IOR-3.3.0+dev: MPI Coordinated Test of Parallel I/O
Began               : Mon Nov 11 19:03:16 2019
Command line        : /vol7/io500_20190930/bin/ior -r -R -s 304000 -a MPIIO -U /vol7/io500_20190930/mpio -H -i 1 -C -Q 1 -g -G 27 -k -e -t 47008 -b 47008 -o /vol7/io500_20190930/datafiles/io500.2019.11.11-18.18.04/ior_hard/IOR_file -O stoneWallingStatusFile=/vol7/io500_20190930/datafiles/io500.2019.11.11-18.18.04/ior_hard/stonewall
Machine             : Linux node1
TestID              : 0
StartTime           : Mon Nov 11 19:03:16 2019
Path                : /vol7/io500_20190930/datafiles/io500.2019.11.11-18.18.04/ior_hard
FS                  : 818.4 TiB   Used FS: 5.1%   Inodes: 3344.4 Mi   Used Inodes: 1.3%

Options: 
api                 : MPIIO
apiVersion          : (3.1)
test filename       : /vol7/io500_20190930/datafiles/io500.2019.11.11-18.18.04/ior_hard/IOR_file
access              : single-shared-file
type                : independent
segments            : 304000
ordering in a file  : sequential
ordering inter file : constant task offset
task offset         : 1
tasks               : 160
clients per node    : 16
repetitions         : 1
xfersize            : 47008 bytes
blocksize           : 47008 bytes
aggregate filesize  : 2.08 TiB

Results: 

access    bw(MiB/s)  block(KiB) xfer(KiB)  open(s)    wr/rd(s)   close(s)   total(s) iter
------    ---------  ---------- ---------  --------   --------   --------   -------- ----

hints passed to MPI_File_open() {
	romio_ds_write = disable
	romio_cb_read = disable
}

hints returned from opened file {
	direct_read = false
	direct_write = false
	romio_lustre_co_ratio = 1
	romio_lustre_coll_threshold = 0
	romio_lustre_ds_in_coll = enable
	cb_buffer_size = 16777216
	romio_cb_read = disable
	romio_cb_write = automatic
	cb_nodes = 10
	romio_no_indep_rw = false
	romio_cb_pfr = disable
	romio_cb_fr_types = aar
	romio_cb_fr_alignment = 1
	romio_cb_ds_threshold = 0
	romio_cb_alltoall = automatic
	ind_rd_buffer_size = 4194304
	ind_wr_buffer_size = 524288
	romio_ds_read = automatic
	romio_ds_write = disable
	cb_config_list = *:1
	romio_filesystem_type = LUSTRE:
	romio_aggregator_list = 0 16 32 48 64 80 96 112 128 144 
	striping_unit = 8388608
	striping_factor = 568
	romio_lustre_start_iodevice = 0
}
read      13592      45.91      45.91      0.028505   160.38     0.020857   160.43     0   
Max Read:  13591.56 MiB/sec (14251.78 MB/sec)

Summary of all tests:
Operation   Max(MiB)   Min(MiB)  Mean(MiB)     StdDev   Max(OPs)   Min(OPs)  Mean(OPs)     StdDev    Mean(s) Stonewall(s) Stonewall(MiB) Test# #Tasks tPN reps fPP reord reordoff reordrand seed segcnt   blksiz    xsize aggs(MiB)   API RefNum
read        13591.56   13591.56   13591.56       0.00  303177.81  303177.81  303177.81       0.00  160.43390         NA            NA     0    160  16    1   0     1        1         0    0 304000    47008    47008 2180547.0 MPIIO      0
Finished            : Mon Nov 11 19:05:57 2019