summaryrefslogtreecommitdiffstats
path: root/perform/sio_perf.c
diff options
context:
space:
mode:
authorScot Breitenfeld <brtnfld@hdfgroup.org>2008-04-30 19:23:26 (GMT)
committerScot Breitenfeld <brtnfld@hdfgroup.org>2008-04-30 19:23:26 (GMT)
commit5773fd34bc5adf59b4530d95ac9f0c0585902803 (patch)
tree456ad239799382e1f083fb7fc74399e43b471912 /perform/sio_perf.c
parent0138995d1ce2068db1f790503435a2121132d3ad (diff)
downloadhdf5-5773fd34bc5adf59b4530d95ac9f0c0585902803.zip
hdf5-5773fd34bc5adf59b4530d95ac9f0c0585902803.tar.gz
hdf5-5773fd34bc5adf59b4530d95ac9f0c0585902803.tar.bz2
[svn-r14902] Merged fortran_1_8 branch changes r14505:14901 into the trunk. New fortran wrappers added.
Diffstat (limited to 'perform/sio_perf.c')
-rw-r--r--perform/sio_perf.c1446
1 files changed, 0 insertions, 1446 deletions
diff --git a/perform/sio_perf.c b/perform/sio_perf.c
deleted file mode 100644
index 9e5ed23..0000000
--- a/perform/sio_perf.c
+++ /dev/null
@@ -1,1446 +0,0 @@
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
- * 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://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
- * access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-/*
- * Serial HDF5 Performance Testing Code
- * --------------------------------------
- *
- * Portable code to test performance on the different platforms we support.
- * This is what the report should look like:
- *
- * nprocs = Max#Procs
- * IO API = POSIXIO
- * # Files = 1, # of dsets = 1000, Elements per dset = 37000
- * Write Results = x MB/s
- * Read Results = x MB/s
- * # Files = 1, # of dsets = 3000, Elements per dset = 37000
- * Write Results = x MB/s
- * Read Results = x MB/s
- *
- * . . .
- *
- *
- * IO API = HDF5
- * # Files = 1, # of dsets = 1000, Elements per dset = 37000
- * Write Results = x MB/s
- * Read Results = x MB/s
- * # Files = 1, # of dsets = 3000, Elements per dset = 37000
- * Write Results = x MB/s
- * Read Results = x MB/s
- *
- * . . .
- *
- *
- * . . .
- *
- */
-
-/* system header files */
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "hdf5.h"
-
-
-/* our header files */
-#include "sio_perf.h"
-
-/* useful macros */
-#define TAB_SPACE 4
-
-#define ONE_KB 1024
-#define ONE_MB (ONE_KB * ONE_KB)
-#define ONE_GB (ONE_MB * ONE_KB)
-
-#define SIO_POSIX 0x1
-#define SIO_HDF5 0x4
-
-/* report 0.0 in case t is zero too */
-#define MB_PER_SEC(bytes,t) (((t)==0.0) ? 0.0 : ((((double)bytes) / ONE_MB) / (t)))
-
-#ifndef TRUE
-#define TRUE 1
-#endif /* TRUE */
-#ifndef FALSE
-#define FALSE (!TRUE)
-#endif /* FALSE */
-
-/* global variables */
-FILE *output; /* output file */
-int sio_debug_level = 0;/* The debug level:
- * 0 - Off
- * 1 - Minimal
- * 2 - Some more
- * 3 - Maximal
- * 4 - Maximal & then some
- */
-
-/* local variables */
-static const char *progname = "h5perf_serial";
-
-/*
- * Command-line options: The user can specify short or long-named
- * parameters. The long-named ones can be partially spelled. When
- * adding more, make sure that they don't clash with each other.
- */
-
-/*
- * It seems that only the options that accept additional information
- * such as dataset size (-e) require the colon next to it.
- */
-#if 1
-static const char *s_opts = "a:A:B:c:Cd:D:e:F:ghi:Imno:p:P:r:stT:v:wx:X:";
-#else
-static const char *s_opts = "a:A:bB:c:Cd:D:e:F:ghi:Imno:p:P:r:stT:wx:X:";
-#endif /* 1 */
-static struct long_options l_opts[] = {
- { "align", require_arg, 'a' },
- { "alig", require_arg, 'a' },
- { "ali", require_arg, 'a' },
- { "al", require_arg, 'a' },
- { "api", require_arg, 'A' },
- { "ap", require_arg, 'A' },
-#if 0
- /* a sighting of the elusive binary option */
- { "binary", no_arg, 'b' },
- { "binar", no_arg, 'b' },
- { "bina", no_arg, 'b' },
- { "bin", no_arg, 'b' },
- { "bi", no_arg, 'b' },
-#endif /* 0 */
- { "block-size", require_arg, 'B' },
- { "block-siz", require_arg, 'B' },
- { "block-si", require_arg, 'B' },
- { "block-s", require_arg, 'B' },
- { "block-", require_arg, 'B' },
- { "block", require_arg, 'B' },
- { "bloc", require_arg, 'B' },
- { "blo", require_arg, 'B' },
- { "bl", require_arg, 'B' },
- { "chunk", no_arg, 'c' },
- { "chun", no_arg, 'c' },
- { "chu", no_arg, 'c' },
- { "ch", no_arg, 'c' },
- { "collective", no_arg, 'C' },
- { "collectiv", no_arg, 'C' },
- { "collecti", no_arg, 'C' },
- { "collect", no_arg, 'C' },
- { "collec", no_arg, 'C' },
- { "colle", no_arg, 'C' },
- { "coll", no_arg, 'C' },
- { "col", no_arg, 'C' },
- { "co", no_arg, 'C' },
- { "debug", require_arg, 'D' },
- { "debu", require_arg, 'D' },
- { "deb", require_arg, 'D' },
- { "de", require_arg, 'D' },
- { "file-driver", require_arg, 'v' },
- { "file-drive", require_arg, 'v' },
- { "file-driv", require_arg, 'v' },
- { "file-dri", require_arg, 'v' },
- { "file-dr", require_arg, 'v' },
- { "file-d", require_arg, 'v' },
- { "file-", require_arg, 'v' },
- { "file", require_arg, 'v' },
- { "fil", require_arg, 'v' },
- { "fi", require_arg, 'v' },
- { "geometry", no_arg, 'g' },
- { "geometr", no_arg, 'g' },
- { "geomet", no_arg, 'g' },
- { "geome", no_arg, 'g' },
- { "geom", no_arg, 'g' },
- { "geo", no_arg, 'g' },
- { "ge", no_arg, 'g' },
- { "help", no_arg, 'h' },
- { "hel", no_arg, 'h' },
- { "he", no_arg, 'h' },
- { "interleaved", require_arg, 'I' },
- { "interleave", require_arg, 'I' },
- { "interleav", require_arg, 'I' },
- { "interlea", require_arg, 'I' },
- { "interle", require_arg, 'I' },
- { "interl", require_arg, 'I' },
- { "inter", require_arg, 'I' },
- { "inte", require_arg, 'I' },
- { "int", require_arg, 'I' },
- { "in", require_arg, 'I' },
- { "max-num-processes", require_arg, 'P' },
