pdgemr2d: copy between grids

Christoph_P_2 — Tue, 09 Jun 2015 15:02:19 GMT

Hello,

I'd like to accomplish the following on a cluster-computer with nproc processors:

1. define two blacs grids, the first of the form p x q = nprocs, the second of the form 1 x 1, which is also just the root process

2. use pdgemr2d to copy a distributed matrix from the first grid to the second

I am already stuck at point 1.

So here are my questions:

a) Do I have to initialize two MPI communicators and define the blacs contexts in these?

b) If not, how do I create two separate blacs contexts?

Thanks a lot in advance!

Chris

Hi Christoph,

VipinKumar_E_Intel — Wed, 10 Jun 2015 05:52:26 GMT

Hi Christoph,

I found this tut on the net, and may be helpful to your questions.

--Vipin