HP-MPI Version 1.0 for Windows Release Note

HP-MPI V1.0 for Windows Release Note

Quick Sanity Check Test

Building and running on a single host

To run single host as a sanity check, use a command such as:

"%MPI_ROOT%\bin\mpirun" -np 2 .\hello_world.exe

Building and running multihost through CCP

To run using CCP:

1. Create a new job requesting the number of CPUs to use. Resources are not yet allocated,

but the job is given a JOBID number which is printed to stdout:

> job new /numprocessors:16

2. Add a single-CPU mpirun task to the newly created job. Note that mpirun will create more

tasks filling the rest of the resources with the compute ranks, resulting in a total of 16

compute ranks for this example:

> job add JOBID /numprocessors:1

/stdout:\path\to\a\shared\file.out

/stderr:\path\to\a\shared\file.err

"%MPI_ROOT%\bin\mpirun" -ccp \path\to\hello_world.exe

3. Submit the job. The machine resources are allocated and the job is run.

> job submit /id:JOBID

To run Multiple-Program Multiple-Data (MPMD) applications or other more complex

configurations that require further control over the application layout or environment,

dynamically create an appfile within the job using the utility

"%MPI_ROOT%\bin\mpi_nodes.exe" as in the following example. Note that the environment

variable %CCP_NODES% cannot be used for this purpose because it only contains the single CPU

resource used for the task that executes the mpirun command. See “Running HP-MPI from

CCP” on page 15:

1. Create a new job.

> job new /numprocessors:16

2. Submit a script. Verify MPI_ROOT is set in the environment (See the man page mpirun(1)

for more information):