXC is a library implementing almost all known exchange correlation functionals.\\ |
You can download LibXC from its [[https:// | You can download LibXC from its [[https:// |
build/reqpkgs.1597084272.txt.gz · Last modified: 2020/08/10 20:31 by Xavier Gonze