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张壹
2025-12-17 11:00:57 +08:00
parent 2bc7b24a71
commit a09a73537f
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docs/pages/tutorial/lagrit_introduction/step_01/01_create_hex.lgi Normal file
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# Tutorial LaGriT Introduction
# Step 1. Build a Hex Mesh
# Create an empty hex mesh object called 3dmesh
cmo / create / 3dmesh / / / hex
# View the mesh object attributes
cmo / status / 3dmesh
# Define parameters that will be used to create a mesh.
# Values used will be the last written
# Mesh domain 100x50x80
define / XMIN / 0.
define / XMAX / 100.
define / YMIN / 0.
define / YMAX / 50.
define / ZMIN / 0.
define / ZMAX / 80.
# Set the number of points along each axis
# Spacing of 10 will have 11 points for length 100
define / NX / 11
define / NY / 6
define / NZ / 9
define / NZ / 17
# Create points and connect into a hex mesh
createpts/brick/xyz/ NX NY NZ / XMIN YMIN ZMIN/ XMAX YMAX ZMAX / 1,1,1
# Set materials for nodes (imt) and elements (itetlcr) to 1
# This is good practice and avoids 0 values in these atttributes
# Note 1,0,0 represents all for node start,stride,end
cmo / setatt / 3dmesh / imt / 1,0,0 / 1
cmo / setatt / 3dmesh / itetclr / 1,0,0 / 1
# Set node boundary flags in the itp attribute
# This is good practice and can be called anytime to update this array
resetpts/itp
# View Mesh Object status, brief version
cmo/status/ 3dmesh / brief
# Report the min max values of the mesh attributes
# keyword -all- or -xyz- can be used
cmo/printatt/3dmesh/ -xyz- minmax
# Check mesh with quality command
# There should be no negative or zero volumes
quality
# Write an AVS format mesh file for viewing
dump/ avs / 01_hex_mesh.inp / 3dmesh
# END of command file
finish

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docs/pages/tutorial/lagrit_introduction/step_01/01_create_hex.lgi.txt Normal file
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# Tutorial Example 1
#
# Create an empty hex mesh object called 3dmesh
cmo / create / 3dmesh / / / hex
# View the mesh object attributes
cmo / status / 3dmesh
# Define parameters that will be used to create a mesh.
# Values used will be the last written
# Mesh domain 100x50x80
define / XMIN / 0.
define / XMAX / 100.
define / YMIN / 0.
define / YMAX / 50.
define / ZMIN / 0.
define / ZMAX / 80.
# Set the number of points along each axis
# Spacing of 10 will have 11 points for length 100
define / NX / 11
define / NY / 6
define / NZ / 9
define / NZ / 17
# Create points and connect into a hex mesh
createpts/brick/xyz/ NX NY NZ / XMIN YMIN ZMIN/ XMAX YMAX ZMAX / 1,1,1
# Set materials for nodes (imt) and elements (itetlcr) to 1
# This is good practice and avoids 0 values in these atttributes
# Note 1,0,0 represents all for node start,stride,end
cmo / setatt / 3dmesh / imt / 1,0,0 / 1
cmo / setatt / 3dmesh / itetclr / 1,0,0 / 1
# Set node boundary flags in the itp attribute
# This is good practice and can be called anytime to update this array
resetpts/itp
# View Mesh Object status, brief version
cmo/status/ 3dmesh / brief
# Report the min max values of the mesh attributes
# keyword -all- or -xyz- can be used
cmo/printatt/3dmesh/ -xyz- minmax
# Check mesh with quality command
# There should be no negative or zero volumes
quality
# Write an AVS format mesh file for viewing
dump/ avs / 01_hex_mesh.inp / 3dmesh
# END of command file
finish

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docs/pages/tutorial/lagrit_introduction/step_01/01_create_hex.log Normal file
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cmo/create/3dmesh///hex
cmo/status/3dmesh
define/XMIN/0.
define/XMAX/100.
define/YMIN/0.
define/YMAX/50.
define/ZMIN/0.
define/ZMAX/80.
