[petsc-users] matload big matrix

[Barry Smith]

   What version of PETSc is this? How was the file generated?  How many processes are you using? Does it work on less processes (like 1, 2 )?  How many nonzeros in the matrix (roughly)? 

   Barry




> Hi,
> 
> I am trying to load a big matrix(size 552147 by 552147) from a binary file(around 2GB). But I found my code seems to get stuck at the loading stage. I copied the last a few info output below 
> 
> [0] PetscCommDuplicate(): Using internal PETSc communicator 1140850688 -2080374780
> [0] PetscFileRetrieve(): Found file l2projphim.dat
> [0] PetscFileRetrieve(): Found file l2projphim.dat.info
> [0] PetscOptionsInsertFile(): Opened options file l2projphim.dat.info
> 
> Do you have any suggestions? Thanks.
> 
> Regards,
> Wen
> 
>