Re: [OMPI users] Open MPI and thread-safety

2008-01-13 Thread Priya Natarajan
Hi, I am really sorry for the spam. This message got resent by mistake; kindly ignore it. Regards, Priya Natarajan On Jan 10, 2008, at 11:17 PM, Priya Natarajan wrote: Hi, I have a question regarding the thread-safety features of Open MPI. I have a multithreaded program in which two threa

[OMPI users] Open MPI and thread-safety

2008-01-13 Thread Priya Natarajan
Hi, I have a question regarding the thread-safety features of Open MPI. I have a multithreaded program in which two threads make MPI calls, so these threads might call MPI functions concurrently. Can Open MPI support such a program, i.e., is it thread-safe in such a scenario? According to

Re: [OMPI users] Can't compile C++ program with extern "C" { #include mpi.h }

2008-01-13 Thread Adam C Powell IV
Hi again, Sorry about the hiatus; I thought "Great, my OMPI_SKIP_CXX hack works" and didn't check to see your reply, even though it came right away. On Tue, 2008-01-01 at 11:07 -0700, Brian Barrett wrote: > On Jan 1, 2008, at 12:47 AM, Adam C Powell IV wrote: > > > On Mon, 2007-12-31 at 20:01 -0

Re: [OMPI users] Occasional mpirun hang on completion

2008-01-13 Thread Barry Rountree
On Sun, Jan 13, 2008 at 09:54:47AM -0500, Barry Rountree wrote: > Hello, > > The following command > > mpirun -np 2 -hostfile ~/hostfile uptime > > will occasionally hang after completing. The expected output appears on > the screen, but mpirun needs a SIGKILL to return to the console. > > T

[OMPI users] Occasional mpirun hang on completion

2008-01-13 Thread Barry Rountree
Hello, The following command mpirun -np 2 -hostfile ~/hostfile uptime will occasionally hang after completing. The expected output appears on the screen, but mpirun needs a SIGKILL to return to the console. This has been verified with OpenMPI v1.2.4 compiled with both icc 9.1 20061101 (aka 9