{"id":342961,"date":"2024-01-03T15:26:21","date_gmt":"2024-01-03T15:26:21","guid":{"rendered":"\/forum\/forums\/topic\/ansys-fluent-error-with-mpi\/"},"modified":"2024-01-03T15:26:21","modified_gmt":"2024-01-03T15:26:21","slug":"ansys-fluent-error-with-mpi","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ansys-fluent-error-with-mpi\/","title":{"rendered":"Ansys Fluent – Error with MPI"},"content":{"rendered":"

Hi, I’m trying to run a simulation using ansys fluent 2023 R1 on my university HPCE but ran into some trouble.<\/p>\n

This is what i used in the job file – “fluent 2ddp -g -mpi=intel -t10 -cnf=$PBS_NODEFILE -i trial1journal.jou > fluentdata.out”.
I am getting some errors mostly cause by MPI but I’m not able to figure out what the issue is.
Part of the error file – <\/p>\n

This probably means that Tcl wasn’t installed properly.<\/div>\n
 <\/div>\n
application-specific initialization failed: Can’t find a usable init.tcl in the following directories: <\/div>\n
    \/home2\/polyflowbuilds\/buildagents\/milpolybld01\/work\/1210bc2a0080eb69\/Tcl-tk\/8_5_11\/linx64\/Release\/tcltk\/lib\/tcl8.5 \/usr\/lib\/tcl8.5 \/lib\/tcl8.5 \/usr\/library \/library \/tcl8.5.11\/library \/tcl8.5.11\/library<\/div>\n
 <\/div>\n
 <\/div>\n
 <\/div>\n
This probably means that Tcl wasn’t installed properly.<\/div>\n
 <\/div>\n
*** Error in `\/lfs\/sware\/ansys2023r1\/ansys_inc\/v231\/fluent\/fluent23.1.0\/lnamd64\/2ddp_node\/fluent_mpi.23.1.0′: free(): invalid next size (fast): 0x00000000065bcca0 ***<\/div>\n
*** Error in `\/lfs\/sware\/ansys2023r1\/ansys_inc\/v231\/fluent\/fluent23.1.0\/lnamd64\/2ddp_node\/fluent_mpi.23.1.0′: free(): invalid next size (fast): 0x000000000738aca0 ***<\/div>\n
======= Backtrace: =========<\/div>\n
\/lib64\/libc.so.6(+0x81489)[0x2ab7ff78b489]<\/div>\n
\/lfs\/sware\/ansys2023r1\/ansys_inc\/v231\/fluent\/fluent23.1.0\/multiport\/lnamd64\/mpi\/shared\/libmport.so(+0x87760)[0x2ab7eaa3c760]<\/div>\n
\/lfs\/sware\/ansys2023r1\/ansys_inc\/v231\/fluent\/fluent23.1.0\/multiport\/lnamd64\/mpi\/shared\/libmport.so(vmfree+0xe1)[0x2ab7eaa3ad58]<\/div>\n
\/lfs\/sware\/ansys2023r1\/ansys_inc\/v231\/fluent\/fluent23.1.0\/lnamd64\/2ddp_node\/fluent_mpi.23.1.0(CX_Free_MU_Unsafe+0x181)[0x28f2fa1]<\/div>\n
\/lfs\/sware\/ansys2023r1\/ansys_inc\/v231\/fluent\/fluent23.1.0\/lnamd64\/2ddp_node\/fluent_mpi.23.1.0[0x1f6773c]<\/p>\n

Another error file:
myid (5): Fatal signal raised sig = SIGIOT 
 \/lfs\/sware\/ansys2023r1\/ansys_inc\/v231\/fluent\/fluent23.1.0\/lnamd64\/2ddp_node\/fluent_mpi.23.1.0() [0x2927f0c]
 \/lib64\/libpthread.so.0(+0xf5d0) [0x2ab7edade5d0]
 \/lib64\/libc.so.6(gsignal+0x37) [0x2ab7ff740207]
 \/lib64\/libc.so.6(abort+0x148) [0x2ab7ff7418f8]
 \/lib64\/libc.so.6(+0x78d27) [0x2ab7ff782d27]<\/p>\n

And the transcript file:<\/p>\n

Building…<\/div>\n
     mesh<\/div>\n
auto partitioning mesh by Metis (fast<\/div>\n
===============Message from the Cortex Process================================<\/div>\n
 <\/div>\n
Fatal error in one of the compute processes.<\/div>\n
 <\/div>\n
==============================================================================<\/div>\n

Can you please help me with solving this? I’m trying to simulate using 1 node and 10 cores.<\/div>\n","protected":false},"template":"","class_list":["post-342961","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t