2024年4月2日发(作者：)

ABAQUS命令汇总及参数的默认设置(ABAQUS Command

Summary and Command line default parameters)

2011-02-13 20:33:50| 分类： ABAQUS | 标签： |字号大中小 订阅

Command summary

abaqus job=job-name

select

|

odb

|

state

|

all

} | recover | syntaxcheck | information={

environment

|

local

|

memory

|

release

|

support

|

system

|

all

}]

[analysis | datacheck | parametercheck | continue | convert={

[input=input-file]

[user={source-file | object-file}]

[oldjob=oldjob-name]

[fil={

append

|

new

}]

[globalmodel={results file-name | output database file-name}]

[cpus=number-of-cpus]

[parallel={

domain

|

loop

}]

[domains=number-of-domains]

mpi

|

threads

}]

[standard_parallel={

all

|

solver

}]

[mp_mode={

[memory=memory-size]

[interactive | background | queue=[queue-name][after=time]]

[double={explicit |

both

}]

single

|

full

} ]

[scratch=scratch-dir]

[output_precision={

[madymo=MADYMO-input-file]

[port=co-simulation port-number]

[host=co-simulation hostname]

[timeout=co-simulation timeout value in seconds]

[unconnected_regions={

yes

|

no

}]

Command line default parameters

The following parameters provide default values for various settings that would otherwise have to be specified on the command line

(see “Execution procedure for Abaqus/Standard and Abaqus/Explicit,” Section 3.2.2). Values given on the command line override

values specified in the environment files.

cpus

Number of processors to use if parallel processing is available. The default is .

1

domains

The number of parallel domains in Abaqus/Explicit. If the value is greater than 1, the domain decomposition will be performed

regardless of the values of the parallel and cpus parameters. However, if parallel=

domain

, the value of cpus must be evenly

divisible into the value of domains. If this parameter is not set, the number of domains defaults to the number of processors used

during the analysis run if parallel=

domain

or to 1 if parallel=

loop

.

double_precision

The default precision version of Abaqus/Explicit to run if you do not specify the precision version on the abaqus command line.

Possible values are

EXPLICIT

(only the Abaqus/Explicit analysis is run in double precision) or

BOTH

(both the

Abaqus/Explicit packager and analysis are run in double precision). The default is

EXPLICIT

.

parallel

The default parallel method in Abaqus/Explicit if you do not specify the parallel method on the abaqus command line. Possible values

are

DOMAIN

or

LOOP

; the default value is

DOMAIN

.

run_mode

Default run mode (interactive, background, or batch) if you do not specify the run mode on the abaqus command line. The default for

abaqus analysis is

"background"

, while the default for abaqus viewer is

"interactive"

.

scratch

Directory to be used for scratch files. This directory must exist (i.e., it will not be created by Abaqus) and must have write permission

assigned. On UNIX platforms the default value is the value of the

$TMPDIR

environment variable or

/tmp

if

$TMPDIR

is

not defined. On Windows platforms the default value is the value of the

%TEMP%

environment variable or

TEMP

if this

variable is not defined. During the analysis a subdirectory will be created under this directory to hold the analysis scratch files. The

name of the subdirectory is constructed from your user name, the job id, and the job's process identifier. The subdirectory and its

contents are deleted upon completion of the analysis.

standard_parallel

The default parallel execution mode in Abaqus/Standard if you do not specify the parallel mode on the abaqus command line. If this

parameter is set equal to

ALL

, both the element operations and the solver will run in parallel. If this parameter is set equal to

SOLVER

, only the solver will run in parallel. The default parallel execution mode is

ALL

.

unconnected_regions

If this variable is set to

ON

, Abaqus/Standard will create element and node sets in the output database for unconnected regions in

the model during a datacheck analysis. Element and node sets created with this option are named

MESH

COMPONENT N

, where N is the component number. The default value is

OFF

.

