Learning Forum

[drasszkusz]

Hi all,

I am trying to run Ansys Fluent 2024 R2 in distributed mode on two computers.

Computer 1:
AMD Ryzen 9 7950X
64 GB RAM
NVIDIA RTX A4000
Windows 11

Computer 2:
AMD Ryzen 9 7950X
64 GB RAM
NVIDIA Quadro 4000
Windows 11

I have followed the suggested instructions that I have found in the tutorial.

Same username and password on both computers, same Ansys and Intel MPI versions are installed at the same path. I have also checked the recommended Intel MPI version for the Ansys version and the correct one (2021.8.0) is installed.

The whole C: drive is shared both on Computer 1 and Computer 2. Credentials were registered from both sides.

The problem is that I can't run fluent using both computers' resources. I can run Fluent from Computer 1 using Computer 2's resources and back, but when I specify to run 4 cores on Computer 1 and 4 cores on computer 2 then I get an error message (see attached photo). It does not matter how many cores I specifiy, there is a problem when I would like to use both computer's resources. Individually they work well.

Thank you in advance for any suggestion that can solve this!

[MangeshANSYS]

Hello

are both machines part of the same active directory (i.e. on same domain) or are they in a workgroup ?

[drasszkusz]

Hello Mangesh,

both machines are in the same workgroup and the firewalls were disabled too.

[MangeshANSYS]

to the best of my knowledge MPI requires active directory

[drasszkusz]

I think it is or was possible to run Ansys distributed without a domain. Someone did it in 2014 on Windows 7 machines: https://www.cfd-online.com/Forums/fluent/134275-tutorial-run-fluent-distributed-memory-2-windows-7-64-bit-machines.html

But I don't know if something related has changed in the new Ansys or MPI versions.

[MangeshANSYS]

If you do not suspect authentication to be an issue then it could be file system

please check if any disk access or permissions issues are causing the error

A web search of the error codes 1073741819  & c0000005 on Microsoft website brought up some links. These may be coming from the operating system

See if information on any of these is helpful a consult with your system administrator before taking any actions which could lead to undesired effeccts
I am lisgint out action followed by the link where it was mentioned on the Microsoft Forum

a new user profile as suggested in
https://answers.microsoft.com/en-us/windows/forum/all/error-1073741819-and-0xc0000005/7948d9d7-c5a7-4358-be7c-88446de90736 

system restore
https://answers.microsoft.com/en-us/windows/forum/all/application-error-0xc0000005-file-system-error/967e454e-699c-408a-b838-2ab79b66c3b7

VC++ redistributables (see prerequisites in Ansys setup)
https://answers.microsoft.com/en-us/windows/forum/all/solved-error-code-1073741819-when-running-certain/76b4c0e8-c5ff-43cd-9098-0ae524b422ac


sfc /scannow
DISM.exe /Online /Cleanup-image /RestoreHealt
https://answers.microsoft.com/en-us/windows/forum/all/application-error-0xc0000005/6224ae45-a251-4f21-b076-74524618d00a
&
https://answers.microsoft.com/en-us/windows/forum/all/cant-open-any-exe-files-or-windows-apps/747f103e-d91d-4a21-b730-ba75f6d4a282

[drasszkusz]

It can be a permission issue as the advanced debug shows this:

Checking the status of Hydra service ...
[mpiexec@DESKTOP-D450AC1] Launch arguments: C:\\PROGRA~1\\ANSYSI~1\\v242\\fluent\\fluent24.2.0\\multiport\\mpi\\win64\\intel2021\\bin\\hydra_bstrap_proxy.exe --upstream-host 192.168.10.237 --upstream-port 49942 --pgid 0 --launcher service --launcher-number 0 --base-path C:\\PROGRA~1\\ANSYSI~1\\v242\\fluent\\fluent24.2.0\\multiport\\mpi\\win64\\intel2021\\bin --tree-width 16 --tree-level 1 --time-left -1 --launch-type 2 --debug --service_port 0 --proxy-id 0 --node-id 0 --subtree-size 1 --upstream-fd 608 C:\\PROGRA~1\\ANSYSI~1\\v242\\fluent\\fluent24.2.0\\multiport\\mpi\\win64\\intel2021\\bin\\hydra_pmi_proxy.exe --usize -1 --auto-cleanup 1 --abort-signal 9 
[proxy:0:1@DESKTOP-GBVKBOL] unable to chdir to C:\\Users\\Dani\\Documents\\ansys
[proxy:0:1@DESKTOP-GBVKBOL] pmi cmd from fd 568: cmd=init pmi_version=1 pmi_subversion=1
[proxy:0:1@DESKTOP-GBVKBOL] PMI response: cmd=response_to_init pmi_version=1 pmi_subversion=1 rc=0
[proxy:0:1@DESKTOP-GBVKBOL] pmi cmd from fd 568: cmd=get_maxes
[proxy:0:1@DESKTOP-GBVKBOL] PMI response: cmd=maxes kvsname_max=256 keylen_max=64 vallen_max=4096
[proxy:0:1@DESKTOP-GBVKBOL] pmi cmd from fd 568: cmd=get_appnum
[proxy:0:1@DESKTOP-GBVKBOL] PMI response: cmd=appnum appnum=0
[proxy:0:1@DESKTOP-GBVKBOL] pmi cmd from fd 568: cmd=get_my_kvsname
[proxy:0:1@DESKTOP-GBVKBOL] PMI response: cmd=my_kvsname kvsname=kvs_27212_0
[proxy:0:1@DESKTOP-GBVKBOL] pmi cmd from fd 568: cmd=get kvsname=kvs_27212_0 key=PMI_process_mapping
[proxy:0:1@DESKTOP-GBVKBOL] PMI response: cmd=get_result rc=0 msg=success value=(vector,(0,2,2))
[proxy:0:1@DESKTOP-GBVKBOL] pmi cmd from fd 568: cmd=put kvsname=kvs_27212_0 key=-bcast-1-2 value=4D504943485F4E454D5F31303233325F37323335323434393235
[proxy:0:1@DESKTOP-GBVKBOL] PMI response: cmd=put_result rc=0 msg=success
[proxy:0:1@DESKTOP-GBVKBOL] pmi cmd from fd 568: cmd=barrier_in
[proxy:0:1@DESKTOP-GBVKBOL] pmi cmd from fd 596: cmd=init pmi_version=1 pmi_subversion=1
[proxy:0:1@DESKTOP-GBVKBOL] PMI response: cmd=response_to_init pmi_version=1 pmi_subversion=1 rc=0
[proxy:0:1@DESKTOP-GBVKBOL] pmi cmd from fd 596: cmd=get_maxes
[proxy:0:1@DESKTOP-GBVKBOL] PMI response: cmd=maxes kvsname_max=256 keylen_max=64 vallen_max=4096
[proxy:0:1@DESKTOP-GBVKBOL] pmi cmd from fd 596: cmd=get_appnum
[proxy:0:1@DESKTOP-GBVKBOL] PMI response: cmd=appnum appnum=0
[proxy:0:1@DESKTOP-GBVKBOL] pmi cmd from fd 596: cmd=get_my_kvsname
[proxy:0:1@DESKTOP-GBVKBOL] PMI response: cmd=my_kvsname kvsname=kvs_27212_0
[proxy:0:1@DESKTOP-GBVKBOL] pmi cmd from fd 596: cmd=get kvsname=kvs_27212_0 key=PMI_process_mapping
[proxy:0:1@DESKTOP-GBVKBOL] PMI response: cmd=get_result rc=0 msg=success value=(vector,(0,2,2))
[proxy:0:1@DESKTOP-GBVKBOL] pmi cmd from fd 596: cmd=barrier_in
[proxy:0:0@DESKTOP-D450AC1] pmi cmd from fd 572: cmd=init pmi_version=1 pmi_subversion=1
[proxy:0:0@DESKTOP-D450AC1] PMI response: cmd=response_to_init pmi_version=1 pmi_subversion=1 rc=0
[proxy:0:0@DESKTOP-D450AC1] pmi cmd from fd 572: cmd=get_maxes
[proxy:0:0@DESKTOP-D450AC1] PMI response: cmd=maxes kvsname_max=256 keylen_max=64 vallen_max=4096
[proxy:0:0@DESKTOP-D450AC1] pmi cmd from fd 572: cmd=get_appnum
[proxy:0:0@DESKTOP-D450AC1] PMI response: cmd=appnum appnum=0
