El 02/12/2014, a las 09:20, siddhesh godbole escribió: > Hello , > > I am a novice in using PETSC. Right now I am solving a cantilever beam > vibration problem with PETSc in which i am using SLEPc to compute the eigen > values. But in order to diagonalize the K and M matrices i need a full eigen > matrix and all eigen values. > What i see from all the tutorial help related to SLEPc is that it computes > only certain number of eigenvalues which fall in some range or order. > > Please clarify me if i am ignorant about full usage of SLEPc and kindly > suggest some way out. > > sincerely > > Siddhesh M Godbole > IIT Madras
SLEPc is intended for large-scale eigenproblems, where you compute only part of the eigenvalue/eigenvector pairs because computing/storing all of them would be unaffordable. For small-medium problems use LAPACK or ScaLAPACK. Jose
