Hi,
I am trying to install and use the cblas and lapack libraries. The atlas library which contains these libraries is already installed see below:
rpm -qlp atlas-3.8.4-2.el6.x86_64.rpm
> > /etc/ld.so.conf.d/atlas-x86_64.conf
> > /usr/lib64/atlas
> > /usr/lib64/atlas/libatlas.so.3
> > /usr/lib64/atlas/libatlas.so.3.0
> > /usr/lib64/atlas/libcblas.so.3
> > /usr/lib64/atlas/libcblas.so.3.0
> > /usr/lib64/atlas/libclapack.so.3
> > /usr/lib64/atlas/libclapack.so.3.0
> > /usr/lib64/atlas/libf77blas.so.3
> > /usr/lib64/atlas/libf77blas.so.3.0
> > /usr/lib64/atlas/liblapack.so.3
> > /usr/lib64/atlas/liblapack.so.3.0
> > /usr/lib64/atlas/libptcblas.so.3
> > /usr/lib64/atlas/libptcblas.so.3.0
> > /usr/lib64/atlas/libptf77blas.so.3
> > /usr/lib64/atlas/libptf77blas.so.3.0
> > /usr/share/doc/atlas-3.8.4
> > /usr/share/doc/atlas-3.8.4/README.RHEL

When compiling I get this error:
cc -o testblas testblas.c -L /usr/lib64/atlas/ -lcblas
testblas.c:19:19: error: cblas.h: No such file or directory

It seems that the header files have not been installed.
Adamo

Welcome to LQ.
Right, atlas-3.8.4-2.el6.x86_64.rpm is run time libraries only.
Every library used for compilation must be <name>-devel.

yum provides */cblas.h

# yum install atlas-devel

Suggest : Please use $ yum search atlas
.. to list all atlas packages :
atlas-sse-devel atlas-sse2-devel atlas-sse3-devel etc.

-

Hi,
Thanks for your help. I have installed the sse3.x86_64 but still no signe of the header files.

yum install atlas-sse3.x86_64

yum search atlas

atlas-sse3.x86_64 : ATLAS libraries for SSE3 extensions
atlas.x86_64 : Automatically Tuned Linear Algebra Software
atlas.i686 : Automatically Tuned Linear Algebra Software

Regards,

One more time : Please do $ yum provides */cblas.h

>>> atlas-devel atlas-sse-devel atlas-sse2-devel atlas-sse3-devel
! That's still run time libraries only !

For ss3 you will have to install 'atlas-sse3-devel.x86_64'.

-

Here is result of the command :
yum provides */cblas.h
Loaded plugins: product-id, refresh-packagekit, rhnplugin, subscription-manager
Updating Red Hat repositories.
rhel-x86_64-server-6/filelists | 16 MB 00:01
No Matches found

------
yum install atlas-sse3-devel.x86_64
Loaded plugins: product-id, refresh-packagekit, rhnplugin, subscription-manager
Updating Red Hat repositories.
Setting up Install Process
No package atlas-sse3-devel.x86_64 available.
Error: Nothing to do

# 5 .


Suggest : Ask Redhat how to enable the repository with 'atlas-*-devel'.