I’ve talked to the folks who wrote the Java bindings. One possibility we identified is that there may be an error in your code when you did the translation
> My immediate thought is that each process can not receive more elements than > it was sent to them. That's the reason of truncation error. > > These are the correct values: > > rank 0 - size2: 2,2,1,1 > rank 1 - size2: 1,1,1,1 > rank 2 - size2: 0,1,1,2 > rank 3 - size2: 2,1,2,1 Can you check your code to see if perhaps the values you are passing didn’t get translated correctly from your C++ version to the Java version? > On Apr 6, 2015, at 5:03 AM, Howard Pritchard <hpprit...@gmail.com> wrote: > > Hello HR, > > It would also be useful to know which java version you are using, as well > as the configure options used when building open mpi. > > Thanks, > > Howard > > > > 2015-04-05 19:10 GMT-06:00 Ralph Castain <r...@open-mpi.org > <mailto:r...@open-mpi.org>>: > If not too much trouble, can you extract just the alltoallv portion and > provide us with a small reproducer? > > >> On Apr 5, 2015, at 12:11 PM, Hamidreza Anvari <hr.anv...@gmail.com >> <mailto:hr.anv...@gmail.com>> wrote: >> >> Hello, >> >> I am converting an existing MPI program in C++ to Java using OpenMPI 1.8.4, >> At some point I have a allToAllv() code which works fine in C++ but receives >> error in Java version: >> >> MPI.COMM_WORLD.allToAllv(data, subpartition_size, subpartition_offset, >> MPI.INT <http://mpi.int/>, >> data2,subpartition_size2,subpartition_offset2,MPI.INT <http://mpi.int/>); >> >> Error: >> *** An error occurred in MPI_Alltoallv >> *** reported by process [3621322753,9223372036854775811] >> *** on communicator MPI_COMM_WORLD >> *** MPI_ERR_TRUNCATE: message truncated >> *** MPI_ERRORS_ARE_FATAL (processes in this communicator will now abort, >> *** and potentially your MPI job) >> 3 more processes have sent help message help-mpi-errors.txt / >> mpi_errors_are_fatal >> Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error >> messages >> >> Here are the values for parameters: >> >> data.length = 5 >> data2.length = 20 >> >> ---------- Rank 0 of 4 ---------- >> subpartition_offset:0,2,3,3, >> subpartition_size:2,1,0,2, >> subpartition_offset2:0,5,10,15, >> subpartition_size2:5,5,5,5, >> ---------- >> ---------- Rank 1 of 4 ---------- >> subpartition_offset:0,2,3,4, >> subpartition_size:2,1,1,1, >> subpartition_offset2:0,5,10,15, >> subpartition_size2:5,5,5,5, >> ---------- >> ---------- Rank 2 of 4 ---------- >> subpartition_offset:0,1,2,3, >> subpartition_size:1,1,1,2, >> subpartition_offset2:0,5,10,15, >> subpartition_size2:5,5,5,5, >> ---------- >> ---------- Rank 3 of 4 ---------- >> subpartition_offset:0,1,2,4, >> subpartition_size:1,1,2,1, >> subpartition_offset2:0,5,10,15, >> subpartition_size2:5,5,5,5, >> ---------- >> >> Again, this is a code which works in C++ version. >> >> Any help or advice is greatly appreciated. >> >> Thanks, >> -- HR >> _______________________________________________ >> users mailing list >> us...@open-mpi.org <mailto:us...@open-mpi.org> >> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users >> <http://www.open-mpi.org/mailman/listinfo.cgi/users> >> Link to this post: >> http://www.open-mpi.org/community/lists/users/2015/04/26610.php >> <http://www.open-mpi.org/community/lists/users/2015/04/26610.php> > > _______________________________________________ > users mailing list > us...@open-mpi.org <mailto:us...@open-mpi.org> > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users > <http://www.open-mpi.org/mailman/listinfo.cgi/users> > Link to this post: > http://www.open-mpi.org/community/lists/users/2015/04/26613.php > <http://www.open-mpi.org/community/lists/users/2015/04/26613.php> > > _______________________________________________ > users mailing list > us...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users > Link to this post: > http://www.open-mpi.org/community/lists/users/2015/04/26615.php
