Re: [OMPI users] collective communications broken on more than 4 cores

2009-10-29 Thread John R. Cary
This also appears to fix a bug I had reported that did not involve collective calls. The code is appended. When run on 64 bit architecture with iter.cary$ gcc --version gcc (GCC) 4.4.0 20090506 (Red Hat 4.4.0-4) Copyright (C) 2009 Free Software Foundation, Inc. This is free software; see the

Re: [OMPI users] collective communications broken on more than 4 cores

2009-10-29 Thread Vincent Loechner
> >>> It seems that the calls to collective communication are not > >>> returning for some MPI processes, when the number of processes is > >>> greater or equal to 5. It's reproduceable, on two different > >>> architectures, with two different versions of OpenMPI (1.3.2 and > >>> 1.3.3). It was

Re: [OMPI users] collective communications broken on more than 4 cores

2009-10-29 Thread Jonathan Dursi
On 2009-10-29, at 10:21AM, Vincent Loechner wrote: It seems that the calls to collective communication are not returning for some MPI processes, when the number of processes is greater or equal to 5. It's reproduceable, on two different architectures, with two different versions of OpenMPI

Re: [OMPI users] collective communications broken on more than 4 cores

2009-10-29 Thread Vincent Loechner
> > It seems that the calls to collective communication are not > > returning for some MPI processes, when the number of processes is > > greater or equal to 5. It's reproduceable, on two different > > architectures, with two different versions of OpenMPI (1.3.2 and > > 1.3.3). It was working

Re: [OMPI users] collective communications broken on more than 4 cores

2009-10-29 Thread Jonathan Dursi
On 2009-10-29, at 9:57AM, Vincent Loechner wrote: [...] It seems that the calls to collective communication are not returning for some MPI processes, when the number of processes is greater or equal to 5. It's reproduceable, on two different architectures, with two different versions of

[OMPI users] collective communications broken on more than 4 cores

2009-10-29 Thread Vincent Loechner
Hello to the list, I came to a problem running a simple program with collective communications, on a 6-core processors (6 local MPI processes). It seems that the calls to collective communication are not returning for some MPI processes, when the number of processes is greater or equal to 5.