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-rw-r--r--perform/pio_perf.c127
1 files changed, 91 insertions, 36 deletions
diff --git a/perform/pio_perf.c b/perform/pio_perf.c
index 0f43f15..5ddac67 100644
--- a/perform/pio_perf.c
+++ b/perform/pio_perf.c
@@ -109,7 +109,7 @@ int pio_debug_level = 0;/* The debug level:
*/
/* local variables */
-static const char *progname = "pio_perf";
+static const char *progname = "h5perf";
/*
* Command-line options: The user can specify short or long-named
@@ -117,14 +117,11 @@ static const char *progname = "pio_perf";
* adding more, make sure that they don't clash with each other.
*/
#if 1
-static const char *s_opts = "ha:A:cCD:f:P:p:X:x:nd:F:i:Io:stT:w";
+static const char *s_opts = "a:A:B:cCd:D:e:F:hi:Ino:p:P:stT:wx:X:";
#else
-static const char *s_opts = "ha:A:bcCD:f:P:p:X:x:nd:F:i:Io:stT:w";
+static const char *s_opts = "a:A:bB:cCd:D:e:F:hi:Ino:p:P:stT:wx:X:";
#endif /* 1 */
static struct long_options l_opts[] = {
- { "help", no_arg, 'h' },
- { "hel", no_arg, 'h' },
- { "he", no_arg, 'h' },
{ "align", require_arg, 'a' },
{ "alig", require_arg, 'a' },
{ "ali", require_arg, 'a' },
@@ -139,6 +136,15 @@ static struct long_options l_opts[] = {
{ "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' },
@@ -156,13 +162,9 @@ static struct long_options l_opts[] = {
{ "debu", require_arg, 'D' },
{ "deb", require_arg, 'D' },
{ "de", require_arg, 'D' },
- { "file-size", require_arg, 'f' },
- { "file-siz", require_arg, 'f' },
- { "file-si", require_arg, 'f' },
- { "file-s", require_arg, 'f' },
- { "file", require_arg, 'f' },
- { "fil", require_arg, 'f' },
- { "fi", require_arg, 'f' },
+ { "help", no_arg, 'h' },
+ { "hel", no_arg, 'h' },
+ { "he", no_arg, 'h' },
{ "interleaved", require_arg, 'I' },
{ "interleave", require_arg, 'I' },
{ "interleav", require_arg, 'I' },
@@ -213,6 +215,11 @@ static struct long_options l_opts[] = {
{ "no-f", no_arg, 'n' },
{ "no-", no_arg, 'n' },
{ "no", no_arg, 'n' },
+ { "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' },
@@ -260,14 +267,15 @@ static struct long_options l_opts[] = {
struct options {
long io_types; /* bitmask of which I/O types to test */
const char *output_file; /* file to print report to */
- off_t file_size; /* size of file */
long num_dsets; /* number of datasets */
long num_files; /* number of files */
+ size_t num_bpp; /* number of bytes per proc per dset */
int num_iters; /* number of iterations */
int max_num_procs; /* maximum number of processes to use */
int min_num_procs; /* minimum number of processes to use */
size_t max_xfer_size; /* maximum transfer buffer size */
size_t min_xfer_size; /* minimum transfer buffer size */
+ size_t blk_size; /* Block size */
unsigned interleaved; /* Interleaved vs. contiguous blocks */
unsigned collective; /* Collective vs. independent I/O */
int print_times; /* print times as well as throughputs */
@@ -410,6 +418,7 @@ run_test_loop(struct options *opts)
parms.num_files = opts->num_files;
parms.num_dsets = opts->num_dsets;
parms.num_iters = opts->num_iters;
+ parms.blk_size = opts->blk_size;
parms.interleaved = opts->interleaved;
parms.collective = opts->collective;
parms.h5_align = opts->h5_alignment;
@@ -439,17 +448,16 @@ run_test_loop(struct options *opts)
for (buf_size = opts->min_xfer_size;
buf_size <= opts->max_xfer_size; buf_size <<= 1) {
parms.buf_size = buf_size;
- parms.num_elmts = opts->file_size /
- (off_t)(parms.num_dsets * sizeof(int));
+ parms.num_bytes = (off_t)opts->num_bpp*parms.num_procs;
print_indent(1);
output_report("Transfer Buffer Size: %ld bytes, File size: %.2f MBs\n",
buf_size,
- ((double)parms.num_dsets * (double)parms.num_elmts *
- (double)sizeof(int)) / ONE_MB);
+ ((double)parms.num_dsets * (double)parms.num_bytes)
+ / ONE_MB);
print_indent(1);
- output_report(" # of files: %ld, # of dsets: %ld, # of elmts per dset: %ld\n",
- parms.num_files, parms.num_dsets, parms.num_elmts);
+ output_report(" # of files: %ld, # of datasets: %ld, dataset size: %.2f MBs\n",
+ parms.num_files, parms.num_dsets, (double)parms.num_bytes/ONE_MB);
if (opts->io_types & PIO_POSIX)
run_test(POSIXIO, parms, opts);
@@ -503,7 +511,7 @@ run_test(iotype iot, parameters parms, struct options *opts)
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_dsets * (off_t)parms.num_elmts * (off_t)sizeof(int);
+ raw_size = (off_t)parms.num_dsets * (off_t)parms.num_bytes;
parms.io_type = iot;
print_indent(2);
output_report("IO API = ");
@@ -996,8 +1004,8 @@ report_parameters(struct options *opts)
HDfprintf(output, "rank %d: IO API=", rank);
