SIGSEGV segmentation fault

615 views
Skip to first unread message

pavithra

unread,
Apr 11, 2021, 11:24:18 AM4/11/21
to FDS and Smokeview Discussions
Hi all,
       I am trying to simulate a fire scenario. the domain is of dimensions 1.2 m x 1.2 m x 1 m. The minimum cell size that is used is 1 mm. However I encountered the following error during my simulations. But the file runs with coarser cell sizes. I use the recent release of FDS on a HPC cluster. Any advice on why this may happen?

&MESH IJK=300,600,500, XB = 0.15,0.45,0.15,0.75,0,0.5/
&MESH IJK=300,600,500, XB = 0.45,0.75,0.15,0.75,0,0.5/
&MESH IJK=300,600,500, XB = 0.75,1.05,0.15,0.75,0,0.5/
&MESH IJK=300,600,500, XB = 1.05,1.35,0.15,0.75,0,0.5/

&MESH IJK=300,600,500, XB = 0.15,0.45,0.75,1.35,0,0.5/
&MESH IJK=300,600,500, XB = 0.45,0.75,0.75,1.35,0,0.5/
&MESH IJK=300,600,500, XB = 0.75,1.05,0.75,1.35,0,0.5/
&MESH IJK=300,600,500, XB = 1.05,1.35,0.75,1.35,0,0.5/


&MESH IJK=75,150,125, XB = 0.15,0.45,0.15,0.75,0.5,1/
&MESH IJK=75,150,125, XB = 0.45,0.75,0.15,0.75,0.5,1/
&MESH IJK=75,150,125, XB = 0.75,1.05,0.15,0.75,0.5,1/
&MESH IJK=75,150,125, XB = 1.05,1.35,0.15,0.75,0.5,1/

&MESH IJK=75,150,125, XB = 0.15,0.45,0.75,1.35,0.5,1/
&MESH IJK=75,150,125, XB = 0.45,0.75,0.75,1.35,0.5,1/
&MESH IJK=75,150,125, XB = 0.75,1.05,0.75,1.35,0.5,1/
&MESH IJK=75,150,125, XB = 1.05,1.35,0.75,1.35,0.5,1/



Reading FDS input file ...

forrtl: severe (174): SIGSEGV, segmentation fault occurred
Image              PC                Routine            Line        Source             
fds                00000000085B11CA  Unknown               Unknown  Unknown
libpthread-2.17.s  00007F37C5B116D0  Unknown               Unknown  Unknown
fds                0000000008E5FFDD  Unknown               Unknown  Unknown
fds                0000000008688624  MAIN__                    198  main.f90
fds                000000000040A122  Unknown               Unknown  Unknown
libc-2.17.so       00007F37C3B07445  __libc_start_main     Unknown  Unknown
fds                000000000040A029  Unknown               Unknown  Unknown
forrtl: severe (174): SIGSEGV, segmentation fault occurred
Image              PC                Routine            Line        Source             
fds                00000000085B11CA  Unknown               Unknown  Unknown
libpthread-2.17.s  00007FE3F9E0C6D0  Unknown               Unknown  Unknown
fds                0000000008E5FFDD  Unknown               Unknown  Unknown
fds                0000000008688624  MAIN__                    198  main.f90
fds                000000000040A122  Unknown               Unknown  Unknown
libc-2.17.so       00007FE3F7E02445  __libc_start_main     Unknown  Unknown
fds                000000000040A029  Unknown               Unknown  Unknown
forrtl: severe (174): SIGSEGV, segmentation fault occurred
Image              PC                Routine            Line        Source             
fds                00000000085B11CA  Unknown               Unknown  Unknown
libpthread-2.17.s  00007F140F35A6D0  Unknown               Unknown  Unknown
fds                0000000008E5FFDD  Unknown               Unknown  Unknown
fds                0000000008688624  MAIN__                    198  main.f90
fds                000000000040A122  Unknown               Unknown  Unknown
libc-2.17.so       00007F140D350445  __libc_start_main     Unknown  Unknown
fds                000000000040A029  Unknown               Unknown  Unknown
forrtl: severe (174): SIGSEGV, segmentation fault occurred
Image              PC                Routine            Line        Source             
fds                00000000085B11CA  Unknown               Unknown  Unknown
libpthread-2.17.s  00007F5A5C3FC6D0  Unknown               Unknown  Unknown
fds                0000000008E5FFDD  Unknown               Unknown  Unknown
fds                0000000008688624  MAIN__                    198  main.f90
fds                000000000040A122  Unknown               Unknown  Unknown
libc-2.17.so       00007F5A5A3F2445  __libc_start_main     Unknown  Unknown
fds                000000000040A029  Unknown               Unknown  Unknown
forrtl: severe (174): SIGSEGV, segmentation fault occurred
Image              PC                Routine            Line        Source             
fds                00000000085B11CA  Unknown               Unknown  Unknown
libpthread-2.17.s  00007FB576D9F6D0  Unknown               Unknown  Unknown
fds                0000000008E5FFDD  Unknown               Unknown  Unknown
fds                0000000008688624  MAIN__                    198  main.f90
fds                000000000040A122  Unknown               Unknown  Unknown
libc-2.17.so       00007FB574D95445  __libc_start_main     Unknown  Unknown
fds                000000000040A029  Unknown               Unknown  Unknown
forrtl: severe (174): SIGSEGV, segmentation fault occurred
Image              PC                Routine            Line        Source             
fds                00000000085B11CA  Unknown               Unknown  Unknown
libpthread-2.17.s  00007F2A6A8316D0  Unknown               Unknown  Unknown
fds                0000000008E5FFDD  Unknown               Unknown  Unknown
fds                0000000008688624  MAIN__                    198  main.f90
fds                000000000040A122  Unknown               Unknown  Unknown
libc-2.17.so       00007F2A68827445  __libc_start_main     Unknown  Unknown
fds                000000000040A029  Unknown               Unknown  Unknown
forrtl: severe (174): SIGSEGV, segmentation fault occurred
Image              PC                Routine            Line        Source             
fds                00000000085B11CA  Unknown               Unknown  Unknown
libpthread-2.17.s  00007F5323D5E6D0  Unknown               Unknown  Unknown
fds                0000000008E5FFDD  Unknown               Unknown  Unknown
fds                0000000008688624  MAIN__                    198  main.f90
fds                000000000040A122  Unknown               Unknown  Unknown
libc-2.17.so       00007F5321D54445  __libc_start_main     Unknown  Unknown
fds                000000000040A029  Unknown               Unknown  Unknown
forrtl: severe (174): SIGSEGV, segmentation fault occurred
Image              PC                Routine            Line        Source             
fds                00000000085B11CA  Unknown               Unknown  Unknown
libpthread-2.17.s  00007F61547266D0  Unknown               Unknown  Unknown
fds                0000000008E5FFDD  Unknown               Unknown  Unknown
fds                0000000008688624  MAIN__                    198  main.f90
fds                000000000040A122  Unknown               Unknown  Unknown
libc-2.17.so       00007F615271C445  __libc_start_main     Unknown  Unknown
fds                000000000040A029  Unknown               Unknown  Unknown