[proxy:0:0@DESKTOP-D450AC1] pmi cmd from fd 572: cmd=get_my_kvsname
[proxy:0:0@DESKTOP-D450AC1] PMI response: cmd=my_kvsname kvsname=kvs_27212_0
[proxy:0:0@DESKTOP-D450AC1] pmi cmd from fd 572: cmd=get kvsname=kvs_27212_0 key=PMI_process_mapping
[proxy:0:0@DESKTOP-D450AC1] PMI response: cmd=get_result rc=0 msg=success value=(vector,(0,2,2))
[0] MPI startup(): Intel(R) MPI Library, Version 2021.8  Build 20221129
[0] MPI startup(): Copyright (C) 2003-2022 Intel Corporation.  All rights reserved.
[0] MPI startup(): library kind: release
[proxy:0:0@DESKTOP-D450AC1] pmi cmd from fd 572: cmd=put kvsname=kvs_27212_0 key=-bcast-1-0 value=4D504943485F4E454D5F32373334305F32333332373638383139
[proxy:0:0@DESKTOP-D450AC1] PMI response: cmd=put_result rc=0 msg=success
[proxy:0:0@DESKTOP-D450AC1] pmi cmd from fd 572: cmd=barrier_in
[proxy:0:0@DESKTOP-D450AC1] pmi cmd from fd 624: cmd=init pmi_version=1 pmi_subversion=1
[proxy:0:0@DESKTOP-D450AC1] PMI response: cmd=response_to_init pmi_version=1 pmi_subversion=1 rc=0
[proxy:0:0@DESKTOP-D450AC1] pmi cmd from fd 624: cmd=get_maxes
[proxy:0:0@DESKTOP-D450AC1] PMI response: cmd=maxes kvsname_max=256 keylen_max=64 vallen_max=4096
[proxy:0:0@DESKTOP-D450AC1] pmi cmd from fd 624: cmd=get_appnum
[proxy:0:0@DESKTOP-D450AC1] PMI response: cmd=appnum appnum=0
[proxy:0:0@DESKTOP-D450AC1] pmi cmd from fd 624: cmd=get_my_kvsname
[proxy:0:0@DESKTOP-D450AC1] PMI response: cmd=my_kvsname kvsname=kvs_27212_0
[proxy:0:0@DESKTOP-D450AC1] pmi cmd from fd 624: cmd=get kvsname=kvs_27212_0 key=PMI_process_mapping
[proxy:0:0@DESKTOP-D450AC1] PMI response: cmd=get_result rc=0 msg=success value=(vector,(0,2,2))
[proxy:0:0@DESKTOP-D450AC1] pmi cmd from fd 624: cmd=barrier_in
[proxy:0:0@DESKTOP-D450AC1] PMI response: cmd=barrier_out
[proxy:0:0@DESKTOP-D450AC1] PMI response: cmd=barrier_out
[proxy:0:0@DESKTOP-D450AC1] pmi cmd from fd 624: cmd=get kvsname=kvs_27212_0 key=-bcast-1-0
[proxy:0:0@DESKTOP-D450AC1] PMI response: cmd=get_result rc=0 msg=success value=4D504943485F4E454D5F32373334305F32333332373638383139
[proxy:0:1@DESKTOP-GBVKBOL] PMI response: cmd=barrier_out
[proxy:0:1@DESKTOP-GBVKBOL] PMI response: cmd=barrier_out
[proxy:0:1@DESKTOP-GBVKBOL] pmi cmd from fd 596: cmd=get kvsname=kvs_27212_0 key=-bcast-1-2
[proxy:0:1@DESKTOP-GBVKBOL] PMI response: cmd=get_result rc=0 msg=success value=4D504943485F4E454D5F31303233325F37323335323434393235
[0] MPI startup(): libfabric version: 1.13.2-impi
[0] MPI startup(): libfabric provider: tcp;ofi_rxm
[proxy:0:0@DESKTOP-D450AC1] pmi cmd from fd 572: cmd=put kvsname=kvs_27212_0 key=bc-0 value=mpi#0200C326A9FE2BE20000000000000000$
[proxy:0:0@DESKTOP-D450AC1] PMI response: cmd=put_result rc=0 msg=success
[proxy:0:0@DESKTOP-D450AC1] pmi cmd from fd 624: cmd=put kvsname=kvs_27212_0 key=bc-1 value=mpi#0200C327A9FE2BE20000000000000000$
[proxy:0:0@DESKTOP-D450AC1] PMI response: cmd=put_result rc=0 msg=success
[proxy:0:0@DESKTOP-D450AC1] pmi cmd from fd 572: cmd=barrier_in
[proxy:0:0@DESKTOP-D450AC1] pmi cmd from fd 624: cmd=barrier_in
[proxy:0:1@DESKTOP-GBVKBOL] pmi cmd from fd 596: cmd=put kvsname=kvs_27212_0 key=bc-3 value=mpi#0200EE09C0A80AA10000000000000000$
[proxy:0:1@DESKTOP-GBVKBOL] PMI response: cmd=put_result rc=0 msg=success
[proxy:0:1@DESKTOP-GBVKBOL] pmi cmd from fd 568: cmd=put kvsname=kvs_27212_0 key=bc-2 value=mpi#0200EE08C0A80AA10000000000000000$
