Re: [OMPI devel] Loading Open MPI from MPJ Express (Java) fails

1) By heterogeneous do you mean Derived Datatypes? MPJ Express's buffering layer handles this. It flattens the data into a ByteBuffer. In this way native device doesn't have to worry about Derived Datatypes (those things are handled at top layers). And an interesting thing, intuitively Java

Re: [OMPI devel] 答复: example/Hello_c.c : mpirun run failed on two physical nodes.

Can you please configure OMPI with --enable-debug, and then execute mpirun -mca plm_base_verbose 10 -host ib03 hostname This will provide debug information about the problem. Thanks Ralph On Tue, Mar 25, 2014 at 9:51 PM, Wang,Yanfei(SYS) wrote: > Hi, > > Thanks jeff, and I have not figured

[OMPI devel] 答复: example/Hello_c.c : mpirun run failed on two physical nodes.

Hi, Thanks jeff, and I have not figured out what happened yet with this FAQ. 1. Ssh remote login OK: [root@bb-nsi-ib04 examples]# ssh ib03 hostname bb-nsi-ib03.bb01.*.com [root@bb-nsi-ib04 examples]# 2. following command return immediately without nothing returned [root@bb-nsi-ib04 examples]