[Lustre-discuss] Question about building Lustre, correct version of GCC

[Andreas Dilger]

On Feb 04, 2008  14:52 -0700, Craig Tierney wrote:
> I am trying to lustre-1.6.4.2 with my system and I am reading through
> the documentation to figure out how to it.  I am reading version 1.6_man_v1.9
> of the Operations manual.
> 
> On page 31, regarding compiler choice, it says:
> 
> Compiler Choice
> The compiler must be greater than GCC version 3.3.4. Currently,
> GCC v4.0 is not supported. GCC v3.3.4 has been used to successfully
> compile all of the pre-packaged releases made available by CFS, and it
> is the only officially-supported compiler. Your mileage may vary with
> other compilers, or even with other versions of GCC.
> 
> NOTE:
> GCC v3.3.4 was used to build 2.6 series kernels.
> 
> 
> So, which is it?  Is 3.3.4 the right compiler, or does it have to be
> "greater than" 3.3.4?

The right answer today is "Lustre is built with the kernel shipped with the
distro".  The documentation needs to be updated.

> Has anyone built Lustre using Centos 5.X?  I am trying to get Lustre working
> with 5.1, and have downgraded the kernel for simplicity.  Using a vanilla
> 2.6.18 kernel, I have been able to build lustre and mount some basic filesystems,
> but I have not tested it thoroughly enough to say it works.

Why not use the RHEL5 2.6.18 kernel?

Cheers, Andreas
--
Andreas Dilger
Sr. Staff Engineer, Lustre Group
Sun Microsystems of Canada, Inc.