Hello,

I'm currently trying to do a MPI_Comm_Spawn of a "non-MPI" application which its launched via a script (well, its an MPI application which handles the connection by itselfr).

But my parent process is blocking on MPI_Comm_Spawn call, i guess that's because my script won't do any MPI_Init.

Is there a way to configure MPI_Comm_Spawn so it doesn't block? (or doesn't expect MPI_Init, like the ompi_non_mpi in open-mpi MPI_Info structure which it's passed to MPI_Comm_Spawn).

Hopefully this is in the right place. I recently acquired 5 1U rackmount server nodes from a business and would like to cluster them for my own private use for MPI programming. (Research for my degree mostly) 

I have not successfully set up a cluster before, and am having issues figuring out where to start. I've looked at many older guides on clustering, but many leave out important setup details or utilize software that is long retired. I was wondering if anybody had any suggested material/advice for getting this mini-cluster set up.

My hardware includes:

Two questions, first on the Cluster Studio installation.

In the document, software "expect" is needed to make the ssh connectivity between nodes of the cluster. However, in my current cluster, all my nodes can ssh to each other without password. I wonder whether I can skip this "expect" requirement, since I do not want to complicate the existing ssh environment.

Second question, on using Intel MPI

The Intel® Cluster Studio XE 2013 for Linux* and Windows* combines all Intel® Parallel Studio XE and Intel® Cluster Tools into a single package. This multi-component software toolkit contains the core libraries and tools to efficiently develop, optimize, run, and distribute parallel applications for clusters with Intel processors. This package is for cluster users who develop on and build for IA-32 and Intel® 64 architectures on Linux* and Windows*, as well as customers running over the Intel® Xeon Phi™ coprocessor on Linux*.

It contains: