[OMPI devel] canceling buffered send request with pml/cm

2014-08-04 Thread Yossi Etigin
Hi, Seems like it's impossible to cancel buffered sends with pml/cm. >From one hand, pml/cm completes the buffered send immediately >(MCA_PML_CM_HVY_SEND_REQUEST_START): if(OMPI_SUCCESS == ret && \

[OMPI devel] barrier before calling del_procs

2014-07-21 Thread Yossi Etigin
Hi, We get occasional hangs with MTL/MXM during finalize, because a global synchronization is needed before calling del_procs. e.g rank A may call del_procs() and disconnect from rank B, while rank B is still working. What do you think about adding an MPI barrier on COMM_WORLD before calling

Re: [OMPI devel] barrier before calling del_procs

2014-07-21 Thread Yossi Etigin
- From: Nathan Hjelm [mailto:hje...@lanl.gov] Sent: Monday, July 21, 2014 8:01 PM To: Open MPI Developers Cc: Yossi Etigin Subject: Re: [OMPI devel] barrier before calling del_procs I should add that it is an rte barrier and not an MPI barrier for technical reasons. -Nathan On Mon, Jul 21,

Re: [OMPI devel] barrier before calling del_procs

2014-07-21 Thread Yossi Etigin
infrastructure. Thus, we need to rely on an rte_barrier not because it guarantees the correctness of the code, but because it provides enough time to all processes to flush all HPC traffic. George. On Mon, Jul 21, 2014 at 1:10 PM, Yossi Etigin <yos...@mellanox.com<mailto:yos...@mellanox.com&g