[proxy:0:1@DESKTOP-GBVKBOL] PMI response: cmd=put_result rc=0 msg=success
[proxy:0:1@DESKTOP-GBVKBOL] pmi cmd from fd 596: cmd=barrier_in
[proxy:0:1@DESKTOP-GBVKBOL] pmi cmd from fd 568: cmd=barrier_in
[proxy:0:0@DESKTOP-D450AC1] PMI response: cmd=barrier_out
[proxy:0:0@DESKTOP-D450AC1] PMI response: cmd=barrier_out
[proxy:0:0@DESKTOP-D450AC1] pmi cmd from fd 624: cmd=get kvsname=kvs_27212_0 key=bc-2
[proxy:0:1@DESKTOP-GBVKBOL] PMI response: cmd=barrier_out
[proxy:0:1@DESKTOP-GBVKBOL] PMI response: cmd=barrier_out
[proxy:0:0@DESKTOP-D450AC1] PMI response: cmd=get_result rc=0 msg=success value=mpi#0200EE08C0A80AA10000000000000000$
[proxy:0:0@DESKTOP-D450AC1] pmi cmd from fd 572: cmd=get kvsname=kvs_27212_0 key=bc-0
[proxy:0:0@DESKTOP-D450AC1] PMI response: cmd=get_result rc=0 msg=success value=mpi#0200C326A9FE2BE20000000000000000$
[proxy:0:1@DESKTOP-GBVKBOL] pmi cmd from fd 596: cmd=get kvsname=kvs_27212_0 key=bc-2
[proxy:0:1@DESKTOP-GBVKBOL] PMI response: cmd=get_result rc=0 msg=success value=mpi#0200EE08C0A80AA10000000000000000$
[proxy:0:1@DESKTOP-GBVKBOL] pmi cmd from fd 568: cmd=get kvsname=kvs_27212_0 key=bc-0
[proxy:0:1@DESKTOP-GBVKBOL] PMI response: cmd=get_result rc=0 msg=success value=mpi#0200C326A9FE2BE20000000000000000$
[proxy:0:1@DESKTOP-GBVKBOL] pmi cmd from fd 596: cmd=get kvsname=kvs_27212_0 key=bc-3
[proxy:0:1@DESKTOP-GBVKBOL] PMI response: cmd=get_result rc=0 msg=success value=mpi#0200EE09C0A80AA10000000000000000$
[proxy:0:1@DESKTOP-GBVKBOL] pmi cmd from fd 568: cmd=get kvsname=kvs_27212_0 key=bc-1
[proxy:0:1@DESKTOP-GBVKBOL] PMI response: cmd=get_result rc=0 msg=success value=mpi#0200C327A9FE2BE20000000000000000$
[proxy:0:0@DESKTOP-D450AC1] pmi cmd from fd 624: cmd=get kvsname=kvs_27212_0 key=bc-3
[proxy:0:0@DESKTOP-D450AC1] PMI response: cmd=get_result rc=0 msg=success value=mpi#0200EE09C0A80AA10000000000000000$
[proxy:0:0@DESKTOP-D450AC1] pmi cmd from fd 572: cmd=get kvsname=kvs_27212_0 key=bc-1
[proxy:0:0@DESKTOP-D450AC1] PMI response: cmd=get_result rc=0 msg=success value=mpi#0200C327A9FE2BE20000000000000000$
[0] MPI startup(): File "/tuning_generic_shm-ofi_tcp-ofi-rxm.dat" not found
[0] MPI startup(): Load tuning file: "/tuning_generic_shm-ofi.dat"
[0] MPI startup(): File "/tuning_generic_shm-ofi.dat" not found
[0] MPI startup(): File "/tuning_generic_shm-ofi.dat" not found
[0] MPI startup(): File "" not found
[0] MPI startup(): Unable to read tuning file for ch4 level
[0] MPI startup(): File "" not found
[0] MPI startup(): Unable to read tuning file for net level
[0] MPI startup(): File "" not found
[0] MPI startup(): Unable to read tuning file for shm level
[0] MPI startup(): Imported environment partly inaccesible. Map=0 Info=0
[1] MPI startup(): Imported environment partly inaccesible. Map=0 Info=0
[3] MPI startup(): Imported environment partly inaccesible. Map=0 Info=0
[2] MPI startup(): Imported environment partly inaccesible. Map=0 Info=0

The Windows 11 system is quite new as it was installed at the beginning of September.  I have the VC++ installed too.

I will give a try for the active directory when I will have time. I just tried to avoid it, as it seemed to be difficult to create without a Windows Server software. Thank you for the suggestions