A New Array Format for Symmetric and Triangular Matrices

@inproceedings{Gunnels2004ANA,
  title={A New Array Format for Symmetric and Triangular Matrices},
  author={John A. Gunnels and Fred G. Gustavson},
  booktitle={PARA},
  year={2004}
}
We introduce a new data format for storing triangular and symmetric matrices called HFP (Hybrid Full Packed). The standard two dimensional arrays of Fortran and C (also known as full format) that are used to store triangular and symmetric matrices waste half the storage space but provide high performance via the use of level 3 BLAS. Packed format arrays fully utilize storage (array space) but provide low performance as there are no level 3 packed BLAS. We combine the good features of packed and… CONTINUE READING

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