[OMPI devel] Recommended tool to measure packet counters

2013-12-14 Thread Siddhartha Jana
Is there a preferred method/tool among developers of MPI-library for checking the count of the packets transmitted by the network card during two-sided communication? Is the use of iptables -I INPUT -i eth0 iptables -I OUTPUT -o eth0 recommended ? Thanks, Siddhartha

Re: [OMPI devel] Recommended tool to measure packet counters

2013-12-18 Thread Siddhartha Jana
Ah got it ! Thanks -- Sid On 18 December 2013 07:44, Jeff Squyres (jsquyres) wrote: > On Dec 14, 2013, at 8:02 AM, Siddhartha Jana > wrote: > > > Is there a preferred method/tool among developers of MPI-library for > checking the count of the packets transmitted by the n

[OMPI devel] Threshold for pinning down user-buffers

2014-05-23 Thread Siddhartha Jana
Hi, Is my understanding correct? While servicing MPI_Send using eager protocol over openib, there is a data-size threshold below which it is preferred to copy the contents of the user-buffer to a pre-pinned buffer instead of directly pinning down the user-buffer. If this is correct, how does one d

Re: [OMPI devel] [OMPI svn-full] svn:open-mpi r32225 - in trunk: contrib/build-mca-comps-outside-of-tree ompi/contrib/vt/vt ompi/contrib/vt/vt/extlib/otf opal/mca/event/libevent2021/libevent

2014-07-12 Thread Siddhartha Jana
Hello, Just fyi: have forwarded the logs below to the VT mailing list at Vampir-Support Ticket number: 2014071241000219 -- Sid Univ. of Houston On 12 July 2014 17:51, Jeff Squyres (jsquyres) wrote: > Yes, but they're a 3rd party -- they rarely pay attention to OMPI stuff > unless we ping the