# block_permuted_internal_only_nfparity_E2_A

Block-sparse tensor operand converted from the TIDES `cutensor_data` dataset.

## Provenance

This tensor is operand **A** (index labels `ade`) of a DMRG
tensor-network contraction generated with ITensor and exported through cuTENSOR.

- Einsum (this contraction): `ade,afg->defg`
- Companion operand in the original contraction: **B**
- Symmetry sectors (`group = nfparity`): combinations of Ky, Sz, Nf, and Nf-parity
  quantum numbers. More sectors => more, smaller blocks.
- Source repository: https://github.com/kmp5VT/BlockSparseGPUTests

## Tensor

- Order: 3
- Dimensions: [80, 1600, 1599]
- Block grid (partitions per mode): [2, 2, 2]
- Non-zero blocks: 4
- Non-zero elements (sum of non-zero block volumes): 102336000

## Values

Values are **not** stored (`values_provided: false`). Each non-zero block is dense;
users may fill values under the metadata constraints (`value_type: float64`,
`value_domain: general`). Block coordinates are 0-based and kept in their original
order from the source `.bs` file.
