Floating point exception while running SQP simulation

MFiX Bug report
#1

How to resolve the below error ? - I am running sqp simulation using mfix 23.4 and running in hpc cluster
BFD: Dwarf Error: found dwarf version ‘5’, this reader only handles version 2, 3 and 4 information.
BFD: Dwarf Error: found dwarf version ‘5’, this reader only handles version 2, 3 and 4 information.
==== backtrace (tid: 18310) ====
0 0x000000000004d455 ucs_debug_print_backtrace() ???:0
1 0x00000000004b9aea __sq_contact_newton_dpmethod_mod_MOD_func_dp_a() ???:0
2 0x00000000004bc356 __sq_contact_newton_dpmethod_mod_MOD_sq_contact_newton_dp_a() ???:0
3 0x00000000004b63a5 _sq_calc_force_mod_MOD_calc_force_superdem() ???:0
4 0x0000000000469edd des_time_march_MOD_des_time_step() ???:0
5 0x0000000000403807 run_mfix() ???:0
6 0x0000000000403c3a MAIN() mfix.f:0
7 0x0000000000402de1 main() ???:0
8 0x0000000000022555 __libc_start_main() ???:0
9 0x0000000000402e11 _start() ???:0

Program received signal SIGFPE: Floating-point exception - erroneous arithmetic operation.

Backtrace for this error:
#0 0x2ba6f06aa62f in ???
#1 0x4b9aea in __sq_contact_newton_dpmethod_mod_MOD_func_dp_a
at /home/chemical/dual/ch7190197/mfix_gui/mfix-23.4.1/model/des/sq_contact_detection_newton.f:964
#2 0x4bc355 in __sq_contact_newton_dpmethod_mod_MOD_sq_contact_newton_dp_a
at /home/chemical/dual/ch7190197/mfix_gui/mfix-23.4.1/model/des/sq_contact_detection_newton.f:267
#3 0x4b63a4 in __sq_calc_force_mod_MOD_calc_force_superdem
at /home/chemical/dual/ch7190197/mfix_gui/mfix-23.4.1/model/des/sq_calc_force_superdem.f:345
#4 0x469edc in _des_time_march_MOD_des_time_step
at /home/chemical/dual/ch7190197/mfix_gui/mfix-23.4.1/model/des/des_time_march.f:193
#5 0x403806 in run_dem
at /home/chemical/dual/ch7190197/mfix_gui/mfix-23.4.1/model/mfix.f:214
#6 0x403806 in run_mfix
at /home/chemical/dual/ch7190197/mfix_gui/mfix-23.4.1/model/mfix.f:149
#7 0x403c39 in mfix
at /home/chemical/dual/ch7190197/mfix_gui/mfix-23.4.1/model/mfix.f:323
#8 0x402de0 in main
at /home/chemical/dual/ch7190197/mfix_gui/mfix-23.4.1/model/mfix.f:293

Primary job terminated normally, but 1 process returned
a non-zero exit code. Per user-direction, the job has been aborted.

mpirun noticed that process rank 0 with PID 0 on node khas139 exited on signal 8 (Floating point exception).

#2

Hi. This error may have been fixed in MFiX 24.1.1 which we are about to release this week (it has a few SQP-related bug fixes). Please upload your simulation here so we can test it. Main menu → Submit bug report then attach the ZIP file to this thread.

Thank you!

– Charles

#3

But can you help me understanding why is this error showing up . Because its important for me to complete this simulation