MPI_TAG_UB is not a constant, it is a predefined attribute. As such it should be accessed using the attribute accessors (MPI_COMM_GET_ATTR page 229 in the MPI 2.2 standard).
george. On Mar 13, 2012, at 13:51 , Timothy Stitt wrote: > Hi Jeff, > > I went through the procedure of compiling and running, then copied the > procedure verbatim from the command line (see below). > > ******** > [tstitt@memtfe] /pscratch/tstitt > more mpitag.f90 > program mpitag > > use mpi > > implicit none > > integer :: err > > call MPI_INIT(err) > > print *,MPI_TAG_UB > > call MPI_FINALIZE(err) > > end program mpitag > [tstitt@memtfe] /pscratch/tstitt > mpif90 --version > ifort (IFORT) 12.0.2 20110112 > Copyright (C) 1985-2011 Intel Corporation. All rights reserved. > > [tstitt@memtfe] /pscratch/tstitt > mpiexec --version > mpiexec (OpenRTE) 1.4.3 > > Report bugs to http://www.open-mpi.org/community/help/ > [tstitt@memtfe] /pscratch/tstitt > mpif90 -o mpitag mpitag.f90 > [tstitt@memtfe] /pscratch/tstitt > mpiexec -n 2 ./mpitag > 0 > 0 > ********** > > Let me know if you need any further information. > > Thanks, > > Tim. > > On Mar 13, 2012, at 1:39 PM, Jeffrey Squyres wrote: > >> Tim -- >> >> I am unable to replicate this problem with a 1.4 build with icc. >> >> Can you share your test code? >> >> >> On Mar 10, 2012, at 7:30 PM, Timothy Stitt wrote: >> >>> Hi all, >>> >>> I was experimenting with MPI_TAG_UB in my code recently and found that its >>> value is set to 0 in my v1.4.3 and v1.4.5 builds (these are the only builds >>> I have available to test). >>> >>> Oddly it only happens with my builds compiled with the Intel compiler. The >>> PGI builds do produce a non-zero value. Has anyone else experienced this? >>> >>> Regards, >>> >>> Tim. >>> _______________________________________________ >>> users mailing list >>> us...@open-mpi.org >>> http://www.open-mpi.org/mailman/listinfo.cgi/users >> >> >> -- >> Jeff Squyres >> jsquy...@cisco.com >> For corporate legal information go to: >> http://www.cisco.com/web/about/doing_business/legal/cri/ >> >> >> _______________________________________________ >> users mailing list >> us...@open-mpi.org >> http://www.open-mpi.org/mailman/listinfo.cgi/users > > Tim Stitt PhD (User Support Manager). > Center for Research Computing | University of Notre Dame | > P.O. Box 539, Notre Dame, IN 46556 | Phone: 574-631-5287 | Email: > tst...@nd.edu > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users