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PNNL: High Performance Computing

PeIGS parallel eigensolver library

The PeIGS library contains subroutines for solving standard and generalized real symmetric eigensystems. All eigenvalues and eigenvectors can be computed.

PeIGS incorporates scalable

  • data structures: compact storage, column distribution with panel-block computation; and
  • algorithms including inverse iteration with repeated reorthogonalization.

The library is implemented using message-passing model and is portable across many platforms.

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