c9bb049d00
This is a bug fix based on a problem reported on the mailing list. For very large read/write operations, ompio breaks the operation down into multiple cycles. The problem was that one of the variables required to maintain its values across the different cycles did not do that, and because of that the calculations of the memory offsets was wrong. Fixes issue #4453 Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
93 строки
5.6 KiB
C
93 строки
5.6 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; -*- */
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/*
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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) 2004-2007 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) 2008-2016 University of Houston. 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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#ifndef MCA_COMMON_OMPIO_H
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#define MCA_COMMON_OMPIO_H
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#include "ompi/mca/common/ompio/common_ompio_print_queue.h"
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#include "ompi/mca/io/ompio/io_ompio.h"
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OMPI_DECLSPEC int mca_common_ompio_file_write (mca_io_ompio_file_t *fh, const void *buf, int count,
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struct ompi_datatype_t *datatype,
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ompi_status_public_t *status);
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OMPI_DECLSPEC int mca_common_ompio_file_write_at (mca_io_ompio_file_t *fh, OMPI_MPI_OFFSET_TYPE offset, const void *buf,
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int count, struct ompi_datatype_t *datatype,
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ompi_status_public_t *status);
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OMPI_DECLSPEC int mca_common_ompio_file_iwrite (mca_io_ompio_file_t *fh, const void *buf, int count,
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struct ompi_datatype_t *datatype, ompi_request_t **request);
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OMPI_DECLSPEC int mca_common_ompio_file_iwrite_at (mca_io_ompio_file_t *fh, OMPI_MPI_OFFSET_TYPE offset,
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const void *buf, int count, struct ompi_datatype_t *datatype,
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ompi_request_t **request);
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OMPI_DECLSPEC int mca_common_ompio_file_write_at_all (mca_io_ompio_file_t *fh, OMPI_MPI_OFFSET_TYPE offset, const void *buf,
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int count, struct ompi_datatype_t *datatype,
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ompi_status_public_t *status);
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OMPI_DECLSPEC int mca_common_ompio_file_iwrite_at_all (mca_io_ompio_file_t *fp, OMPI_MPI_OFFSET_TYPE offset, const void *buf,
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int count, struct ompi_datatype_t *datatype, ompi_request_t **request);
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OMPI_DECLSPEC int mca_common_ompio_build_io_array ( mca_io_ompio_file_t *fh, int index, int cycles,
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size_t bytes_per_cycle, int max_data, uint32_t iov_count,
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struct iovec *decoded_iov, int *ii, int *jj, size_t *tbw,
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size_t *spc );
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OMPI_DECLSPEC int mca_common_ompio_file_read (mca_io_ompio_file_t *fh, void *buf, int count,
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struct ompi_datatype_t *datatype, ompi_status_public_t *status);
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OMPI_DECLSPEC int mca_common_ompio_file_read_at (mca_io_ompio_file_t *fh, OMPI_MPI_OFFSET_TYPE offset, void *buf,
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int count, struct ompi_datatype_t *datatype,
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ompi_status_public_t * status);
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OMPI_DECLSPEC int mca_common_ompio_file_iread (mca_io_ompio_file_t *fh, void *buf, int count,
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struct ompi_datatype_t *datatype, ompi_request_t **request);
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OMPI_DECLSPEC int mca_common_ompio_file_iread_at (mca_io_ompio_file_t *fh, OMPI_MPI_OFFSET_TYPE offset,
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void *buf, int count, struct ompi_datatype_t *datatype,
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ompi_request_t **request);
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OMPI_DECLSPEC int mca_common_ompio_file_read_at_all (mca_io_ompio_file_t *fh, OMPI_MPI_OFFSET_TYPE offset,
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void *buf, int count, struct ompi_datatype_t *datatype,
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ompi_status_public_t * status);
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OMPI_DECLSPEC int mca_common_ompio_file_iread_at_all (mca_io_ompio_file_t *fp, OMPI_MPI_OFFSET_TYPE offset,
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void *buf, int count, struct ompi_datatype_t *datatype,
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ompi_request_t **request);
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OMPI_DECLSPEC int mca_common_ompio_file_open (ompi_communicator_t *comm, const char *filename,
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int amode, opal_info_t *info,
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mca_io_ompio_file_t *ompio_fh, bool use_sharedfp);
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OMPI_DECLSPEC int mca_common_ompio_file_close (mca_io_ompio_file_t *ompio_fh);
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OMPI_DECLSPEC int mca_common_ompio_file_get_size (mca_io_ompio_file_t *ompio_fh, OMPI_MPI_OFFSET_TYPE *size);
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OMPI_DECLSPEC int mca_common_ompio_file_get_position (mca_io_ompio_file_t *fh,OMPI_MPI_OFFSET_TYPE *offset);
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OMPI_DECLSPEC int mca_common_ompio_set_explicit_offset (mca_io_ompio_file_t *fh, OMPI_MPI_OFFSET_TYPE offset);
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OMPI_DECLSPEC int mca_common_ompio_set_file_defaults (mca_io_ompio_file_t *fh);
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OMPI_DECLSPEC int mca_common_ompio_set_view (mca_io_ompio_file_t *fh, OMPI_MPI_OFFSET_TYPE disp,
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ompi_datatype_t *etype, ompi_datatype_t *filetype, const char *datarep,
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opal_info_t *info);
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#endif /* MCA_COMMON_OMPIO_H */
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