Big model problem with OpenSeesSP

[nvzitejing]

Hi, everyone

I run a big soil model using OpenSeesSP, getting a error message:

terminate called after throwing an instance of 'std::bad_alloc'
what(): std::bad_alloc

=====================================================================================
= BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
= EXIT CODE: 6
= CLEANING UP REMAINING PROCESSES
= YOU CAN IGNORE THE BELOW CLEANUP MESSAGES
=====================================================================================
APPLICATION TERMINATED WITH THE EXIT STRING: Aborted (signal 6)

How to solve it ?

Thanks in advance!

regard


nvzitejing

[fmk]

any more info? can you build the model and this fails when the analyze command is issued?

[nvzitejing]

Hi,fmk
The problem have been solved. I used -genBandArpack (default) as solver of eigen analysis. In fact with the model becoming bigger, genBandArpack was not available. Now I use SuperLU, the computing can be run. Which solver is the best using OpenSeesSP? Sometimes Mumps is not available.
Thank you for your reply!

Best wishes!

nvzitejing

[fmk]

mumps is the fastest, but only works for parallel. though you can run them as sequential applications by using n=1 with mpiexec or just starting them as you would OpenSees (at least that works on my machine, not sure if mpi needs to be installed first)