Downsizing the array, up to 4GB, valgrind gives many warnings reported in the attached file.
2012/9/6 Gabriele Fatigati <g.fatig...@cineca.it> > Sorry, > > I used a wrong hwloc installation. Using the hwloc with the printf > controls: > > mbind hwloc_linux_set_area_membind() fails: > > Error from HWLOC mbind: Cannot allocate memory > > so this is the origin of bad allocation. > > I attach the right valgrind output > > valgrind --track-origins=yes --log-file=output_valgrind --leak-check=full > --tool=memcheck --show-reachable=yes ./main_hybrid_bind_mem > > > > > > 2012/9/6 Gabriele Fatigati <g.fatig...@cineca.it> > >> Hi Brice, hi Jeff, >> >> >Can you add some printf inside hwloc_linux_set_area_membind() in >> src/topology-linux.c to see if ENOMEM comes from the mbind >syscall or not? >> >> I added printf inside that function, but ENOMEM does not come from there. >> >> >Have you run your application through valgrind or another >> memory-checking debugger? >> >> I tried with valgrind : >> >> valgrind --track-origins=yes --log-file=output_valgrind --leak-check=full >> --tool=memcheck --show-reachable=yes ./main_hybrid_bind_mem >> >> ==25687== Warning: set address range perms: large range [0x39454040, >> 0x2218d4040) (undefined) >> ==25687== >> ==25687== Valgrind's memory management: out of memory: >> ==25687== newSuperblock's request for 4194304 bytes failed. >> ==25687== 34253180928 bytes have already been allocated. >> ==25687== Valgrind cannot continue. Sorry. >> >> >> I attach the full output. >> >> >> The code dies also using OpenMP pure code. Very misteriously. >> >> >> >> 2012/9/5 Jeff Squyres <jsquy...@cisco.com> >> >>> On Sep 5, 2012, at 2:36 PM, Gabriele Fatigati wrote: >>> >>> > I don't think is a simply out of memory since NUMA node has 48 GB, and >>> I'm allocating just 8 GB. >>> >>> Mmm. Probably right. >>> >>> Have you run your application through valgrind or another >>> memory-checking debugger? >>> >>> I've seen cases of heap corruption lead to malloc incorrectly failing >>> with ENOMEM. >>> >>> -- >>> Jeff Squyres >>> jsquy...@cisco.com >>> For corporate legal information go to: >>> http://www.cisco.com/web/about/doing_business/legal/cri/ >>> >>> >>> _______________________________________________ >>> hwloc-users mailing list >>> hwloc-us...@open-mpi.org >>> http://www.open-mpi.org/mailman/listinfo.cgi/hwloc-users >>> >> >> >> >> -- >> Ing. Gabriele Fatigati >> >> HPC specialist >> >> SuperComputing Applications and Innovation Department >> >> Via Magnanelli 6/3, Casalecchio di Reno (BO) Italy >> >> www.cineca.it Tel: +39 051 6171722 >> >> g.fatigati [AT] cineca.it >> > > > > -- > Ing. Gabriele Fatigati > > HPC specialist > > SuperComputing Applications and Innovation Department > > Via Magnanelli 6/3, Casalecchio di Reno (BO) Italy > > www.cineca.it Tel: +39 051 6171722 > > g.fatigati [AT] cineca.it > -- Ing. Gabriele Fatigati HPC specialist SuperComputing Applications and Innovation Department Via Magnanelli 6/3, Casalecchio di Reno (BO) Italy www.cineca.it Tel: +39 051 6171722 g.fatigati [AT] cineca.it
output_valgrind
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