View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0003674 | OpenFOAM | Patch | public | 2021-05-17 06:44 | 2021-05-17 07:28 |
| Reporter | penn | Assigned To | henry | ||
| Priority | high | Severity | minor | Reproducibility | always |
| Status | closed | Resolution | no change required | ||
| Platform | x86 | OS | Ubuntu | OS Version | Ubuntu 20.04 LTS |
| Summary | 0003674: Cannot use openfoan for cluster parallel computing | ||||
| Description | Version OpenFoam-8/OpenFoam-2012 mpirun (Open MPI) 4.0.3 I have copied a cavity file here to test cluster parallel computing OpenFOAM/OpenFOAM-8/tutorials/incompressible/icoFoam/cavity/cavity After adding the machines and system/decomposepardict files, the test folder looks like this $ ls 0 Allclean constant machines system test.sh There is no need for passwords between nodes, and SSH login and hosts files have been configured correctly. I can use any machine for parallel computing, and it can run normally. When I need more than one node to compute, I will report an error. The icofoam executable file of other nodes cannot be found, but this file is real and can run normally. Maybe it's a variable setting error in openmpi, but I don't know where to modify it to use cluster for parallel computing. Here is the output log, I hope someone can help me. $ cat test.sh blockMesh && decomposePar && mpirun --hostfile machines -np 8 icoFoam -parallel > log $ sh test.sh /*---------------------------------------------------------------------------*\ ========= | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox \\ / O peration | Website: https://openfoam.org \\ / A nd | Version: 8 \\/ M anipulation | \*---------------------------------------------------------------------------*/ Build : 8-3d62498be310 Exec : blockMesh Date : May 17 2021 Time : 11:50:01 Host : "dyfluid" PID : 191394 I/O : uncollated Case : /home/dyfluid/test/test2/cavity nProcs : 1 sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE). fileModificationChecking : Monitoring run-time modified files using timeStampMaster (fileModificationSkew 10) allowSystemOperations : Allowing user-supplied system call operations // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // Create time Creating block mesh from "system/blockMeshDict" Creating block edges No non-planar block faces defined Creating topology blocks Creating topology patches Creating block mesh topology Check topology Basic statistics Number of internal faces : 0 Number of boundary faces : 6 Number of defined boundary faces : 6 Number of undefined boundary faces : 0 Checking patch -> block consistency Creating block offsets Creating merge list . Creating polyMesh from blockMesh Creating patches Creating cells Creating points with scale 0.1 Block 0 cell size : i : 0.005 .. 0.005 j : 0.005 .. 0.005 k : 0.01 Writing polyMesh ---------------- Mesh Information ---------------- boundingBox: (0 0 0) (0.1 0.1 0.01) nPoints: 882 nCells: 400 nFaces: 1640 nInternalFaces: 760 ---------------- Patches ---------------- patch 0 (start: 760 size: 20) name: movingWall patch 1 (start: 780 size: 60) name: fixedWalls patch 2 (start: 840 size: 800) name: frontAndBack End /*---------------------------------------------------------------------------*\ ========= | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox \\ / O peration | Website: https://openfoam.org \\ / A nd | Version: 8 \\/ M anipulation | \*---------------------------------------------------------------------------*/ Build : 8-3d62498be310 Exec : decomposePar Date : May 17 2021 Time : 11:50:01 Host : "dyfluid" PID : 191395 I/O : uncollated Case : /home/dyfluid/test/test2/cavity nProcs : 1 sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE). fileModificationChecking : Monitoring run-time modified files using timeStampMaster (fileModificationSkew 10) allowSystemOperations : Allowing user-supplied system call operations // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // Create time Decomposing mesh region0 Create mesh Calculating distribution of cells Selecting decompositionMethod scotch Finished decomposition in 0 s Calculating original mesh data Distributing cells to processors Distributing faces to processors Distributing points to processors Constructing processor meshes Processor 0 Number of cells = 50 Number of faces shared with processor 1 = 10 Number of faces shared with processor 3 = 5 Number of faces shared with processor 6 = 5 Number of faces shared with processor 7 = 5 Number of processor patches = 4 Number of processor faces = 25 Number of boundary faces = 105 Processor 1 Number of cells = 50 Number of faces shared with processor 0 = 10 Number of faces shared with processor 2 = 5 Number of processor patches = 2 Number of processor faces = 15 Number of boundary faces = 115 Processor 2 Number of cells = 50 Number of faces shared with processor 1 = 5 Number of faces shared with processor 3 = 10 Number of processor patches = 2 Number of processor faces = 15 Number of boundary faces = 115 Processor 3 Number of cells = 50 Number of faces shared with processor 0 = 5 Number of faces shared with processor 2 = 10 Number of faces shared with processor 4 = 10 Number of processor patches = 3 Number of processor faces = 25 Number of boundary faces = 105 Processor 4 Number of cells = 50 Number of faces shared with processor 3 = 10 Number of faces shared with processor 5 = 10 Number of faces shared with processor 7 = 5 Number of processor patches = 3 Number of processor faces = 25 Number of boundary faces = 105 Processor 5 Number of cells = 50 Number of faces shared with processor 4 = 10 Number of faces shared with processor 7 = 5 Number of processor patches = 2 Number of processor faces = 15 Number of boundary faces = 115 Processor 6 Number of cells = 50 Number of faces shared with processor 0 = 5 Number of faces shared with processor 7 = 10 Number of processor patches = 2 Number of processor faces = 15 Number of boundary faces = 115 Processor 7 Number of cells = 50 Number of faces shared with processor 0 = 5 Number of faces shared with processor 4 = 5 Number of faces shared with processor 5 = 5 Number of faces shared with processor 6 = 10 Number of processor patches = 4 Number of processor faces = 25 Number of boundary faces = 105 Number of processor faces = 80 Max number of cells = 50 (0% above average 50) Max number of processor patches = 4 (45.4545% above average 2.75) Max number of faces between processors = 25 (25% above average 20) Time = 0 Processor 0: field transfer Processor 1: field transfer Processor 2: field transfer Processor 3: field transfer Processor 4: field transfer Processor 5: field transfer Processor 6: field transfer Processor 7: field transfer End -------------------------------------------------------------------------- mpirun was unable to find the specified executable file, and therefore did not launch the job. This error was first reported for process rank 4; it may have occurred for other processes as well. NOTE: A common cause for this error is misspelling a mpirun command line parameter option (remember that mpirun interprets the first unrecognized command line token as the executable). Node: node2 Executable: /home/dyfluid/OpenFOAM/OpenFOAM-8/platforms/linux64GccDPInt32Opt/bin/icoFoam -------------------------------------------------------------------------- | ||||
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