On Mon, Feb 02, 2009 at 11:31:32AM -0800, Adam Moody wrote:
I think we need another statement about the in-place option in the text regarding buffer access. Something along the lines of:
When using the "in-place" option, message buffers may function as both send and receive buffers. Such buffers should not be modified or accessed until the operation completes. good point! I added: "When using the ``in place'' option, message buffers function as both send and receive buffers. Such buffers should not be modified or accessed until the operation completes."
This is somewhat unique to NBC. However, this statement is necessary for blocking collectives in threaded environments, as well. Did the "Send buffer access" ticket resolve this? Either way, it might not hurt to reiterate this point in the NBC intro, since it is more likely to come up there. uh well - collectives need more discussion anyway.
Best, Torsten -- bash$ :(){ :|:&};: --------------------- http://www.unixer.de/ ----- Torsten Hoefler | Postdoctoral Researcher Open Systems Lab | Indiana University 150 S. Woodlawn Ave. | Bloomington, IN, 474045, USA Lindley Hall Room 135 | +01 (812) 855-3608