Re: [OMPI users] High cpu usage

2013-03-05 Thread Bokassa
Hi, I was wondering if there is any way to reduce the cpu usage the openmpi seems to spend in the busy wait loop. Thanks, /David On Thu, Feb 28, 2013 at 4:34 PM, Bokassa wrote: > Hi, >I notice that a simple MPI program in which rank 0 sends 4 bytes to > each rank and receives a reply

Re: [OMPI users] MPI_ERR_COMM: invalid communicator

2013-03-05 Thread Jeff Squyres (jsquyres)
It looks like you are calling MPI_Comm_rank on a bad communicator. Check all your calls to MPI_Comm_rank. On Mar 5, 2013, at 12:07 PM, Chintu wrote: > Hi, > > I am running my jobs on openmpi linux platform. I am getting the following > errors: > > [compute-12-23.local:10203] *** An error

Re: [OMPI users] MPI_ERR_COMM: invalid communicator

2013-03-05 Thread Chintu
Hi, Thank for your reply. But this is not the case that you mentioned, everything is correct with the program. On Tue, Mar 5, 2013 at 12:40 PM, Ralph Castain wrote: > Check your code - it looks like you called MPI_Init and failed to call > MPI_Finalize before exiting > > On Mar 5, 2013, at 9:07

Re: [OMPI users] MPI_ERR_COMM: invalid communicator

2013-03-05 Thread Ralph Castain
Check your code - it looks like you called MPI_Init and failed to call MPI_Finalize before exiting On Mar 5, 2013, at 9:07 AM, Chintu wrote: > Hi, > > I am running my jobs on openmpi linux platform. I am getting the following > errors: > > [compute-12-23.local:10203] *** An error occurred

[OMPI users] MPI_ERR_COMM: invalid communicator

2013-03-05 Thread Chintu
Hi, I am running my jobs on openmpi linux platform. I am getting the following errors: [compute-12-23.local:10203] *** An error occurred in MPI_Comm_rank [compute-12-23.local:10203] *** on communicator MPI_COMM_WORLD [compute-12-23.local:10203] *** MPI_ERR_COMM: invalid communicator [compute-12-2

Re: [OMPI users] Cluster hangs/shows error while executing simple MPI program in C

2013-03-05 Thread Ralph Castain
The TCP messaging transport is trying to connect to a process on 192.168.122.1 and being blocked. Check for a firewall, ensure that the network it is trying to use is correct (you may need to specify an appropriate network with -mca btl_tcp_if_include, or exclude one) On Mar 5, 2013, at 7:50 A

[OMPI users] Cluster hangs/shows error while executing simple MPI program in C

2013-03-05 Thread Justin Joseph
Cluster hangs/shows error while executing simple MPI program in C I am trying to run a simple MPI program(multiple array addition), it runs perfectly in my PC but simply hangs or shows the following error in the cluster. I am using open mpi and the following command to execute . mpirun -machinefi