5fae72b9aa
This patch reshape the way we deal with topologies completely. Where our topologies were mainly storage components (they were not capable of creating the new communicator), the new version is built around a [possibly] common representation (in mca/topo/topo.h), but the functions to attach and retrieve the topological information are specific to each component. As a result the ompi_create_cart and ompi_create_graph functions become useless and have been removed. In addition to adding the internal infrastructure to manage the topology information, it updates the MPI interface, and the debuggers support and provides all Fortran interfaces. This commit was SVN r28687.
242 строки
11 KiB
C
242 строки
11 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2012 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2006-2012 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2011-2012 INRIA. All rights reserved.
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* Copyright (c) 2011-2012 Universite Bordeaux 1
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#ifndef OMPI_FORTRAN_BASE_CONSTANTS_H
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#define OMPI_FORTRAN_BASE_CONSTANTS_H
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#include "ompi_config.h"
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/*
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* Several variables are used to link against MPI F77 constants which
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* correspond to addresses, e.g. MPI_BOTTOM, and are implemented via
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* common blocks.
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*
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* We use common blocks so that in the C wrapper functions, we can
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* compare the address that comes in against known addresses (e.g., if
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* the "status" argument in MPI_RECV is the address of the common
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* block for the fortran equivalent of MPI_STATUS_IGNORE, then we know
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* to pass the C MPI_STATUS_IGNORE to the C MPI_Recv function). As
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* such, we never look at the *value* of these variables (indeed,
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* they're never actually initialized), but instead only ever look at
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* the *address* of these variables.
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*
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* As such, it is not strictly necessary that the size and type of our
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* C variables matches that of the common Fortran block variables.
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* However, good programming form says that we should match, so we do.
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*
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* Note, however, that the alignments of the Fortran common block and
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* the C variable may not match (e.g., Intel 9.0 compilers on 64 bit
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* platforms will put the alignment of a double on 4 bytes, but put
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* the alignment of all common blocks on 16 bytes). This only matters
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* (to some compilers!), however, if you initialize the C variable in
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* the global scope. If the C global instantiation is not
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* initialized, the compiler/linker seems to "figure it all out" and
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* make the alignments match.
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*
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* Since we made the fundamental decision to support all 4 common
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* fortran compiler symbol conventions within the same library for
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* those compilers who support weak symbols, we need to have 4 symbols
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* for each of the fortran address constants. As described above, we
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* have to have known *pointer* values for the fortran addresses
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* (e.g., MPI_STATUS_IGNORE). So when the fortran wrapper for
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* MPI_RECV gets (MPI_Fint *status), it can check (status ==
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* some_sentinel_value) to know that it got the Fortran equivalent of
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* MPI_STATUS_IGNORE and therefore pass the C MPI_STATUS_IGNORE to the
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* C MPI_Recv.
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*
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* We do this by having a "common" block in mpif.h:
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*
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* INTEGER MPI_STATUS_IGNORE(MPI_STATUS_SIZE)
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* common /mpi_fortran_status_ignore/ MPI_STATUS_IGNORE
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*
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* This makes the fortran variable MPI_STATUS_IGNORE effectively be an
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* alias for the C variable "mpi_fortran_status_ignore" -- but the C
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* symbol name is according to the fortran compiler's naming symbol
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* convention bais. So it could be MPI_FORTRAN_STATUS_IGNORE,
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* mpi_fortran_status_ignore, mpi_fortran_status_ignore_, or
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* mpi_fortran_status_ignore__.
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*
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* Hence, we have to have *4* C symbols for this, and them compare for
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* all of them in the fortran MPI_RECV wrapper. :-( I can't think of
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* any better way to do this.
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*
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* I'm putting these 4 comparisons in macros (on systems where we
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* don't support the 4 symbols -- e.g., OSX, where we don't have weak
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* symbols -- it'll only be one comparison), so if anyone things of
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* something better than this, you should only need to modify this
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* file.
