Learning Forum

[Fady Elshazly]

Hello, 

 

I am trying to read a binary file from LSDYNA using Dynareadout. I have generated the file for 6000 nodes. When I READ THE BINOUT0008 file, it gives me about 10% of the run time. Why it doesnt have the total run time?. The folder also contains binout0008%001, binout0008%002 up to %011. Why it is not saving up to 100%. (the generated binout0008 file size is almost 1 GB) is there any binary file size limitation that may cause this problem? 

 

 

another question: when I try to read the complete binary file (binout0000) or the d3plot file using Jupyter notebook or Spyder using dynareadout, the kernel stops working or crashes. What would be the reason for that knowing that the model has about 106000 nodes. 

Thanks 

[Imtiaz Gandikota]

For MPP runs, ls-dyna will generate binout files based on the processor that is being used to output the data. For example, if "nodout" is desired, only processors having some data to go out to the nodout file will participate in its output, and the lowest numbered processor (say for example, 8) will then write that output to a binout file with its number (in this case, binout0008).

If there is lot of data to output, any binoutXXXX file will then generate a "family" of files named binoutXXXX%001, binoutXXXX%002 and so on (each about 1GB in size). See b

Are you able to read the binout file in LS-PrePost? You can also download "l2a" binary, provided with mpp executables, to dump data from binout files to ASCII files. You can also download LSDA package from our ftp site to build a custom l2a binary.

 

[Fady Elshazly]

Do you mean that i need to combine all the binary ( binoutXXXX%001, binoutXXXX%002, ...) files to get the100% time? When i try to read any of the binoutXXXX%001, the notebook crashes.  I can only read the file without any %.

 

Please, Can you provide the instructions to install L2a?

 

Thanks 

 

 

[Imtiaz Gandikota]

Yes, each file has partial data. 

The mpp solver distribution comes with "l2a" binary. Extract the contents of the tar file and you should see ls-dyna executable and matching l2a executable. The command to extract ASCII files is simply,

/path/l2a binout0000 (only the first file is needed in the command)

You can also download "l2a" from here https://ftp.lstc.com/user/mpp-dyna/R13.0.0/x86-64/. Please check with your ls-dyna sources for login information to access this link. You will also find LSDA package from here (https://ftp.lstc.com/user/lsda/), to build custom "l2a" binaries.