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September 24, 2021, 07:42 |
running PitzDaily parallel
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#1 |
Senior Member
qutadah
Join Date: Jun 2021
Location: USA
Posts: 101
Rep Power: 5 |
Hi everyone i am running pitzDaily tutorial on my universities Workstation and i am using scotch method with 4 processors. I have decomposed the mesh and have the folders for the processors, however when i run the simulation following error occurs...
I am using OpenFoam 6 version.... here are my cpu specs running lscpu command rababqjt@ws18:/storage/rababqjt/tutorials/incompressible/simpleFoam/pitzDaily/system> lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian Address sizes: 39 bits physical, 48 bits virtual CPU(s): 8 On-line CPU(s) list: 0-7 Thread(s) per core: 2 Core(s) per socket: 4 Socket(s): 1 NUMA node(s): 1 Vendor ID: GenuineIntel CPU family: 6 Model: 60 Model name: Intel(R) Xeon(R) CPU E3-1271 v3 @ 3.60GHz Stepping: 3 CPU MHz: 3592.177 CPU max MHz: 4000.0000 CPU min MHz: 800.0000 BogoMIPS: 7183.95 Virtualization: VT-x L1d cache: 32K L1i cache: 32K L2 cache: 256K L3 cache: 8192K NUMA node0 CPU(s): 0-7 Can anyone help me? Terminal: """ rababqjt@ws18:/storage/rababqjt/tutorials/incompressible/simpleFoam/pitzDaily> simpleFoam -parallel -------------------------------------------------------------------------- [[24535,1],0]: A high-performance Open MPI point-to-point messaging module was unable to find any relevant network interfaces: Module: OpenFabrics (openib) Host: ws18 Another transport will be used instead, although this may result in lower performance. NOTE: You can disable this warning by setting the MCA parameter btl_base_warn_component_unused to 0. -------------------------------------------------------------------------- --> FOAM FATAL ERROR: bool IPstream::init(int& argc, char**& argv) : attempt to run parallel on 1 processor From function static bool Foam::UPstream::init(int&, char**&, bool) in file UPstream.C at line 112. FOAM aborting #0 Foam::error:rintStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::UPstream::init(int&, char**&, bool) at ??:? #3 Foam::argList::argList(int&, char**&, bool, bool, bool) at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib64/libc.so.6" #6 ? at /home/abuild/rpmbuild/BUILD/glibc-2.27/csu/../sysdeps/x86_64/start.S:122 [ws18:14780] *** Process received signal *** [ws18:14780] Signal: Aborted (6) [ws18:14780] Signal code: (-6) [ws18:14780] [ 0] /lib64/libc.so.6(+0x394a0)[0x7f2d620c54a0] [ws18:14780] [ 1] /lib64/libc.so.6(gsignal+0x110)[0x7f2d620c5420] [ws18:14780] [ 2] /lib64/libc.so.6(abort+0x151)[0x7f2d620c6a01] [ws18:14780] [ 3] /opt/net/OpenFOAM/OpenFOAM-6/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam5error5abortEv+0x116)[0x7f2d6328d326] [ws18:14780] [ 4] /opt/net/OpenFOAM/OpenFOAM-6/platforms/linux64GccDPInt32Opt/lib/openmpi-system/libPstream.so(_ZN4Foam8UPstream4initERiRPPcb+0x3cc )[0x7f2d61e8221c] [ws18:14780] [ 5] /opt/net/OpenFOAM/OpenFOAM-6/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam7argListC1ERiRPPcbbb+0x7e7)[0x7f2d632b3927] [ws18:14780] [ 6] simpleFoam[0x4261e4] [ws18:14780] [ 7] /lib64/libc.so.6(__libc_start_main+0xea)[0x7f2d620b034a] [ws18:14780] [ 8] simpleFoam[0x429c2a] [ws18:14780] *** End of error message *** Aborted (core dumped) """ Thanks! |
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September 25, 2021, 20:21 |
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#2 |
New Member
Erick D. Martinez
Join Date: Oct 2020
Location: Texas
Posts: 29
Rep Power: 6 |
With OpenFOAM you have to run the solver using mpirun
In your case with 4 processors using simpleFoam it would be: mpirun -np 4 simpleFoam -parallel Test that out! |
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September 27, 2021, 05:43 |
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#3 |
Senior Member
qutadah
Join Date: Jun 2021
Location: USA
Posts: 101
Rep Power: 5 |
Why would i need an mpi? Or the better question „when do i need an mpi“ i ran alot of parallel simulations without mpi on my laptop. This is the universities workstation (pc).. thanks!
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September 27, 2021, 05:47 |
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#4 |
New Member
Erick D. Martinez
Join Date: Oct 2020
Location: Texas
Posts: 29
Rep Power: 6 |
OpenFOAM in parallel works using OpenMPI. I have used the mpirun to run parallel jobs for all my simulations in the past years. Unless anybody else has any other idea, but as far as I know you always start parallel jobs with mpirun
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September 27, 2021, 06:30 |
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#5 |
Senior Member
qutadah
Join Date: Jun 2021
Location: USA
Posts: 101
Rep Power: 5 |
i believe I had made a mistake thinking when i decompose and just run simple command it will just solve it parallely without any extra command !
Thanks alot it works now! |
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mpi, openfoam 6, openmpi |
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