Since large ADC calculations may take a considerable time it would be nice to checkpoint or archive it for later use. This roughly requires the following
[ ] A way to serialise a libtensor Tensor object to hdf5
Serialise the symmetry information
Serialise the data (using ideally only the canonical blocks)
[ ] A way to load a libtensor Tensor object from hdf5
Basically undo the above
[ ] A way to in serialise the symmetry setup of a particular calculation
[ ] A way to load the symmetry setup of a particular calculation and reuse it.
Since large ADC calculations may take a considerable time it would be nice to checkpoint or archive it for later use. This roughly requires the following