Resources for IT Professionals >
Forums Home
>
Windows HPC (High Performance Computing) Forums
>
Windows HPC Server Message Passing Interface (MPI)
>
How to evenly create the processors on the nodes.
How to evenly create the processors on the nodes.
- I have a MPI program running on the Windows HPC cluster. The cluster have 50 nodes, each nodes have 8 processors. I tried to run my program using 50 processors. The windows HPC always creates 8 processors on 1 nodes. How can I use 25 nodes and each nodes create 2 processors. I tried to use machine file, however, The windoes HPC didn't create processors as my machine file specified.
All Replies
- Try running the job with a combination of /numnodes scheduling and a -cores mpiexec argument like this:
job submit /numnodes:25 mpiexec -cores 2 MyApp.exe
Eric Lantz (Microsoft) - where to type the command "job submit /numnodes:25 mpiexec -cores 2 MyApp.exe". in powershell?
Can I do it in windows HPC cluster manger ? I tried to do the task like :
mpiexec -n 4 -cores 2 MyApp.exe
but the program also run on one node using 4 cores. - Hi trimtrimYou may well have worked this all out for yourself by now, but:"job submit" is a command line (cmd) tool http://technet.microsoft.com/en-us/library/cc972834(WS.10).aspx for info. You could of course use another submission method (GUI or PowerShell)...Also, there is an excellent summary of how to place processes across cores / nodes on the Windows HPC blog:As Eric states, the mpiexec -cores switch is your friend.CheersDan
