Thanks guys for the advice. I had initially compiled my code with the PGI
compiler which actually returned a large, non-zero, non-negative output, which
is why I thought it was valid to use it directly in my code. I'll make sure to
use the correct procedure now for querying that 'attribute'.
Best,
Tim.
On Mar 14, 2012, at 8:22 AM, Jeffrey Squyres wrote:
George is correct. Try this:
[5:21] svbu-mpi:~/mpi % cat tag-ub.f90
program mpitag
use mpi
implicit none
integer :: err
integer (KIND=MPI_ADDRESS_KIND) :: my_tag_ub
logical flag
call MPI_INIT(err)
call MPI_COMM_GET_ATTR(MPI_COMM_WORLD, MPI_TAG_UB, my_tag_ub, flag, err)
if (flag .eq. .true.) then
print *, "Got tag ub:", my_tag_ub
else
print *, "Couldn't find tag ub!"
endif
call MPI_FINALIZE(err)
end program mpitag
[5:21] svbu-mpi:~/mpi % mpif90 tag-ub.f90
[5:22] svbu-mpi:~/mpi % ./a.out
Got tag ub: 2147483647
[5:22] svbu-mpi:~/mpi %
On Mar 13, 2012, at 7:50 PM, George Bosilca wrote:
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.
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--
Jeff Squyres
jsquy...@cisco.com<mailto:jsquy...@cisco.com>
For corporate legal information go to:
http://www.cisco.com/web/about/doing_business/legal/cri/
_______________________________________________
users mailing list
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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<mailto:tst...@nd.edu>
_______________________________________________
users mailing list
us...@open-mpi.org<mailto:us...@open-mpi.org>
http://www.open-mpi.org/mailman/listinfo.cgi/users
_______________________________________________
users mailing list
us...@open-mpi.org<mailto:us...@open-mpi.org>
http://www.open-mpi.org/mailman/listinfo.cgi/users
--
Jeff Squyres
jsquy...@cisco.com<mailto: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<mailto:tst...@nd.edu>
