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
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
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