Re: [OMPI devel] Weird problem with strace, and question about transfers

It was, of course, my error. However, something very weird (and potentially very inefficient) is going on behind writev() and I shall look into what. Regards, Nick Maclaren.

[OMPI devel] Weird problem with strace, and question about transfers

As part of writing a course, I was trying to investigate how OpenMPI handles transfers when using bog-standard Linux and Ethernet (which I assume means TCP/IP). Having failed to track down the actual transfer call, I ran a simple test program under 'strace -f' but, in between two diagnostic cal