Le 06/09/2012 10:13, Gabriele Fatigati a écrit :
Downsizing the array, up to 4GB,
valgrind gives many warnings reported in the attached file.
Adding hwloc_topology_destroy() at the end of the file would likely
remove most of them.
But that won't fix the problem since the leaks are small.
==28082== LEAK SUMMARY:
==28082== definitely lost: 4,080 bytes in 3 blocks
==28082== indirectly lost: 51,708 bytes in 973 blocks
==28082== possibly lost: 304 bytes in 1 blocks
==28082== still reachable: 1,786 bytes in 4 blocks
==28082== suppressed: 0 bytes in 0 blocks
I don't know where to look, sorry.
2012/9/6 Gabriele Fatigati
<g.fatigati@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.fatigati@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
<jsquyres@cisco.com >
On Sep 5, 2012, at 2:36 PM,
Gabriele Fatigati wrote:
Mmm. Probably right.
--
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
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