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Running Foam on multiple nodes (small cluster) |
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June 9, 2012, 08:43 |
Running Foam on multiple nodes (small cluster)
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Senior Member
Hisham Elsafti
Join Date: Apr 2011
Location: Braunschweig, Germany
Posts: 257
Blog Entries: 10
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Hello Foamers,
I need to run OpenFOAM on two PCs. So: 1. I work on one (Master) and have a password SSH access to the other (slave). 2. I have installed version 2.1.0 from OpenCFD on both. 3. I have changed the ./bashrc of the slave to have OpenFOAM sourced before exiting the script due to non-interactive session. 4. I have the damBreak case divided into 12 sub-domains using scotch algorithm of decomposePar on both (the same path) 5. The case runs serially and in-parallel on both PCs individually. 6. I have a machines file: Code:
localhost username@slaveIP cpu=4 Code:
foamJob -p interFoam Code:
$ foamJob -p -s interFoam Parallel processing using SYSTEMOPENMPI with 12 processors Executing: /usr/bin/mpirun -np 12 -hostfile machines /opt/openfoam210/bin/foamExec -prefix /opt interFoam -parallel | tee log username@IP password: [1] /*---------------------------------------------------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: 2.1.0 | | \\ / A nd | Web: www.OpenFOAM.org | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ Build : 2.1.0-0bc225064152 Exec : interFoam -parallel Date : Jun 09 2012 Time : 14:40:07 Host : "numubuntu-System-Product-Name" PID : 4865 [1] [1] --> FOAM FATAL IO ERROR: [1] Expected a ')' or a '}' while reading List, found on line 0 an error [1] [1] file: IOstream at line 0. [1] [1] From function Istream::readEndList(const char*) [1] in file db/IOstreams/IOstreams/Istream.C at line 159. [2] [2] [2] [1] --> FOAM FATAL IO ERROR: [2] Expected a ')' or a '}' while reading List, found on line 0 an error [2] [2] file: IOstream at line 0. [2] [2] From function Istream::readEndList(const char*) [2] in file db/IOstreams/IOstreams/Istream.C at line 159. [2] FOAM parallel run exiting [2] FOAM parallel run exiting [1] -------------------------------------------------------------------------- MPI_ABORT was invoked on rank 2 in communicator MPI_COMM_WORLD with errorcode 1. NOTE: invoking MPI_ABORT causes Open MPI to kill all MPI processes. You may or may not see output from other processes, depending on exactly when Open MPI kills them. -------------------------------------------------------------------------- -------------------------------------------------------------------------- mpirun has exited due to process rank 2 with PID 2105 on node SLAVE-IP exiting without calling "finalize". This may have caused other processes in the application to be terminated by signals sent by mpirun (as reported here). -------------------------------------------------------------------------- [3] [3] [4] [4] [4] --> FOAM FATAL IO ERROR: [4] Expected a ')' or a '}' while reading List, found on line 0 an error [4] [4] file: IOstream at line 0. [4] [4] From function Istream::readEndList(const char*) [4] in file db/IOstreams/IOstreams/Istream.C at line 159. [4] FOAM parallel run exiting [4] [3] [numubuntu-System-Product-Name:04861] 2 more processes have sent help message help-mpi-api.txt / mpi-abort [numubuntu-System-Product-Name:04861] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages Best regards Hisham El Safti |
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Tags |
cluster, nodes, parallel |
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