Re: [OMPI users] use accept/connect to merge a new intra-comm

Which OMPI version? > On Jan 25, 2015, at 5:41 AM, haozi wrote: > > Hi guys. > > I am interested in an example from OpenMPI, as attachment: > singleton_client_server.c. > So, I wrote another example. And some error happened. > My example includes two servers and one

Re: [OMPI users] orted seg fault when using MPI_Comm_spawn on more than one host

Well, I can reproduce it - but I won’t have time to address it until I return later this week. Whether or not procs get spawned onto a remote host depends on the number of local slots. You asked for 8 processes, so if there are more than 8 slots on the node, then it will launch them all on the

Re: [OMPI users] slurm openmpi 1.8.3 core bindings

Yeah, I don’t think that the slurm bindings will work for you. Problem is that the slurm directive gets applied to the launch of our daemon, not the application procs. So what you’ve done is bind our daemon to 3 cpus. This has nothing to do with the OMPI-Slurm integration - you told slurm to

Re: [OMPI users] using multiple IB connections between hosts

Dave, the QDR Infiniband uses the openib btl (by default : btl_openib_exclusivity=1024) i assume the RoCE 10Gbps card is using the tcp btl (by default : btl_tcp_exclusivity=100) that means that by default, when both openib and tcp btl could be used, the tcp btl is discarded. could you give a

Re: [OMPI users] independent startup of orted and orterun

I have pushed the changes to the OMPI master. It took a little bit more than I had hoped due to the changes to the ORTE infrastructure, but hopefully this will meet your needs. It consists of two new tools: (a) orte-dvm - starts the virtual machine by launching a daemon on every node of the

Re: [OMPI users] vector type

Because the compiler does not know that you want to send the entire sub-matrix, passing non-contiguous arrays to a function is, at best, dangerous, do not do that unless you know the function can handle that. Do AA(1,1,2) and then it works. (in principle you then pass the starting memory location

Re: [OMPI users] Segfault in mpi-java

Hi, I created an issue with a simplified example: https://github.com/open-mpi/ompi/issues/369 Regards, Oscar El 25/01/15 a las 19:36, Oscar Vega-Gisbert escribió: Hi, I also reproduce this behaviour. But I think this crash is not related with garbage collector. Java is much better than