-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi,
Am 08.05.2017 um 23:25 schrieb David Niklas: > Hello, > I originally ported this question at LQ, but the answer I got back shows > rather poor insight on the subject of MPI, so I'm taking the liberty of > posting here also. > > https://www.linuxquestions.org/questions/showthread.php?p=5707962 > > What I'm trying to do is figure out how/what to use to update an osm file > (open street map), in a cross system manner. I know the correct program > osmosis and for de/re-compression lbzip2 but how to do this across > computers is confusing me, even after a few hours of searching online. lbzip2 is only thread parallel on a single machine. With pbzip2 you mention it's the same, but it exists an MPI version MPIBZIP2 - unfortunately it looks unmaintained since 2007. Maybe you can contact the author about its state. Without an MPI application like this, the MPI library is nothing on its own which would divide and distribute one task to several machines automatically. osmosis itself seems to run in serial only (they don't say any word whether it uses any parallelism). For the intended task the only option is to use a single machine with as many cores as possible AFAICS. - -- Reuti -----BEGIN PGP SIGNATURE----- Comment: GPGTools - https://gpgtools.org iEYEARECAAYFAlkQ8Y8ACgkQo/GbGkBRnRq4jgCeKI39e2U22qsx9f6VeNZyUqNK QzQAoNsbE7yS1SuQpabW67z+7oTGQ7QP =uSOG -----END PGP SIGNATURE----- _______________________________________________ users mailing list users@lists.open-mpi.org https://rfd.newmexicoconsortium.org/mailman/listinfo/users