System resource parameters

The following environment file variable can be set after the code has been installed to change the resources used by Abaqus and,

therefore, to improve system performance. By default, Abaqus detects the physical memory on a machine (or on each compute node in

a cluster) and allocates a percentage of the available memory based on the machine platform (for details, refer to the SIMULIA Online

Support System, which is accessible from the My Support page at ). You can override the default percentage by

specifying a number followed by the percentage sign. The variable can also be defined as the number of megabytes or the number of

gigabytes. More detailed information about changing the system resources used by Abaqus is given in “Managing memory and disk

use in Abaqus,” Section 3.4.1.

memory

Maximum amount of memory or maximum percentage of the physical memory that can be allocated during the input file preprocessing

and during the Abaqus/Standard analysis phase. For parallel execution on computer clusters, this memory limit specifies the maximum

amount of memory that can be allocated on each process.

System customization parameters

The following is a discussion of some additional environment file parameters that are commonly used. A complete listing of parameters

can be found in the Abaqus Installation and Licensing Guide.

ask_delete

If this parameter is set equal to

OFF

, you will not be asked whether old job files of the same file name should be deleted; the files will

be deleted automatically. The default value is

ON

.

auto_calculate

ON

, the postprocessing calculator will be launched automatically at the end of an analysis if the

execution procedure detects that output database file conversion is necessary. If this parameter is set to

OFF

, the postprocessing

calculator will not run at the end of an analysis even if the execution procedure detects that it is necessary. The default value is

ON

.

If this parameter is set equal to

auto_convert

ON

and an Abaqus/Explicit analysis is run in parallel with parallel=

domain

, the

convert=

select

, convert=

state

, and convert=

odb

options will be run automatically at the end of the analysis. The default value

is

ON

.

If this parameter is set equal to

average_by_section

This parameter is used only for an Abaqus/Standard analysis. If this parameter is set equal to

OFF

, the averaging regions for output

written to the data (

.dat

) file and results (

.fil

) file are based on the structure of the elements. If this parameter is set equal to

ON

,

the averaging regions also take into account underlying values of element properties and material constants. In problems with many

section and/or material definitions the default value of

of

OFF

will, in general, give much better performance than the nondefault value

mp_host_list

ON

. See “Output to the data and results files,” Section 4.1.2, for further details on the averaging scheme.

List of host machine names to be used for an MPI-based parallel Abaqus analysis, including the number of processors to be used on

each machine; for example,

mp_host_list=[['maple',1],['pine',1],['oak',2]]

indicates that, if the number of cpus specified for the analysis is 4, the analysis will use one processor on a machine called

one processor on a machine called

maple

,

pine

, and two processors on a machine called

oak

. The total number of processors defined in

the host list has to be greater than or equal to the number of cpus specified for the analysis. If the host list is not defined, Abaqus will

run on the local system. When using a supported queuing system, this parameter does not need to be defined. If it is defined, it will get

overridden by the queuing environment.

mp_mode

Set this variable equal to

MPI

to indicate that the MPI components are available on the system. Set mp_mode=

THREADS

to

use the thread-based parallelization method. The default value is

MPI

where applicable.

odb_output_by_default

If this parameter is set equal to

ON

, output database output will be generated automatically. If this parameter is set equal to

OFF

,

output database request keywords must be placed in an input file to obtain output database output. The default value is

ON

.

onCaeStartup

Optional function to be executed before Abaqus/CAE begins. See “Customizing Abaqus/CAE startup,” Section 4.3.3 of the Abaqus

Installation and Licensing Guide, for examples of this function.

Co-simulation parameters

The following environment file variables provide default settings for co-simulation between two Abaqus analyses or between Abaqus

and AcuSolve.

cosimulation_port

Set cosimulation_port equal to the port number used for the connection. The default value is

cosimulation_timeout

Set cosimulation_timeout equal to the timeout period in seconds. Abaqus terminates if it does not receive any communication from

the coupled analysis program during the time specified. The default value is

48000

.

3600

seconds.