Core files under mpich, p4 device

Jaco Schieke schieke at cae.wisc.edu
Mon Oct 22 15:14:03 EDT 2001


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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