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*/
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#define DECL(type, upper_case, lower_case, single_u, double_u) \
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OMPI_DECLSPEC extern type upper_case; \
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OMPI_DECLSPEC extern type lower_case; \
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OMPI_DECLSPEC extern type single_u; \
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OMPI_DECLSPEC extern type double_u
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/* Note that the rationale for the types of each of these variables is
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discussed in ompi/include/mpif-common.h. Do not change the types
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without also changing ompi/runtime/ompi_mpi_init.c and
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ompi/include/mpif-common.h. */
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DECL(int, MPI_FORTRAN_BOTTOM, mpi_fortran_bottom,
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mpi_fortran_bottom_, mpi_fortran_bottom__);
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DECL(int, MPI_FORTRAN_IN_PLACE, mpi_fortran_in_place,
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mpi_fortran_in_place_, mpi_fortran_in_place__);
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DECL(int, MPI_FORTRAN_UNWEIGHTED, mpi_fortran_unweighted,
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mpi_fortran_unweighted_, mpi_fortran_unweighted__);
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DECL(char *, MPI_FORTRAN_ARGV_NULL, mpi_fortran_argv_null,
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mpi_fortran_argv_null_, mpi_fortran_argv_null__);
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DECL(char *, MPI_FORTRAN_ARGVS_NULL, mpi_fortran_argvs_null,
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mpi_fortran_argvs_null_, mpi_fortran_argvs_null__);
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DECL(int *, MPI_FORTRAN_ERRCODES_IGNORE, mpi_fortran_errcodes_ignore,
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mpi_fortran_errcodes_ignore_, mpi_fortran_errcodes_ignore__);
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DECL(int *, MPI_FORTRAN_STATUS_IGNORE, mpi_fortran_status_ignore,
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mpi_fortran_status_ignore_, mpi_fortran_status_ignore__);
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DECL(int *, MPI_FORTRAN_STATUSES_IGNORE, mpi_fortran_statuses_ignore,
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mpi_fortran_statuses_ignore_, mpi_fortran_statuses_ignore__);
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/*
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* Create macros to do the checking. Only check for all 4 if we have
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* weak symbols. Otherwise, just check for the one relevant symbol.
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*/
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#if OPAL_HAVE_WEAK_SYMBOLS
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#define OMPI_IS_FORTRAN_BOTTOM(addr) \
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(addr == (void*) &MPI_FORTRAN_BOTTOM || \
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addr == (void*) &mpi_fortran_bottom || \
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addr == (void*) &mpi_fortran_bottom_ || \
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addr == (void*) &mpi_fortran_bottom__)
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#define OMPI_IS_FORTRAN_IN_PLACE(addr) \
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(addr == (void*) &MPI_FORTRAN_IN_PLACE || \
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addr == (void*) &mpi_fortran_in_place || \
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addr == (void*) &mpi_fortran_in_place_ || \
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addr == (void*) &mpi_fortran_in_place__)
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#define OMPI_IS_FORTRAN_UNWEIGHTED(addr) \
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(addr == (void*) &MPI_FORTRAN_UNWEIGHTED || \
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addr == (void*) &mpi_fortran_unweighted || \
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addr == (void*) &mpi_fortran_unweighted_ || \
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addr == (void*) &mpi_fortran_unweighted__)
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#define OMPI_IS_FORTRAN_ARGV_NULL(addr) \
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(addr == (void*) &MPI_FORTRAN_ARGV_NULL || \
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addr == (void*) &mpi_fortran_argv_null || \
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addr == (void*) &mpi_fortran_argv_null_ || \
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addr == (void*) &mpi_fortran_argv_null__)
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#define OMPI_IS_FORTRAN_ARGVS_NULL(addr) \
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(addr == (void*) &MPI_FORTRAN_ARGVS_NULL || \
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addr == (void*) &mpi_fortran_argvs_null || \
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addr == (void*) &mpi_fortran_argvs_null_ || \
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addr == (void*) &mpi_fortran_argvs_null__)
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#define OMPI_IS_FORTRAN_ERRCODES_IGNORE(addr) \
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(addr == (void*) &MPI_FORTRAN_ERRCODES_IGNORE || \
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addr == (void*) &mpi_fortran_errcodes_ignore || \
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addr == (void*) &mpi_fortran_errcodes_ignore_ || \
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addr == (void*) &mpi_fortran_errcodes_ignore__)
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#define OMPI_IS_FORTRAN_STATUS_IGNORE(addr) \
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(addr == (void*) &MPI_FORTRAN_STATUS_IGNORE || \
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addr == (void*) &mpi_fortran_status_ignore || \
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addr == (void*) &mpi_fortran_status_ignore_ || \
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addr == (void*) &mpi_fortran_status_ignore__)
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#define OMPI_IS_FORTRAN_STATUSES_IGNORE(addr) \
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(addr == (void*) &MPI_FORTRAN_STATUSES_IGNORE || \
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addr == (void*) &mpi_fortran_statuses_ignore || \
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addr == (void*) &mpi_fortran_statuses_ignore_ || \
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addr == (void*) &mpi_fortran_statuses_ignore__)
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#elif OMPI_FORTRAN_CAPS
