Your provided information is very helpful. Thank you very much. Best Regards.
On Thu, Feb 26, 2009 at 10:26 PM, Stuart Martin <[email protected]> wrote: > multi-cluster MPI support exists for the grid. mpich-g2 provides this for > pre-ws gram (gram2) installations. MPIg is the more recent version and > provides this functionality for both pre-ws gram and ws gram (gram4). > > Information on MPICH-G2 is here: > http://www3.niu.edu/mpi/ > > Information on MPIg is here: > ftp://ftp.cs.niu.edu/pub/karonis/MPIg/index.html > > Work has been done in these implementations (but maybe only in MPIg, not > sure) to optimize the inter process message communication given the network > topology. e.g. use GEthernet when available between 2 processes. Process > broadcast messages in an efficient manner. > > Nick Karonis (cc'ed) could help you with any additional questions. > > -Stu > > > On Feb 25, 2009, at Feb 25, 11:35 PM, Le Trung Kien wrote: > > Hi, >> I have a question about the ability of deploying parallel application on a >> large grid system and >> optimizing the use of available resources for sure. >> We saw that a "classic" parallel application which worked well on >> clustering systems, which have >> their best communicating condition between cluster nodes (with speed of >> Fabric or GEthernet). >> And now, when the grid computing is widely developed and deployed, the old >> clusters have been >> joined in grids. For simple, we consider a cluster of computer as a grid >> node; so, in general, I wonder if >> one such classic parallel application could be executed on two or more >> grid nodes concurrently >> and give us the best performance in time consuming, assuming grid nodes >> communicate with >> others through DSL line (about 1 or 2 Mb/s of speed). >> >> Thank you, any ideas please. >> Best Regards. >> >> >> -- >> Le Trung Kien. >> > > -- Le Trung Kien.
