On Thu, 2009-06-04 at 14:54 +1000, Lars Andersson wrote: > Hi Gus, > > Thanks for the suggestion. I've been thinking along those lines, but > it seems to have drawbacks. Consider the following MPI conversation: > > Time NODE 1 NODE 2 > 0 local work local work > 1 post n-b recv local work > 2 local work post n-b send > 3 complete recv in 1 local work
Its been awhile since i did mpi programming but... why not just post a n-b recv for the header too? just tag it correctly. -- Ake Sandgren, HPC2N, Umea University, S-90187 Umea, Sweden Internet: a...@hpc2n.umu.se Phone: +46 90 7866134 Fax: +46 90 7866126 Mobile: +46 70 7716134 WWW: http://www.hpc2n.umu.se