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Octave for openSUSE: Difference between revisions
information about images and linear algebra libraries
(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. | |||