Core files under mpich, p4 device

Rayson Ho raysonlogin at yahoo.com
Mon Oct 22 16:10:39 EDT 2001


What does "limit" show??

If you have "coredumpsize = 0", no core files will be generated.

cputime         unlimited
filesize        unlimited
datasize        unlimited
stacksize       2044 kbytes
coredumpsize    0 kbytes
memoryuse       unlimited
descriptors     1024
memorylocked    unlimited
maxproc         8192
openfiles       1024

Rayson

--- Jaco Schieke <schieke at cae.wisc.edu> wrote:
> All,
> 
> Has anybody been able to produce core files under mpich using the p4
> device.  I have been able to verify on 2 different clusters
> that SIGSEGV errors under mpich does not produce a core file.  Below
> are the error msgs, but not core files appeared.  I have not
> tried kernel patches to produce named core files - but would first
> like to know whether this will solve things.
> 
> How does one produce these?
> 
> Jaco Schieke
> Research Assistant
> Dept. of Chemical Engineering
> Univ. of Wisconsin Madison
> 
> 
> Host 1: Linux 2.2.16-22 #1 Tue Aug 22 16:49:06 EDT 2000 i686 unknown
> p0_26109:  p4_error: interrupt SIGSEGV: 11
> bm_list_26110:  p4_error: interrupt SIGINT: 2
> p0_26109: (4.578240) net_send: could not write to fd=4, errno = 32
> 
> 
> Host 2: Linux 2.4.6 #1 Sun Aug 19 12:44:48 CDT 2001 i686 unknown
> p4_32319:  p4_error: interrupt SIGSEGV: 11
> p2_3383:  p4_error: interrupt SIGSEGV: 11
> Broken pipe
> rm_l_5_7126:  p4_error: net_recv read:  probable EOF on socket: 1
> rm_l_1_3581: (1417.766098) net_recv failed for fd = 6
> rm_l_1_3581:  p4_error: net_recv read, errno = : 104
> Cleaning up
> rm_l_3_5475: (1417.574178) net_recv failed for fd = 6
> rm_l_3_5475:  p4_error: net_recv read, errno = : 104
> 
> 
> 
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