===================================================================================
=   BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
=   RANK 0 PID 188417 RUNNING AT node7
=   KILLED BY SIGNAL: 9 (Killed)
===================================================================================

===================================================================================
=   BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
=   RANK 1 PID 188418 RUNNING AT node7
=   KILLED BY SIGNAL: 9 (Killed)
===================================================================================

===================================================================================
=   BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
=   RANK 2 PID 188419 RUNNING AT node7
=   KILLED BY SIGNAL: 9 (Killed)
===================================================================================

===================================================================================
=   BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
=   RANK 3 PID 188420 RUNNING AT node7
=   KILLED BY SIGNAL: 9 (Killed)
===================================================================================

===================================================================================
=   BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
=   RANK 4 PID 188421 RUNNING AT node7
=   KILLED BY SIGNAL: 9 (Killed)
===================================================================================

===================================================================================
=   BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
=   RANK 5 PID 188422 RUNNING AT node7
=   KILLED BY SIGNAL: 9 (Killed)
===================================================================================

===================================================================================
=   BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
=   RANK 6 PID 188423 RUNNING AT node7
=   KILLED BY SIGNAL: 9 (Killed)
===================================================================================

===================================================================================
=   BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
=   RANK 7 PID 188424 RUNNING AT node7
=   KILLED BY SIGNAL: 9 (Killed)
===================================================================================

===================================================================================
=   BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
=   RANK 9 PID 188426 RUNNING AT node7
=   KILLED BY SIGNAL: 9 (Killed)
===================================================================================

===================================================================================
=   BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
=   RANK 12 PID 188429 RUNNING AT node7
=   KILLED BY SIGNAL: 9 (Killed)
===================================================================================

===================================================================================
=   BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
=   RANK 13 PID 188430 RUNNING AT node7
=   KILLED BY SIGNAL: 9 (Killed)
===================================================================================

Salah Benkorichi

unread,
Apr 11, 2021, 11:37:12 AM4/11/21
to FDS and Smokeview Discussions
There are two possibilities
1. You don't have sufficient memory ram on your machine 
2. Or there is a limit is set. Check it with ulimt - a on terminal and see what it returns. 

--
You received this message because you are subscribed to the Google Groups "FDS and Smokeview Discussions" group.
To unsubscribe from this group and stop receiving emails from it, send an email to fds-smv+u...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/fds-smv/5be721aa-52d5-47d0-a59c-775e98ea2ebcn%40googlegroups.com.

dr_jfloyd

unread,
Apr 11, 2021, 5:35:08 PM4/11/21
to FDS and Smokeview Discussions
You have 548 million grid cells.  This will need multiple Tb of memory.

pavithra

unread,
Apr 12, 2021, 8:18:57 AM4/12/21
to FDS and Smokeview Discussions
Thank you both. I am working on fire spread on a slab wherein the grid cells have to be finer near to the obstruction. Is it a way to use periodic boundary conditions for this simulation in FDS/ any other method to simplify my domain to run it in our cluster. If yes, can I have any sample code for the same?
Reply all
Reply to author
Forward
Message has been deleted
0 new messages