[PATCH] parallelize g++ testing a bit more

[Rainer Orth]

Mike Stump <mikestump@comcast.net> writes:

> On Jun 17, 2011, at 10:47 AM, Nathan Froyd wrote:
>> I've done a lot of g++-only testsuite runs lately
>
> I think it is reasonable to have even more of them, say, if you have
> 16 cores and just test c++...  I wonder what the scaling is like as we
> approach larger N.  :-)

I've got a patch to do this, prompted by the use of UltraSPARC-T2
machines with 8 cores/8 strands which are quite slow on their own:

	[build, testsuite, v3] Increase gcc, g++, gfortran and libstdc++-v3 testsuite parallelism
        http://gcc.gnu.org/ml/gcc-patches/2010-07/msg01633.html

but haven't yet incorporated Jakub's comments.

	Rainer

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Rainer Orth, Center for Biotechnology, Bielefeld University