Re: [Starpu-devel] StarPU on macos ?

[Nathalie Furmento <nathalie.furmento@labri.fr>]

Hi Pierre,

tests/datawizard/reclaim is trying to allocate 16 buffers of 64 Mb on 
the machine, that could explain why your machine is down.

You can either try to re-configure StarPU with the option 
--enable-slow-machine (to be given to configure), that will reduce the 
size of the buffers to 64 kb. You can also try to install hwloc first, 
and re-install StarPU, that will reduce the number of buffers being 
allocated.

Cheers,

Nathalie

On 07/02/2012 15:37, Pierre RAMET wrote:
> Hello,
> While I was waiting to add an old gcc compiler 4.4 on my server (4.6 is
> known to be not compatible with CUDA...), I have try to install StarPU
> on my laptop (macbook air with Lion)...
> No problem during the compilation of the trunk version (svn 5526), but
> during the "make check", it fails on :
> > PASS: datawizard/dining_philosophers
> > 5042 = 42 + 5000
> > 10042 = 5042 + 5000
> > PASS: datawizard/manual_reduction
> > PASS: datawizard/readers_and_writers
> > PASS: datawizard/unpartition
> > PASS: datawizard/user_interaction_implicit
> > Allocate 16 buffers and create 1000 tasks
> > ^Cmake[4]: *** [check-TESTS] Interrupt: 2
> > make[3]: *** [check-am] Interrupt: 2
> > make[2]: *** [check-recursive] Interrupt: 2
> > make[1]: *** [check] Interrupt: 2
> > make: *** [check-recursive] Interrupt: 2
> >
> > tthor-2:trunk ramet$ ps -ef | grep reclaim
> >    501 29764     1   0  3:19   ttys000    2:32.67
> > /Users/ramet/Work/starpu/trunk/tests/datawizard/.libs/reclaim
> >    501 29839  2234   0  3:21   ttys000    0:00.00 grep reclaim
> > tthor-2:trunk ramet$ kill -9 29764
> I need to stop the "reclaim" process that use 150% of the cpus but never
> end ...
> There is no hurry :)
> Pierre.
>
> PS: Xavier notices a regression in StarPU about performances between
> release 0.9 et 1rc ...
> PaStiX-over-StarPU with "audi" matrix, multicore kernels only :
> StarPU 0.9 : about 200s with 8 cores
> StarPU 1rc : more than 1000s with the same 8 cores