EPSEVSLGetDOSParameters#

Gets the parameters used for computing the density of states (DOS) in the EVSL solver.

Synopsis#

#include "slepceps.h" 
PetscErrorCode EPSEVSLGetDOSParameters(EPS eps,EPSEVSLDOSMethod *dos,PetscInt *nvec,PetscInt *deg,PetscInt *steps,PetscInt *npoints)

Not Collective

Input Parameter#

  • eps - the linear eigensolver context

Output Parameters#

  • dos - DOS method, either KPM or Lanczos

  • nvec - number of sample vectors

  • deg - polynomial degree (KPM only)

  • steps - number of Lanczos steps (Lanczos only)

  • npoints - number of sample points (Lanczos only)

See Also#

EPS: Eigenvalue Problem Solver, EPSEVSLSetDOSParameters()

Level#

intermediate

Location#

src/eps/impls/external/evsl/evsl.c

Implementations#

EPSEVSLGetDOSParameters_EVSL() in src/eps/impls/external/evsl/evsl.c

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