[petsc-users] Petsc Binary Write - Memory

[Satish Balay]

Whats the size of the matrix? How many non-zeros?

Satish

On Wed, 10 Jun 2015, venkatesh g 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.
> 
> cheers,
> 
> Venkatesh
>