- { "max-num-processe", require_arg, 'P' },
- { "max-num-process", require_arg, 'P' },
- { "max-num-proces", require_arg, 'P' },
- { "max-num-proce", require_arg, 'P' },
- { "max-num-proc", require_arg, 'P' },
- { "max-num-pro", require_arg, 'P' },
- { "max-num-pr", require_arg, 'P' },
- { "max-num-p", require_arg, 'P' },
- { "min-num-processes", require_arg, 'p' },
- { "min-num-processe", require_arg, 'p' },
- { "min-num-process", require_arg, 'p' },
- { "min-num-proces", require_arg, 'p' },
- { "min-num-proce", require_arg, 'p' },
- { "min-num-proc", require_arg, 'p' },
- { "min-num-pro", require_arg, 'p' },
- { "min-num-pr", require_arg, 'p' },
- { "min-num-p", require_arg, 'p' },
- { "max-xfer-size", require_arg, 'X' },
- { "max-xfer-siz", require_arg, 'X' },
- { "max-xfer-si", require_arg, 'X' },
- { "max-xfer-s", require_arg, 'X' },
- { "max-xfer", require_arg, 'X' },
- { "max-xfe", require_arg, 'X' },
- { "max-xf", require_arg, 'X' },
- { "max-x", require_arg, 'X' },
- { "min-xfer-size", require_arg, 'x' },
- { "min-xfer-siz", require_arg, 'x' },
- { "min-xfer-si", require_arg, 'x' },
- { "min-xfer-s", require_arg, 'x' },
- { "min-xfer", require_arg, 'x' },
- { "min-xfe", require_arg, 'x' },
- { "min-xf", require_arg, 'x' },
- { "min-x", require_arg, 'x' },
- { "mpi-posix", no_arg, 'm' },
- { "mpi-posi", no_arg, 'm' },
- { "mpi-pos", no_arg, 'm' },
- { "mpi-po", no_arg, 'm' },
- { "mpi-p", no_arg, 'm' },
- { "mpi-", no_arg, 'm' },
- { "mpi", no_arg, 'm' },
- { "mp", no_arg, 'm' },
- { "num-bytes", require_arg, 'e' },
- { "num-byte", require_arg, 'e' },
- { "num-byt", require_arg, 'e' },
- { "num-by", require_arg, 'e' },
- { "num-b", require_arg, 'e' },
- { "num-dsets", require_arg, 'd' },
- { "num-dset", require_arg, 'd' },
- { "num-dse", require_arg, 'd' },
- { "num-ds", require_arg, 'd' },
- { "num-d", require_arg, 'd' },
- { "num-files", require_arg, 'F' },
- { "num-file", require_arg, 'F' },
- { "num-fil", require_arg, 'F' },
- { "num-fi", require_arg, 'F' },
- { "num-f", require_arg, 'F' },
- { "num-iterations", require_arg, 'i' },
- { "num-iteration", require_arg, 'i' },
- { "num-iteratio", require_arg, 'i' },
- { "num-iterati", require_arg, 'i' },
- { "num-iterat", require_arg, 'i' },
- { "num-itera", require_arg, 'i' },
- { "num-iter", require_arg, 'i' },
- { "num-ite", require_arg, 'i' },
- { "num-it", require_arg, 'i' },
- { "num-i", require_arg, 'i' },
- { "order", require_arg, 'r' },
- { "orde", require_arg, 'r' },
- { "ord", require_arg, 'r' },
- { "or", require_arg, 'r' },
- { "output", require_arg, 'o' },
- { "outpu", require_arg, 'o' },
- { "outp", require_arg, 'o' },
- { "out", require_arg, 'o' },
- { "ou", require_arg, 'o' },
- { "extendable", no_arg, 't' },
- { "extendabl", no_arg, 't' },
- { "extendab", no_arg, 't' },
- { "extenda", no_arg, 't' },
- { "extend", no_arg, 't' },
- { "exten", no_arg, 't' },
- { "exte", no_arg, 't' },
- { "ext", no_arg, 't' },
- { "ex", no_arg, 't' },
- { "threshold", require_arg, 'T' },
- { "threshol", require_arg, 'T' },
- { "thresho", require_arg, 'T' },
- { "thresh", require_arg, 'T' },
- { "thres", require_arg, 'T' },
- { "thre", require_arg, 'T' },
- { "thr", require_arg, 'T' },
- { "th", require_arg, 'T' },
- { "write-only", require_arg, 'w' },
- { "write-onl", require_arg, 'w' },
- { "write-on", require_arg, 'w' },
- { "write-o", require_arg, 'w' },
- { "write", require_arg, 'w' },
- { "writ", require_arg, 'w' },
- { "wri", require_arg, 'w' },
- { "wr", require_arg, 'w' },
- { NULL, 0, '\0' }
-};
-
-struct options {
- long io_types; /* bitmask of which I/O types to test */
- const char *output_file; /* file to print report to */
- long num_dsets; /* number of datasets */
- long num_files; /* number of files */
- off_t num_bpp; /* number of bytes per proc per dset */
- int num_iters; /* number of iterations */
- off_t dset_size[MAX_DIMS]; /* Dataset size */
- size_t buf_size[MAX_DIMS]; /* Buffer size */
- size_t chk_size[MAX_DIMS]; /* Chunk size */
- int order[MAX_DIMS]; /* Dimension access order */
- int dset_rank; /* Rank */
- int buf_rank; /* Rank */
- int order_rank; /* Rank */
- int chk_rank; /* Rank */
- int print_times; /* print times as well as throughputs */
- int print_raw; /* print raw data throughput info */
- off_t h5_alignment; /* alignment in HDF5 file */
- off_t h5_threshold; /* threshold for alignment in HDF5 file */
- int h5_use_chunks; /* Make HDF5 dataset chunked */
- int h5_write_only; /* Perform the write tests only */
- int h5_extendable; /* Perform the write tests only */
- unsigned h5_use_mpi_posix; /* Use MPI-posix VFD for HDF5 I/O (instead of MPI-I/O VFD) */
- int verify; /* Verify data correctness */
- vfdtype vfd; /* File driver */
-
-};
-
-typedef struct _minmax {
- double min;
- double max;
- double sum;
- int num;
-} minmax;
-
-/* local functions */
-static off_t parse_size_directive(const char *size);
-static struct options *parse_command_line(int argc, char *argv[]);
-static void run_test_loop(struct options *options);
-static int run_test(iotype iot, parameters parms, struct options *opts);
-static void output_all_info(minmax *mm, int count, int indent_level);
-static void get_minmax(minmax *mm, double val);
-static minmax accumulate_minmax_stuff(minmax *mm, int count);
-static void output_results(const struct options *options, const char *name,
- minmax *table, int table_size, off_t data_size);
-static void output_report(const char *fmt, ...);
-static void print_indent(register int indent);
-static void usage(const char *prog);
-static void report_parameters(struct options *opts);
-
-/*
- * Function: main
- * Purpose: Start things up.
