- auto_convert
-
If this parameter is set equal to 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 if required. The
default value is ON.
- cpus
-
Number of processors to use during an analysis run if parallel processing is
available. The default value for this parameter 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 variables. 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.
- gpus
-
Activate direct solver acceleration using
GPGPU hardware in
Abaqus/Standard.
The value of this parameter should be the number of
GPGPUs to use for an analysis. In an
MPI-based parallel
Abaqus/Standard
analysis, this is the number of GPGPUs to use
on each host.
- max_cpus
-
Maximum number of processors allowed if parallel processing is available. If
this parameter is not set, the number of processors allowed equals the number
of available processors on the system.
- mp_file_system
-
Type of file system available for an
MPI-based parallel
Abaqus
analysis. The parameter must be set to a tuple; for example,
mp_file_system=(SHARED,LOCAL)
The first item in the tuple refers to the directory where the job was
submitted, while the second refers to the job's scratch directory. If the file
system hosting a directory is LOCAL,
Abaqus
will copy the required analysis files to the remote host machines and, at the
end of the run, copy the output files back. In this case it must be possible to
create the job's directory structure on all the hosts in
mp_host_list. A
SHARED file system means that the host machines
share the same file system and file transfer is not necessary. With the
recommended default (DETECT,
DETECT) setting,
Abaqus
will determine the type of file system that exists. An
MPI-based parallel
Abaqus/Explicit
analysis will use the scratch directory only if a user subroutine is used,
whereas
Abaqus/Standard
normally writes large temporary files in this directory. Running on a local
file system will generally improve the performance.
- mp_host_list
-
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 maple, one processor on a machine
called 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.
- mp_mpi_implementation
-
This variable determines the underlying MPI
implementation to use. Generally, this variable does not need to be specified.
- mp_mpirun_options
-
String of options that are passed to the MPI launcher for an
MPI-based parallel
Abaqus
analysis. Generally this variable does not need to be specified.
- mp_mpirun_path
-
A dictionary to define the full path to the MPI launcher for a given MPI
implementation. For example, on
Windows,
mp_mpirun_path={NATIVE: 'C:\\Program Files\\
Microsoft HPC Pack 2008 R2\\bin\\mpiexec.exe'}
- mp_num_parallel_ftps
-
When performing parallel file staging using
MPI-based parallelization, this parameter
controls the number of simultaneous MPI file transfers. The first item controls
the transfer of files to and from the temporary scratch directory. The second
item controls the transfer of files to and from the analysis working directory.
Setting either value to 1 disables the parallel file staging process. The use
of file staging depends on the values specified in
mp_file_system.
- mp_rsh_command
-
Preferred command to open a remote shell on the machines specified by
mp_host_list.
Abaqus
needs to open a remote shell to create and remove directories and files if the
file system is not shared. The default value for this option is platform
dependent; for example,
mp_rsh_command='ssh -n -l %U %H %C'
The following placemarkers are used:
- %U
-
Username.
- %H
-
The host where the remote shell is opened.
- %C
-
The command to be executed on the host.
Abaqus
automatically uses secure copy (scp) to copy files to and
from remote hosts if this parameter is set to use secure shell. By default,
this parameter is ignored in favor of built-in MPI rsh/scp
commands.
- order_parallel
-
The default direct solver ordering mode in
Abaqus/Standard
if you do not specify the parallel ordering mode on the
abaqus command line. If this parameter is set equal
to OFF, the solver ordering will not be
performed in parallel. If this parameter is set equal to
ON, the solver ordering will be run in
parallel. The default for parallel solver ordering is
ON.
- parallel
-
The default parallel equation solution method in
Abaqus/Explicit
if the user does not specify the parallel method on the
abaqus command line. Possible values are
DOMAIN or LOOP;
the default value is DOMAIN.
- 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.