print_io_api(opts->io_types);
- HDfprintf(output, "rank %d: File size=", rank);
- recover_size_and_print((long_long)opts->file_size, "\n");
+ HDfprintf(output, "rank %d: Number of bytes per process per dataset=", rank);
+ recover_size_and_print((long_long)opts->num_bpp, "\n");
HDfprintf(output, "rank %d: Number of files=%Hd\n", rank,
(long_long)opts->num_files);
@@ -1008,9 +1016,21 @@ report_parameters(struct options *opts)
HDfprintf(output, "rank %d: Number of processes=%d:%d\n", rank,
opts->min_num_procs, opts->max_num_procs);
+ HDfprintf(output, "rank %d: Size of dataset(s)=", rank);
+ recover_size_and_print((long_long)(opts->num_bpp * opts->min_num_procs), ":");
+ recover_size_and_print((long_long)(opts->num_bpp * opts->max_num_procs), "\n");
+
+ HDfprintf(output, "rank %d: File size=", rank);
+ recover_size_and_print((long_long)(opts->num_bpp * opts->min_num_procs
+ * opts->num_dsets), ":");
+ recover_size_and_print((long_long)(opts->num_bpp * opts->max_num_procs
+ * opts->num_dsets), "\n");
+
HDfprintf(output, "rank %d: Transfer buffer size=", rank);
recover_size_and_print((long_long)opts->min_xfer_size, ":");
recover_size_and_print((long_long)opts->max_xfer_size, "\n");
+ HDfprintf(output, "rank %d: Block size=", rank);
+ recover_size_and_print((long_long)opts->blk_size, "\n");
HDfprintf(output, "rank %d: Block Pattern in Dataset=", rank);
if(opts->interleaved)
@@ -1055,15 +1075,16 @@ parse_command_line(int argc, char *argv[])
cl_opts = (struct options *)malloc(sizeof(struct options));
cl_opts->output_file = NULL;
- cl_opts->file_size = 64 * ONE_MB;
cl_opts->io_types = 0; /* will set default after parsing options */
cl_opts->num_dsets = 1;
cl_opts->num_files = 1;
+ cl_opts->num_bpp = 256 * ONE_KB;
cl_opts->num_iters = 1;
cl_opts->max_num_procs = comm_world_nprocs_g;
cl_opts->min_num_procs = 1;
cl_opts->max_xfer_size = 1 * ONE_MB;
cl_opts->min_xfer_size = 128 * ONE_KB;
+ cl_opts->blk_size = 128 * ONE_KB; /* Default to writing 128K per block */
cl_opts->interleaved = 0; /* Default to contiguous blocks in dataset */
cl_opts->collective = 0; /* Default to independent I/O access */
cl_opts->print_times = FALSE; /* Printing times is off by default */
@@ -1119,6 +1140,9 @@ parse_command_line(int argc, char *argv[])
/* the future "binary" option */
break;
#endif /* 0 */
+ case 'B':
+ cl_opts->blk_size = parse_size_directive(opt_arg);
+ break;
case 'c':
/* Turn on chunked HDF5 dataset creation */
cl_opts->h5_use_chunks = TRUE;
@@ -1187,8 +1211,8 @@ parse_command_line(int argc, char *argv[])
}
break;
- case 'f':
- cl_opts->file_size = parse_size_directive(opt_arg);
+ case 'e':
+ cl_opts->num_bpp = parse_size_directive(opt_arg);
break;
case 'F':
cl_opts->num_files = atoi(opt_arg);
@@ -1318,15 +1342,20 @@ usage(const char *prog)
#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:128K]\n");
printf(" -c, --chunk Create HDF5 datasets chunked [default: off]\n");
- printf(" -C, --collective Use collective I/O for MPI and HDF5 APIs [default: off (i.e. independent I/O)]\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(" -f S, --file-size=S Size of a single file [default: 64M]\n");
+ printf(" -e S, --num-bytes=S Number of bytes per process per dataset\n");
+ printf(" [default: 256K]\n");
printf(" -F N, --num-files=N Number of files [default: 1]\n");
printf(" -i, --num-iterations Number of iterations to perform [default: 1]\n");
- printf(" -I --interleaved Interleaved block I/O (see below for example)\n");
+ printf(" -I, --interleaved Interleaved block I/O (see below for example)\n");
printf(" [default: Contiguous block I/O]\n");
printf(" -n, --no-fill Don't write fill values to HDF5 dataset\n");
printf(" (Supported in HDF5 library v1.5 only)\n");
@@ -1348,7 +1377,7 @@ usage(const char *prog)
printf(" M - Megabyte (%d)\n", ONE_MB);
printf(" G - Gigabyte (%d)\n", ONE_GB);
printf("\n");
- printf(" Example: 37M = 37 Megabytes = %d bytes\n", 37*ONE_MB);
+ 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");
@@ -1357,24 +1386,50 @@ usage(const char *prog)
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(" For example, with a 4 process run,\n");
- printf(" Contiguous blocks are written to the file like so:\n");
- printf(" 1111222233334444\n");
- printf(" Interleaved blocks are written to the file like so:\n");
- printf(" 1234123412341234\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 - Everything and the kitchen sink\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);
}
}
generated by cgit v0.12 at 2024-11-03 07:47:54 (GMT)