Parallel Sparse Matrix-Vector Multiplication?

[panther]

Hi all,

Could someone tell me if there are any parallel implementations of a sparse matrix-vector multiply routine (using CSR representation) within the ScaLAPACK library, when both vectors and matrices are distributed . If not, I would be grateful if anyone could direct me to any external routines they are aware of that can perform this task.

Thanks in advance,

Tim.

[buttari]

Hi,
there are no sparse operations in ScaLAPACK. Anyway there a number of packages for that:

PETSc
PSBLAS
TRILINOS
AZTEC
etc

You can find a list of linear algebra packages (including those for sparse operations) here:
http://www.netlib.org/utk/people/JackDo ... la-sw.html

Alfredo

[panther]

Alfredo,

Thanks for that info. I am sure there is something there that can help me.

Best Wishes.