dims[0] not the number of rows

[nathanielmorgan]

The DRaggedRightArrayKokkos type uses the dims_[0] = strides_array.size(); The comment in MATAR is wrong for defining dims_[0]. For clarity of reading, a better approach is:
dims_[0] = strides_array.dims(0);

[nathanielmorgan]

place a check that strides_array is a 1D array