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Starting Julia REPL
-------------------
Simply type `julia' in a shell to launch an interactive Julia session.
Full documentation and examples are available in the julia-doc package.
/usr/share/doc/julia/html/en/index.html
An Emacs mode for editing Julia source files and managing interactive sessions
is available in the ess package.
-- Sébastien Villemot <sebastien@debian.org>, Wed, 16 Oct 2013 16:07:45 +0200
Julia and Math Kernel Library (Intel-MKL)
-----------------------------------------
There are two ways to switch the BLAS/LAPACK implementation to MKL.
1. Switch the libblas.so.3 and liblapack.so.3 candidate with Debian's
alternatives system.
2. Rebuild Julia against MKL.
Alternatives System
^^^^^^^^^^^^^^^^^^^
You can switch e.g. libblas.so.3-x86_64-linux-gnu with galternatives.
$ sudo apt install galternatives
When not using OpenBLAS, you might encounter the following warning,
but it doesn't harm:
WARNING: Error during initialization of module LinearAlgebra:
ErrorException("could not load symbol "openblas_get_config":
/usr/bin/../lib/x86_64-linux-gnu/julia/libblas.so: undefined symbol: openblas_get_config")
Rebuild against MKL
^^^^^^^^^^^^^^^^^^^
To rebuild Julia against MKL, set the variable CUSTOM_MKL as 1 in
debian/rules, and rebuild the package. Please make sure that you
have intel-mkl installed before doing the custom build.
Brief Instruction for doing custom build against MKL:
0. Fetch the source package of julia and enter the source tree.
1. Install the build dependencies and helper scripts
$ sudo apt install devscripts
$ sudo apt build-dep julia
2. Modify debian/rules, setting CUSTOM_MKL to 1 .
3. Build, check, and install.
$ debuild -j4
$ debc
$ sudo debi
Known Problems about MKL
^^^^^^^^^^^^^^^^^^^^^^^^
1. When MKL is installed in the build environment, this test failure
may appear: https://github.com/JuliaLang/julia/issues/23264
-- Mo Zhou <cdluminate@gmail.com> Thu, 22 Sept 2018 09:00:00 +0000
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