Learning Forum

[shk1048]

My simulations with MDO cases had a huge data in the folder. I have to perform it in my personal laptop are there any tips that I can clear all the d3plots and retain some of the lst files that are important?

Thanks in advance

[Ashish Khemka]

Please see if the following information helps you:

Reduce D3PLOT File Size for RigidBodies ÔÇô d3VIEW

FEMZIP | Oasys LS-DYNA (oasys-software.com)

ls-dyna_database (dynasupport.com)

Regards Ashish Khemka

[Imtiaz Gandikota]

Couple of options,
Try using a "clean" file. Place a file "clean.bat" in the working directory. This file is executed after a job is completed and results are extracted. This file can contain file deletion commands. For example, "del .\d3plot*" command for Windows to delete all d3plot files of the run. Please test this file using a simple example before using it in your MDO runs. Note that this file is not executed for first run (i.e. 0.1 run).
Use d3part database option instead of d3plot. d3part is similar to d3plot but contains less data.

[shk1048]

Is there any clean.bat available as an example?

[shk1048]

How can i make the clean file such that it does not delete only for the first run and does this mean I only have to retain for 0.1 or also 1.1, 2.1 etc..?
What is the reason to retain this file 0.1? I think this can also help me to understand the workflow of lstsac

[Imtiaz Gandikota]

Create a text file, name it clean and change the extension to .bat from .txt (on Linux, it could be a bash/sh script). Edit the file and enter below command to delete all d3plot files. This file is copied to each job directory and executed after results are extracted.
Windows: del d3plot*
Linux: rm d3plot*
I just checked using a simple example. 0.1 is not retained. clean.bat is executed in all job directories. LS-TaSC job scheduler is similar to LS-OPT and "clean" option was originally implemented in LS-OPT where first (baseline) and last design (optimum) are skipped from cleaning. I assumed ls-tasc behaves the same but apparently not.

[shk1048]

I wrote a clean file which skips the 0.1 simulation results. But I didnot get a clarity if 1.1 and 2.1 will also be needed??
rm -rf $SUBDIR/adptmp $SUBDIR/elout $SUBDIR/d3hsp
rm -rf $SUBDIR/scr00* $SUBDIR/dyna.str
rm -rf $SUBDIR/dbout.*
rm -rf $SUBDIR/d3plot* $SUBDIR/scr00*

[Imtiaz Gandikota]

1.1, 2.1, etc are not skipped. Ideally, it is better to retain d3plot files of all iterations until your ls-tasc run is completed, just in case you need them for a restart, but if disk space is a concern, I would delete the files. There is not much difference in keeping 2.1 files vs. 2.2 files.

[shk1048]

Is it a good idea to reduce the d3plot step size, may be having just 4 d3plots..I have read that the IED informations is conveyed by d3plot. So, just wanted to be sure before I reduce the steps of animation