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#define OMPI_IS_FORTRAN_BOTTOM(addr) \
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(addr == (void*) &MPI_FORTRAN_BOTTOM)
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#define OMPI_IS_FORTRAN_IN_PLACE(addr) \
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(addr == (void*) &MPI_FORTRAN_IN_PLACE)
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#define OMPI_IS_FORTRAN_UNWEIGHTED(addr) \
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(addr == (void*) &MPI_FORTRAN_UNWEIGHTED)
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#define OMPI_IS_FORTRAN_ARGV_NULL(addr) \
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(addr == (void*) &MPI_FORTRAN_ARGV_NULL)
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#define OMPI_IS_FORTRAN_ARGVS_NULL(addr) \
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(addr == (void*) &MPI_FORTRAN_ARGVS_NULL)
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#define OMPI_IS_FORTRAN_ERRCODES_IGNORE(addr) \
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(addr == (void*) &MPI_FORTRAN_ERRCODES_IGNORE)
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#define OMPI_IS_FORTRAN_STATUS_IGNORE(addr) \
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(addr == (void*) &MPI_FORTRAN_STATUS_IGNORE)
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#define OMPI_IS_FORTRAN_STATUSES_IGNORE(addr) \
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(addr == (void*) &MPI_FORTRAN_STATUSES_IGNORE)
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#elif OMPI_FORTRAN_PLAIN
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#define OMPI_IS_FORTRAN_BOTTOM(addr) \
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(addr == (void*) &mpi_fortran_bottom)
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#define OMPI_IS_FORTRAN_IN_PLACE(addr) \
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(addr == (void*) &mpi_fortran_in_place)
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#define OMPI_IS_FORTRAN_UNWEIGHTED(addr) \
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(addr == (void*) &mpi_fortran_unweighted)
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#define OMPI_IS_FORTRAN_ARGV_NULL(addr) \
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(addr == (void*) &mpi_fortran_argv_null)
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#define OMPI_IS_FORTRAN_ARGVS_NULL(addr) \
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(addr == (void*) &mpi_fortran_argvs_null)
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#define OMPI_IS_FORTRAN_ERRCODES_IGNORE(addr) \
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(addr == (void*) &mpi_fortran_errcodes_ignore)
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#define OMPI_IS_FORTRAN_STATUS_IGNORE(addr) \
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(addr == (void*) &mpi_fortran_status_ignore)
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#define OMPI_IS_FORTRAN_STATUSES_IGNORE(addr) \
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(addr == (void*) &mpi_fortran_statuses_ignore)
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#elif OMPI_FORTRAN_SINGLE_UNDERSCORE
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#define OMPI_IS_FORTRAN_BOTTOM(addr) \
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(addr == (void*) &mpi_fortran_bottom_)
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#define OMPI_IS_FORTRAN_IN_PLACE(addr) \
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(addr == (void*) &mpi_fortran_in_place_)
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#define OMPI_IS_FORTRAN_UNWEIGHTED(addr) \
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(addr == (void*) &mpi_fortran_unweighted_)
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#define OMPI_IS_FORTRAN_ARGV_NULL(addr) \
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(addr == (void*) &mpi_fortran_argv_null_)
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#define OMPI_IS_FORTRAN_ARGVS_NULL(addr) \
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(addr == (void*) &mpi_fortran_argvs_null_)
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#define OMPI_IS_FORTRAN_ERRCODES_IGNORE(addr) \
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(addr == (void*) &mpi_fortran_errcodes_ignore_)
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#define OMPI_IS_FORTRAN_STATUS_IGNORE(addr) \
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(addr == (void*) &mpi_fortran_status_ignore_)
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#define OMPI_IS_FORTRAN_STATUSES_IGNORE(addr) \
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(addr == (void*) &mpi_fortran_statuses_ignore_)
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#else
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#define OMPI_IS_FORTRAN_BOTTOM(addr) \
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(addr == (void*) &mpi_fortran_bottom__)
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#define OMPI_IS_FORTRAN_IN_PLACE(addr) \
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(addr == (void*) &mpi_fortran_in_place__)
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#define OMPI_IS_FORTRAN_UNWEIGHTED(addr) \
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(addr == (void*) &mpi_fortran_unweighted__)
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#define OMPI_IS_FORTRAN_ARGV_NULL(addr) \
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(addr == (void*) &mpi_fortran_argv_null__)
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#define OMPI_IS_FORTRAN_ARGVS_NULL(addr) \
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(addr == (void*) &mpi_fortran_argvs_null__)
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#define OMPI_IS_FORTRAN_ERRCODES_IGNORE(addr) \
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(addr == (void*) &mpi_fortran_errcodes_ignore__)
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#define OMPI_IS_FORTRAN_STATUS_IGNORE(addr) \
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(addr == (void*) &mpi_fortran_status_ignore__)
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#define OMPI_IS_FORTRAN_STATUSES_IGNORE(addr) \
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(addr == (void*) &mpi_fortran_statuses_ignore__)
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#endif /* weak / specific symbol type */
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/* Convert between Fortran and C MPI_BOTTOM */
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#define OMPI_F2C_BOTTOM(addr) (OMPI_IS_FORTRAN_BOTTOM(addr) ? MPI_BOTTOM : (addr))
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#define OMPI_F2C_IN_PLACE(addr) (OMPI_IS_FORTRAN_IN_PLACE(addr) ? MPI_IN_PLACE : (addr))
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#define OMPI_F2C_UNWEIGHTED(addr) (OMPI_IS_FORTRAN_UNWEIGHTED(addr) ? MPI_UNWEIGHTED : (addr))
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#endif /* OMPI_FORTRAN_BASE_CONSTANTS_H */
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