IOR-3.3.0+dev: MPI Coordinated Test of Parallel I/O
Began               : Mon Jul  6 21:43:56 2020
Command line        : /opt/software/rsc/io500-2020-spring/io500-app/bin/ior -r -R -s 110000 -a MPIIO --posix.odirect -v -i 1 -C -Q 1 -g -G 27 -k -e -t 47008 -b 47008 -o /lustre/stor1/io500/2020.07.06-20.43.13-scr/ior_hard/IOR_file -O stoneWallingStatusFile=/lustre/stor1/io500/2020.07.06-20.43.13-scr/ior_hard/stonewall
Machine             : Linux n02p001.gvr.local
Start time skew across all tasks: 132605.10 sec
TestID              : 0
StartTime           : Mon Jul  6 21:43:56 2020
Path                : /lustre/stor1/io500/2020.07.06-20.43.13-scr/ior_hard
FS                  : 259.3 TiB   Used FS: 28.0%   Inodes: 1204.8 Mi   Used Inodes: 16.0%
Participating tasks: 800
Using reorderTasks '-C' (useful to avoid read cache in client)

Options: 
api                 : MPIIO
apiVersion          : (3.1)
test filename       : /lustre/stor1/io500/2020.07.06-20.43.13-scr/ior_hard/IOR_file
access              : single-shared-file
type                : independent
segments            : 110000
ordering in a file  : sequential
ordering inter file : constant task offset
task offset         : 1
nodes               : 50
tasks               : 800
clients per node    : 16
repetitions         : 1
xfersize            : 47008 bytes
blocksize           : 47008 bytes
aggregate filesize  : 3.76 TiB

Results: 

access    bw(MiB/s)  IOPS       Latency(s)  block(KiB) xfer(KiB)  open(s)    wr/rd(s)   close(s)   total(s)   iter
------    ---------  ----       ----------  ---------- ---------  --------   --------   --------   --------   ----
Commencing read performance test: Mon Jul  6 21:44:56 2020

read      11451      308850     284.23      45.91      45.91      59.06      284.93     0.836845   344.51     0   
Max Read:  11451.14 MiB/sec (12007.39 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        11451.14   11451.14   11451.14       0.00  255432.95  255432.95  255432.95       0.00  344.51311         NA            NA     0    800  16    1   0     1        1         0    0 110000    47008    47008 3945068.2 MPIIO      0
Finished            : Mon Jul  6 21:49:50 2020