On Wed, Jun 10, 2015 at 6:52 AM, venkatesh g <[email protected]> wrote:
> Hi > > I am trying to write very large sparse matrices A and B for solving > generalized Eigenvalue problem > > so that I can use SLEPC ex7.c code. > > I want to read matrices from file according to that code. And I generate > these matrices from Matlab using PetscBinaryWrite.m > > However, it exceeds my 256 GB RAM in one of the machines. So I am unable > to generate these binary matrices. > > Kindly let me know how to write them efficiently. > Consider writing C code to generate the matrix? I am not sure what else to propose. It sounds like you need to generate the matrix progressively and write portions, or you need to generate the entries in parallel. Matt > cheers, > > Venkatesh > -- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener
