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Diffstat (limited to 'perform/pio_engine.c')
| -rw-r--r-- | perform/pio_engine.c | 2678 |
1 files changed, 0 insertions, 2678 deletions
diff --git a/perform/pio_engine.c b/perform/pio_engine.c deleted file mode 100644 index 3535fb4..0000000 --- a/perform/pio_engine.c +++ /dev/null @@ -1,2678 +0,0 @@ -/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * - * Copyright by The HDF Group. * - * Copyright by the Board of Trustees of the University of Illinois. * - * All rights reserved. * - * * - * This file is part of HDF5. The full HDF5 copyright notice, including * - * terms governing use, modification, and redistribution, is contained in * - * the files COPYING and Copyright.html. COPYING can be found at the root * - * of the source code distribution tree; Copyright.html can be found at the * - * root level of an installed copy of the electronic HDF5 document set and * - * is linked from the top-level documents page. It can also be found at * - * http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have * - * access to either file, you may request a copy from help@hdfgroup.org. * - * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ - -/* - * Author: Albert Cheng of NCSA, Oct 24, 2001. - */ - -#include <sys/types.h> -#include <sys/stat.h> -#include <stdio.h> -#include <stdlib.h> -#include <fcntl.h> -#ifdef H5_HAVE_UNISTD_H -#include <unistd.h> -#endif -#include <errno.h> - -#include "hdf5.h" - -#ifdef H5_HAVE_PARALLEL - -#include <mpi.h> - -#ifndef MPI_FILE_NULL /*MPIO may be defined in mpi.h already */ -# include <mpio.h> -#endif /* !MPI_FILE_NULL */ - -#include "pio_perf.h" -#include "pio_timer.h" - -/* Macro definitions */ - -#if H5_VERS_MAJOR == 1 && H5_VERS_MINOR == 6 -# define H5DCREATE(fd, name, type, space, dcpl) H5Dcreate(fd, name, type, space, dcpl) -# define H5DOPEN(fd, name) H5Dopen(fd, name) -#else -# define H5DCREATE(fd, name, type, space, dcpl) H5Dcreate2(fd, name, type, space, H5P_DEFAULT, dcpl, H5P_DEFAULT) -# define H5DOPEN(fd, name) H5Dopen2(fd, name, H5P_DEFAULT) -#endif - -/* sizes of various items. these sizes won't change during program execution */ -/* The following three must have the same type */ -#define ELMT_SIZE (sizeof(unsigned char)) /* we're doing bytes */ -#define ELMT_MPI_TYPE MPI_BYTE -#define ELMT_H5_TYPE H5T_NATIVE_UCHAR - -#define GOTOERROR(errcode) { ret_code = errcode; goto done; } -#define GOTODONE { goto done; } -#define ERRMSG(mesg) { \ - fprintf(stderr, "Proc %d: ", pio_mpi_rank_g); \ - fprintf(stderr, "*** Assertion failed (%s) at line %4d in %s\n", \ - mesg, (int)__LINE__, __FILE__); \ -} - -#define MSG(mesg) { \ - fprintf(stderr, "Proc %d: ", pio_mpi_rank_g); \ - fprintf(stderr, "(%s) at line %4d in %s\n", \ - mesg, (int)__LINE__, __FILE__); \ -} - -/* verify: if val is false (0), print mesg. */ -#define VRFY(val, mesg) do { \ - if (!val) { \ - ERRMSG(mesg); \ - GOTOERROR(FAIL); \ - } \ -} while(0) - - -/* POSIX I/O macros */ -#define POSIXCREATE(fn) HDopen(fn, O_CREAT|O_TRUNC|O_RDWR, 0600) -#define POSIXOPEN(fn, F) HDopen(fn, F, 0600) -#define POSIXCLOSE(F) HDclose(F) -#define POSIXSEEK(F,L) HDlseek(F, L, SEEK_SET) -#define POSIXWRITE(F,B,S) HDwrite(F,B,S) -#define POSIXREAD(F,B,S) HDread(F,B,S) - -enum { - PIO_CREATE = 1, - PIO_WRITE = 2, - PIO_READ = 4 -}; - -/* Global variables */ -static int clean_file_g = -1; /*whether to cleanup temporary test */ -/*files. -1 is not defined; */ -/*0 is no cleanup; 1 is do cleanup */ - -/* - * In a parallel machine, the filesystem suitable for compiling is - * unlikely a parallel file system that is suitable for parallel I/O. - * There is no standard pathname for the parallel file system. /tmp - * is about the best guess. - */ -#ifndef HDF5_PARAPREFIX -# define HDF5_PARAPREFIX "" -#endif /* !HDF5_PARAPREFIX */ - -#ifndef MIN -# define MIN(a,b) ((a) < (b) ? (a) : (b)) -#endif /* !MIN */ - -/* the different types of file descriptors we can expect */ -typedef union _file_descr { - int posixfd; /* POSIX file handle*/ - MPI_File mpifd; /* MPI file */ - hid_t h5fd; /* HDF5 file */ -} file_descr; - -/* local functions */ -static char *pio_create_filename(iotype iot, const char *base_name, - char *fullname, size_t size); -static herr_t do_write(results *res, file_descr *fd, parameters *parms, - long ndsets, off_t nelmts, size_t buf_size, void *buffer); -static herr_t do_read(results *res, file_descr *fd, parameters *parms, - long ndsets, off_t nelmts, size_t buf_size, void *buffer /*out*/); -static herr_t do_fopen(parameters *param, char *fname, file_descr *fd /*out*/, - int flags); -static herr_t do_fclose(iotype iot, file_descr *fd); -static void do_cleanupfile(iotype iot, char *fname); - -/* - * Function: do_pio - * Purpose: PIO Engine where Parallel IO are executed. - * Return: results - * Programmer: Albert Cheng, Bill Wendling 2001/12/12 - * Modifications: - * Added 2D testing (Christian Chilan, 10. August 2005) - */ - results -do_pio(parameters param) -{ - /* return codes */ - herr_t ret_code = 0; /*return code */ - results res; - - file_descr fd; - iotype iot; - - char fname[FILENAME_MAX]; - long nf; - long ndsets; - off_t nbytes; /*number of bytes per dataset */ - off_t snbytes; /*general dataset size */ - /*for 1D, it is the actual dataset size */ - /*for 2D, it is the size of a side of the dataset square */ - char *buffer = NULL; /*data buffer pointer */ - size_t buf_size; /*general buffer size in bytes */ - /*for 1D, it is the actual buffer size */ - /*for 2D, it is the length of the buffer rectangle */ - size_t blk_size; /*data block size in bytes */ - size_t bsize; /*actual buffer size */ - - /* HDF5 variables */ - herr_t hrc; /*HDF5 return code */ - - /* Sanity check parameters */ - - /* IO type */ - iot = param.io_type; - - switch (iot) { - case MPIO: - fd.mpifd = MPI_FILE_NULL; - res.timers = pio_time_new(MPI_TIMER); - break; - case POSIXIO: - fd.posixfd = -1; - res.timers = pio_time_new(MPI_TIMER); - break; - case PHDF5: - fd.h5fd = -1; - res.timers = pio_time_new(MPI_TIMER); - break; - default: - /* unknown request */ - fprintf(stderr, "Unknown IO type request (%d)\n", iot); - GOTOERROR(FAIL); - } - - ndsets = param.num_dsets; /* number of datasets per file */ - nbytes = param.num_bytes; /* number of bytes per dataset */ - buf_size = param.buf_size; - blk_size = param.blk_size; - - if (!param.dim2d){ - snbytes = nbytes; /* General dataset size */ - bsize = buf_size; /* Actual buffer size */ - } - else { - snbytes = (off_t)sqrt(nbytes); /* General dataset size */ - bsize = buf_size * blk_size; /* Actual buffer size */ - } - - if (param.num_files < 0 ) { - fprintf(stderr, - "number of files must be >= 0 (%ld)\n", - param.num_files); - GOTOERROR(FAIL); - } - - if (ndsets < 0 ) { - fprintf(stderr, - "number of datasets per file must be >= 0 (%ld)\n", - ndsets); - GOTOERROR(FAIL); - } - - if (param.num_procs <= 0 ) { - fprintf(stderr, - "maximum number of process to use must be > 0 (%d)\n", - param.num_procs); - GOTOERROR(FAIL); - } - - /* Validate transfer buffer size & block size*/ - if(blk_size<=0) { - HDfprintf(stderr, - "Transfer block size (%zu) must be > 0\n", blk_size); - GOTOERROR(FAIL); - } - if(buf_size<=0) { - HDfprintf(stderr, - "Transfer buffer size (%zu) must be > 0\n", buf_size); - GOTOERROR(FAIL); - } - if ((buf_size % blk_size) != 0){ - HDfprintf(stderr, - "Transfer buffer size (%zu) must be a multiple of the " - "interleaved I/O block size (%zu)\n", - buf_size, blk_size); - GOTOERROR(FAIL); - } - if((snbytes%pio_mpi_nprocs_g)!=0) { - HDfprintf(stderr, - "Dataset size (%" H5_PRINTF_LL_WIDTH "d) must be a multiple of the " - "number of processes (%d)\n", - (long long)snbytes, pio_mpi_nprocs_g); - GOTOERROR(FAIL); - } - - if (!param.dim2d){ - if(((snbytes/pio_mpi_nprocs_g)%buf_size)!=0) { - HDfprintf(stderr, - "Dataset size/process (%" H5_PRINTF_LL_WIDTH "d) must be a multiple of the " - "trasfer buffer size (%zu)\n", - (long long)(snbytes/pio_mpi_nprocs_g), buf_size); - GOTOERROR(FAIL); - } - } - else { - if((snbytes%buf_size)!=0) { - HDfprintf(stderr, - "Dataset side size (%" H5_PRINTF_LL_WIDTH "d) must be a multiple of the " - "trasfer buffer size (%zu)\n", - (long long)snbytes, buf_size); - GOTOERROR(FAIL); - } - } - - /* Allocate transfer buffer */ - if ((buffer = malloc(bsize)) == NULL){ - HDfprintf(stderr, "malloc for transfer buffer size (%zu) failed\n", - bsize); - GOTOERROR(FAIL); - } - - if (pio_debug_level >= 4) { - int myrank; - - MPI_Comm_rank(pio_comm_g, &myrank); - - /* output all of the times for all iterations */ - if (myrank == 0) - fprintf(output, "Timer details:\n"); - } - - for (nf = 1; nf <= param.num_files; nf++) { - /* - * Write performance measurement - */ - /* Open file for write */ - char base_name[256]; - - sprintf(base_name, "#pio_tmp_%lu", nf); - pio_create_filename(iot, base_name, fname, sizeof(fname)); - if (pio_debug_level > 0) - HDfprintf(output, "rank %d: data filename=%s\n", - pio_mpi_rank_g, fname); - - /* Need barrier to make sure everyone starts at the same time */ - MPI_Barrier(pio_comm_g); - - set_time(res.timers, HDF5_GROSS_WRITE_FIXED_DIMS, TSTART); - hrc = do_fopen(¶m, fname, &fd, PIO_CREATE | PIO_WRITE); - - VRFY((hrc == SUCCESS), "do_fopen failed"); - - set_time(res.timers, HDF5_FINE_WRITE_FIXED_DIMS, TSTART); - hrc = do_write(&res, &fd, ¶m, ndsets, nbytes, buf_size, buffer); - hrc == SUCCESS; - set_time(res.timers, HDF5_FINE_WRITE_FIXED_DIMS, TSTOP); - - VRFY((hrc == SUCCESS), "do_write failed"); - - /* Close file for write */ - hrc = do_fclose(iot, &fd); - - set_time(res.timers, HDF5_GROSS_WRITE_FIXED_DIMS, TSTOP); - VRFY((hrc == SUCCESS), "do_fclose failed"); - - if (!param.h5_write_only) { - /* - * Read performance measurement - */ - /* Need barrier to make sure everyone is done writing and has - * closed the file. Also to make sure everyone starts reading - * at the same time. - */ - MPI_Barrier(pio_comm_g); - - /* Open file for read */ - set_time(res.timers, HDF5_GROSS_READ_FIXED_DIMS, TSTART); - hrc = do_fopen(¶m, fname, &fd, PIO_READ); - - VRFY((hrc == SUCCESS), "do_fopen failed"); - - set_time(res.timers, HDF5_FINE_READ_FIXED_DIMS, TSTART); - hrc = do_read(&res, &fd, ¶m, ndsets, nbytes, buf_size, buffer); - set_time(res.timers, HDF5_FINE_READ_FIXED_DIMS, TSTOP); - VRFY((hrc == SUCCESS), "do_read failed"); - - /* Close file for read */ - hrc = do_fclose(iot, &fd); - - set_time(res.timers, HDF5_GROSS_READ_FIXED_DIMS, TSTOP); - VRFY((hrc == SUCCESS), "do_fclose failed"); - } - - /* Need barrier to make sure everyone is done with the file */ - /* before it may be removed by do_cleanupfile */ - MPI_Barrier(pio_comm_g); - do_cleanupfile(iot, fname); - } - -done: - /* clean up */ - /* release HDF5 objects */ - - /* close any opened files */ - /* no remove(fname) because that should have happened normally. */ - switch (iot) { - case POSIXIO: - if (fd.posixfd != -1) - hrc = do_fclose(iot, &fd); - break; - case MPIO: - if (fd.mpifd != MPI_FILE_NULL) - hrc = do_fclose(iot, &fd); - break; - case PHDF5: - if (fd.h5fd != -1) - hrc = do_fclose(iot, &fd); - break; - } - - /* release generic resources */ - if(buffer) - free(buffer); - res.ret_code = ret_code; - return res; -} - -/* - * Function: pio_create_filename - * Purpose: Create a new filename to write to. Determine the correct - * suffix to append to the filename by the type of I/O we're - * doing. Also, place in the /tmp/{$USER,$LOGIN} directory if - * USER or LOGIN are specified in the environment. - * Return: Pointer to filename or NULL - * Programmer: Bill Wendling, 21. November 2001 - * Modifications: - */ - static char * -pio_create_filename(iotype iot, const char *base_name, char *fullname, size_t size) -{ - const char *prefix, *suffix = ""; - char *ptr, last = '\0'; - size_t i, j; - - if (!base_name || !fullname || size < 1) - return NULL; - - HDmemset(fullname, 0, size); - - switch (iot) { - case POSIXIO: - suffix = ".posix"; - break; - case MPIO: - suffix = ".mpio"; - break; - case PHDF5: - suffix = ".h5"; - break; - } - - /* First use the environment variable and then try the constant */ - prefix = HDgetenv("HDF5_PARAPREFIX"); - -#ifdef HDF5_PARAPREFIX - if (!prefix) - prefix = HDF5_PARAPREFIX; -#endif /* HDF5_PARAPREFIX */ - - /* Prepend the prefix value to the base name */ - if (prefix && *prefix) { - /* If the prefix specifies the HDF5_PARAPREFIX directory, then - * default to using the "/tmp/$USER" or "/tmp/$LOGIN" - * directory instead. */ - register char *user, *login, *subdir; - - user = HDgetenv("USER"); - login = HDgetenv("LOGIN"); - subdir = (user ? user : login); - - if (subdir) { - for (i = 0; i < size-1 && prefix[i]; i++) - fullname[i] = prefix[i]; - - fullname[i++] = '/'; - - for (j = 0; i < size && subdir[j]; i++, j++) - fullname[i] = subdir[j]; - } - else { - /* We didn't append the prefix yet */ - HDstrncpy(fullname, prefix, size); - fullname[size - 1] = '\0'; - } - - if ((HDstrlen(fullname) + HDstrlen(base_name) + 1) < size) { - /* Append the base_name with a slash first. Multiple slashes are - * handled below. */ - h5_stat_t buf; - - if (HDstat(fullname, &buf) < 0) - /* The directory doesn't exist just yet */ - if (HDmkdir(fullname, (mode_t) 0755) < 0 && errno != EEXIST) { - /* We couldn't make the "/tmp/${USER,LOGIN}" subdirectory. - * Default to PREFIX's original prefix value. */ - HDstrcpy(fullname, prefix); - } - - HDstrcat(fullname, "/"); - HDstrcat(fullname, base_name); - } - else { - /* Buffer is too small */ - return NULL; - } - } - else if (HDstrlen(base_name) >= size) { - /* Buffer is too small */ - return NULL; - } - else { - HDstrcpy(fullname, base_name); - } - - /* Append a suffix */ - if (suffix) { - if (HDstrlen(fullname) + HDstrlen(suffix) >= size) - return NULL; - - HDstrcat(fullname, suffix); - } - - /* Remove any double slashes in the filename */ - for (ptr = fullname, i = j = 0; ptr && i < size; i++, ptr++) { - if (*ptr != '/' || last != '/') - fullname[j++] = *ptr; - - last = *ptr; - } - - return fullname; -} - -/* - * Function: do_write - * Purpose: Write the required amount of data to the file. - * Return: SUCCESS or FAIL - * Programmer: Albert Cheng, Bill Wendling, 2001/12/13 - * Modifications: - * Added 2D testing (Christian Chilan, 10. August 2005) - */ - static herr_t -do_write(results *res, file_descr *fd, parameters *parms, long ndsets, - off_t nbytes, size_t buf_size, void *buffer) -{ - int ret_code = SUCCESS; - int rc; /*routine return code */ - long ndset; - size_t blk_size; /* The block size to subdivide the xfer buffer into */ - off_t nbytes_xfer; /* Total number of bytes transferred so far */ - size_t nbytes_xfer_advance; /* Number of bytes transferred in a single I/O operation */ - size_t nbytes_toxfer; /* Number of bytes to transfer a particular time */ - char dname[64]; - off_t dset_offset=0; /*dataset offset in a file */ - off_t bytes_begin[2]; /*first elmt this process transfer */ - off_t bytes_count; /*number of elmts this process transfer */ - off_t snbytes=0; /*size of a side of the dataset square */ - unsigned char *buf_p; /* Current buffer pointer */ - - /* POSIX variables */ - off_t file_offset; /* File offset of the next transfer */ - off_t file_offset_advance; /* File offset advance after each I/O operation */ - off_t posix_file_offset; /* Base file offset of the next transfer */ - - /* MPI variables */ - MPI_Offset mpi_file_offset; /* Base file offset of the next transfer*/ - MPI_Offset mpi_offset; /* Offset in MPI file */ - MPI_Offset mpi_offset_advance; /* Offset advance after each I/O operation */ - MPI_Datatype mpi_file_type; /* MPI derived type for 1D file */ - MPI_Datatype mpi_blk_type; /* MPI derived type for 1D buffer */ - MPI_Datatype mpi_cont_type; /* MPI derived type for 2D contiguous file */ - MPI_Datatype mpi_partial_buffer_cont; /* MPI derived type for partial 2D contiguous buffer */ - MPI_Datatype mpi_inter_type; /* MPI derived type for 2D interleaved file */ - MPI_Datatype mpi_partial_buffer_inter; /* MPI derived type for partial 2D interleaved buffer */ - MPI_Datatype mpi_full_buffer; /* MPI derived type for 2D full buffer */ - MPI_Datatype mpi_full_chunk; /* MPI derived type for 2D full chunk */ - MPI_Datatype mpi_chunk_inter_type; /* MPI derived type for 2D chunk interleaved file */ - MPI_Datatype mpi_collective_type; /* Generic MPI derived type for 2D collective access */ - MPI_Status mpi_status; - int mrc; /* MPI return code */ - - /* HDF5 variables */ - herr_t hrc; /*HDF5 return code */ - hsize_t h5dims[2]; /*dataset dim sizes */ - hid_t h5dset_space_id = -1; /*dataset space ID */ - hid_t h5mem_space_id = -1; /*memory dataspace ID */ - hid_t h5ds_id = -1; /*dataset handle */ - hsize_t h5block[2]; /*dataspace selection */ - hsize_t h5stride[2]; - hsize_t h5count[2]; - hsize_t h5start[2]; - hssize_t h5offset[2]; /* Selection offset within dataspace */ - hid_t h5dcpl = -1; /* Dataset creation property list */ - hid_t h5dxpl = -1; /* Dataset transfer property list */ - - /* Get the parameters from the parameter block */ - blk_size=parms->blk_size; - - /* There are two kinds of transfer patterns, contiguous and interleaved. - * Let 0,1,2,...,n be data accessed by process 0,1,2,...,n - * where n is rank of the last process. - * In contiguous pattern, data are accessed as - * 000...111...222...nnn... - * In interleaved pattern, data are accessed as - * 012...n012...n... - * These are all in the scope of one dataset. - */ - - /* 1D dataspace */ - if (!parms->dim2d){ - /* Contiguous Pattern: */ - if (!parms->interleaved) { - bytes_begin[0] = (off_t)(((double)nbytes*pio_mpi_rank_g)/pio_mpi_nprocs_g); - } /* end if */ - /* Interleaved Pattern: */ - else { - bytes_begin[0] = (off_t)(blk_size*pio_mpi_rank_g); - } /* end else */ - - /* Prepare buffer for verifying data */ - if (parms->verify) - memset(buffer,pio_mpi_rank_g+1,buf_size); - }/* end if */ - /* 2D dataspace */ - else { - /* nbytes is always the number of bytes per dataset (1D or 2D). If the - dataspace is 2D, snbytes is the size of a side of the dataset square. - */ - snbytes = (off_t)sqrt(nbytes); - - /* Contiguous Pattern: */ - if (!parms->interleaved) { - bytes_begin[0] = (off_t)((double)snbytes*pio_mpi_rank_g / pio_mpi_nprocs_g); - bytes_begin[1] = 0; - } /* end if */ - /* Interleaved Pattern: */ - else { - bytes_begin[0] = 0; - - if(!parms->h5_use_chunks || parms->io_type==PHDF5) - bytes_begin[1] = (off_t)(blk_size*pio_mpi_rank_g); - else - bytes_begin[1] = (off_t)(blk_size*blk_size*pio_mpi_rank_g); - } /* end else */ - - /* Prepare buffer for verifying data */ - if (parms->verify) - memset(buffer,pio_mpi_rank_g+1,buf_size*blk_size); - } /* end else */ - - - /* Calculate the total number of bytes (bytes_count) to be - * transferred by this process. It may be different for different - * transfer pattern due to rounding to integral values. - */ - /* - * Calculate the beginning bytes of this process and the next. - * bytes_count is the difference between these two beginnings. - * This way, it eliminates any rounding errors. - * (This is tricky, don't mess with the formula, rounding errors - * can easily get introduced) */ - bytes_count = (off_t)(((double)nbytes*(pio_mpi_rank_g+1)) / pio_mpi_nprocs_g) - - (off_t)(((double)nbytes*pio_mpi_rank_g) / pio_mpi_nprocs_g); - - /* debug */ - if (pio_debug_level >= 4) { - HDprint_rank(output); - if (!parms->dim2d) { - HDfprintf(output, "Debug(do_write): " - "buf_size=%zu, bytes_begin=%" H5_PRINTF_LL_WIDTH "d, bytes_count=%" H5_PRINTF_LL_WIDTH "d\n", - buf_size, (long long)bytes_begin[0], - (long long)bytes_count); - } else { - HDfprintf(output, "Debug(do_write): " - "linear buf_size=%zu, bytes_begin=(%" H5_PRINTF_LL_WIDTH "d,%" H5_PRINTF_LL_WIDTH "d), bytes_count=%" H5_PRINTF_LL_WIDTH "d\n", - buf_size*blk_size, (long long)bytes_begin[0], - (long long)bytes_begin[1], (long long)bytes_count); - } - } - - /* I/O Access specific setup */ - switch (parms->io_type) { - case POSIXIO: - /* No extra setup */ - break; - - case MPIO: /* MPI-I/O setup */ - /* 1D dataspace */ - if (!parms->dim2d){ - /* Build block's derived type */ - mrc = MPI_Type_contiguous((int)blk_size, - MPI_BYTE, &mpi_blk_type); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_CREATE"); - - /* Build file's derived type */ - mrc = MPI_Type_vector((int)(buf_size/blk_size), (int)1, - (int)pio_mpi_nprocs_g, mpi_blk_type, &mpi_file_type); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_CREATE"); - - /* Commit file type */ - mrc = MPI_Type_commit( &mpi_file_type ); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_COMMIT"); - - /* Commit buffer type */ - mrc = MPI_Type_commit( &mpi_blk_type ); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_COMMIT"); - } /* end if */ - /* 2D dataspace */ - else { - /* Build partial buffer derived type for contiguous access */ - - mrc = MPI_Type_contiguous((int)buf_size, MPI_BYTE, - &mpi_partial_buffer_cont); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_CREATE"); - - /* Commit partial buffer derived type */ - mrc = MPI_Type_commit(&mpi_partial_buffer_cont); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_COMMIT"); - - /* Build contiguous file's derived type */ - mrc = MPI_Type_vector((int)blk_size, (int)1, (int)(snbytes/buf_size), - mpi_partial_buffer_cont, &mpi_cont_type); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_CREATE"); - - /* Commit contiguous file type */ - mrc = MPI_Type_commit(&mpi_cont_type); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_COMMIT"); - - /* Build partial buffer derived type for interleaved access */ - mrc = MPI_Type_contiguous((int)blk_size, MPI_BYTE, - &mpi_partial_buffer_inter); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_CREATE"); - - /* Commit partial buffer derived type */ - mrc = MPI_Type_commit(&mpi_partial_buffer_inter); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_COMMIT"); - - /* Build interleaved file's derived type */ - mrc = MPI_Type_vector((int)buf_size, (int)1, (int)(snbytes/blk_size), - mpi_partial_buffer_inter, &mpi_inter_type); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_CREATE"); - - /* Commit interleaved file type */ - mrc = MPI_Type_commit(&mpi_inter_type); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_COMMIT"); - - /* Build full buffer derived type */ - mrc = MPI_Type_contiguous((int)(blk_size*buf_size), MPI_BYTE, - &mpi_full_buffer); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_CREATE"); - - /* Commit full buffer derived type */ - mrc = MPI_Type_commit(&mpi_full_buffer); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_COMMIT"); - - /* Build full chunk derived type */ - mrc = MPI_Type_contiguous((int)(blk_size*blk_size), MPI_BYTE, - &mpi_full_chunk); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_CREATE"); - - /* Commit full chunk derived type */ - mrc = MPI_Type_commit(&mpi_full_chunk); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_COMMIT"); - - /* Build chunk interleaved file's derived type */ - mrc = MPI_Type_vector((int)(buf_size/blk_size), (int)1, (int)(snbytes/blk_size), - mpi_full_chunk, &mpi_chunk_inter_type); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_CREATE"); - - /* Commit chunk interleaved file type */ - mrc = MPI_Type_commit(&mpi_chunk_inter_type); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_COMMIT"); - - } /* end else */ - break; - - case PHDF5: /* HDF5 setup */ - /* 1D dataspace */ - if (!parms->dim2d){ - if(nbytes>0) { - /* define a contiguous dataset of nbytes native bytes */ - h5dims[0] = nbytes; - h5dset_space_id = H5Screate_simple(1, h5dims, NULL); - VRFY((h5dset_space_id >= 0), "H5Screate_simple"); - - /* Set up the file dset space id to select the pattern to access */ - if (!parms->interleaved){ - /* Contiguous pattern */ - h5start[0] = bytes_begin[0]; - h5stride[0] = h5block[0] = blk_size; - h5count[0] = buf_size/blk_size; - } /* end if */ - else { - /* Interleaved access pattern */ - /* Skip offset over blocks of other processes */ - h5start[0] = bytes_begin[0]; - h5stride[0] = blk_size*pio_mpi_nprocs_g; - h5block[0] = blk_size; - h5count[0] = buf_size/blk_size; - } /* end else */ - hrc = H5Sselect_hyperslab(h5dset_space_id, H5S_SELECT_SET, - h5start, h5stride, h5count, h5block); - VRFY((hrc >= 0), "H5Sselect_hyperslab"); - } /* end if */ - else { - h5dset_space_id = H5Screate(H5S_SCALAR); - VRFY((h5dset_space_id >= 0), "H5Screate"); - } /* end else */ - - /* Create the memory dataspace that corresponds to the xfer buffer */ - if(buf_size>0) { - h5dims[0] = buf_size; - h5mem_space_id = H5Screate_simple(1, h5dims, NULL); - VRFY((h5mem_space_id >= 0), "H5Screate_simple"); - } /* end if */ - else { - h5mem_space_id = H5Screate(H5S_SCALAR); - VRFY((h5mem_space_id >= 0), "H5Screate"); - } /* end else */ - } /* end if */ - /* 2D dataspace */ - else { - if(nbytes>0) { - /* define a contiguous dataset of nbytes native bytes */ - h5dims[0] = snbytes; - h5dims[1] = snbytes; - h5dset_space_id = H5Screate_simple(2, h5dims, NULL); - VRFY((h5dset_space_id >= 0), "H5Screate_simple"); - - /* Set up the file dset space id to select the pattern to access */ - if (!parms->interleaved){ - /* Contiguous pattern */ - h5start[0] = bytes_begin[0]; - h5start[1] = bytes_begin[1]; - h5stride[0] = 1; - h5stride[1] = h5block[0] = h5block[1] = blk_size; - h5count[0] = 1; - h5count[1] = buf_size/blk_size; - } /* end if */ - else { - /* Interleaved access pattern */ - /* Skip offset over blocks of other processes */ - h5start[0] = bytes_begin[0]; - h5start[1] = bytes_begin[1]; - h5stride[0] = blk_size; - h5stride[1] = blk_size*pio_mpi_nprocs_g; - h5block[0] = h5block[1] = blk_size; - h5count[0] = buf_size/blk_size; - h5count[1] = 1; - } /* end else */ - hrc = H5Sselect_hyperslab(h5dset_space_id, H5S_SELECT_SET, - h5start, h5stride, h5count, h5block); - VRFY((hrc >= 0), "H5Sselect_hyperslab"); - } /* end if */ - else { - h5dset_space_id = H5Screate(H5S_SCALAR); - VRFY((h5dset_space_id >= 0), "H5Screate"); - } /* end else */ - - /* Create the memory dataspace that corresponds to the xfer buffer */ - if(buf_size>0) { - if (!parms->interleaved){ - h5dims[0] = blk_size; - h5dims[1] = buf_size; - }else{ - h5dims[0] = buf_size; - h5dims[1] = blk_size; - } - h5mem_space_id = H5Screate_simple(2, h5dims, NULL); - VRFY((h5mem_space_id >= 0), "H5Screate_simple"); - } /* end if */ - else { - h5mem_space_id = H5Screate(H5S_SCALAR); - VRFY((h5mem_space_id >= 0), "H5Screate"); - } /* end else */ - } /* end else */ - - /* Create the dataset transfer property list */ - h5dxpl = H5Pcreate(H5P_DATASET_XFER); - if (h5dxpl < 0) { - fprintf(stderr, "HDF5 Property List Create failed\n"); - GOTOERROR(FAIL); - } - - /* Change to collective I/O, if asked */ - if(parms->collective) { - hrc = H5Pset_dxpl_mpio(h5dxpl, H5FD_MPIO_COLLECTIVE); - if (hrc < 0) { - fprintf(stderr, "HDF5 Property List Set failed\n"); - GOTOERROR(FAIL); - } /* end if */ - } /* end if */ - break; - } /* end switch */ - - for (ndset = 1; ndset <= ndsets; ++ndset) { - - /* Calculate dataset offset within a file */ - - /* create dataset */ - switch (parms->io_type) { - case POSIXIO: - case MPIO: - /* both posix and mpi io just need dataset offset in file*/ - dset_offset = (ndset - 1) * nbytes; - break; - - case PHDF5: - h5dcpl = H5Pcreate(H5P_DATASET_CREATE); - if (h5dcpl < 0) { - fprintf(stderr, "HDF5 Property List Create failed\n"); - GOTOERROR(FAIL); - } - /* 1D dataspace */ - if (!parms->dim2d){ - /* Make the dataset chunked if asked */ - if(parms->h5_use_chunks) { - /* Set the chunk size to be the same as the buffer size */ - h5dims[0] = blk_size; - hrc = H5Pset_chunk(h5dcpl, 1, h5dims); - if (hrc < 0) { - fprintf(stderr, "HDF5 Property List Set failed\n"); - GOTOERROR(FAIL); - } /* end if */ - } /* end if */ - }/* end if */ - else{ - /* 2D dataspace */ - if(parms->h5_use_chunks) { - /* Set the chunk size to be the same as the block size */ - h5dims[0] = blk_size; - h5dims[1] = blk_size; - hrc = H5Pset_chunk(h5dcpl, 2, h5dims); - if (hrc < 0) { - fprintf(stderr, "HDF5 Property List Set failed\n"); - GOTOERROR(FAIL); - } /* end if */ - } /* end if */ - }/* end else */ - - sprintf(dname, "Dataset_%ld", ndset); - h5ds_id = H5DCREATE(fd->h5fd, dname, ELMT_H5_TYPE, - h5dset_space_id, h5dcpl); - - if (h5ds_id < 0) { - fprintf(stderr, "HDF5 Dataset Create failed\n"); - GOTOERROR(FAIL); - } - - hrc = H5Pclose(h5dcpl); - /* verifying the close of the dcpl */ - if (hrc < 0) { - fprintf(stderr, "HDF5 Property List Close failed\n"); - GOTOERROR(FAIL); - } - break; - } - - /* The task is to transfer bytes_count bytes, starting at - * bytes_begin position, using transfer buffer of buf_size bytes. - * If interleaved, select buf_size at a time, in round robin - * fashion, according to number of process. Otherwise, select - * all bytes_count in contiguous. - */ - nbytes_xfer = 0 ; - - /* 1D dataspace */ - if (!parms->dim2d){ - /* Set base file offset for all I/O patterns and POSIX access */ - posix_file_offset = dset_offset + bytes_begin[0]; - - /* Set base file offset for all I/O patterns and MPI access */ - mpi_file_offset = (MPI_Offset)(dset_offset + bytes_begin[0]); - } /* end if */ - else { - /* Set base file offset for all I/O patterns and POSIX access */ - posix_file_offset=dset_offset + bytes_begin[0]*snbytes+ - bytes_begin[1]; - - /* Set base file offset for all I/O patterns and MPI access */ - mpi_file_offset=(MPI_Offset)(dset_offset + bytes_begin[0]*snbytes+ - bytes_begin[1]); - } /* end else */ - - /* Start "raw data" write timer */ - set_time(res->timers, HDF5_RAW_WRITE_FIXED_DIMS, TSTART); - - while (nbytes_xfer < bytes_count){ - /* Write */ - /* Calculate offset of write within a dataset/file */ - switch (parms->io_type) { - case POSIXIO: - /* 1D dataspace */ - if (!parms->dim2d){ - /* Contiguous pattern */ - if (!parms->interleaved) { - /* Compute file offset */ - file_offset = posix_file_offset + (off_t)nbytes_xfer; - - /* only care if seek returns error */ - rc = POSIXSEEK(fd->posixfd, file_offset) < 0 ? -1 : 0; - VRFY((rc==0), "POSIXSEEK"); - - /* check if all bytes are written */ - rc = ((ssize_t)buf_size == - POSIXWRITE(fd->posixfd, buffer, buf_size)); - VRFY((rc != 0), "POSIXWRITE"); - - /* Advance global offset in dataset */ - nbytes_xfer+=buf_size; - } /* end if */ - /* Interleaved access pattern */ - else { - /* Set the base of user's buffer */ - buf_p=(unsigned char *)buffer; - - /* Set the number of bytes to transfer this time */ - nbytes_toxfer = buf_size; - - /* Loop over the buffers to write */ - while(nbytes_toxfer>0) { - /* Skip offset over blocks of other processes */ - file_offset = posix_file_offset + - (off_t)(nbytes_xfer*pio_mpi_nprocs_g); - - /* only care if seek returns error */ - rc = POSIXSEEK(fd->posixfd, file_offset) < 0 ? -1 : 0; - VRFY((rc==0), "POSIXSEEK"); - - /* check if all bytes are written */ - rc = ((ssize_t)blk_size == - POSIXWRITE(fd->posixfd, buf_p, blk_size)); - VRFY((rc != 0), "POSIXWRITE"); - - /* Advance location in buffer */ - buf_p+=blk_size; - - /* Advance global offset in dataset */ - nbytes_xfer+=blk_size; - - /* Decrement number of bytes left this time */ - nbytes_toxfer-=blk_size; - } /* end while */ - } /* end else */ - } /* end if */ - /* 2D dataspace */ - else { - /* Contiguous storage */ - if (!parms->h5_use_chunks) { - /* Contiguous access pattern */ - if (!parms->interleaved) { - /* Compute file offset */ - file_offset=posix_file_offset+(off_t)(((nbytes_xfer/blk_size) - /snbytes)*(blk_size*snbytes)+((nbytes_xfer/blk_size)%snbytes)); - - /* Number of bytes to be transferred per I/O operation */ - nbytes_xfer_advance = buf_size; - - /* Global offset advance after each I/O operation */ - file_offset_advance = (off_t)snbytes; - } /* end if */ - /* Interleaved access pattern */ - else { - /* Compute file offset */ - file_offset=posix_file_offset+(off_t)((((nbytes_xfer/buf_size) - *pio_mpi_nprocs_g)/snbytes)*(buf_size*snbytes) - +((nbytes_xfer/buf_size)*pio_mpi_nprocs_g)%snbytes); - - /* Number of bytes to be transferred per I/O operation */ - nbytes_xfer_advance = blk_size; - - /* Global offset advance after each I/O operation */ - file_offset_advance = (off_t)snbytes; - } /* end else */ - } /* end if */ - /* Chunked storage */ - else { - /*Contiguous access pattern */ - if (!parms->interleaved) { - /* Compute file offset */ - file_offset=posix_file_offset+(off_t)nbytes_xfer; - - /* Number of bytes to be transferred per I/O operation */ - nbytes_xfer_advance = blk_size * buf_size; - - /* Global offset advance after each I/O operation */ - file_offset_advance = 0; - } /* end if */ - /*Interleaved access pattern */ - else { - /* Compute file offset */ - /* Before simplification */ - /* file_offset=posix_file_offset+(off_t)((nbytes_xfer/(buf_size/blk_size) - *pio_mpi_nprocs_g)/(snbytes/blk_size*(blk_size*blk_size))*(buf_size/blk_size - *snbytes/blk_size*(blk_size*blk_size))+((nbytes_xfer/(buf_size/blk_size)) - *pio_mpi_nprocs_g)%(snbytes/blk_size*(blk_size*blk_size))); */ - - file_offset=posix_file_offset+(off_t)(((nbytes_xfer/(buf_size/blk_size) - *pio_mpi_nprocs_g)/(snbytes*blk_size))*(buf_size*snbytes)+((nbytes_xfer/(buf_size/blk_size)) - *pio_mpi_nprocs_g)%(snbytes*blk_size)); - - /* Number of bytes to be transferred per I/O operation */ - nbytes_xfer_advance = blk_size * blk_size; - - /* Global offset advance after each I/O operation */ - /* file_offset_advance = (off_t)(snbytes/blk_size*(blk_size*blk_size)); */ - file_offset_advance = (off_t)(snbytes*blk_size); - } /* end else */ - } /* end else */ - - /* Common code for file access */ - - /* Set the base of user's buffer */ - buf_p = (unsigned char *)buffer; - - /* Set the number of bytes to transfer this time */ - nbytes_toxfer = buf_size*blk_size; - - /* Loop over portions of the buffer to write */ - while(nbytes_toxfer>0){ - /* only care if seek returns error */ - rc = POSIXSEEK(fd->posixfd, file_offset) < 0 ? -1 : 0; - VRFY((rc==0), "POSIXSEEK"); - - /* check if all bytes are written */ - rc = ((ssize_t)nbytes_xfer_advance == - POSIXWRITE(fd->posixfd, buf_p, nbytes_xfer_advance)); - VRFY((rc != 0), "POSIXWRITE"); - - /* Advance location in buffer */ - buf_p+=nbytes_xfer_advance; - - /* Advance global offset in dataset */ - nbytes_xfer+=nbytes_xfer_advance; - - /* Decrement number of bytes left this time */ - nbytes_toxfer-=nbytes_xfer_advance; - - /* Partially advance file offset */ - file_offset+=file_offset_advance; - } /* end while */ - - } /* end else */ - - break; - - case MPIO: - /* 1D dataspace */ - if (!parms->dim2d){ - /* Independent file access */ - if(!parms->collective) { - /* Contiguous pattern */ - if (!parms->interleaved){ - /* Compute offset in file */ - mpi_offset = mpi_file_offset + - nbytes_xfer; - - /* Perform independent write */ - mrc = MPI_File_write_at(fd->mpifd, mpi_offset, buffer, - (int)(buf_size/blk_size), mpi_blk_type, - &mpi_status); - VRFY((mrc==MPI_SUCCESS), "MPIO_WRITE"); - - /* Advance global offset in dataset */ - nbytes_xfer+=buf_size; - } /* end if */ - /* Interleaved access pattern */ - else { - /* Set the base of user's buffer */ - buf_p=(unsigned char *)buffer; - - /* Set the number of bytes to transfer this time */ - nbytes_toxfer = buf_size; - - /* Loop over the buffers to write */ - while(nbytes_toxfer>0) { - /* Skip offset over blocks of other processes */ - mpi_offset = mpi_file_offset + - (nbytes_xfer*pio_mpi_nprocs_g); - - /* Perform independent write */ - mrc = MPI_File_write_at(fd->mpifd, mpi_offset, buf_p, - (int)1, mpi_blk_type, &mpi_status); - VRFY((mrc==MPI_SUCCESS), "MPIO_WRITE"); - - /* Advance location in buffer */ - buf_p+=blk_size; - - /* Advance global offset in dataset */ - nbytes_xfer+=blk_size; - - /* Decrement number of bytes left this time */ - nbytes_toxfer-=blk_size; - } /* end while */ - } /* end else */ - } /* end if */ - /* Collective file access */ - else { - /* Contiguous access pattern */ - if (!parms->interleaved){ - /* Compute offset in file */ - mpi_offset = mpi_file_offset + - nbytes_xfer; - - /* Perform independent write */ - mrc = MPI_File_write_at_all(fd->mpifd, mpi_offset, buffer, - (int)(buf_size/blk_size), mpi_blk_type, &mpi_status); - VRFY((mrc==MPI_SUCCESS), "MPIO_WRITE"); - - /* Advance global offset in dataset */ - nbytes_xfer+=buf_size; - } /* end if */ - /* Interleaved access pattern */ - else { - /* Compute offset in file */ - mpi_offset = mpi_file_offset + - (nbytes_xfer*pio_mpi_nprocs_g); - - /* Set the file view */ - mrc = MPI_File_set_view(fd->mpifd, mpi_offset, mpi_blk_type, - mpi_file_type, (char*)"native", h5_io_info_g); - VRFY((mrc==MPI_SUCCESS), "MPIO_VIEW"); - - /* Perform write */ - mrc = MPI_File_write_at_all(fd->mpifd, 0, buffer, - (int)(buf_size/blk_size), mpi_blk_type, &mpi_status); - VRFY((mrc==MPI_SUCCESS), "MPIO_WRITE"); - - /* Advance global offset in dataset */ - nbytes_xfer+=buf_size; - } /* end else */ - } /* end else */ - } /* end if */ - /* 2D dataspace */ - else { - /* Contiguous storage */ - if (!parms->h5_use_chunks) { - /* Contiguous access pattern */ - if (!parms->interleaved) { - /* Compute offset in file */ - mpi_offset=mpi_file_offset+((nbytes_xfer/blk_size)/snbytes)* - (blk_size*snbytes)+((nbytes_xfer/blk_size)%snbytes); - - /* Number of bytes to be transferred per I/O operation */ - nbytes_xfer_advance = buf_size; - - /* Global offset advance after each I/O operation */ - mpi_offset_advance = snbytes; - - /* MPI type to be used for collective access */ - mpi_collective_type = mpi_cont_type; - } /* end if */ - /* Interleaved access pattern */ - else { - /* Compute offset in file */ - mpi_offset=mpi_file_offset+(((nbytes_xfer/buf_size)*pio_mpi_nprocs_g)/snbytes)* - (buf_size*snbytes)+((nbytes_xfer/buf_size)*pio_mpi_nprocs_g)%snbytes; - - /* Number of bytes to be transferred per I/O operation */ - nbytes_xfer_advance = blk_size; - - /* Global offset advance after each I/O operation */ - mpi_offset_advance = snbytes; - - /* MPI type to be used for collective access */ - mpi_collective_type = mpi_inter_type; - } /* end else */ - } /* end if */ - /* Chunked storage */ - else { - /*Contiguous access pattern */ - if (!parms->interleaved) { - /* Compute offset in file */ - mpi_offset=mpi_file_offset+nbytes_xfer; - - /* Number of bytes to be transferred per I/O operation */ - nbytes_xfer_advance = blk_size * buf_size; - - /* Global offset advance after each I/O operation */ - mpi_offset_advance = 0; - - /* MPI type to be used for collective access */ - mpi_collective_type = mpi_full_buffer; - } /* end if */ - /*Interleaved access pattern */ - else { - /* Compute offset in file */ - /* Before simplification */ - /* mpi_offset=mpi_file_offset+(nbytes_xfer/(buf_size/blk_size) - *pio_mpi_nprocs_g)/(snbytes/blk_size*(blk_size*blk_size))* - (buf_size/blk_size*snbytes/blk_size*(blk_size*blk_size))+ - ((nbytes_xfer/(buf_size/blk_size))*pio_mpi_nprocs_g)%(snbytes - /blk_size*(blk_size*blk_size)); */ - mpi_offset=mpi_file_offset+((nbytes_xfer/(buf_size/blk_size) - *pio_mpi_nprocs_g)/(snbytes*blk_size))*(buf_size*snbytes) - +((nbytes_xfer/(buf_size/blk_size))*pio_mpi_nprocs_g)%(snbytes*blk_size); - - /* Number of bytes to be transferred per I/O operation */ - nbytes_xfer_advance = blk_size * blk_size; - - /* Global offset advance after each I/O operation */ - /* mpi_offset_advance = (MPI_Offset)(snbytes/blk_size*(blk_size*blk_size)); */ - mpi_offset_advance = (MPI_Offset)(snbytes*blk_size); - - /* MPI type to be used for collective access */ - mpi_collective_type = mpi_chunk_inter_type; - } /* end else */ - } /* end else */ - - /* Common code for independent file access */ - if (!parms->collective) { - /* Set the base of user's buffer */ - buf_p = (unsigned char *)buffer; - - /* Set the number of bytes to transfer this time */ - nbytes_toxfer = buf_size * blk_size; - - /* Loop over portions of the buffer to write */ - while(nbytes_toxfer>0){ - /* Perform independent write */ - mrc = MPI_File_write_at(fd->mpifd, mpi_offset, buf_p, - (int)nbytes_xfer_advance, MPI_BYTE, &mpi_status); - VRFY((mrc==MPI_SUCCESS), "MPIO_WRITE"); - - /* Advance location in buffer */ - buf_p+=nbytes_xfer_advance; - - /* Advance global offset in dataset */ - nbytes_xfer+=nbytes_xfer_advance; - - /* Decrement number of bytes left this time */ - nbytes_toxfer-=nbytes_xfer_advance; - - /* Partially advance global offset in dataset */ - mpi_offset+=mpi_offset_advance; - } /* end while */ - } /* end if */ - - /* Common code for collective file access */ - else { - /* Set the file view */ - mrc = MPI_File_set_view(fd->mpifd, mpi_offset, MPI_BYTE, - mpi_collective_type, (char *)"native", h5_io_info_g); - VRFY((mrc==MPI_SUCCESS), "MPIO_VIEW"); - - /* Perform write */ - MPI_File_write_at_all(fd->mpifd, 0, buffer,(int)(buf_size*blk_size), - MPI_BYTE, &mpi_status); - VRFY((mrc==MPI_SUCCESS), "MPIO_WRITE"); - - /* Advance global offset in dataset */ - nbytes_xfer+=buf_size*blk_size; - } /* end else */ - - } /* end else */ - - break; - - case PHDF5: - /* 1D dataspace */ - if (!parms->dim2d){ - /* Set up the file dset space id to move the selection to process */ - if (!parms->interleaved){ - /* Contiguous pattern */ - h5offset[0] = nbytes_xfer; - } /* end if */ - else { - /* Interleaved access pattern */ - /* Skip offset over blocks of other processes */ - h5offset[0] = (nbytes_xfer*pio_mpi_nprocs_g); - } /* end else */ - hrc = H5Soffset_simple(h5dset_space_id, h5offset); - VRFY((hrc >= 0), "H5Soffset_simple"); - - /* Write the buffer out */ - hrc = H5Dwrite(h5ds_id, ELMT_H5_TYPE, h5mem_space_id, - h5dset_space_id, h5dxpl, buffer); - VRFY((hrc >= 0), "H5Dwrite"); - - /* Increment number of bytes transferred */ - nbytes_xfer += buf_size; - } /* end if */ - /* 2D dataspace */ - else { - /* Set up the file dset space id to move the selection to process */ - if (!parms->interleaved){ - /* Contiguous pattern */ - h5offset[0] = (nbytes_xfer/(snbytes*blk_size))*blk_size; - h5offset[1] = (nbytes_xfer%(snbytes*blk_size))/blk_size; - - } /* end if */ - else { - /* Interleaved access pattern */ - /* Skip offset over blocks of other processes */ - h5offset[0] = ((nbytes_xfer*pio_mpi_nprocs_g)/(snbytes*buf_size))*buf_size; - h5offset[1] = ((nbytes_xfer*pio_mpi_nprocs_g)%(snbytes*buf_size))/buf_size; - - } /* end else */ - hrc = H5Soffset_simple(h5dset_space_id, h5offset); - VRFY((hrc >= 0), "H5Soffset_simple"); - - /* Write the buffer out */ - hrc = H5Dwrite(h5ds_id, ELMT_H5_TYPE, h5mem_space_id, - h5dset_space_id, h5dxpl, buffer); - VRFY((hrc >= 0), "H5Dwrite"); - - /* Increment number of bytes transferred */ - nbytes_xfer += buf_size*blk_size; - - } /* end else */ - - break; - } /* switch (parms->io_type) */ - } /* end while */ - - /* Stop "raw data" write timer */ - set_time(res->timers, HDF5_RAW_WRITE_FIXED_DIMS, TSTOP); - - /* Calculate write time */ - - /* Close dataset. Only HDF5 needs to do an explicit close. */ - if (parms->io_type == PHDF5) { - hrc = H5Dclose(h5ds_id); - - if (hrc < 0) { - fprintf(stderr, "HDF5 Dataset Close failed\n"); - GOTOERROR(FAIL); - } - - h5ds_id = -1; - } /* end if */ - } /* end for */ - -done: - /* release MPI-I/O objects */ - if (parms->io_type == MPIO) { - /* 1D dataspace */ - if (!parms->dim2d){ - /* Free file type */ - mrc = MPI_Type_free( &mpi_file_type ); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_FREE"); - - /* Free buffer type */ - mrc = MPI_Type_free( &mpi_blk_type ); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_FREE"); - } /* end if */ - /* 2D dataspace */ - else { - /* Free partial buffer type for contiguous access */ - mrc = MPI_Type_free( &mpi_partial_buffer_cont ); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_FREE"); - - /* Free contiguous file type */ - mrc = MPI_Type_free( &mpi_cont_type ); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_FREE"); - - /* Free partial buffer type for interleaved access */ - mrc = MPI_Type_free( &mpi_partial_buffer_inter ); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_FREE"); - - /* Free interleaved file type */ - mrc = MPI_Type_free( &mpi_inter_type ); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_FREE"); - - /* Free full buffer type */ - mrc = MPI_Type_free(&mpi_full_buffer); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_FREE"); - - /* Free full chunk type */ - mrc = MPI_Type_free(&mpi_full_chunk); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_FREE"); - - /* Free chunk interleaved file type */ - mrc = MPI_Type_free(&mpi_chunk_inter_type); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_FREE"); - } /* end else */ - } /* end if */ - - /* release HDF5 objects */ - if (h5dset_space_id != -1) { - hrc = H5Sclose(h5dset_space_id); - if (hrc < 0){ - fprintf(stderr, "HDF5 Dataset Space Close failed\n"); - ret_code = FAIL; - } else { - h5dset_space_id = -1; - } - } - - if (h5mem_space_id != -1) { - hrc = H5Sclose(h5mem_space_id); - if (hrc < 0) { - fprintf(stderr, "HDF5 Memory Space Close failed\n"); - ret_code = FAIL; - } else { - h5mem_space_id = -1; - } - } - - if (h5dxpl != -1) { - hrc = H5Pclose(h5dxpl); - if (hrc < 0) { - fprintf(stderr, "HDF5 Dataset Transfer Property List Close failed\n"); - ret_code = FAIL; - } else { - h5dxpl = -1; - } - } - - return ret_code; -} - -/* - * Function: do_read - * Purpose: read the required amount of data from the file. - * Return: SUCCESS or FAIL - * Programmer: Albert Cheng 2001/12/13 - * Modifications: - * Added 2D testing (Christian Chilan, 10. August 2005) - */ - static herr_t -do_read(results *res, file_descr *fd, parameters *parms, long ndsets, - off_t nbytes, size_t buf_size, void *buffer /*out*/) -{ - int ret_code = SUCCESS; - int rc; /*routine return code */ - long ndset; - size_t blk_size; /* The block size to subdivide the xfer buffer into */ - size_t bsize; /* Size of the actual buffer */ - off_t nbytes_xfer; /* Total number of bytes transferred so far */ - size_t nbytes_xfer_advance; /* Number of bytes transferred in a single I/O operation */ - size_t nbytes_toxfer; /* Number of bytes to transfer a particular time */ - char dname[64]; - off_t dset_offset=0; /*dataset offset in a file */ - off_t bytes_begin[2]; /*first elmt this process transfer */ - off_t bytes_count; /*number of elmts this process transfer */ - off_t snbytes=0; /*size of a side of the dataset square */ - unsigned char *buf_p; /* Current buffer pointer */ - - /* POSIX variables */ - off_t file_offset; /* File offset of the next transfer */ - off_t file_offset_advance; /* File offset advance after each I/O operation */ - off_t posix_file_offset; /* Base file offset of the next transfer */ - - /* MPI variables */ - MPI_Offset mpi_file_offset;/* Base file offset of the next transfer*/ - MPI_Offset mpi_offset; /* Offset in MPI file */ - MPI_Offset mpi_offset_advance; /* Offset advance after each I/O operation */ - MPI_Datatype mpi_file_type; /* MPI derived type for 1D file */ - MPI_Datatype mpi_blk_type; /* MPI derived type for 1D buffer */ - MPI_Datatype mpi_cont_type; /* MPI derived type for 2D contiguous file */ - MPI_Datatype mpi_partial_buffer_cont; /* MPI derived type for partial 2D contiguous buffer */ - MPI_Datatype mpi_inter_type; /* MPI derived type for 2D interleaved file */ - MPI_Datatype mpi_partial_buffer_inter; /* MPI derived type for partial 2D interleaved buffer */ - MPI_Datatype mpi_full_buffer; /* MPI derived type for 2D full buffer */ - MPI_Datatype mpi_full_chunk; /* MPI derived type for 2D full chunk */ - MPI_Datatype mpi_chunk_inter_type; /* MPI derived type for 2D chunk interleaved file */ - MPI_Datatype mpi_collective_type; /* Generic MPI derived type for 2D collective access */ - MPI_Status mpi_status; - int mrc; /* MPI return code */ - - /* HDF5 variables */ - herr_t hrc; /*HDF5 return code */ - hsize_t h5dims[2]; /*dataset dim sizes */ - hid_t h5dset_space_id = -1; /*dataset space ID */ - hid_t h5mem_space_id = -1; /*memory dataspace ID */ - hid_t h5ds_id = -1; /*dataset handle */ - hsize_t h5block[2]; /*dataspace selection */ - hsize_t h5stride[2]; - hsize_t h5count[2]; - hsize_t h5start[2]; - hssize_t h5offset[2]; /* Selection offset within dataspace */ - hid_t h5dxpl = -1; /* Dataset transfer property list */ - - /* Get the parameters from the parameter block */ - blk_size=parms->blk_size; - - /* There are two kinds of transfer patterns, contiguous and interleaved. - * Let 0,1,2,...,n be data accessed by process 0,1,2,...,n - * where n is rank of the last process. - * In contiguous pattern, data are accessed as - * 000...111...222...nnn... - * In interleaved pattern, data are accessed as - * 012...n012...n... - * These are all in the scope of one dataset. - */ - - /* 1D dataspace */ - if (!parms->dim2d){ - bsize = buf_size; - /* Contiguous Pattern: */ - if (!parms->interleaved) { - bytes_begin[0] = (off_t)(((double)nbytes*pio_mpi_rank_g)/pio_mpi_nprocs_g); - } /* end if */ - /* Interleaved Pattern: */ - else { - bytes_begin[0] = (off_t)(blk_size*pio_mpi_rank_g); - } /* end else */ - }/* end if */ - /* 2D dataspace */ - else { - /* nbytes is always the number of bytes per dataset (1D or 2D). If the - dataspace is 2D, snbytes is the size of a side of the 'dataset square'. - */ - snbytes = (off_t)sqrt(nbytes); - - bsize = buf_size * blk_size; - - /* Contiguous Pattern: */ - if (!parms->interleaved) { - bytes_begin[0] = (off_t)((double)snbytes*pio_mpi_rank_g / pio_mpi_nprocs_g); - bytes_begin[1] = 0; - } /* end if */ - /* Interleaved Pattern: */ - else { - bytes_begin[0] = 0; - - if (!parms->h5_use_chunks || parms->io_type==PHDF5) - bytes_begin[1] = (off_t)(blk_size*pio_mpi_rank_g); - else - bytes_begin[1] = (off_t)(blk_size*blk_size*pio_mpi_rank_g); - } /* end else */ - } /* end else */ - - /* Calculate the total number of bytes (bytes_count) to be - * transferred by this process. It may be different for different - * transfer pattern due to rounding to integral values. - */ - /* - * Calculate the beginning bytes of this process and the next. - * bytes_count is the difference between these two beginnings. - * This way, it eliminates any rounding errors. - * (This is tricky, don't mess with the formula, rounding errors - * can easily get introduced) */ - bytes_count = (off_t)(((double)nbytes*(pio_mpi_rank_g+1)) / pio_mpi_nprocs_g) - - (off_t)(((double)nbytes*pio_mpi_rank_g) / pio_mpi_nprocs_g); - - /* debug */ - if (pio_debug_level >= 4) { - HDprint_rank(output); - if (!parms->dim2d) { - HDfprintf(output, "Debug(do_write): " - "buf_size=%zu, bytes_begin=%" H5_PRINTF_LL_WIDTH "d, bytes_count=%" H5_PRINTF_LL_WIDTH "d\n", - buf_size, (long long)bytes_begin[0], - (long long)bytes_count); - } else { - HDfprintf(output, "Debug(do_write): " - "linear buf_size=%zu, bytes_begin=(%" H5_PRINTF_LL_WIDTH "d,%" H5_PRINTF_LL_WIDTH "d), bytes_count=%" H5_PRINTF_LL_WIDTH "d\n", - buf_size*blk_size, (long long)bytes_begin[0], - (long long)bytes_begin[1], (long long)bytes_count); - } - } - - /* I/O Access specific setup */ - switch (parms->io_type) { - case POSIXIO: - /* No extra setup */ - break; - - case MPIO: /* MPI-I/O setup */ - /* 1D dataspace */ - if (!parms->dim2d){ - /* Build block's derived type */ - mrc = MPI_Type_contiguous((int)blk_size, - MPI_BYTE, &mpi_blk_type); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_CREATE"); - - /* Build file's derived type */ - mrc = MPI_Type_vector((int)(buf_size/blk_size), (int)1, - (int)pio_mpi_nprocs_g, mpi_blk_type, &mpi_file_type); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_CREATE"); - - /* Commit file type */ - mrc = MPI_Type_commit( &mpi_file_type ); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_COMMIT"); - - /* Commit buffer type */ - mrc = MPI_Type_commit( &mpi_blk_type ); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_COMMIT"); - } /* end if */ - /* 2D dataspace */ - else { - /* Build partial buffer derived type for contiguous access */ - mrc = MPI_Type_contiguous((int)buf_size, MPI_BYTE, - &mpi_partial_buffer_cont); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_CREATE"); - - /* Commit partial buffer derived type */ - mrc = MPI_Type_commit(&mpi_partial_buffer_cont); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_COMMIT"); - - /* Build contiguous file's derived type */ - mrc = MPI_Type_vector((int)blk_size, (int)1, (int)(snbytes/buf_size), - mpi_partial_buffer_cont, &mpi_cont_type); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_CREATE"); - - /* Commit contiguous file type */ - mrc = MPI_Type_commit(&mpi_cont_type); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_COMMIT"); - - /* Build partial buffer derived type for interleaved access */ - mrc = MPI_Type_contiguous((int)blk_size, MPI_BYTE, - &mpi_partial_buffer_inter); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_CREATE"); - - /* Commit partial buffer derived type */ - mrc = MPI_Type_commit(&mpi_partial_buffer_inter); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_COMMIT"); - - /* Build interleaved file's derived type */ - mrc = MPI_Type_vector((int)buf_size, (int)1, (int)(snbytes/blk_size), - mpi_partial_buffer_inter, &mpi_inter_type); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_CREATE"); - - /* Commit interleaved file type */ - mrc = MPI_Type_commit(&mpi_inter_type); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_COMMIT"); - - /* Build full buffer derived type */ - mrc = MPI_Type_contiguous((int)(blk_size*buf_size), MPI_BYTE, - &mpi_full_buffer); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_CREATE"); - - /* Commit full buffer derived type */ - mrc = MPI_Type_commit(&mpi_full_buffer); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_COMMIT"); - - /* Build full chunk derived type */ - mrc = MPI_Type_contiguous((int)(blk_size*blk_size), MPI_BYTE, - &mpi_full_chunk); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_CREATE"); - - /* Commit full chunk derived type */ - mrc = MPI_Type_commit(&mpi_full_chunk); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_COMMIT"); - - /* Build chunk interleaved file's derived type */ - mrc = MPI_Type_vector((int)(buf_size/blk_size), (int)1, (int)(snbytes/blk_size), - mpi_full_chunk, &mpi_chunk_inter_type); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_CREATE"); - - /* Commit chunk interleaved file type */ - mrc = MPI_Type_commit(&mpi_chunk_inter_type); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_COMMIT"); - } /* end else */ - break; - - case PHDF5: /* HDF5 setup */ - /* 1D dataspace */ - if (!parms->dim2d){ - if(nbytes>0) { - /* define a contiguous dataset of nbytes native bytes */ - h5dims[0] = nbytes; - h5dset_space_id = H5Screate_simple(1, h5dims, NULL); - VRFY((h5dset_space_id >= 0), "H5Screate_simple"); - - /* Set up the file dset space id to select the pattern to access */ - if (!parms->interleaved){ - /* Contiguous pattern */ - h5start[0] = bytes_begin[0]; - h5stride[0] = h5block[0] = blk_size; - h5count[0] = buf_size/blk_size; - } /* end if */ - else { - /* Interleaved access pattern */ - /* Skip offset over blocks of other processes */ - h5start[0] = bytes_begin[0]; - h5stride[0] = blk_size*pio_mpi_nprocs_g; - h5block[0] = blk_size; - h5count[0] = buf_size/blk_size; - } /* end else */ - hrc = H5Sselect_hyperslab(h5dset_space_id, H5S_SELECT_SET, - h5start, h5stride, h5count, h5block); - VRFY((hrc >= 0), "H5Sselect_hyperslab"); - } /* end if */ - else { - h5dset_space_id = H5Screate(H5S_SCALAR); - VRFY((h5dset_space_id >= 0), "H5Screate"); - } /* end else */ - - /* Create the memory dataspace that corresponds to the xfer buffer */ - if(buf_size>0) { - h5dims[0] = buf_size; - h5mem_space_id = H5Screate_simple(1, h5dims, NULL); - VRFY((h5mem_space_id >= 0), "H5Screate_simple"); - } /* end if */ - else { - h5mem_space_id = H5Screate(H5S_SCALAR); - VRFY((h5mem_space_id >= 0), "H5Screate"); - } /* end else */ - } /* end if */ - /* 2D dataspace */ - else { - if(nbytes>0) { - /* define a contiguous dataset of nbytes native bytes */ - h5dims[0] = snbytes; - h5dims[1] = snbytes; - h5dset_space_id = H5Screate_simple(2, h5dims, NULL); - VRFY((h5dset_space_id >= 0), "H5Screate_simple"); - - /* Set up the file dset space id to select the pattern to access */ - if (!parms->interleaved){ - /* Contiguous pattern */ - h5start[0] = bytes_begin[0]; - h5start[1] = bytes_begin[1]; - h5stride[0] = 1; - h5stride[1] = h5block[0] = h5block[1] = blk_size; - h5count[0] = 1; - h5count[1] = buf_size/blk_size; - } /* end if */ - else { - /* Interleaved access pattern */ - /* Skip offset over blocks of other processes */ - h5start[0] = bytes_begin[0]; - h5start[1] = bytes_begin[1]; - h5stride[0] = blk_size; - h5stride[1] = blk_size*pio_mpi_nprocs_g; - h5block[0] = h5block[1] = blk_size; - h5count[0] = buf_size/blk_size; - h5count[1] = 1; - } /* end else */ - hrc = H5Sselect_hyperslab(h5dset_space_id, H5S_SELECT_SET, - h5start, h5stride, h5count, h5block); - VRFY((hrc >= 0), "H5Sselect_hyperslab"); - } /* end if */ - else { - h5dset_space_id = H5Screate(H5S_SCALAR); - VRFY((h5dset_space_id >= 0), "H5Screate"); - } /* end else */ - - /* Create the memory dataspace that corresponds to the xfer buffer */ - if(buf_size>0) { - if (!parms->interleaved){ - h5dims[0] = blk_size; - h5dims[1] = buf_size; - }else{ - h5dims[0] = buf_size; - h5dims[1] = blk_size; - } - h5mem_space_id = H5Screate_simple(2, h5dims, NULL); - VRFY((h5mem_space_id >= 0), "H5Screate_simple"); - } /* end if */ - else { - h5mem_space_id = H5Screate(H5S_SCALAR); - VRFY((h5mem_space_id >= 0), "H5Screate"); - } /* end else */ - } /* end else */ - - /* Create the dataset transfer property list */ - h5dxpl = H5Pcreate(H5P_DATASET_XFER); - if (h5dxpl < 0) { - fprintf(stderr, "HDF5 Property List Create failed\n"); - GOTOERROR(FAIL); - } - - /* Change to collective I/O, if asked */ - if(parms->collective) { - hrc = H5Pset_dxpl_mpio(h5dxpl, H5FD_MPIO_COLLECTIVE); - if (hrc < 0) { - fprintf(stderr, "HDF5 Property List Set failed\n"); - GOTOERROR(FAIL); - } /* end if */ - } /* end if */ - break; - } /* end switch */ - - for (ndset = 1; ndset <= ndsets; ++ndset) { - - /* Calculate dataset offset within a file */ - - /* create dataset */ - switch (parms->io_type) { - case POSIXIO: - case MPIO: - /* both posix and mpi io just need dataset offset in file*/ - dset_offset = (ndset - 1) * nbytes; - break; - - case PHDF5: - sprintf(dname, "Dataset_%ld", ndset); - h5ds_id = H5DOPEN(fd->h5fd, dname); - if (h5ds_id < 0) { - fprintf(stderr, "HDF5 Dataset open failed\n"); - GOTOERROR(FAIL); - } - - break; - } - - /* The task is to transfer bytes_count bytes, starting at - * bytes_begin position, using transfer buffer of buf_size bytes. - * If interleaved, select buf_size at a time, in round robin - * fashion, according to number of process. Otherwise, select - * all bytes_count in contiguous. - */ - nbytes_xfer = 0 ; - - /* 1D dataspace */ - if (!parms->dim2d){ - /* Set base file offset for all I/O patterns and POSIX access */ - posix_file_offset = dset_offset + bytes_begin[0]; - - /* Set base file offset for all I/O patterns and MPI access */ - mpi_file_offset = (MPI_Offset)(dset_offset + bytes_begin[0]); - } /* end if */ - else { - /* Set base file offset for all I/O patterns and POSIX access */ - posix_file_offset=dset_offset + bytes_begin[0]*snbytes+ - bytes_begin[1]; - - /* Set base file offset for all I/O patterns and MPI access */ - mpi_file_offset=(MPI_Offset)(dset_offset + bytes_begin[0]*snbytes+ - bytes_begin[1]); - } /* end else */ - - /* Start "raw data" read timer */ - set_time(res->timers, HDF5_RAW_READ_FIXED_DIMS, TSTART); - - while (nbytes_xfer < bytes_count){ - /* Read */ - /* Calculate offset of read within a dataset/file */ - switch (parms->io_type) { - case POSIXIO: - /* 1D dataspace */ - if (!parms->dim2d){ - /* Contiguous pattern */ - if (!parms->interleaved) { - /* Compute file offset */ - file_offset = posix_file_offset + (off_t)nbytes_xfer; - - /* only care if seek returns error */ - rc = POSIXSEEK(fd->posixfd, file_offset) < 0 ? -1 : 0; - VRFY((rc==0), "POSIXSEEK"); - - /* check if all bytes are read */ - rc = ((ssize_t)buf_size == - POSIXREAD(fd->posixfd, buffer, buf_size)); - VRFY((rc != 0), "POSIXREAD"); - - /* Advance global offset in dataset */ - nbytes_xfer+=buf_size; - } /* end if */ - /* Interleaved access pattern */ - else { - /* Set the base of user's buffer */ - buf_p=(unsigned char *)buffer; - - /* Set the number of bytes to transfer this time */ - nbytes_toxfer = buf_size; - - /* Loop over the buffers to read */ - while(nbytes_toxfer>0) { - /* Skip offset over blocks of other processes */ - file_offset = posix_file_offset + - (off_t)(nbytes_xfer*pio_mpi_nprocs_g); - - /* only care if seek returns error */ - rc = POSIXSEEK(fd->posixfd, file_offset) < 0 ? -1 : 0; - VRFY((rc==0), "POSIXSEEK"); - - /* check if all bytes are read */ - rc = ((ssize_t)blk_size == - POSIXREAD(fd->posixfd, buf_p, blk_size)); - VRFY((rc != 0), "POSIXREAD"); - - /* Advance location in buffer */ - buf_p+=blk_size; - - /* Advance global offset in dataset */ - nbytes_xfer+=blk_size; - - /* Decrement number of bytes left this time */ - nbytes_toxfer-=blk_size; - } /* end while */ - } /* end else */ - } /* end if */ - /* 2D dataspace */ - else { - /* Contiguous storage */ - if (!parms->h5_use_chunks) { - /* Contiguous access pattern */ - if (!parms->interleaved) { - /* Compute file offset */ - file_offset=posix_file_offset+(off_t)(((nbytes_xfer/blk_size) - /snbytes)*(blk_size*snbytes)+((nbytes_xfer/blk_size)%snbytes)); - - /* Number of bytes to be transferred per I/O operation */ - nbytes_xfer_advance = buf_size; - - /* Global offset advance after each I/O operation */ - file_offset_advance = (off_t)snbytes; - } /* end if */ - /* Interleaved access pattern */ - else { - /* Compute file offset */ - file_offset=posix_file_offset+(off_t)((((nbytes_xfer/buf_size) - *pio_mpi_nprocs_g)/snbytes)*(buf_size*snbytes) - +((nbytes_xfer/buf_size)*pio_mpi_nprocs_g)%snbytes); - - /* Number of bytes to be transferred per I/O operation */ - nbytes_xfer_advance = blk_size; - - /* Global offset advance after each I/O operation */ - file_offset_advance = (off_t)snbytes; - } /* end else */ - } /* end if */ - /* Chunked storage */ - else { - /*Contiguous access pattern */ - if (!parms->interleaved) { - /* Compute file offset */ - file_offset=posix_file_offset+(off_t)nbytes_xfer; - - /* Number of bytes to be transferred per I/O operation */ - nbytes_xfer_advance = blk_size * buf_size; - - /* Global offset advance after each I/O operation */ - file_offset_advance = 0; - } /* end if */ - /*Interleaved access pattern */ - else { - /* Compute file offset */ - /* Before simplification */ - /* file_offset=posix_file_offset+(off_t)((nbytes_xfer/(buf_size/blk_size) - *pio_mpi_nprocs_g)/(snbytes/blk_size*(blk_size*blk_size))*(buf_size/blk_size - *snbytes/blk_size*(blk_size*blk_size))+((nbytes_xfer/(buf_size/blk_size)) - *pio_mpi_nprocs_g)%(snbytes/blk_size*(blk_size*blk_size))); */ - - file_offset=posix_file_offset+(off_t)(((nbytes_xfer/(buf_size/blk_size) - *pio_mpi_nprocs_g)/(snbytes*blk_size))*(buf_size*snbytes)+((nbytes_xfer/(buf_size/blk_size)) - *pio_mpi_nprocs_g)%(snbytes*blk_size)); - - /* Number of bytes to be transferred per I/O operation */ - nbytes_xfer_advance = blk_size * blk_size; - - /* Global offset advance after each I/O operation */ - /* file_offset_advance = (off_t)(snbytes/blk_size*(blk_size*blk_size)); */ - file_offset_advance = (off_t)(snbytes*blk_size); - } /* end else */ - } /* end else */ - - /* Common code for file access */ - - /* Set the base of user's buffer */ - buf_p = (unsigned char *)buffer; - - /* Set the number of bytes to transfer this time */ - nbytes_toxfer = buf_size*blk_size; - - /* Loop over portions of the buffer to read */ - while(nbytes_toxfer>0){ - /* only care if seek returns error */ - rc = POSIXSEEK(fd->posixfd, file_offset) < 0 ? -1 : 0; - VRFY((rc==0), "POSIXSEEK"); - - /* check if all bytes are read */ - rc = ((ssize_t)nbytes_xfer_advance == - POSIXREAD(fd->posixfd, buf_p, nbytes_xfer_advance)); - VRFY((rc != 0), "POSIXREAD"); - - /* Advance location in buffer */ - buf_p+=nbytes_xfer_advance; - - /* Advance global offset in dataset */ - nbytes_xfer+=nbytes_xfer_advance; - - /* Decrement number of bytes left this time */ - nbytes_toxfer-=nbytes_xfer_advance; - - /* Partially advance file offset */ - file_offset+=file_offset_advance; - } /* end while */ - - } /* end else */ - break; - - case MPIO: - /* 1D dataspace */ - if (!parms->dim2d){ - /* Independent file access */ - if(!parms->collective) { - /* Contiguous pattern */ - if (!parms->interleaved){ - /* Compute offset in file */ - mpi_offset = mpi_file_offset + - nbytes_xfer; - - /* Perform independent read */ - mrc = MPI_File_read_at(fd->mpifd, mpi_offset, buffer, - (int)(buf_size/blk_size), mpi_blk_type, - &mpi_status); - VRFY((mrc==MPI_SUCCESS), "MPIO_READ"); - - /* Advance global offset in dataset */ - nbytes_xfer+=buf_size; - } /* end if */ - /* Interleaved access pattern */ - else { - /* Set the base of user's buffer */ - buf_p=(unsigned char *)buffer; - - /* Set the number of bytes to transfer this time */ - nbytes_toxfer = buf_size; - - /* Loop over the buffers to read */ - while(nbytes_toxfer>0) { - /* Skip offset over blocks of other processes */ - mpi_offset = mpi_file_offset + - (nbytes_xfer*pio_mpi_nprocs_g); - - /* Perform independent read */ - mrc = MPI_File_read_at(fd->mpifd, mpi_offset, buf_p, - (int)1, mpi_blk_type, &mpi_status); - VRFY((mrc==MPI_SUCCESS), "MPIO_READ"); - - /* Advance location in buffer */ - buf_p+=blk_size; - - /* Advance global offset in dataset */ - nbytes_xfer+=blk_size; - - /* Decrement number of bytes left this time */ - nbytes_toxfer-=blk_size; - } /* end while */ - } /* end else */ - } /* end if */ - /* Collective file access */ - else { - /* Contiguous access pattern */ - if (!parms->interleaved){ - /* Compute offset in file */ - mpi_offset = mpi_file_offset + - nbytes_xfer; - - /* Perform collective read */ - mrc = MPI_File_read_at_all(fd->mpifd, mpi_offset, buffer, - (int)(buf_size/blk_size), mpi_blk_type, &mpi_status); - VRFY((mrc==MPI_SUCCESS), "MPIO_READ"); - - /* Advance global offset in dataset */ - nbytes_xfer+=buf_size; - } /* end if */ - /* Interleaved access pattern */ - else { - /* Compute offset in file */ - mpi_offset = mpi_file_offset + - (nbytes_xfer*pio_mpi_nprocs_g); - - /* Set the file view */ - mrc = MPI_File_set_view(fd->mpifd, mpi_offset, mpi_blk_type, - mpi_file_type, (char*)"native", h5_io_info_g); - VRFY((mrc==MPI_SUCCESS), "MPIO_VIEW"); - - /* Perform collective read */ - mrc = MPI_File_read_at_all(fd->mpifd, 0, buffer, - (int)(buf_size/blk_size), mpi_blk_type, &mpi_status); - VRFY((mrc==MPI_SUCCESS), "MPIO_READ"); - - /* Advance global offset in dataset */ - nbytes_xfer+=buf_size; - } /* end else */ - } /* end else */ - } /* end if */ - /* 2D dataspace */ - else { - /* Contiguous storage */ - if (!parms->h5_use_chunks) { - /* Contiguous access pattern */ - if (!parms->interleaved) { - /* Compute offset in file */ - mpi_offset=mpi_file_offset+((nbytes_xfer/blk_size)/snbytes)* - (blk_size*snbytes)+((nbytes_xfer/blk_size)%snbytes); - - /* Number of bytes to be transferred per I/O operation */ - nbytes_xfer_advance = buf_size; - - /* Global offset advance after each I/O operation */ - mpi_offset_advance = snbytes; - - /* MPI type to be used for collective access */ - mpi_collective_type = mpi_cont_type; - } /* end if */ - /* Interleaved access pattern */ - else { - /* Compute offset in file */ - mpi_offset=mpi_file_offset+(((nbytes_xfer/buf_size)*pio_mpi_nprocs_g)/snbytes)* - (buf_size*snbytes)+((nbytes_xfer/buf_size)*pio_mpi_nprocs_g)%snbytes; - - /* Number of bytes to be transferred per I/O operation */ - nbytes_xfer_advance = blk_size; - - /* Global offset advance after each I/O operation */ - mpi_offset_advance = snbytes; - - /* MPI type to be used for collective access */ - mpi_collective_type = mpi_inter_type; - } /* end else */ - } /* end if */ - /* Chunked storage */ - else { - /*Contiguous access pattern */ - if (!parms->interleaved) { - /* Compute offset in file */ - mpi_offset=mpi_file_offset+nbytes_xfer; - - /* Number of bytes to be transferred per I/O operation */ - nbytes_xfer_advance = blk_size * buf_size; - - /* Global offset advance after each I/O operation */ - mpi_offset_advance = 0; - - /* MPI type to be used for collective access */ - mpi_collective_type = mpi_full_buffer; - } /* end if */ - /*Interleaved access pattern */ - else { - /* Compute offset in file */ - /* Before simplification */ - /* mpi_offset=mpi_file_offset+(nbytes_xfer/(buf_size/blk_size) - *pio_mpi_nprocs_g)/(snbytes/blk_size*(blk_size*blk_size))* - (buf_size/blk_size*snbytes/blk_size*(blk_size*blk_size))+ - ((nbytes_xfer/(buf_size/blk_size))*pio_mpi_nprocs_g)%(snbytes - /blk_size*(blk_size*blk_size)); */ - mpi_offset=mpi_file_offset+((nbytes_xfer/(buf_size/blk_size) - *pio_mpi_nprocs_g)/(snbytes*blk_size))*(buf_size*snbytes) - +((nbytes_xfer/(buf_size/blk_size))*pio_mpi_nprocs_g)%(snbytes*blk_size); - - /* Number of bytes to be transferred per I/O operation */ - nbytes_xfer_advance = blk_size * blk_size; - - /* Global offset advance after each I/O operation */ - /* mpi_offset_advance = (MPI_Offset)(snbytes/blk_size*(blk_size*blk_size)); */ - mpi_offset_advance = (MPI_Offset)(snbytes*blk_size); - - /* MPI type to be used for collective access */ - mpi_collective_type = mpi_chunk_inter_type; - } /* end else */ - } /* end else */ - - /* Common code for independent file access */ - if (!parms->collective) { - /* Set the base of user's buffer */ - buf_p = (unsigned char *)buffer; - - /* Set the number of bytes to transfer this time */ - nbytes_toxfer = buf_size * blk_size; - - /* Loop over portions of the buffer to read */ - while(nbytes_toxfer>0){ - /* Perform independent read */ - mrc = MPI_File_read_at(fd->mpifd, mpi_offset, buf_p, - (int)nbytes_xfer_advance, MPI_BYTE, &mpi_status); - VRFY((mrc==MPI_SUCCESS), "MPIO_READ"); - - /* Advance location in buffer */ - buf_p+=nbytes_xfer_advance; - - /* Advance global offset in dataset */ - nbytes_xfer+=nbytes_xfer_advance; - - /* Decrement number of bytes left this time */ - nbytes_toxfer-=nbytes_xfer_advance; - - /* Partially advance global offset in dataset */ - mpi_offset+=mpi_offset_advance; - } /* end while */ - } /* end if */ - - /* Common code for collective file access */ - else { - /* Set the file view */ - mrc = MPI_File_set_view(fd->mpifd, mpi_offset, MPI_BYTE, - mpi_collective_type, (char *)"native", h5_io_info_g); - VRFY((mrc==MPI_SUCCESS), "MPIO_VIEW"); - - /* Perform read */ - MPI_File_read_at_all(fd->mpifd, 0, buffer,(int)(buf_size*blk_size), - MPI_BYTE, &mpi_status); - VRFY((mrc==MPI_SUCCESS), "MPIO_READ"); - - /* Advance global offset in dataset */ - nbytes_xfer+=buf_size*blk_size; - } /* end else */ - - } /* end else */ - break; - - case PHDF5: - /* 1D dataspace */ - if (!parms->dim2d){ - /* Set up the file dset space id to move the selection to process */ - if (!parms->interleaved){ - /* Contiguous pattern */ - h5offset[0] = nbytes_xfer; - } /* end if */ - else { - /* Interleaved access pattern */ - /* Skip offset over blocks of other processes */ - h5offset[0] = (nbytes_xfer*pio_mpi_nprocs_g); - } /* end else */ - hrc = H5Soffset_simple(h5dset_space_id, h5offset); - VRFY((hrc >= 0), "H5Soffset_simple"); - - /* Read the buffer in */ - hrc = H5Dread(h5ds_id, ELMT_H5_TYPE, h5mem_space_id, - h5dset_space_id, h5dxpl, buffer); - VRFY((hrc >= 0), "H5Dread"); - - /* Increment number of bytes transferred */ - nbytes_xfer += buf_size; - } /* end if */ - /* 2D dataspace */ - else { - /* Set up the file dset space id to move the selection to process */ - if (!parms->interleaved){ - /* Contiguous pattern */ - h5offset[0] = (nbytes_xfer/(snbytes*blk_size))*blk_size; - h5offset[1] = (nbytes_xfer%(snbytes*blk_size))/blk_size; - } /* end if */ - else { - /* Interleaved access pattern */ - /* Skip offset over blocks of other processes */ - h5offset[0] = ((nbytes_xfer*pio_mpi_nprocs_g)/(snbytes*buf_size))*buf_size; - h5offset[1] = ((nbytes_xfer*pio_mpi_nprocs_g)%(snbytes*buf_size))/buf_size; - - } /* end else */ - hrc = H5Soffset_simple(h5dset_space_id, h5offset); - VRFY((hrc >= 0), "H5Soffset_simple"); - - /* Write the buffer out */ - hrc = H5Dread(h5ds_id, ELMT_H5_TYPE, h5mem_space_id, - h5dset_space_id, h5dxpl, buffer); - VRFY((hrc >= 0), "H5Dread"); - - /* Increment number of bytes transferred */ - nbytes_xfer += buf_size*blk_size; - - } /* end else */ - break; - } /* switch (parms->io_type) */ - - /* Verify raw data, if asked */ - if (parms->verify) { - /* Verify data read */ - unsigned char *ucharptr = (unsigned char *)buffer; - size_t i; - int nerror=0; - - for (i = 0; i < bsize; ++i){ - if (*ucharptr++ != pio_mpi_rank_g+1) { - if (++nerror < 20){ - /* report at most 20 errors */ - HDprint_rank(output); - HDfprintf(output, "read data error, expected (%d), " - "got (%d)\n", - pio_mpi_rank_g+1, - (int)*(ucharptr-1)); - } /* end if */ - } /* end if */ - } /* end for */ - if (nerror >= 20) { - HDprint_rank(output); - HDfprintf(output, "..."); - HDfprintf(output, "total read data errors=%d\n", - nerror); - } /* end if */ - } /* if (parms->verify) */ - - } /* end while */ - - /* Stop "raw data" read timer */ - set_time(res->timers, HDF5_RAW_READ_FIXED_DIMS, TSTOP); - - /* Calculate read time */ - - /* Close dataset. Only HDF5 needs to do an explicit close. */ - if (parms->io_type == PHDF5) { - hrc = H5Dclose(h5ds_id); - - if (hrc < 0) { - fprintf(stderr, "HDF5 Dataset Close failed\n"); - GOTOERROR(FAIL); - } - - h5ds_id = -1; - } /* end if */ - } /* end for */ - -done: - /* release MPI-I/O objects */ - if (parms->io_type == MPIO) { - /* 1D dataspace */ - if (!parms->dim2d){ - /* Free file type */ - mrc = MPI_Type_free( &mpi_file_type ); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_FREE"); - - /* Free buffer type */ - mrc = MPI_Type_free( &mpi_blk_type ); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_FREE"); - } /* end if */ - /* 2D dataspace */ - else { - /* Free partial buffer type for contiguous access */ - mrc = MPI_Type_free( &mpi_partial_buffer_cont ); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_FREE"); - - /* Free contiguous file type */ - mrc = MPI_Type_free( &mpi_cont_type ); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_FREE"); - - /* Free partial buffer type for interleaved access */ - mrc = MPI_Type_free( &mpi_partial_buffer_inter ); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_FREE"); - - /* Free interleaved file type */ - mrc = MPI_Type_free( &mpi_inter_type ); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_FREE"); - - /* Free full buffer type */ - mrc = MPI_Type_free(&mpi_full_buffer); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_FREE"); - - /* Free full chunk type */ - mrc = MPI_Type_free(&mpi_full_chunk); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_FREE"); - - /* Free chunk interleaved file type */ - mrc = MPI_Type_free(&mpi_chunk_inter_type); - VRFY((mrc==MPI_SUCCESS), "MPIO_TYPE_FREE"); - } /* end else */ - } /* end if */ - - /* release HDF5 objects */ - if (h5dset_space_id != -1) { - hrc = H5Sclose(h5dset_space_id); - if (hrc < 0){ - fprintf(stderr, "HDF5 Dataset Space Close failed\n"); - ret_code = FAIL; - } else { - h5dset_space_id = -1; - } - } - - if (h5mem_space_id != -1) { - hrc = H5Sclose(h5mem_space_id); - if (hrc < 0) { - fprintf(stderr, "HDF5 Memory Space Close failed\n"); - ret_code = FAIL; - } else { - h5mem_space_id = -1; - } - } - - if (h5dxpl != -1) { - hrc = H5Pclose(h5dxpl); - if (hrc < 0) { - fprintf(stderr, "HDF5 Dataset Transfer Property List Close failed\n"); - ret_code = FAIL; - } else { - h5dxpl = -1; - } - } - - return ret_code; -} - -/* - * Function: do_fopen - * Purpose: Open the specified file. - * Return: SUCCESS or FAIL - * Programmer: Albert Cheng, Bill Wendling, 2001/12/13 - * Modifications: - */ - static herr_t -do_fopen(parameters *param, char *fname, file_descr *fd /*out*/, int flags) -{ - int ret_code = SUCCESS, mrc; - hid_t acc_tpl = -1; /* file access templates */ - - switch (param->io_type) { - case POSIXIO: - if (flags & (PIO_CREATE | PIO_WRITE)) - fd->posixfd = POSIXCREATE(fname); - else - fd->posixfd = POSIXOPEN(fname, O_RDONLY); - - if (fd->posixfd < 0 ) { - fprintf(stderr, "POSIX File Open failed(%s)\n", fname); - GOTOERROR(FAIL); - } - - - /* The perils of POSIX I/O in a parallel environment. The problem is: - * - * - Process n opens a file with truncation and then starts - * writing to the file. - * - Process m also opens the file with truncation, but after - * process n has already started to write to the file. Thus, - * all of the stuff process n wrote is now lost. - */ - MPI_Barrier(pio_comm_g); - - break; - - case MPIO: - if (flags & (PIO_CREATE | PIO_WRITE)) { - MPI_File_delete(fname, h5_io_info_g); - mrc = MPI_File_open(pio_comm_g, fname, MPI_MODE_CREATE | MPI_MODE_RDWR, - h5_io_info_g, &fd->mpifd); - - if (mrc != MPI_SUCCESS) { - fprintf(stderr, "MPI File Open failed(%s)\n", fname); - GOTOERROR(FAIL); - } - - /*since MPI_File_open with MPI_MODE_CREATE does not truncate */ - /*filesize , set size to 0 explicitedly. */ - mrc = MPI_File_set_size(fd->mpifd, (MPI_Offset)0); - if (mrc != MPI_SUCCESS) { - fprintf(stderr, "MPI_File_set_size failed\n"); - GOTOERROR(FAIL); - } - } else { - mrc = MPI_File_open(pio_comm_g, fname, MPI_MODE_RDONLY, h5_io_info_g, &fd->mpifd); - if (mrc != MPI_SUCCESS) { - fprintf(stderr, "MPI File Open failed(%s)\n", fname); - GOTOERROR(FAIL); - } - } - - break; - - case PHDF5: - if ((acc_tpl = H5Pcreate(H5P_FILE_ACCESS)) < 0) { - fprintf(stderr, "HDF5 Property List Create failed\n"); - GOTOERROR(FAIL); - } - - /* Set the file driver to the MPI-IO driver */ - if (H5Pset_fapl_mpio(acc_tpl, pio_comm_g, h5_io_info_g) < 0) { - fprintf(stderr, "HDF5 Property List Set failed\n"); - GOTOERROR(FAIL); - } - - /* Set the alignment of objects in HDF5 file */ - if (H5Pset_alignment(acc_tpl, param->h5_thresh, param->h5_align) < 0) { - fprintf(stderr, "HDF5 Property List Set failed\n"); - GOTOERROR(FAIL); - } - - /* create the parallel file */ - if (flags & (PIO_CREATE | PIO_WRITE)) - fd->h5fd = H5Fcreate(fname, H5F_ACC_TRUNC, H5P_DEFAULT, acc_tpl); - else - fd->h5fd = H5Fopen(fname, H5F_ACC_RDONLY, acc_tpl); - if (fd->h5fd < 0) { - fprintf(stderr, "HDF5 File Create failed(%s)\n", fname); - GOTOERROR(FAIL); - } - - /* verifying the close of the acc_tpl */ - if (H5Pclose(acc_tpl) < 0) { - fprintf(stderr, "HDF5 Property List Close failed\n"); - GOTOERROR(FAIL); - } - - break; - } - -done: - return ret_code; -} - -/* - * Function: do_fclose - * Purpose: Close the specified file descriptor. - * Return: SUCCESS or FAIL - * Programmer: Albert Cheng, Bill Wendling, 2001/12/13 - * Modifications: - */ - static herr_t -do_fclose(iotype iot, file_descr *fd /*out*/) -{ - herr_t ret_code = SUCCESS, hrc; - int mrc = 0, rc = 0; - - switch (iot) { - case POSIXIO: - rc = POSIXCLOSE(fd->posixfd); - - if (rc != 0){ - fprintf(stderr, "POSIX File Close failed\n"); - GOTOERROR(FAIL); - } - - fd->posixfd = -1; - break; - - case MPIO: - mrc = MPI_File_close(&fd->mpifd); - - if (mrc != MPI_SUCCESS){ - fprintf(stderr, "MPI File close failed\n"); - GOTOERROR(FAIL); - } - - fd->mpifd = MPI_FILE_NULL; - break; - - case PHDF5: - hrc = H5Fclose(fd->h5fd); - - if (hrc < 0) { - fprintf(stderr, "HDF5 File Close failed\n"); - GOTOERROR(FAIL); - } - - fd->h5fd = -1; - break; - } - -done: - return ret_code; -} - - -/* - * Function: do_fclose - * Purpose: Cleanup temporary file unless HDF5_NOCLEANUP is set. - * Only Proc 0 of the PIO communicator will do the cleanup. - * Other processes just return. - * Return: void - * Programmer: Albert Cheng 2001/12/12 - * Modifications: - */ - static void -do_cleanupfile(iotype iot, char *fname) -{ - if (pio_mpi_rank_g != 0) - return; - - if (clean_file_g == -1) - clean_file_g = (getenv("HDF5_NOCLEANUP")==NULL) ? 1 : 0; - - if (clean_file_g){ - switch (iot){ - case POSIXIO: - remove(fname); - break; - case MPIO: - case PHDF5: - MPI_File_delete(fname, h5_io_info_g); - break; - } - } -} - -#ifdef TIME_MPI -/* instrument the MPI_File_wrirte_xxx and read_xxx calls to measure - * pure time spent in MPI_File code. - */ -int MPI_File_read_at(MPI_File fh, MPI_Offset offset, void *buf, - int count, MPI_Datatype datatype, MPI_Status *status) -{ - int err; - set_time(timer_g, HDF5_MPI_READ, TSTART); - err=PMPI_File_read_at(fh, offset, buf, count, datatype, status); - set_time(timer_g, HDF5_MPI_READ, TSTOP); - return err; -} - - -int MPI_File_read_at_all(MPI_File fh, MPI_Offset offset, void *buf, - int count, MPI_Datatype datatype, MPI_Status *status) -{ - int err; - set_time(timer_g, HDF5_MPI_READ, TSTART); - err=PMPI_File_read_at_all(fh, offset, buf, count, datatype, status); - set_time(timer_g, HDF5_MPI_READ, TSTOP); - return err; -} - -int MPI_File_write_at(MPI_File fh, MPI_Offset offset, void *buf, - int count, MPI_Datatype datatype, MPI_Status *status) -{ - int err; - set_time(timer_g, HDF5_MPI_WRITE, TSTART); - err=PMPI_File_write_at(fh, offset, buf, count, datatype, status); - set_time(timer_g, HDF5_MPI_WRITE, TSTOP); - return err; -} - -int MPI_File_write_at_all(MPI_File fh, MPI_Offset offset, void *buf, - int count, MPI_Datatype datatype, MPI_Status *status) -{ - int err; - set_time(timer_g, HDF5_MPI_WRITE, TSTART); - err=PMPI_File_write_at_all(fh, offset, buf, count, datatype, status); - set_time(timer_g, HDF5_MPI_WRITE, TSTOP); - return err; -} - -#endif /* TIME_MPI */ -#endif /* H5_HAVE_PARALLEL */ - - - - - |