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
------------------------------
------------------------------
------------------------------
------------------------------
------------------
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