I've got a patch to fix this but no Internet access until later tonight - in the mean time can you try explicitly disabling c++ threads: --disable-cppthreads ?



On Mar 9, 2013, at 11:09 PM, "Jim Fonseca" <jefonseca@gmail.com> wrote:

Hi Ben,
Any update on this? I'm running into what I think is the same issue with undefined tbb references even though I am setting --disable-tbb. This is with libmesh-0.9.1pre from git this evening.


On Wed, Feb 27, 2013 at 11:06 AM, Kirk, Benjamin (JSC-EG311) <benjamin.kirk-1@nasa.gov> wrote:

On Feb 27, 2013, at 7:53 AM, <libmesh-users-owner@lists.sourceforge.net> wrote
> I have a user trying to configure libMesh on a Linux cluster but it keeps running into problems with TBB.  He's not alone as I have also had a few other reports of people who still receive error even after adding the --diable-tbb flag to the configure line.  Are we being overly-agressive when snooping for tbb?  I haven't really dived into this much yet but just wanted to see if anyone is aware of a quick fix.
> The compile errros are attached at the bottom of this thread.
> Thanks,
> Cody

checking /usr/include/tbb/task_scheduler_init.h usability... no
checking /usr/include/tbb/task_scheduler_init.h presence... no
checking for /usr/include/tbb/task_scheduler_init.h... no
checking whether the compiler supports std::thread... no
checking whether TBB supports tbb::tbb_thread… yes

Looks like the issue is me looking for std::thread and falling back to tbb:thread, which somehow is succeeding (intel compiler likely including it) and the test is being run even if --disable-tbb is passed.  I'll add some m4 foo to skip the tbb:thread fallback when TBB is turned off.


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Jim Fonseca, PhD
Research Scientist
Network for Computational Nanotechnology
Purdue University