Is it allowed to have two xdmf files, one for visualization the other for checkpoint, they will be written at different times

I/O
1

Hi All,

I’m wondering if it is possible to have two independent xdmf files, one for visualization the other for checkpoint. For long simulations, we could store xdmf and corresponding data (.h5 file) say every 25 steps for visualization to save hard drive space (not every step), also we could store another separate xdmf every 1234 steps for checkpointing in case we want to restart from a checkpoint. The open source software TerraFERMA can do that. I think FEniCS can do that too, but don’t know how.

Another thing is that the step number when two xdmd’s store info should be divisible or not, e.g., every 25 steps for visualization and every 1000 steps for checkpointing v.s. every 25 steps for visualization and every 1234 steps for checkpointing.

Any suggestion or comment? Thanks!

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Should be possible to implement with a simple loop and appropriate if conditions.