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-   -   HP MPI warning...Distributed parallel processing (http://www.cfd-online.com/Forums/cfx/25178-hp-mpi-warning-distributed-parallel-processing.html)

Peter February 5, 2008 14:21

HP MPI warning...Distributed parallel processing
 
Hi I want to use HP MPI scheme for distributed parallel processing. I use following command script.

root/cfx5solve -def *.def -ini *.res -double -par-dist $NODES -start-method "HP MPI Distributed Parallel" -size-part 4.0

But it gives me following warning. Could any body suggest some solution.

Thanks.

***************************Warning**************** ******** Warning ! The current start method, HP MPI Distributed Parallel, is not a standard PVM parallel start method, and so the parallel option cannot be changed independently to Distributed Parallel. Request ignored.

If you are using both -start-method and -par-local or -par-dist on the command line, you can move the -start-method switch to after the -par-* switch.


UnderwaterAlex February 5, 2008 14:39

Re: HP MPI warning...Distributed parallel processi
 
Hi Peter,

I get that warning too, but I generally ignore it. My cases always run on the correct nodes using the solver-hpmpi executable so I figured it was fine. Are your cases not running appropriately?

-Alex

Peter February 5, 2008 14:52

Re: HP MPI warning...Distributed parallel processi
 
Hi Alex,

Though the command '-start-method "HP MPI Distributed Parallel"' gives warning but the correct number of nodes are allocated to my simulation. Simulation goes well. I also have been ignoring this warning but wanted to discuss view of other people.

By the way, is solver-hpmpi a different executable? What does it mean?

-Peter

UnderwaterAlex February 5, 2008 18:09

Re: HP MPI warning...Distributed parallel processi
 
When you run CFX it chooses a different executable depending on whether it is a serial or parallel run, and which mpi libraries are utilized. I might not be stating this exactly correctly (I am no software engineer), but basically the executable depends on which libraries were included in compiling the code and are therefore necessary to run the code in this configuration. A serial run uses solver-pvm.exe, hp mpi runs use solver-hpmpi.exe, etc. Even if you get this message, it doesn't seem to matter since the correct nodes are running the hp mpi executable. That's pretty much everything I know about it. I go with the "If it ain't broke, don't fix it" philosophy on this one.

Peter February 5, 2008 18:19

Re: HP MPI warning...Distributed parallel processi
 
Thank you very much Alex. I also agree with your philosophy. Your reply is full of useful information and I will try to understand it with the help of my friends who are rich in computer's knowledge.


hosseinhgf January 3, 2010 14:57

hi
excuse me for my english.
I have a problem to use "hp mpi" in windows xp x64.
I use ansys help to install the servise but it dosent work.
in cfx>tools>command type "cfx5parallel -install-hpmpi-service" and it installed then type "cfx5parallel -register-hpmpi-user" then it want password, after enter password this error is showing "mpid: cannot conect to mpirun".
can i use hp mpi in local machin whit multi processor?
i can install and use mpich2 but system restart is always occur.

peaksun February 8, 2010 10:56

Quote:

Originally Posted by hosseinhgf (Post 241374)
hi
excuse me for my english.
I have a problem to use "hp mpi" in windows xp x64.
I use ansys help to install the servise but it dosent work.
in cfx>tools>command type "cfx5parallel -install-hpmpi-service" and it installed then type "cfx5parallel -register-hpmpi-user" then it want password, after enter password this error is showing "mpid: cannot conect to mpirun".
can i use hp mpi in local machin whit multi processor?
i can install and use mpich2 but system restart is always occur.

I encounterd the same problem. My OS is windows server 2003 and CFX version is 12. Does anyone konw how to run CFX in 'HPMPI Local Parallel' mode under windows 64bit os?

ghorrocks February 8, 2010 18:07

HP-MPI works fine for me. I just followed the instructions in the documentation. If you have read the trouble shooting section in the manual and it does not help then will have to contact CFX support.

hosseinhgf February 8, 2010 19:17

finally i install hp mpi.i just make a virtual network and using ansys help.
my computer restart was from my mainboard(ma790x-ds4). the "isl" of mainboard power was failed. i repaired it three time but finally i had to buy a new one(ma790gp-ud4h).

dave malins May 13, 2011 11:02

hp mpi not installing on wind 7 64 bit Ansys CFX
 
1 Attachment(s)
Dear all,
I've installed CFX 13 but I try and install the hpmpi service and it gives the following error, without getting into the install. It can't get the registry so I'm assuming it's something up with my OS. Has anyone got any ideas?

much appreciate the help
dave

ghorrocks May 14, 2011 07:17

Are you sure you are installing as admin? If you cannot write to the registry you will get error messages like that.


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