- * Return: EXIT_SUCCESS or EXIT_FAILURE
- * Programmer: Bill Wendling, 30. October 2001
- * Modifications:
- */
-int
-main(int argc, char **argv)
-{
- int ret;
- int exit_value = EXIT_SUCCESS;
- struct options *opts = NULL;
-
- output = stdout;
-
- opts = parse_command_line(argc, argv);
-
- if (!opts) {
- exit_value = EXIT_FAILURE;
- goto finish;
- }
-
- if (opts->output_file) {
- if ((output = fopen(opts->output_file, "w")) == NULL) {
- fprintf(stderr, "%s: cannot open output file\n", progname);
- perror(opts->output_file);
- goto finish;
- }
- }
-
- report_parameters(opts);
-
- run_test_loop(opts);
-
-finish:
- free(opts);
- return exit_value;
-}
-
-/*
- * Function: run_test_loop
- * Purpose: Run the I/O tests. Write the results to OUTPUT.
- *
- * - The slowest changing part of the test is the number of
- * processors to use. For each loop iteration, we divide that
- * number by 2 and rerun the test.
- *
- * - The second slowest is what type of IO API to perform. We have
- * three choices: POSIXIO, and HDF5.
- *
- * - Then we change the size of the buffer. This information is
- * inferred from the number of datasets to create and the number
- * of integers to put into each dataset. The backend code figures
- * this out.
- *
- * Return: Nothing
- * Programmer: Bill Wendling, 30. October 2001
- * Modifications:
- * Added 2D testing (Christian Chilan, 10. August 2005)
- */
-static void
-run_test_loop(struct options *opts)
-{
- parameters parms;
- int i;
- int doing_sio; /* if this process is doing SIO */
- size_t buf_bytes;
- /* load options into parameter structure */
- parms.num_files = opts->num_files;
- parms.num_dsets = opts->num_dsets;
- parms.num_iters = opts->num_iters;
- parms.rank = opts->dset_rank;
- parms.h5_align = opts->h5_alignment;
- parms.h5_thresh = opts->h5_threshold;
- parms.h5_use_chunks = opts->h5_use_chunks;
- parms.h5_extendable = opts->h5_extendable;
- parms.h5_write_only = opts->h5_write_only;
- parms.h5_use_mpi_posix = opts->h5_use_mpi_posix;
- parms.verify = opts->verify;
- parms.vfd = opts->vfd;
-
- /* load multidimensional options */
- parms.num_bytes = 1;
- buf_bytes = 1;
- for (i=0; i<parms.rank; i++){
- parms.buf_size[i] = opts->buf_size[i];
- parms.dset_size[i] = opts->dset_size[i];
- parms.chk_size[i] = opts->chk_size[i];
- parms.order[i] = opts->order[i];
- parms.num_bytes *= opts->dset_size[i];
- buf_bytes *= opts->buf_size[i];
- }
-
- /* print size information */
- output_report("Transfer Buffer Size (bytes): %d\n", buf_bytes);
- output_report("File Size(MB): %.2f\n",((double)parms.num_bytes) / ONE_MB);
-
- print_indent(0);
- if (opts->io_types & SIO_POSIX)
- run_test(POSIXIO, parms, opts);
-
- print_indent(0);
- if (opts->io_types & SIO_HDF5)
- run_test(HDF5, parms, opts);
-}
-
-/*
- * Function: run_test
- * Purpose: Inner loop call to actually run the I/O test.
- * Return: Nothing
- * Programmer: Bill Wendling, 18. December 2001
- * Modifications:
- */
-static int
-run_test(iotype iot, parameters parms, struct options *opts)
-{
- results res;
- register int i, ret_value = SUCCESS;
- int comm_size;
- off_t raw_size;
- minmax *write_sys_mm_table=NULL;
- minmax *write_mm_table=NULL;
- minmax *write_gross_mm_table=NULL;
- minmax *write_raw_mm_table=NULL;
- minmax *read_sys_mm_table=NULL;
- minmax *read_mm_table=NULL;
- minmax *read_gross_mm_table=NULL;
- minmax *read_raw_mm_table=NULL;
- minmax write_sys_mm = {0.0, 0.0, 0.0, 0};
- minmax write_mm = {0.0, 0.0, 0.0, 0};
- minmax write_gross_mm = {0.0, 0.0, 0.0, 0};
- minmax write_raw_mm = {0.0, 0.0, 0.0, 0};
- minmax read_sys_mm = {0.0, 0.0, 0.0, 0};
- minmax read_mm = {0.0, 0.0, 0.0, 0};
- minmax read_gross_mm = {0.0, 0.0, 0.0, 0};
- minmax read_raw_mm = {0.0, 0.0, 0.0, 0};
-
- raw_size = (off_t)parms.num_bytes;
- parms.io_type = iot;
- print_indent(2);
- output_report("IO API = ");
-
- switch (iot) {
- case POSIXIO:
- output_report("POSIX\n");
- break;
- case HDF5:
- output_report("HDF5\n");
- break;
- }
-
- /* allocate space for tables minmax and that it is sufficient */
- /* to initialize all elements to zeros by calloc. */
- write_sys_mm_table = calloc((size_t)parms.num_iters , sizeof(minmax));
- write_mm_table = calloc((size_t)parms.num_iters , sizeof(minmax));
- write_gross_mm_table = calloc((size_t)parms.num_iters , sizeof(minmax));
- write_raw_mm_table = calloc((size_t)parms.num_iters , sizeof(minmax));
-
- if (!parms.h5_write_only) {
- read_sys_mm_table = calloc((size_t)parms.num_iters , sizeof(minmax));
- read_mm_table = calloc((size_t)parms.num_iters , sizeof(minmax));
- read_gross_mm_table = calloc((size_t)parms.num_iters , sizeof(minmax));
- read_raw_mm_table = calloc((size_t)parms.num_iters , sizeof(minmax));
- }
-
- /* Do IO iteration times, collecting statistics each time */
- for (i = 0; i < parms.num_iters; ++i) {
- double t;
- res = do_sio(parms);
-
- /* gather all of the "sys write" times */
- t = get_time(res.timers, HDF5_MPI_WRITE);
- get_minmax(&write_sys_mm, t);
-
- write_sys_mm_table[i] = write_sys_mm;
-
- /* gather all of the "write" times */
- t = get_time(res.timers, HDF5_FINE_WRITE_FIXED_DIMS);
- get_minmax(&write_mm, t);
-
- write_mm_table[i] = write_mm;
-
- /* gather all of the "write" times from open to close */
- t = get_time(res.timers, HDF5_GROSS_WRITE_FIXED_DIMS);
- get_minmax(&write_gross_mm, t);
-
- write_gross_mm_table[i] = write_gross_mm;
-
- /* gather all of the raw "write" times */
- t = get_time(res.timers, HDF5_RAW_WRITE_FIXED_DIMS);
- get_minmax(&write_raw_mm, t);
-
- write_raw_mm_table[i] = write_raw_mm;
-
- if (!parms.h5_write_only) {
- /* gather all of the "mpi read" times */
- t = get_time(res.timers, HDF5_MPI_READ);
- get_minmax(&read_sys_mm, t);
-
- read_sys_mm_table[i] = read_sys_mm;
-
- /* gather all of the "read" times */
- t = get_time(res.timers, HDF5_FINE_READ_FIXED_DIMS);
- get_minmax(&read_mm, t);
-
- read_mm_table[i] = read_mm;
-
- /* gather all of the "read" times from open to close */
- t = get_time(res.timers, HDF5_GROSS_READ_FIXED_DIMS);
- get_minmax(&read_gross_mm, t);
-
- read_gross_mm_table[i] = read_gross_mm;
-
- /* gather all of the raw "read" times */
- t = get_time(res.timers, HDF5_RAW_READ_FIXED_DIMS);
- get_minmax(&read_raw_mm, t);
-
- read_raw_mm_table[i] = read_gross_mm;
- }
- sio_time_destroy(res.timers);
- }
-
- /*
- * Show various statistics
- */
- /* Write statistics */
- /* Print the raw data throughput if desired */
- if (opts->print_raw) {
- /* accumulate and output the max, min, and average "raw write" times */
- if (sio_debug_level >= 3) {
- /* output all of the times for all iterations */
- print_indent(3);
- output_report("Raw Data Write details:\n");
- output_all_info(write_raw_mm_table, parms.num_iters, 4);
- }
-
- output_results(opts,"Raw Data Write",write_raw_mm_table,parms.num_iters,raw_size);
- } /* end if */
-
- /* show sys write statics */
-#if 0
- if (sio_debug_level >= 3) {
- /* output all of the times for all iterations */
- print_indent(3);
- output_report("MPI Write details:\n");
- output_all_info(write_sys_mm_table, parms.num_iters, 4);
- }
-#endif
- /* We don't currently output the MPI write results */
-
- /* accumulate and output the max, min, and average "write" times */
- if (sio_debug_level >= 3) {
- /* output all of the times for all iterations */
- print_indent(3);
- output_report("Write details:\n");
- output_all_info(write_mm_table, parms.num_iters, 4);
- }
-
- output_results(opts,"Write",write_mm_table,parms.num_iters,raw_size);
-
- /* accumulate and output the max, min, and average "gross write" times */
- if (sio_debug_level >= 3) {
- /* output all of the times for all iterations */
- print_indent(3);
- output_report("Write Open-Close details:\n");
- output_all_info(write_gross_mm_table, parms.num_iters, 4);
- }
-
- output_results(opts,"Write Open-Close",write_gross_mm_table,parms.num_iters,raw_size);
-
- if (!parms.h5_write_only) {
- /* Read statistics */
- /* Print the raw data throughput if desired */
- if (opts->print_raw) {
- /* accumulate and output the max, min, and average "raw read" times */
- if (sio_debug_level >= 3) {
- /* output all of the times for all iterations */
- print_indent(3);
- output_report("Raw Data Read details:\n");
- output_all_info(read_raw_mm_table, parms.num_iters, 4);
- }
-
- output_results(opts, "Raw Data Read", read_raw_mm_table,
- parms.num_iters, raw_size);
- } /* end if */
-
- /* show mpi read statics */
-#if 0
- if (sio_debug_level >= 3) {
- /* output all of the times for all iterations */
- print_indent(3);
- output_report("MPI Read details:\n");
- output_all_info(read_sys_mm_table, parms.num_iters, 4);
- }
-#endif
- /* We don't currently output the MPI read results */
-
- /* accumulate and output the max, min, and average "read" times */
- if (sio_debug_level >= 3) {
- /* output all of the times for all iterations */
- print_indent(3);
- output_report("Read details:\n");
- output_all_info(read_mm_table, parms.num_iters, 4);
- }
-
- output_results(opts, "Read", read_mm_table, parms.num_iters, raw_size);
-
- /* accumulate and output the max, min, and average "gross read" times */
- if (sio_debug_level >= 3) {
- /* output all of the times for all iterations */
- print_indent(3);
- output_report("Read Open-Close details:\n");
- output_all_info(read_gross_mm_table, parms.num_iters, 4);
- }
-
- output_results(opts, "Read Open-Close", read_gross_mm_table,
- parms.num_iters, raw_size);
- }
-
- /* clean up our mess */
- free(write_sys_mm_table);
- free(write_mm_table);
- free(write_gross_mm_table);
- free(write_raw_mm_table);
-
- if (!parms.h5_write_only) {
- free(read_sys_mm_table);
- free(read_mm_table);
- free(read_gross_mm_table);
- free(read_raw_mm_table);
- }
-
- return ret_value;
-}
-
-/*
- * Function: output_all_info
- * Purpose:
- * Return: Nothing
- * Programmer: Bill Wendling, 29. January 2002
- * Modifications:
- */
-static void
-output_all_info(minmax *mm, int count, int indent_level)
-{
- int i;
-
- for (i = 0; i < count; ++i) {
- print_indent(indent_level);
- output_report("Iteration %d:\n", i + 1);
- print_indent(indent_level + 1);
- output_report("Minimum Time: %.2fs\n", mm[i].min);
- print_indent(indent_level + 1);
- output_report("Maximum Time: %.2fs\n", mm[i].max);
- }
-}
-
-/*
- * Function: get_minmax
- * Purpose: Gather all the min, max and total of val.
- * Return: Nothing
- * Programmer: Bill Wendling, 21. December 2001
- * Modifications:
- * Use MPI_Allreduce to do it. -akc, 2002/01/11
- */
-
-static void
-get_minmax(minmax *mm, double val)
-{
- mm->max = val;
- mm->min = val;
- mm->sum = val;
-}
-
-/*
- * Function: accumulate_minmax_stuff
- * Purpose: Accumulate the minimum, maximum, and average of the times
- * across all processes.
- * Return: TOTAL_MM - the total of all of these.
- * Programmer: Bill Wendling, 21. December 2001
- * Modifications:
- * Changed to use seconds instead of MB/s - QAK, 5/9/02
- */
-static minmax
-accumulate_minmax_stuff(minmax *mm, int count)
-{
- int i;
- minmax total_mm;
-
- total_mm.sum = 0.0;
- total_mm.max = -DBL_MAX;
- total_mm.min = DBL_MAX;
- total_mm.num = count;
-
- for (i = 0; i < count; ++i) {
- double m = mm[i].max;
-
- total_mm.sum += m;
-
- if (m < total_mm.min)
- total_mm.min = m;
-
- if (m > total_mm.max)
- total_mm.max = m;
- }
-
- return total_mm;
-}
-
-
-/*
- * Function: output_results
- * Purpose: Print information about the time & bandwidth for a given
- * minmax & # of iterations.
- * Return: Nothing
- * Programmer: Quincey Koziol, 9. May 2002
- * Modifications:
- */
-static void
-output_results(const struct options *opts, const char *name, minmax *table,
- int table_size,off_t data_size)
-{
- minmax total_mm;
-
- total_mm = accumulate_minmax_stuff(table, table_size);
-
- print_indent(3);
- output_report("%s (%d iteration(s)):\n", name,table_size);
-
- /* Note: The maximum throughput uses the minimum amount of time & vice versa */
-
- print_indent(4);
- output_report("Maximum Throughput: %6.2f MB/s", MB_PER_SEC(data_size,total_mm.min));
- if(opts->print_times)
- output_report(" (%7.3f s)\n", total_mm.min);
- else
- output_report("\n");
-
- print_indent(4);
- output_report("Average Throughput: %6.2f MB/s",
- MB_PER_SEC(data_size,total_mm.sum / total_mm.num));
- if(opts->print_times)
- output_report(" (%7.3f s)\n", (total_mm.sum / total_mm.num));
- else
- output_report("\n");
-
- print_indent(4);
- output_report("Minimum Throughput: %6.2f MB/s", MB_PER_SEC(data_size,total_mm.max));
- if(opts->print_times)
- output_report(" (%7.3f s)\n", total_mm.max);
- else
- output_report("\n");
-}
-
-/*
- * Function: output_report
- * Purpose: Print a line of the report. Only do so if I'm the 0 process.
- * Return: Nothing
- * Programmer: Bill Wendling, 19. December 2001
- * Modifications:
- */
-static void
-output_report(const char *fmt, ...)
-{
- va_list ap;
-
- va_start(ap, fmt);
- vfprintf(output, fmt, ap);
- va_end(ap);
-}
-
-/*
- * Function: print_indent
- * Purpose: Print spaces to indent a new line of text for pretty printing
- * things.
- * Return: Nothing
- * Programmer: Bill Wendling, 29. October 2001
- * Modifications:
- */
-static void
-print_indent(register int indent)
-{
- indent *= TAB_SPACE;
-
- for (; indent > 0; --indent)
- fputc(' ', output);
-}
-
-static void
-recover_size_and_print(long_long val, const char *end)
-{
- if (val >= ONE_KB && (val % ONE_KB) == 0) {
- if (val >= ONE_MB && (val % ONE_MB) == 0) {
- if (val >= ONE_GB && (val % ONE_GB) == 0)
- HDfprintf(output, "%HdGB%s", val / ONE_GB, end);
- else
- HDfprintf(output, "%HdMB%s", val / ONE_MB, end);
- } else {
- HDfprintf(output, "%HdKB%s", val / ONE_KB, end);
- }
- } else {
- HDfprintf(output, "%Hd%s", val, end);
- }
-}
-
-static void
-print_io_api(long io_types)
-{
- if (io_types & SIO_POSIX)
- HDfprintf(output, "posix ");
- if (io_types & SIO_HDF5)
- HDfprintf(output, "hdf5 ");
- HDfprintf(output, "\n");
-}
-
-static void
-report_parameters(struct options *opts)
-{
- int i, rank;
- rank = opts->dset_rank;
-
- print_version("HDF5 Library"); /* print library version */
- HDfprintf(output, "==== Parameters ====\n");
-
- HDfprintf(output, "IO API=");
- print_io_api(opts->io_types);
-
- HDfprintf(output, "Number of iterations=%Hd\n",
- (long_long)opts->num_iters);
-
- HDfprintf(output, "Dataset size=");
-
- for (i=0; i<rank; i++)
- recover_size_and_print((long_long)opts->dset_size[i], " ");
- HDfprintf(output, "\n");
-
-
- HDfprintf(output, "Transfer buffer size=");
- for (i=0; i<rank; i++)
- recover_size_and_print((long_long)opts->buf_size[i], " ");
- HDfprintf(output, "\n");
-
- HDfprintf(output, "Dimension access order=");
- for (i=0; i<rank; i++)
- recover_size_and_print((long_long)opts->order[i], " ");
- HDfprintf(output, "\n");
-
- if (opts->io_types & SIO_HDF5) {
-
- HDfprintf(output, "HDF5 data storage method=");
-
- if (opts->h5_use_chunks){
-
- HDfprintf(output, "Chunked\n");
- HDfprintf(output, "HDF5 chunk size=");
- for (i=0; i<rank; i++)
- recover_size_and_print((long_long)opts->chk_size[i], " ");
- HDfprintf(output, "\n");
-
- HDfprintf(output, "HDF5 dataset dimensions=");
- if (opts->h5_extendable) {
- HDfprintf(output, "Extendable\n");
- }
- else {
- HDfprintf(output, "Fixed\n");
- }
- }
- else {
- HDfprintf(output, "Contiguous\n");
- }
-
- HDfprintf(output, "HDF5 file driver=");
- if (opts->vfd==sec2) {
- HDfprintf(output, "sec2\n");
- } else if (opts->vfd==stdio) {
- HDfprintf(output, "stdio\n");
- } else if (opts->vfd==core) {
- HDfprintf(output, "core\n");
- } else if (opts->vfd==split) {
- HDfprintf(output, "split\n");
- } else if (opts->vfd==multi) {
- HDfprintf(output, "multi\n");
- } else if (opts->vfd==family) {
- HDfprintf(output, "family\n");
- } else if (opts->vfd==direct) {
- HDfprintf(output, "direct\n");
- }
- }
- HDfprintf(output, "==== End of Parameters ====\n");
- HDfprintf(output, "\n");
-}
-
-/*
- * Function: parse_command_line
- * Purpose: Parse the command line options and return a STRUCT OPTIONS
- * structure which will need to be freed by the calling function.
- * Return: Pointer to an OPTIONS structure
- * Programmer: Bill Wendling, 31. October 2001
- * Modifications:
- * Added 2D testing (Christian Chilan, 10. August 2005)
- */
-static struct options *
-parse_command_line(int argc, char *argv[])
-{
- register int opt;
- struct options *cl_opts;
- int i, default_rank, actual_rank, ranks[4];
- cl_opts = (struct options *)malloc(sizeof(struct options));
-
- cl_opts->output_file = NULL;
- cl_opts->io_types = 0; /* will set default after parsing options */
- cl_opts->num_iters = 1;
-
- default_rank = 2;
-
- cl_opts->dset_rank = 0;
- cl_opts->buf_rank = 0;
- cl_opts->chk_rank = 0;
- cl_opts->order_rank = 0;
-
- for (i=0; i<MAX_DIMS; i++){
- cl_opts->buf_size[i]=(i+1)*10;
- cl_opts->dset_size[i]=(i+1)*100;
- cl_opts->chk_size[i]=(i+1)*10;
- cl_opts->order[i]=i+1;
- }
-
- cl_opts->vfd = sec2;
-
- cl_opts->print_times = FALSE; /* Printing times is off by default */
- cl_opts->print_raw = FALSE; /* Printing raw data throughput is off by default */
- cl_opts->h5_alignment = 1; /* No alignment for HDF5 objects by default */
- cl_opts->h5_threshold = 1; /* No threshold for aligning HDF5 objects by default */
- cl_opts->h5_use_chunks = FALSE; /* Don't chunk the HDF5 dataset by default */
- cl_opts->h5_write_only = FALSE; /* Do both read and write by default */
- cl_opts->h5_extendable = FALSE; /* Use extendable dataset */
- cl_opts->h5_use_mpi_posix = FALSE; /* Don't use MPI-posix VFD for HDF5 I/O by default */
- cl_opts->verify = FALSE; /* No Verify data correctness by default */
-
- while ((opt = get_option(argc, (const char **)argv, s_opts, l_opts)) != EOF) {
- switch ((char)opt) {
- case 'a':
- cl_opts->h5_alignment = parse_size_directive(opt_arg);
- break;
- case 'A':
- {
- const char *end = opt_arg;
- while (end && *end != '\0') {
- char buf[10];
- int i;
-
- memset(buf, '\0', sizeof(buf));
-
- for (i = 0; *end != '\0' && *end != ','; ++end)
- if (isalnum(*end) && i < 10)
- buf[i++] = *end;
-
- if (!strcasecmp(buf, "hdf5")) {
- cl_opts->io_types |= SIO_HDF5;
- } else if (!strcasecmp(buf, "posix")) {
- cl_opts->io_types |= SIO_POSIX;
- } else {
- fprintf(stderr, "sio_perf: invalid --api option %s\n",
- buf);
- exit(EXIT_FAILURE);
- }
-
- if (*end == '\0')
- break;
-
- end++;
- }
- }
-
- break;
-#if 0
- case 'b':
- /* the future "binary" option */
- break;
-#endif /* 0 */
- case 'c':
- /* Turn on chunked HDF5 dataset creation */
- cl_opts->h5_use_chunks = 1;
- {
- const char *end = opt_arg;
- int j = 0;
-
- while (end && *end != '\0') {
- char buf[10];
- int i;
-
- memset(buf, '\0', sizeof(buf));
-
- for (i = 0; *end != '\0' && *end != ','; ++end)
- if (isalnum(*end) && i < 10)
- buf[i++] = *end;
-
- cl_opts->chk_size[j] = parse_size_directive(buf);
-
- j++;
-
- if (*end == '\0')
- break;
-
- end++;
- }
- cl_opts->chk_rank = j;
- }
-
- break;
-
-
- case 'D':
- {
- const char *end = opt_arg;
-
- while (end && *end != '\0') {
- char buf[10];
- int i;
-
- memset(buf, '\0', sizeof(buf));
-
- for (i = 0; *end != '\0' && *end != ','; ++end)
- if (isalnum(*end) && i < 10)
- buf[i++] = *end;
-
- if (strlen(buf) > 1 || isdigit(buf[0])) {
- size_t j;
-
- for (j = 0; j < 10 && buf[j] != '\0'; ++j)
- if (!isdigit(buf[j])) {
- fprintf(stderr, "sio_perf: invalid --debug option %s\n",
- buf);
- exit(EXIT_FAILURE);
- }
-
- sio_debug_level = atoi(buf);
-
- if (sio_debug_level > 4)
- sio_debug_level = 4;
- else if (sio_debug_level < 0)
- sio_debug_level = 0;
- } else {
- switch (*buf) {
- case 'r':
- /* Turn on raw data throughput info */
- cl_opts->print_raw = TRUE;
- break;
- case 't':
- /* Turn on time printing */
- cl_opts->print_times = TRUE;
- break;
- case 'v':
- /* Turn on verify data correctness*/
- cl_opts->verify = TRUE;
- break;
- default:
- fprintf(stderr, "sio_perf: invalid --debug option %s\n", buf);
- exit(EXIT_FAILURE);
- }
- }
-
- if (*end == '\0')
- break;
-
- end++;
- }
- }
-
- break;
- case 'e':
- {
- const char *end = opt_arg;
- int j = 0;
-
- while (end && *end != '\0') {
- char buf[10];
- int i;
-
- memset(buf, '\0', sizeof(buf));
-
- for (i = 0; *end != '\0' && *end != ','; ++end)