define/NX/11
define/NY/6
define/NZ/9
define/NZ/17
createpts/brick/xyz/NX NY NZ/XMIN YMIN ZMIN/XMAX YMAX ZMAX/1,1,1
cmo/setatt/3dmesh/imt/1,0,0/1
cmo/setatt/3dmesh/itetclr/1,0,0/1
resetpts/itp
cmo/status/3dmesh/brief
cmo/printatt/3dmesh/-xyz- minmax
quality
dump/avs/01_hex_mesh.inp/3dmesh
finish

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docs/pages/tutorial/lagrit_introduction/step_01/01_create_hex.out.txt Normal file
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* * * * * * * * * * * * * * * * * * * * * * * * *
* * *
* * Program: LaGriT V3.3.4 Linux *
* * Compiler Name: GNU *
* * Compiler Version: 9.4.0 *
* * Date Compile: 2024/05/06 *
* * Run Time: 2025/Jan 16 16:17:30 *
* * Manual: https://lagrit.lanl.gov *
* * *
* * * * * * * * * * * * * * * * * * * * * * * * *
-----oOo-----
LaGriT V3 LA-CC-15-069 https://github.com/lanl/LaGriT
Copyright 2016. Triad National Security, LLC. All rights reserved. This
program was produced under U.S. Government contract 89233218CNA000001
for Los Alamos National Laboratory (LANL), which is operated by Triad
National Security, LLC for the U.S. Department of Energy/National Nuclear
Security Administration. All rights in the program are reserved by Triad
National Security, LLC, and the U.S. Department of Energy/National Nuclear
Security Administration. The Government is granted for itself and others
acting on its behalf a nonexclusive, paid-up, irrevocable worldwide license
in this material to reproduce, prepare derivative works, distribute copies
to the public, perform publicly and display publicly, and to permit others to
do so. This software is open source and available under the BSD-3 License.
