Re: [OMPI users] [btl_openib_component.c:1373:btl_openib_component_progress] error polling HP CQ with -2 errno says Success

Very strange. MPI tries to access CQ context and it get immediate error. Please make sure that you limits configuration is ok, take a look on this FAQ - http://www.open-mpi.org/faq/?category=openfabrics#ib-locked-pages Pasha. Charles Wright wrote: Hello, I just got some new cluster hardwa

[OMPI users] Looped Barrier/Sendrecv hangs with btl sml: OMP1.3.3, 1.3.2, gcc44, intel 11

Hi, Eugene: Thanks for your efforts in reproducing this problem; glad to know it's not just us. I think our solution for now is just to migrate our users to MVAPICH2 and Intel MPI; these MPICH-based systems work for us and our users extremely reliably, and it just looks like OpenMPI isn't

Re: [OMPI users] Is there an "flush()"-like function in MPI?

Yes, I know there should be a bug. But I do not know where and why. The strange thing was sometimes it worked but at this time there will be a segmentation fault. If it did not work, some process must sit there waiting for the message. There are many iterations in my program(using a loop). It w

Re: [OMPI users] Is there an "flush()"-like function in MPI?

guosong wrote: Thanks for reply. One more thing I would like to know is that since the message has already left the sender, how to make sure that the receiver side receives this message? From the output of my program, it seems that the receiver side is waiting for the message(MPI_Recv).  Y

Re: [OMPI users] Is there an "flush()"-like function in MPI?

Thanks for reply. One more thing I would like to know is that since the message has already left the sender, how to make sure that the receiver side receives this message? From the output of my program, it seems that the receiver side is waiting for the message(MPI_Recv). List-Post: users@

[OMPI users] -slot-list -stride

Could someone show me examples of how the mpirun options -slot-list and -stride work? They don't seem to do anything for me (except under some conditions generating wild error messages, as previously reported). Any version of OMPI is fine.

Re: [OMPI users] Is there an "flush()"-like function in MPI?

guosong wrote: Hi all, I am wondering if there is an flush()-like function in MPI. I saw the output of my program. One sent something but some other process did not receive it, just sitting there waiting. I used MPI_Isend for sending and MPI_Recv for receiving. Is it possible the message was

Re: [OMPI users] Is there an "flush()"-like function in MPI?

Hi! Do you use MPI_Wait or MPI_Waitall functions in your code? Because if you achieve to non-blocking sending in your code, you should wait for non-blocking sendig to complete. All the best, Attila Borcs 2009/9/26 guosong > Hi all, > I am wondering if there is an flush()-like function in MPI

[OMPI users] Is there an "flush()"-like function in MPI?

Hi all, I am wondering if there is an flush()-like function in MPI. I saw the output of my program. One sent something but some other process did not receive it, just sitting there waiting. I used MPI_Isend for sending and MPI_Recv for receiving. Is it possible the message was lost or the mess

Re: [OMPI users] best way to ALLREDUCE multi-dimensional arrays in Fortran?

Martin mentioned that you don't need to un/buffer if those array sections are already contiguous in memory.  Or, if they aren't contiguous in memory but the "ghost" cells or gaps in memory aren't too big, maybe it's worth including the gaps in the MPI_Allreduce call so that the array sections e

Re: [OMPI users] MPI Parent-Child process query

Sorry for the delay in replying; I just replied to your similar questions here: http://www.open-mpi.org/community/lists/users/2009/09/10774.php On Sep 22, 2009, at 6:42 PM, Blesson Varghese wrote: HI, I am fairly new to MPI. I am just wondering if it is possible for a child process i

Re: [OMPI users] MPI_Comm_spawn query

On Sep 22, 2009, at 8:20 AM, Blesson Varghese wrote: I am fairly new to MPI.I have a few queries regarding spawning processes that I am listing below: a. How can processes send data to a spawned process? See the descriptions for MPI_COMM_SPAWN; you get an inter-communicator back from

Re: [OMPI users] segfault on finalize

It's a fairly strange place to get an error -- mca_base_param_finalize() is where we're tidying up command line parameters. There was some memory bugs that have been fixed since 21970. Can you update? On Sep 25, 2009, at 9:49 AM, Thomas Ropars wrote: Hi, I'm using r21970 of the trunk

Re: [OMPI users] "Failed to find the following executable" problemunder Torque

On Sep 25, 2009, at 7:55 AM, Blosch, Edwin L wrote: I’m having a problem running OpenMPI under Torque. It complains like there is a command syntax problem, but the three variations below are all correct, best I can tell using mpirun –help. The environment in which the command executes, i.