COMBINE,
FileType, NUM
Combines distributed memory parallel (Distributed ANSYS) files.
FileTypeType of solution file to combine. There is no default; if (blank), the command is ignored.
RST | — | Structural results file (.RST) |
RTH | — | Thermal results file (.RTH) |
RMG | — | Magnetics results file (.RMG) |
RSTP | — | Linear perturbation results file (.RSTP) |
EMAT | — | Element matrix file (.EMAT). |
ESAV | — | Element saved data file (.ESAV) |
MODE | — | Modal results file (.MODE) |
MLV | — | Modal load vector file (.MLV) |
IST | — | Initial state file (.IST) |
FULL | — | Full matrix file (.FULL) |
RFRQ | — | Reduced complex displacement file (.RFRQ) |
RDSP | — | Reduced displacement file (.RDSP) |
RNNN | — | Multiframe restart files
(.R |
NUMNumber of .Rnnn files to combine:
ALL | — | Combine all .R |
| — | Combine only .R |
The COMBINE command is used within the AUX2 auxiliary processor to combine local solution files from a distributed memory parallel solution into a single, global file. Before using this command, you must enter the AUX2 processor by issuing the /AUX2 command.
In a distributed memory parallel (Distributed ANSYS) solution, you can use the
DMPOPTION command to bypass the file combination step, causing all
individual local files to be kept on the local disks in the current working directory. Later
on, you can start a new distributed memory parallel solution and use the
COMBINE command to combine local files into a global file for a
downstream solution or another operation (such as postprocessing with
/POST1). For example, the command COMBINE,RST will
combine local results files (JobnameN.RST)
into a global results file (Jobname.RST).
The COMBINE command cannot be used to combine local files generated during a distributed memory parallel solution that used the frequency or cyclic harmonic index domain decomposition method (DDOPTION,FREQ or DDOPTION,CYCHI).
If COMBINE,RNNN is specified, all of the multiframe
restart files named Jobname.R001 to Jobname.R999
will automatically be combined. To combine only one set of
.Rnnn restart files, place only that set
of restart files in your current working directory, or use the NUM
argument to specify which set of .Rnnn files
to combine.
When the COMBINE command is used in a subsequent Distributed ANSYS session, the number of processors must be the same as in the distributed memory parallel solution that generated the files.
When running on a cluster, the local solution files must be available in the working directory on each node in the subsequent session. As an example, consider the following command line used to generate local solution files:
ansys182 -dis -machinesmachine1:4:machine2:1:machine3:2-i input -o output
Different machines can be used in the subsequent session to combine these files. However, the total number of cores must remain unchanged (seven in the above case), and the local files must be copied to the working directory (or directories) on each of the machines used in the subsequent session.