I want to run a halo finder for the simulation snapshot. However the illustris snapshot are divided into several hdf5 files. Is there any way to combine them into one standard hdf5 file?
Dylan Nelson
17 Apr '19
Hello,
Yes this shouldn't be too hard, just decide which parttype(s) and field(s) you want to save first, create a new HDF5 file with empty datasets corresponding to the total sizes NumPart_Total, then loop over each "chunk file", load its contents, and save into the new HDF5 file in the right position.
I want to run a halo finder for the simulation snapshot. However the illustris snapshot are divided into several hdf5 files. Is there any way to combine them into one standard hdf5 file?
Hello,
Yes this shouldn't be too hard, just decide which parttype(s) and field(s) you want to save first, create a new HDF5 file with empty datasets corresponding to the total sizes
NumPart_Total, then loop over each "chunk file", load its contents, and save into the new HDF5 file in the right position.