- if (isalnum(*end) && i < 10)
- buf[i++] = *end;
-
- cl_opts->dset_size[j] = parse_size_directive(buf);
-
- j++;
-
- if (*end == '\0')
- break;
-
- end++;
- }
- cl_opts->dset_rank = j;
- }
-
- break;
-
- case 'i':
- cl_opts->num_iters = atoi(opt_arg);
- break;
- case 'm':
- /* Turn on MPI-posix VFL driver for HDF5 I/O */
- cl_opts->h5_use_mpi_posix = TRUE;
- break;
- case 'o':
- cl_opts->output_file = opt_arg;
- break;
- case 'T':
- cl_opts->h5_threshold = parse_size_directive(opt_arg);
- break;
- case 'v':
- if (!strcasecmp(opt_arg, "sec2")) {
- cl_opts->vfd=sec2;
- } else if (!strcasecmp(opt_arg, "stdio")) {
- cl_opts->vfd=stdio;
- } else if (!strcasecmp(opt_arg, "core")) {
- cl_opts->vfd=core;
- } else if (!strcasecmp(opt_arg, "split")) {
- cl_opts->vfd=split;
- } else if (!strcasecmp(opt_arg, "multi")) {
- cl_opts->vfd=multi;
- } else if (!strcasecmp(opt_arg, "family")) {
- cl_opts->vfd=family;
- } else if (!strcasecmp(opt_arg, "direct")) {
- cl_opts->vfd=direct;
- } else {
- fprintf(stderr, "sio_perf: invalid --api option %s\n",
- opt_arg);
- exit(EXIT_FAILURE);
- }
- break;
- case 'w':
- cl_opts->h5_write_only = TRUE;
- break;
- case 't':
- cl_opts->h5_extendable = TRUE;
- break;
- case 'x':
- {
- const char *end = opt_arg;
- int j = 0;
-
- while (end && *end != '\0') {
- char buf[10];
- int i;
-
- memset(buf, '\0', sizeof(buf));
-
- for (i = 0; *end != '\0' && *end != ','; ++end)
- if (isalnum(*end) && i < 10)
- buf[i++] = *end;
-
- cl_opts->buf_size[j] = parse_size_directive(buf);
-
- j++;
-
- if (*end == '\0')
- break;
-
- end++;
- }
- cl_opts->buf_rank = j;
- }
-
- break;
-
- case 'r':
- {
- const char *end = opt_arg;
- int j = 0;
-
- while (end && *end != '\0') {
- char buf[10];
- int i;
-
- memset(buf, '\0', sizeof(buf));
-
- for (i = 0; *end != '\0' && *end != ','; ++end)
- if (isalnum(*end) && i < 10)
- buf[i++] = *end;
-
- cl_opts->order[j] = parse_size_directive(buf);
-
- j++;
-
- if (*end == '\0')
- break;
-
- end++;
- }
-
- cl_opts->order_rank = j;
- }
-
- break;
-
- case 'h':
- case '?':
- default:
- usage(progname);
- free(cl_opts);
- return NULL;
- }
- }
-
- /* perform rank consistency analysis */
- actual_rank = 0;
-
- ranks[0] = cl_opts->dset_rank;
- ranks[1] = cl_opts->buf_rank;
- ranks[2] = cl_opts->order_rank;
- ranks[3] = cl_opts->chk_rank;
-
- for (i=0; i<4; i++) {
- if (ranks[i]>0) {
- if (!actual_rank) {
- actual_rank = ranks[i];
- }
- else {
- if (actual_rank != ranks[i])
- exit(EXIT_FAILURE);
- }
- }
- }
-
- if (!actual_rank)
- actual_rank = default_rank;
-
- cl_opts->dset_rank = actual_rank;
- cl_opts->buf_rank = actual_rank;
- cl_opts->order_rank = actual_rank;
- cl_opts->chk_rank = actual_rank;
-
-
- /* set default if none specified yet */
- if (!cl_opts->io_types)
- cl_opts->io_types = SIO_HDF5 | SIO_POSIX; /* run all API */
-
- /* verify parameters sanity. Adjust if needed. */
- /* cap xfer_size with bytes per process */
- if (cl_opts->num_iters <= 0)
- cl_opts->num_iters = 1;
-
- return cl_opts;
-}
-
-/*
- * Function: parse_size_directive
- * Purpose: Parse the size directive passed on the commandline. The size
- * directive is an integer followed by a size indicator:
- *
- * K, k - Kilobyte
- * M, m - Megabyte
- * G, g - Gigabyte
- *
- * Return: The size as a off_t because this is related to file size.
- * If an unknown size indicator is used, then the program will
- * exit with EXIT_FAILURE as the return value.
- * Programmer: Bill Wendling, 18. December 2001
- * Modifications:
- */
-
-static off_t
-parse_size_directive(const char *size)
-{
- off_t s;
- char *endptr;
-
- s = strtol(size, &endptr, 10);
-
- if (endptr && *endptr) {
- while (*endptr != '\0' && (*endptr == ' ' || *endptr == '\t'))
- ++endptr;
-
- switch (*endptr) {
- case 'K':
- case 'k':
- s *= ONE_KB;
- break;
- case 'M':
- case 'm':
- s *= ONE_MB;
- break;
- case 'G':
- case 'g':
- s *= ONE_GB;
- break;
- default:
- fprintf(stderr, "Illegal size specifier '%c'\n", *endptr);
- exit(EXIT_FAILURE);
- }
- }
-
- return s;
-}
-
-/*
- * Function: usage
- * Purpose: Print a usage message and then exit.
