Re: [OMPI users] how to select a specific network

2008-01-11 Thread Aurélien Bouteiller
ibd0 and ce0 have to be on the same network for this to work. Or said differently IP must be able to find a route between en0 and idb0. If those are on different private networks (like 192.168.1.x and 192.168.2.x) this will not work. Aurelien Le 11 janv. 08 à 16:05, Rolf Vandevaart a écrit

Re: [OMPI users] how to select a specific network

2008-01-11 Thread Rolf Vandevaart
Hello: Have you actually tried this and got it to work? It did not work for me. burl-ct-v440-0 50 =>mpirun -host burl-ct-v440-0,burl-ct-v440-1 -np 1 -mca btl self,sm,tcp -mca btl_tcp_if_include ce0 connectivity_c : -np 1 -mca btl self,sm,tcp -mca btl_tcp_if_include ce0 connectivity_c Connec

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

2008-01-11 Thread George Bosilca
Priya, There is some level of support for thread safety. However, we're actively working on this for our next release (1.3). If you have any problems with thread safety please let us know. Thanks, george. On Jan 11, 2008, at 3:13 PM, Priya Natarajan wrote: Hi, I have a question reg

[OMPI users] Open MPI and thread-safety

2008-01-11 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? I know that accordi

Re: [OMPI users] how to select a specific network

2008-01-11 Thread Aurélien Bouteiller
Try something similar to this mpirun -np 1 -mca btl self,tcp -mca btl_tcp_if_include en1 NetPIPE_3.6/ NPmpi : -np 1 -mca btl self,tcp -mca btl_tcp_if_include en0 NetPIPE_3.6/NPmpi You should then be able to specify a different if_include mask for you different processes. Aurelien Le 11

Re: [OMPI users] users Digest, Vol 787, Issue 1

2008-01-11 Thread Lydia Heck
Hi Adrian, you guessed right: it is solaris. . The user file space is shared and so ~/.openmpi is the same on all machines. . I cannot disable the "unwanted" interface because is is carrying all the other services such as NIS, NFS etc So the only way is to address the network by it IP number ra

Re: [OMPI users] how to select a specific network

2008-01-11 Thread Adrian Knoth
On Fri, Jan 11, 2008 at 11:36:23AM +, Lydia Heck wrote: > I have a setup which contains one set of machines > with one nge and one e1000g network and of machines > with two e1000g networks configured. I am planning a Are we talking about shared filesystems or can you place different ~/.openmp

Re: [OMPI users] how to select a specific network

2008-01-11 Thread Lydia Heck
I should have added that the two networks are not routable, and that they are private class B. On Fri, 11 Jan 2008, Lydia Heck wrote: > > I have a setup which contains one set of machines > with one nge and one e1000g network and of machines > with two e1000g networks configured. I am planning

[OMPI users] how to select a specific network

2008-01-11 Thread Lydia Heck
I have a setup which contains one set of machines with one nge and one e1000g network and of machines with two e1000g networks configured. I am planning a large run where all these computers will be occupied with one job and the mpi communication should only go over one specific network which is c