Re: [OMPI users] Need help resolving "error obtaining device context for mlx4_0"

2015-12-17 Thread Gilles Gouaillardet
r someone who has one - can you answer? On Dec 17, 2015, at 3:53 PM, Bathke, Chuck <mailto:bat...@lanl.gov>> wrote: Ralph, Where would these be, in /dev? Chuck *From*: Ralph Castain [mailto:r...@open-mpi.org] *Sent*: Thursday, December 17, 2015 04:13 PM *To*: Open MPI Users mailto:us.

Re: [OMPI users] Need help resolving "error obtaining device context for mlx4_0"

2015-12-17 Thread Ralph Castain
open-mpi.org] > Sent: Thursday, December 17, 2015 04:13 PM > To: Open MPI Users > Subject: Re: [OMPI users] Need help resolving "error obtaining device context > for mlx4_0" > > You might want to check the permissions on the MLX device directory - > according t

Re: [OMPI users] Need help resolving "error obtaining device context for mlx4_0"

2015-12-17 Thread Bathke, Chuck
Ralph, Where would these be, in /dev? Chuck From: Ralph Castain [mailto:r...@open-mpi.org] Sent: Thursday, December 17, 2015 04:13 PM To: Open MPI Users Subject: Re: [OMPI users] Need help resolving "error obtaining device context for mlx4_0" You might want to check the permissions

Re: [OMPI users] Need help resolving "error obtaining device context for mlx4_0"

2015-12-17 Thread Ralph Castain
You might want to check the permissions on the MLX device directory - according to that error message, the permissions are preventing you from accessing the device. Without getting access, we don’t have a way to communicate across nodes - you can run on one node using shared memory, but not mult

[OMPI users] Need help resolving "error obtaining device context for mlx4_0"

2015-12-17 Thread Bathke, Chuck
Hi, I have a system of AMD blades that I am trying to run MCNP6 on using OPENMPI. I installed openmpi-1.6.5. I also have installed Intel FORTRAN and C compiles. I compiled MCNP6 using FC="mpif90" CC="mpicc" ... It runs just fine when I run it on a 1-hour test case on just one blade. I need to