- * Return: Nothing
- * Programmer: Bill Wendling, 31. October 2001
- * Modifications:
- * Added 2D testing (Christian Chilan, 10. August 2005)
- */
-static void
-usage(const char *prog)
-{
-
-
- print_version(prog);
- printf("usage: %s [OPTIONS]\n", prog);
- printf(" OPTIONS\n");
- printf(" -h, --help Print a usage message and exit\n");
- printf(" -a S, --align=S Alignment of objects in HDF5 file [default: 1]\n");
- printf(" -A AL, --api=AL Which APIs to test [default: all of them]\n");
-#if 0
- printf(" -b, --binary The elusive binary option\n");
-#endif /* 0 */
- printf(" -B S, --block-size=S Block size within transfer buffer\n");
- printf(" (see below for description)\n");
- printf(" [default: half the number of bytes per processor per dataset]\n");
- printf(" -c, --chunk Create HDF5 datasets chunked [default: off]\n");
- printf(" -C, --collective Use collective I/O for MPI and HDF5 APIs\n");
- printf(" [default: off (i.e. independent I/O)]\n");
- printf(" -d N, --num-dsets=N Number of datasets per file [default:1]\n");
- printf(" -D DL, --debug=DL Indicate the debugging level\n");
- printf(" [default: no debugging]\n");
- printf(" -e S, --num-bytes=S Number of bytes per process per dataset\n");
- printf(" [default: 256K for 1D, 8K for 2D]\n");
- printf(" -F N, --num-files=N Number of files [default: 1]\n");
- printf(" -g, --geometry Use 2D geometry [default: 1D]\n");
- printf(" -i N, --num-iterations=N Number of iterations to perform [default: 1]\n");
- printf(" -I, --interleaved Interleaved block I/O (see below for example)\n");
- printf(" [default: Contiguous block I/O]\n");
- printf(" -m, --mpi-posix Use MPI-posix driver for HDF5 I/O\n");
- printf(" [default: use MPI-I/O driver]\n");
- printf(" -o F, --output=F Output raw data into file F [default: none]\n");
- printf(" -p N, --min-num-processes=N Minimum number of processes to use [default: 1]\n");
- printf(" -P N, --max-num-processes=N Maximum number of processes to use\n");
- printf(" [default: all MPI_COMM_WORLD processes ]\n");
- printf(" -T S, --threshold=S Threshold for alignment of objects in HDF5 file\n");
- printf(" [default: 1]\n");
- printf(" -w, --write-only Perform write tests not the read tests\n");
- printf(" -x S, --min-xfer-size=S Minimum transfer buffer size\n");
- printf(" [default: half the number of bytes per processor per dataset]\n");
- printf(" -X S, --max-xfer-size=S Maximum transfer buffer size\n");
- printf(" [default: the number of bytes per processor per dataset]\n");
- printf("\n");
- printf(" F - is a filename.\n");
- printf(" N - is an integer >=0.\n");
- printf(" S - is a size specifier, an integer >=0 followed by a size indicator:\n");
- printf(" K - Kilobyte (%d)\n", ONE_KB);
- printf(" M - Megabyte (%d)\n", ONE_MB);
- printf(" G - Gigabyte (%d)\n", ONE_GB);
- printf("\n");
- printf(" Example: '37M' is 37 megabytes or %d bytes\n", 37*ONE_MB);
- printf("\n");
- printf(" AL - is an API list. Valid values are:\n");
- printf(" phdf5 - Parallel HDF5\n");
- printf(" mpiio - MPI-I/O\n");
- printf(" posix - POSIX\n");
- printf("\n");
- printf(" Example: --api=mpiio,phdf5\n");
- printf("\n");
- printf(" Block size vs. Transfer buffer size:\n");
- printf(" The transfer buffer size is the size of a buffer in memory, which is\n");
- printf(" broken into 'block size' pieces and written to the file. The pattern\n");
- printf(" of the blocks in the file is described below in the 'Interleaved vs.\n");
- printf(" Contiguous blocks' example.\n");
- printf("\n");
- printf(" If the collective I/O option is given, the blocks in each transfer buffer\n");
- printf(" are written at once with an MPI derived type, for the MPI-I/O and PHDF5\n");
- printf(" APIs.\n");
- printf("\n");
- printf(" Interleaved vs. Contiguous blocks:\n");
- printf(" When contiguous blocks are written to a dataset, the dataset is divided\n");
- printf(" into '# processes' regions and each process writes data to its own region.\n");
- printf(" When interleaved blocks are written to a dataset, space for the first\n");
- printf(" block of the first process is allocated in the dataset, then space is\n");
- printf(" allocated for the first block of the second process, etc. until space is\n");
- printf(" allocated for the first block of each process, then space is allocated for\n");
- printf(" the second block of the first process, the second block of the second\n");
- printf(" process, etc.\n");
- printf("\n");
- printf(" For example, with a 4 process run, 1MB bytes-per-process, 256KB transfer\n");
- printf(" buffer size, and 64KB block size,\n");
- printf(" 16 contiguous blocks per process are written to the file like so:\n");
- printf(" 1111111111111111222222222222222233333333333333334444444444444444\n");
- printf(" 16 interleaved blocks per process are written to the file like so:\n");
- printf(" 1234123412341234123412341234123412341234123412341234123412341234\n");
- printf(" If collective I/O is turned on, all of the four blocks per transfer\n");
- printf(" buffer will be written in one collective I/O call.\n");
- printf("\n");
- printf(" DL - is a list of debugging flags. Valid values are:\n");
- printf(" 1 - Minimal\n");
- printf(" 2 - Not quite everything\n");
- printf(" 3 - Everything\n");
- printf(" 4 - The kitchen sink\n");
- printf(" r - Raw data I/O throughput information\n");
- printf(" t - Times as well as throughputs\n");
- printf(" v - Verify data correctness\n");
- printf("\n");
- printf(" Example: --debug=2,r,t\n");
- printf("\n");
- printf(" Environment variables:\n");
- printf(" HDF5_NOCLEANUP Do not remove data files if set [default remove]\n");
- printf(" HDF5_MPI_INFO MPI INFO object key=value separated by ;\n");
- printf(" HDF5_PARAPREFIX Paralllel data files prefix\n");
- fflush(stdout);
-}
-