I have some researchers who want to run OpenMP for multiprocessor machines, but minimum requirement for OpenMP is gcc 4.2.2.

Andrea

************************************************** Andrea Laack IS Manager Functional Imaging Research Center Medical College of Wisconsin 8701 Watertown Plank Road Milwaukee, WI 53226 414-456-4661

Steve Thompson wrote:

On Thu, 17 Dec 2009, Andrea Laack wrote:

...

Why is redhat version 5.3 running gcc version 4.3 and centos 5.4 running gcc version 4.1.2? When will gcc be upgraded on centos?

All of my 5.3 systems run 4.1.2 as well, per yum.

-s _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos

On Dec 17, 2009, at 1:07 PM, nate wrote:

Andrea Laack wrote:

...

Why is redhat version 5.3 running gcc version 4.3 and centos 5.4 running gcc version 4.1.2? When will gcc be upgraded on centos?

Looks like two different versions of gcc are available

CentOS: http://mirrors.kernel.org/centos/5/os/SRPMS/gcc-4.1.2-46.el5.src.rpm http://mirrors.kernel.org/centos/5/os/SRPMS/gcc44-4.4.0-6.el5.src.rpm

And a 3rd version for RHEL RHEL: http://mirrors.kernel.org/redhat/redhat/linux/enterprise/5Server/en/os/SRPMS... http://mirrors.kernel.org/redhat/redhat/linux/enterprise/5Server/en/os/SRPMS... http://mirrors.kernel.org/redhat/redhat/linux/enterprise/5Server/en/os/SRPMS...

So perhaps just the gcc43 package is missing from CentOS, but you can go to 4.4 if you want a newer version.

In any case, the gcc 4.1.2 on CentOS 5 supports openmp (use - fopenmp). It might require the libgomp package.

Tony Schreiner