-----oOo-----
Output log file: lagrit.out
Command log file: lagrit.log
# Tutorial Example 1
#
# Create an empty hex mesh object called 3dmesh
cmo/create/3dmesh///hex
# View the mesh object attributes
cmo/status/3dmesh
The current-mesh-object(CMO) is: 3dmesh
1 Mesh Object name: 3dmesh
number of nodes = 0 number of elements = 0
dimensions geometry = 3 element type = hex
dimensions topology = 3 8 nodes 6 faces 12 edges
boundary flag = 16000000 status = active
NAME TYPE RANK LENGTH INTER PERSI IO VALUE
1 -def- VDOU scalar nnodes linea tempo agl 0.000E+00
2 scalar INT scalar scalar const perma l 1.000E+00
3 vector INT scalar scalar const perma l 3.000E+00
4 nnodes INT scalar scalar const perma l 0.000E+00
5 nedges INT scalar scalar const perma l 0.000E+00
6 nfaces INT scalar scalar const perma l 0.000E+00
7 nelements INT scalar scalar const perma l 0.000E+00
8 mbndry INT scalar scalar const perma l 1.600E+07
9 ndimensions_top INT scalar scalar const perma l 3.000E+00
10 ndimensions_geo INT scalar scalar const perma l 3.000E+00
11 nodes_per_eleme INT scalar scalar const perma l 8.000E+00
12 edges_per_eleme INT scalar scalar const perma l 1.200E+01
13 faces_per_eleme INT scalar scalar const perma l 6.000E+00
14 isetwd VDOU scalar nnodes or perma l 0.000E+00
15 ialias VINT scalar nnodes seque perma l 0.000E+00
16 imt1 VINT scalar nnodes max perma gal 0.000E+00
17 itp1 VINT scalar nnodes min perma gal 0.000E+00
18 icr1 VINT scalar nnodes min perma gal 0.000E+00
19 isn1 VINT scalar nnodes user perma gal 0.000E+00
20 xic VDOU scalar nnodes linea perma l 0.000E+00
21 yic VDOU scalar nnodes linea perma l 0.000E+00
22 zic VDOU scalar nnodes linea perma l 0.000E+00
23 xtetwd VDOU scalar nelements or perma l 0.000E+00
24 itetclr VINT scalar nelements user perma l 0.000E+00
25 itettyp VINT scalar nelements user perma l 0.000E+00
26 itetoff VINT scalar nelements user perma l 0.000E+00
27 jtetoff VINT scalar nelements user perma l 0.000E+00
28 itet VINT nodes_per_ nelements user perma l 0.000E+00
29 jtet VINT faces_per_ nelements user perma l 0.000E+00
30 ipolydat CHAR scalar scalar const perma l no
31 vor2d CHAR scalar scalar const perma l yes
32 vor3d CHAR scalar scalar const perma l no
33 epsilon REAL scalar scalar const perma l 1.000E-15
34 epsilonl REAL scalar scalar const perma l 1.000E-08
35 epsilona REAL scalar scalar const perma l 1.000E-08
36 epsilonv REAL scalar scalar const perma l 1.000E-08
37 ipointi INT scalar scalar const perma l 0.000E+00
38 ipointj INT scalar scalar const perma l 0.000E+00
39 idebug INT scalar scalar const perma l 0.000E+00
40 itypconv_sm INT scalar scalar const perma l 1.000E+00
41 maxiter_sm INT scalar scalar const perma l 2.500E+01
42 tolconv_sm REAL scalar scalar const perma l 1.000E+00
43 nnfreq INT scalar scalar const perma l 1.000E+00
44 ivoronoi INT scalar scalar const perma l 1.000E+00
45 iopt2to2 INT scalar scalar const perma l 2.000E+00
46 dumptype CHAR scalar scalar const perma l binary
47 velname CHAR scalar scalar const perma l vels
48 densname CHAR scalar scalar const perma l ric
49 presname CHAR scalar scalar const perma l pic
50 enername CHAR scalar scalar const perma l eic
51 xmin REAL scalar scalar const perma l -1.000E+00
52 ymin REAL scalar scalar const perma l -1.000E+00
53 zmin REAL scalar scalar const perma l -1.000E+00
54 xmax REAL scalar scalar const perma l 1.000E+00
55 ymax REAL scalar scalar const perma l 1.000E+00
56 zmax REAL scalar scalar const perma l 1.000E+00
57 kdtree_level INT scalar scalar const perma l 0.000E+00
58 max_number_sets INT scalar scalar const perma l 6.400E+01
59 number_of_psets INT scalar scalar const perma l 0.000E+00
60 number_of_eltse INT scalar scalar const perma l 0.000E+00
61 psetnames VCHA scalar max_number_sets const perma l
62 eltsetnames VCHA scalar max_number_sets const perma l
63 geom_name CHAR scalar max_number_sets const perma l -defaultge
64 fsetnames VCHA scalar max_number_sets const perma l
65 number_of_fsets INT scalar scalar const perma l 0.000E+00
# Define parameters that will be used to create a mesh.
# Values used will be the last written
# Mesh domain 100x50x80
define/XMIN/0.
define/XMAX/100.
define/YMIN/0.
define/YMAX/50.
define/ZMIN/0.
define/ZMAX/80.
# Set the number of points along each axis
# Spacing of 10 will have 11 points for length 100
define/NX/11
define/NY/6
define/NZ/9
define/NZ/17
# Create points and connect into a hex mesh
createpts/brick/xyz/NX NY NZ/XMIN YMIN ZMIN/XMAX YMAX ZMAX/1,1,1
Number of nodes: 1122
Number of elements: 800
Number of negative volume elements: 0
Total volume: 0.400000000000E+06
# Set materials for nodes (imt) and elements (itetlcr) to 1
# This is good practice and avoids 0 values in these atttributes
# Note 1,0,0 represents all for node start,stride,end
cmo/setatt/3dmesh/imt/1,0,0/1
1122 values reset for attribute imt1
cmo/setatt/3dmesh/itetclr/1,0,0/1
800 values reset for attribute itetclr
# Set node boundary flags in the itp attribute
# This is good practice and can be called anytime to update this array
resetpts/itp
geniee
finish
# View Mesh Object status, brief version
cmo/status/3dmesh/brief
The current-mesh-object(CMO) is: 3dmesh
1 Mesh Object name: 3dmesh
number of nodes = 1122 number of elements = 800
dimensions geometry = 3 element type = hex
dimensions topology = 3 8 nodes 6 faces 12 edges
boundary flag = 16000000 status = active
# Report the min max values of the mesh attributes
# keyword -all- or -xyz- can be used
cmo/printatt/3dmesh/-xyz- minmax
ATTRIBUTE NAME MIN MAX DIFFERENCE LENGTH
xic 0.000000000E+00 1.000000000E+02 1.000000000E+02 1122
yic 0.000000000E+00 5.000000000E+01 5.000000000E+01 1122
zic 0.000000000E+00 8.000000000E+01 8.000000000E+01 1122
# Check mesh with quality command
# There should be no negative or zero volumes
quality
epsilonl, epsilonaspect: 3.0526086E-11 2.8445488E-32
--------------------------------------------
elements with aspect ratio < .01: 0
elements with aspect ratio b/w .01 and .02: 0
elements with aspect ratio b/w .02 and .05: 0
elements with aspect ratio b/w .05 and .1 : 0
elements with aspect ratio b/w .1 and .2 : 0
elements with aspect ratio b/w .2 and .5 : 0
elements with aspect ratio b/w .5 and 1. : 800
min aspect ratio = 0.1000E+01 max aspect ratio = 0.1000E+01
epsilonvol: 8.8817842E-08
---------------------------------------
All elements have volume 5.0000000E+02
-----------------------------------------------------------
800 total elements evaluated.
# Write an AVS format mesh file for viewing
dump/avs/01_hex_mesh.inp/3dmesh
cmo/modatt/-def-/-def-/ioflag/x
finish
# END of command file
finish
LaGriT successfully completed

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cmo/create/3dmesh///hex
cmo/status/3dmesh
define/XMIN/0.
define/XMAX/100.
define/YMIN/0.
define/YMAX/50.
define/ZMIN/0.
define/ZMAX/80.
define/NX/11
define/NY/6
define/NZ/9
define/NZ/17
createpts/brick/xyz/NX NY NZ/XMIN YMIN ZMIN/XMAX YMAX ZMAX/1,1,1
cmo/setatt/3dmesh/imt/1,0,0/1
cmo/setatt/3dmesh/itetclr/1,0,0/1
resetpts/itp
cmo/status/3dmesh/brief
cmo/printatt/3dmesh/-xyz- minmax
quality
dump/avs/01_hex_mesh.inp/3dmesh
finish