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was that declaring the type of MPI_WTICK and MPI_TIME in mpif-common.h would allow the F90 bindings to call through to the back end f77 function and have the right return type. But upon reflection, that's silly -- we were just declaring the variables MPI_WTICK and MPI_WTIME that were of type double precision. Duh. So add some fixed (non-generated) wrapper F90 functions to call the back-end *C* MPI_WTICK and MPI_TIME functions (vs. the back end *F77* functions). We have to call the back-end C functions because there's a name conflict if we try to call the back-end F77 functions -- for the same reasons that we can't "implicitly" define MPI_WTIME and MPI_WTICK in the f90 module, we can't call such an implicitly-defined function. So we had to add new back-end C functions that are directly callable from Fortran, the easiest implementation of which was to provide 4 one-line functions for each (rather than muck around with weak symbols). This commit was SVN r10448.
91 строка
2.4 KiB
C
91 строка
2.4 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) 2004-2005 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 Cisco Systems, Inc. All rights reserved.
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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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#include "ompi_config.h"
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#include "ompi/mpi/f77/bindings.h"
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/* These functions solely exist so that the F90 bindings can call a C
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function from Fortran, so we provide all 4 variants. Specifically,
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the F90 bindings for MPI_WTICK and MPI_WTIME need to call the
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back-end C functions to effect the functionality -- they cannot
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call the back-end F77 functions because there is an overload of
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names and types. So we create these new functions with different
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names (MPI_WTICK_F90 and MPI_WTIME_F90 vs. MPI_WTICK and MPI_WTIME)
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so that the F90 bindings can call these functions directly.
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Rather than try to be clever with weak symbols, especially since
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the function implementations are 1 line long, it just seemed
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simpler to provide 4 copies of each [1 line] function. */
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void MPI_WTIME_F90(double *w);
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void mpi_wtime_f90(double *w);
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void mpi_wtime_f90_(double *w);
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void mpi_wtime_f90__(double *w);
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void MPI_WTICK_F90(double *w);
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void mpi_wtick_f90(double *w);
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void mpi_wtick_f90_(double *w);
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void mpi_wtick_f90__(double *w);
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/**********************************************************************/
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void MPI_WTIME_F90(double *w)
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{
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*w = MPI_Wtime();
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}
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void mpi_wtime_f90(double *w)
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{
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*w = MPI_Wtime();
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}
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void mpi_wtime_f90_(double *w)
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{
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*w = MPI_Wtime();
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}
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void mpi_wtime_f90__(double *w)
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{
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*w = MPI_Wtime();
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}
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/**********************************************************************/
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void MPI_WTICK_F90(double *w)
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{
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*w = MPI_Wtick();
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}
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void mpi_wtick_f90(double *w)
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{
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*w = MPI_Wtick();
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}
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void mpi_wtick_f90_(double *w)
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{
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*w = MPI_Wtick();
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}
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void mpi_wtick_f90__(double *w)
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{
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*w = MPI_Wtick();
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}
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