IOR-3.3.0+dev: MPI Coordinated Test of Parallel I/O
Began               : Thu May 23 22:11:29 2019
Command line        : /ai/io-500-dev/bin/ior -w -s 280000 -i 1 -C -Q 1 -g -G 27 -k -e -t 47008 -b 47008 -o /ai/io-500-dev/datafiles/io500.2019.05.23-22.00.12/ior_hard/IOR_file -O stoneWallingStatusFile=/ai/io-500-dev/datafiles/io500.2019.05.23-22.00.12/ior_hard/stonewall -O stoneWallingWearOut=1 -D 300
Machine             : Linux bear-pg0305u03a.bear.cluster
TestID              : 0
StartTime           : Thu May 23 22:11:29 2019
Path                : /ai/io-500-dev/datafiles/io500.2019.05.23-22.00.12/ior_hard
FS                  : 109.5 TiB   Used FS: 19.6%   Inodes: 147.6 Mi   Used Inodes: 43.0%

Options: 
api                 : POSIX
apiVersion          : 
test filename       : /ai/io-500-dev/datafiles/io500.2019.05.23-22.00.12/ior_hard/IOR_file
access              : single-shared-file
type                : independent
segments            : 280000
ordering in a file  : sequential
ordering inter file : constant task offset
task offset         : 1
tasks               : 20
clients per node    : 2
repetitions         : 1
xfersize            : 47008 bytes
blocksize           : 47008 bytes
aggregate filesize  : 245.17 GiB
stonewallingTime    : 300
stoneWallingWearOut : 1

Results: 

access    bw(MiB/s)  block(KiB) xfer(KiB)  open(s)    wr/rd(s)   close(s)   total(s)   iter
------    ---------  ---------- ---------  --------   --------   --------   --------   ----
stonewalling pairs accessed min: 217497 max: 280000 -- min data: 9.5 GiB mean data: 10.5 GiB time: 300.0s
write     687.20     45.91      45.91      0.010299   365.31     0.000278   365.32     0   
Max Write: 687.20 MiB/sec (720.59 MB/sec)

Summary of all tests:
Operation   Max(MiB)   Min(MiB)  Mean(MiB)     StdDev   Max(OPs)   Min(OPs)  Mean(OPs)     StdDev    Mean(s) Test# #Tasks tPN reps fPP reord reordoff reordrand seed segcnt   blksiz    xsize aggs(MiB)   API RefNum
write         687.20     687.20     687.20       0.00   15328.99   15328.99   15328.99       0.00  365.32081     0     20   2    1   0     1        1         0    0 280000    47008    47008  251049.8 POSIX      0
Finished            : Thu May 23 22:17:34 2019