Octave for openSUSE: Difference between revisions
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(Pre-compiled binaries) |
(information about images and linear algebra libraries) |
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zypper ar http://download.opensuse.org/repositories/science/<openSUSE version>/ Science | zypper ar http://download.opensuse.org/repositories/science/<openSUSE version>/ Science | ||
zypper ref | |||
zypper in octave | zypper in octave | ||
There <openSUSE verion> is your version of openSUSE, for example {{codeline|openSUSE_13.1}}. | There <openSUSE verion> is your version of openSUSE, for example {{codeline|openSUSE_13.1}} | ||
===Linear algebra libraries=== | |||
openSUSE uses reference BLAS and LAPACK implementations by default, but ATLAS is usually much faster. You can switch it by update-alternatives mechanism: | |||
/usr/sbin/update-alternatives --config libblas.so.3 | |||
/usr/sbin/update-alternatives --config liblapack.so.3 | |||
Example: | |||
Selection Path Priority Status | |||
------------------------------------------------------------ | |||
* 0 /usr/lib64/libblas.so.3.4.2 50 auto mode | |||
1 /usr/lib64/atlas/libsatlas.so.3 20 manual mode | |||
2 /usr/lib64/atlas/libtatlas.so.3 20 manual mode | |||
3 /usr/lib64/libblas.so.3.4.2 50 manual mode | |||
===Image export and import=== | |||
GraphicsMagick++ library from openSUSE repositories was compiled with quantum depth 16 which limits reading and writing images to 16 bit. See more details on [[GraphicsMagick]] wiki page. |
Revision as of 18:28, 14 March 2014
Pre-compiled binaries
Binary packages for Octave are provided by all versions of openSUSE. These are the most well-tested binaries available and should work best for most users.
zypper in octave
If you want to use install latest stable version of Octave and Octave Forge packages, you can use Science repository.
zypper ar http://download.opensuse.org/repositories/science/<openSUSE version>/ Science zypper ref zypper in octave
There <openSUSE verion> is your version of openSUSE, for example openSUSE_13.1
Linear algebra libraries
openSUSE uses reference BLAS and LAPACK implementations by default, but ATLAS is usually much faster. You can switch it by update-alternatives mechanism:
/usr/sbin/update-alternatives --config libblas.so.3 /usr/sbin/update-alternatives --config liblapack.so.3
Example:
Selection Path Priority Status ------------------------------------------------------------ * 0 /usr/lib64/libblas.so.3.4.2 50 auto mode 1 /usr/lib64/atlas/libsatlas.so.3 20 manual mode 2 /usr/lib64/atlas/libtatlas.so.3 20 manual mode 3 /usr/lib64/libblas.so.3.4.2 50 manual mode
Image export and import
GraphicsMagick++ library from openSUSE repositories was compiled with quantum depth 16 which limits reading and writing images to 16 bit. See more details on GraphicsMagick wiki page.