150 строки
4.4 KiB
C
150 строки
4.4 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
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/*
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* (C) 2014 by Argonne National Laboratory.
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* See COPYRIGHT in top-level directory.
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*/
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#include "mpioimpl.h"
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#ifdef HAVE_WEAK_SYMBOLS
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#if defined(HAVE_PRAGMA_WEAK)
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#pragma weak MPI_File_iread_all = PMPI_File_iread_all
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#elif defined(HAVE_PRAGMA_HP_SEC_DEF)
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#pragma _HP_SECONDARY_DEF PMPI_File_iread_all MPI_File_iread_all
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#elif defined(HAVE_PRAGMA_CRI_DUP)
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#pragma _CRI duplicate MPI_File_iread_all as PMPI_File_iread_all
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/* end of weak pragmas */
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#elif defined(HAVE_WEAK_ATTRIBUTE)
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int MPI_File_iread_all(MPI_File fh, void *buf, int count, MPI_Datatype datatype,
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MPI_Request *request)
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__attribute__((weak,alias("PMPI_File_iread_all")));
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#endif
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/* Include mapping from MPI->PMPI */
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#define MPIO_BUILD_PROFILING
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#include "mpioprof.h"
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#endif
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#if HAVE_MPI_GREQUEST
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#include "mpiu_greq.h"
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#endif
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/*@
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MPI_File_iread_all - Nonblocking collective read using individual file pointer
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Input Parameters:
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. fh - file handle (handle)
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. count - number of elements in buffer (nonnegative integer)
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. datatype - datatype of each buffer element (handle)
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Output Parameters:
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. buf - initial address of buffer (choice)
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. request - request object (handle)
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.N fortran
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@*/
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int MPI_File_iread_all(MPI_File fh, void *buf, int count,
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MPI_Datatype datatype, MPI_Request *request)
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{
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int error_code;
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static char myname[] = "MPI_FILE_IREAD_ALL";
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#ifdef MPI_hpux
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int fl_xmpi;
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HPMP_IO_START(fl_xmpi, BLKMPIFILEREADALL, TRDTBLOCK, fh, datatype, count);
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#endif /* MPI_hpux */
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error_code = MPIOI_File_iread_all(fh, (MPI_Offset)0,
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ADIO_INDIVIDUAL, buf,
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count, datatype, myname, request);
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/* --BEGIN ERROR HANDLING-- */
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if (error_code != MPI_SUCCESS) {
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error_code = MPIO_Err_return_file(fh, error_code);
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}
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/* --END ERROR HANDLING-- */
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#ifdef MPI_hpux
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HPMP_IO_END(fl_xmpi, fh, datatype, count);
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#endif /* MPI_hpux */
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return error_code;
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}
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/* Note: MPIOI_File_iread_all also used by MPI_File_iread_at_all */
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/* prevent multiple definitions of this routine */
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#ifdef MPIO_BUILD_PROFILING
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int MPIOI_File_iread_all(MPI_File fh,
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MPI_Offset offset,
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int file_ptr_type,
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void *buf,
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int count,
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MPI_Datatype datatype,
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char *myname,
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MPI_Request *request)
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{
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int error_code;
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MPI_Count datatype_size;
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ADIO_File adio_fh;
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void *xbuf=NULL, *e32_buf=NULL;
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ROMIO_THREAD_CS_ENTER();
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adio_fh = MPIO_File_resolve(fh);
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/* --BEGIN ERROR HANDLING-- */
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MPIO_CHECK_FILE_HANDLE(adio_fh, myname, error_code);
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MPIO_CHECK_COUNT(adio_fh, count, myname, error_code);
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MPIO_CHECK_DATATYPE(adio_fh, datatype, myname, error_code);
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if (file_ptr_type == ADIO_EXPLICIT_OFFSET && offset < 0) {
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error_code = MPIO_Err_create_code(MPI_SUCCESS, MPIR_ERR_RECOVERABLE,
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myname, __LINE__, MPI_ERR_ARG,
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"**iobadoffset", 0);
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error_code = MPIO_Err_return_file(adio_fh, error_code);
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goto fn_exit;
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}
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/* --END ERROR HANDLING-- */
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MPI_Type_size_x(datatype, &datatype_size);
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/* --BEGIN ERROR HANDLING-- */
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MPIO_CHECK_INTEGRAL_ETYPE(adio_fh, count, datatype_size, myname, error_code);
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MPIO_CHECK_READABLE(adio_fh, myname, error_code);
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MPIO_CHECK_NOT_SEQUENTIAL_MODE(adio_fh, myname, error_code);
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MPIO_CHECK_COUNT_SIZE(adio_fh, count, datatype_size, myname, error_code);
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/* --END ERROR HANDLING-- */
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xbuf = buf;
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if (adio_fh->is_external32) {
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MPI_Aint e32_size = 0;
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error_code = MPIU_datatype_full_size(datatype, &e32_size);
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if (error_code != MPI_SUCCESS)
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goto fn_exit;
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e32_buf = ADIOI_Malloc(e32_size*count);
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xbuf = e32_buf;
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}
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ADIO_IreadStridedColl(adio_fh, xbuf, count, datatype, file_ptr_type,
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offset, request, &error_code);
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/* --BEGIN ERROR HANDLING-- */
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if (error_code != MPI_SUCCESS)
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error_code = MPIO_Err_return_file(adio_fh, error_code);
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/* --END ERROR HANDLING-- */
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if (e32_buf != NULL) {
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error_code = MPIU_read_external32_conversion_fn(buf, datatype,
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count, e32_buf);
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ADIOI_Free(e32_buf);
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}
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fn_exit:
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ROMIO_THREAD_CS_EXIT();
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return error_code;
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}
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#endif
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