Installing Julia on Ubuntu12.04

[Dirk Fortmeier]

Hi,

A few days ago I installed julialang on my laptop (Ubuntu 12.04). Now, I want to install it on my desktop machine (Ubuntu 12.04 as well), but while running make this error appears:

$ make

...

...

/usr/bin/ld: cannot find -lgfortran

collect2: ld returned 1 exit status

make[4]: *** [../libopenblasp-r0.2.8.so] Error 1

make[3]: *** [shared] Error 2

*** Clean the OpenBLAS build with 'make -C deps clean-openblas'. Rebuild with 'make OPENBLAS_USE_THREAD=0 if OpenBLAS had trouble linking libpthread.so, and with 'make OPENBLAS_TARGET_ARCH=NEHALEM' if there were errors building SandyBridge support. Both these options can also be used simultaneously. ***

make[2]: *** [openblas-v0.2.8/libopenblas.so] Error 1

make[1]: *** [julia-release] Error 2

make: *** [release] Error 2

fortran is installed on this machine:

# apt-get install libgfortran3 gfortran

Reading package lists... Done

Building dependency tree       

Reading state information... Done

gfortran is already the newest version.

libgfortran3 is already the newest version.

The following packages were automatically installed and are no longer required:

  patchutils dpatch

Use 'apt-get autoremove' to remove them.

0 upgraded, 0 newly installed, 0 to remove and 5 not upgraded.

Any ideas?

Kind regards,

Dirk

[Rajn]

Hi,

On the Github (or perhaps on the download?) page of Julia there are instructions as to what you should do when 'make' fails. There is a procedure for BLAS failure mentioned there.

You have to make a new file if it already does not exist called Make.user and then type in those commands. Then do a 'make clean' or 'make cleanall' and then try 'make' again.

Maybe you already tried it?

[Dirk Fortmeier]

Hi, 

thanks for your suggestions, somehow I was fixed on fixing the missing gfortran. I did as you said, add added to Make.user:

USE_SYSTEM_BLAS=1

LIBBLAS=-lopenblas

LIBBLASNAME=libopenblas

make now produces:

precompile.jl

LoadError("sysimg.jl",234,LoadError("precompile.jl",11,ErrorException("error compiling _start: error compiling check_blas: error compiling blas_vendor: could not load module libopenblas: libopenblas: cannot open shared object file: No such file or directory")))

make[1]: *** [/data_yipyip2/fortmeier/julia/usr/lib/julia/sys0.bc] Error 1

make: *** [release] Error 2

Previously, I have installed these packages:

# apt-cache search openblas

libopenblas-base - Optimized BLAS (linear algebra) library based on GotoBLAS2

libopenblas-dev - Optimized BLAS (linear algebra) library based on GotoBLAS2

searching for the lib gave these results

$ find /usr/lib/ -name "libopenblas*"

/usr/lib/openblas-base/libopenblas.so

/usr/lib/openblas-base/libopenblas.so.0

/usr/lib/openblas-base/libopenblas.a

Maybe someone can help?

[Rajan Gurjar]

Your error message (the first post) suggests a solution. Did you try those?

It is surprising that same OS gives problems on desktop but runs on laptop.

I am not an expert and I too had lot of trouble installing Julia and it had to do with LLVM and certain processors. It seems certain processors can only install Julia if you have LLVM ver3.3 or higher. But not sure if your issue is similar.

I am sure some one will help you but I would first try what is being suggested in your error message: *** Clean the OpenBLAS build with 'make -C deps clean-openblas'. Rebuild with 'make OPENBLAS_USE_THREAD=0 if OpenBLAS had trouble linking libpthread.so, and with 'make OPENBLAS_TARGET_ARCH=NEHALEM' if there were errors building SandyBridge support. Both these options can also be used simultaneously. ***

[Dirk Fortmeier]

None of this worked for me, so I went back to my initial problem with gfortran.

I created a symlink 

# cd /usr/lib/x86_64-linux-gnu/
# ln -s libgfortran.so.3 libgfortran.so

and now it works. Will have a look at my laptop later ...

Thanks anyway :)