Hi guys, The IP address is only one of various attributes one may be interested about a certain Place.
I'm focusing my efforts on CUDA related code and some other attributes came to my mind like: amount of available memory, relative performance index, compute capability and ping lag time. These attributes would be interesting if one would like to build an heterogeneous topology. Cheers :) Richard Gomes M: +44(77)9955-6813 http://tinyurl.com/frgomes twitter: frgomes JQuantLib is a library for Quantitative Finance written in Java. http://www.jquantlib.org/ twitter: jquantlib On 10/12/10 17:17, Igor Peshansky wrote: > I had the impression that she wants something more elaborate than that. > > But sure, if Yan had a way of finding out the IP address for each node, > she could build a reverse table on her own. > Igor > > Stephen Fink/Watson/i...@ibmus wrote on 12/10/2010 12:04:40 PM: > >> I'd suggest that Li Yan wants an X10 equivalent of java.net.InetAddress. > >> Since we have permission to port libraries from Harmony, we can put this > >> on the list of desired classes. >> >> I'll open a JIRA feature request for this. >> >> SJF >> ------------------------------------------------------------------------ >> Stephen Fink >> IBM T.J. Watson Research Center >> sjf...@us.ibm.com >> (914)784-7776 >> >> >> >> >> From: >> Igor Peshansky/Watson/i...@ibmus >> To: >> Mailing list for users of the X10 programming language >> <x10-users@lists.sourceforge.net> >> Cc: >> Yan CRL Li<liyan...@cn.ibm.com>, Qi Ming Teng<teng...@cn.ibm.com> >> Date: >> 12/10/2010 08:28 AM >> Subject: >> Re: [X10-users] How to Map IP address to Place ID >> >> >> >> Yan CRL Li<liyan...@cn.ibm.com> wrote on 12/10/2010 05:35:06 AM: >> >>> For this scenario, I know the IP address of each node, I want to know >> each >>> Place id corresponding to this IP. >>> >>> For example :I put different files on these nodes. I start 5 places on > >> two >>> physical nodes: >>> File A, File B are on node 1 with IP: 192.168.1.1 >>> FileC,File D and File E anre on node 2 with IP :192.168.1.2 >>> >>> When I access these Files, I need to know the mapping relationship >> between >>> Place ID and IP address. >>> >>> But when programming with X10, I only know the place id, I do not know >>> which node is mapping to this id, how can I do this ? >> >> Yan, >> >> The mapping of places to nodes is external to X10. >> >> When you launch using the sockets or MPI transport, you specify the host > >> list >> as one of the parameters. The hosts will be picked out of the host list > >> in a >> round-robin fashion, so you know exactly which host corresponds to which >> place. >> >> If you use an external launcher, e.g., SLURM, you would have to look at >> the >> documentation for that system to see how to force it to use particular >> nodes >> as specific places. >> >> The usual approach is to have a shared filesystem, put all 5 files on > it, >> and let each node access the file that corresponds to its place. I >> realize >> that the files may be too large for this to be immediately feasible, but >> disk space is cheap, and it may end up being the most general solution. >> Igor ------------------------------------------------------------------------------ Oracle to DB2 Conversion Guide: Learn learn about native support for PL/SQL, new data types, scalar functions, improved concurrency, built-in packages, OCI, SQL*Plus, data movement tools, best practices and more. http://p.sf.net/sfu/oracle-sfdev2dev _______________________________________________ X10-users mailing list X10-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/x10-users
