[openib-general] MPI error when using a "system" call in mpi job.

[glebn at voltaire.com]

On Wed, Jun 14, 2006 at 01:36:42AM -0700, Greg Lindahl wrote:
> On Tue, Jun 13, 2006 at 05:11:47PM -0700, Ira Weiny wrote:
> 
> > After some tracking down he found that apparently if he used a "system" call
> > [int system(const char *string)] the next MPI command will fail.
> 
> Are you sure MVAPICH supports fork()? It is not unusual for MPI
> implementations to not support fork(). system() uses fork().
> 
On kernel 2.6.12 or newer system() should works OK (in non threaded
application).

--
			Gleb.