Thanks for your reply, David. I tried to the command "mpirun -np N" in the RB example 5, but there was a problem that the same code is running repeatedly as follows. ============================================================================================ $ mpirun -np 3 ./example-opt ... (skip) ... ---- Performing Greedy basis enrichment ---- ---- Basis dimension: 0 ---- Performing RB solves on training set Maximum error bound is 90.1602 Performing truth solve at parameter: load_Fx: -3.274396e+00 load_Fy: -4.127732e+00 load_Fz: 9.887087e-01 point_load_Fx: -4.856018e+00 point_load_Fy: -4.622528e+00 point_load_Fz: 4.774231e+00 x_scaling: 1.146354e+00 ---- Performing Greedy basis enrichment ---- ---- Basis dimension: 0 ---- Performing RB solves on training set Maximum error bound is 90.1602 Performing truth solve at parameter: load_Fx: -3.274396e+00 load_Fy: -4.127732e+00 load_Fz: 9.887087e-01 point_load_Fx: -4.856018e+00 point_load_Fy: -4.622528e+00 point_load_Fz: 4.774231e+00 x_scaling: 1.146354e+00 ---- Performing Greedy basis enrichment ---- ---- Basis dimension: 0 ---- Performing RB solves on training set Maximum error bound is 90.1602 Performing truth solve at parameter: load_Fx: -3.274396e+00 load_Fy: -4.127732e+00 load_Fz: 9.887087e-01 point_load_Fx: -4.856018e+00 point_load_Fy: -4.622528e+00 point_load_Fz: 4.774231e+00 x_scaling: 1.146354e+00 Enriching the RB space Enriching the RB space Updating RB matrices Updating RB matrices Updating RB residual terms Updating RB residual terms Enriching the RB space Updating RB matrices Updating RB residual terms ---- Basis dimension: 1 ---- Performing RB solves on training set ---- Basis dimension: 1 ---- Performing RB solves on training set Maximum error bound is 337.302 Performing truth solve at parameter: load_Fx: -1.545951e-01 load_Fy: -2.327825e+00 load_Fz: 3.578962e+00 point_load_Fx: 8.882769e-01 point_load_Fy: 5.864229e-01 point_load_Fz: 4.982374e+00 x_scaling: 1.228777e+00 Maximum error bound is 337.302 Performing truth solve at parameter: load_Fx: -1.545951e-01 load_Fy: -2.327825e+00 load_Fz: 3.578962e+00 point_load_Fx: 8.882769e-01 point_load_Fy: 5.864229e-01 point_load_Fz: 4.982374e+00 x_scaling: 1.228777e+00 ---- Basis dimension: 1 ---- Performing RB solves on training set Maximum error bound is 337.302 Performing truth solve at parameter: load_Fx: -1.545951e-01 load_Fy: -2.327825e+00 load_Fz: 3.578962e+00 point_load_Fx: 8.882769e-01 point_load_Fy: 5.864229e-01 point_load_Fz: 4.982374e+00 x_scaling: 1.228777e+00 Enriching the RB space Updating RB matrices Enriching the RB space Updating RB matrices Updating RB residual terms Updating RB residual terms Enriching the RB space Updating RB matrices Updating RB residual terms ---- Basis dimension: 2 ---- Performing RB solves on training set ---- Basis dimension: 2 ---- Performing RB solves on training set Maximum error bound is 469.21 ... (skip) ... ---- Basis dimension: 15 ---- Performing RB solves on training set ---- Basis dimension: 15 ---- Performing RB solves on training set ---- Basis dimension: 15 ---- Performing RB solves on training set Maximum error bound is 2.50754 Maximum number of basis functions reached: Nmax = 15 *** Warning, This code is deprecated, and likely to be removed in future library versions! ./include/libmesh/mesh_tools.h, line 70, compiled Aug 25 2017 at 02:15:21 *** Maximum error bound is 2.50754 Maximum number of basis functions reached: Nmax = 15 *** Warning, This code is deprecated, and likely to be removed in future library versions! ./include/libmesh/mesh_tools.h, line 70, compiled Aug 25 2017 at 02:15:21 *** Maximum error bound is 2.50754 Maximum number of basis functions reached: Nmax = 15 *** Warning, This code is deprecated, and likely to be removed in future library versions! ./include/libmesh/mesh_tools.h, line 70, compiled Aug 25 2017 at 02:15:21 *** (end) ==================================================================================================================================================== Other examples had the same problem, too. Did I type the command wrong? If not, I want to know what is wrong. Best regards, Kang ----- Original Message ----- From: David Knezevic <david.kneze...@akselos.com> To: "S. Kang" <ss.k...@pusan.ac.kr> Cc: Libmesh user group <libmesh-users@lists.sourceforge.net> Date: Mon, 12 Feb 2018 22:28:09 +0900 (GMT) subject: Re: [Libmesh-users] Using multi-core in execution files Hello, You can run the reduced basis code in parallel. You do it just the same way that you run any other libMesh code in parallel, i.e. just run with "mpirun -np N" where N specifies the number of processors that you want to use. If you want more info on the parallelization approach that is used, please refer to this paper. Best, David On Sun, Feb 11, 2018 at 9:30 PM, S. Kang <ss.k...@pusan.ac.kr> wrote: Hello everyone, I am solving RB problems, but it takes too long because of many basis vectors. So, similar to "make -j 10", I want to know how to use multi-core in execution files, not parallel programming. Best regards, S. Kang. ------------------------------ ------------------------------ Shinseong Kang Graduate Student Pusan National University, South Korea H.P.: 010-9770-6595 E-mail: ss.k...@pusan.ac.kr ------------------------------ ------------------------------ ------------------------------ ------------------------------ ------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot ______________________________ _________________ Libmesh-users mailing list Libmesh-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libmesh-users ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Libmesh-users mailing list Libmesh-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libmesh-users

- [Libmesh-users] Using multi-core in execution files S. Kang
- Re: [Libmesh-users] Using multi-core in execution file... David Knezevic
- Re: [Libmesh-users] Using multi-core in execution ... 강신성
- Re: [Libmesh-users] Using multi-core in execut... David Knezevic