Re: [OMPI users] Beginner Problem with OpenMPI (MPI_Waitall)

2008-06-27 Thread Joao Marcelo
Thanks Rainer and Matt, your suggestions solved my problem. On Fri, Jun 27, 2008 at 11:44 AM, Matt Hughes wrote: > 2008/6/27 Joao Marcelo : >> Hi, >> >> I'm starting to code with MPI and decided to use openmpi. I'm using >> Ubuntu Linux with GCC version 4.2.3 and OpenMPI 1.2.5 (distribution >> p

Re: [OMPI users] Beginner Problem with OpenMPI (MPI_Waitall)

2008-06-27 Thread Matt Hughes
2008/6/27 Joao Marcelo : > Hi, > > I'm starting to code with MPI and decided to use openmpi. I'm using > Ubuntu Linux with GCC version 4.2.3 and OpenMPI 1.2.5 (distribution > package). The output of "ompi_info -- all" is attached. I'm also > sending a copy of the source code I'm trying to run. On

Re: [OMPI users] Beginner Problem with OpenMPI (MPI_Waitall)

2008-06-27 Thread Rainer Keller
Dear Joao, the problem is that, You do not use the &reqs[i] correctly in the MPI_Send -- reqs[0] will not be initialized; but wait for in MPI_Waitall... Change: rc = MPI_Isend(&a , 1 , MPI_INT , i , 0 , MPI_COMM_WORLD , &reqs[i]); to rc = MPI_Isend(&a , 1 , MPI_INT , i , 0 , MPI_COMM_WORLD ,

[OMPI users] Beginner Problem with OpenMPI (MPI_Waitall)

2008-06-27 Thread Joao Marcelo
Hi, I'm starting to code with MPI and decided to use openmpi. I'm using Ubuntu Linux with GCC version 4.2.3 and OpenMPI 1.2.5 (distribution package). The output of "ompi_info -- all" is attached. I'm also sending a copy of the source code I'm trying to run. What I'm trying to do is selecting pro