Rolf Vandevaart wrote:
This message is telling you that you have run out of file descriptors.
I am surprised that the -mca parameter setting did not fix the problem.
Can you run limit or ulimit on your shell and send the information? I
typically set my limit to 65536 assuming the system allows it.
burl-16 58 =>limit descriptors
descriptors 65536
burl-16 59 =>
bash-3.00$ ulimit -n
65536
bash-3.00$
Rolf
Thanks for the fast answer !
I've done : limit descriptors 1024 (csh style)
And that's working fine. I took the linux descriptors by default.
Thanks again,
Yann
On 08/07/09 11:21, Yann JOBIC wrote:
Hello all,
I'm using hpc8.2 :
Lidia-jobic% ompi_info
Displaying Open MPI information for 32-bit ...
Package: ClusterTools 8.2
Open MPI: 1.3.3r21324-ct8.2-b09j-r40
[...]
And i've got a X4600 machine (8*4 cores).
When i'm trying to run a 32 processor jobs, i've got :
Lidia-jobic% mpiexec --mca opal_set_max_sys_limits 1 -n 32 ./exe
[Lidia:29384] [[61597,0],0] ORTE_ERROR_LOG: The system limit on
number of pipes a process can open was reached in file
base/iof_base_setup.c at line 112
[Lidia:29384] [[61597,0],0] ORTE_ERROR_LOG: The system limit on
number of pipes a process can open was reached in file
odls_default_module.c at line 203
[Lidia:29384] [[61597,0],0] ORTE_ERROR_LOG: The system limit on
number of network connections a process can open was reached in file
oob_tcp.c at line 446
--------------------------------------------------------------------------
Error: system limit exceeded on number of network connections that
can be open
This can be resolved by setting the mca parameter
opal_set_max_sys_limits to 1,
increasing your limit descriptor setting (using limit or ulimit
commands),
or asking the system administrator to increase the system limit.
--------------------------------------------------------------------------
I tried the ulimit, the mca parameter, i've got no idea of where to
look at.
I've got the same computer under linux, and it's working fine...
Have you seen it ?
Do you know a way to bypass it ?
Many thanks,
Yann
--
___________________________
Yann JOBIC
HPC engineer
Polytech Marseille DME
IUSTI-CNRS UMR 6595
Technopôle de Château Gombert
5 rue Enrico Fermi
13453 Marseille cedex 13
Tel : (33) 4 91 10 69 39
ou (33) 4 91 10 69 43
Fax : (33) 4 91 10 69 69
