IOR-3.3.0+dev: MPI Coordinated Test of Parallel I/O Began : Tue Jul 14 01:43:10 2020 Command line : /home/vef/git/io500-app/bin/ior -r -R -s 10000000 -a POSIX -v -i 1 -C -Q 1 -g -G 27 -k -e -t 47008 -b 47008 -o /tmp/vef_mountdir/io500-scr/ior_hard/IOR_file -O stoneWallingStatusFile=/tmp/vef_mountdir/io500-scr/ior_hard/stonewall Machine : Linux x0003.mogon Start time skew across all tasks: 243197.02 sec TestID : 0 StartTime : Tue Jul 14 01:43:10 2020 Path : /tmp/vef_mountdir/io500-scr/ior_hard FS : 83.2 TiB Used FS: 25.8% Inodes: 0.0 Mi Used Inodes: -nan% Participating tasks: 160 Using reorderTasks '-C' (useful to avoid read cache in client) Options: api : POSIX apiVersion : test filename : /tmp/vef_mountdir/io500-scr/ior_hard/IOR_file access : single-shared-file type : independent segments : 10000000 ordering in a file : sequential ordering inter file : constant task offset task offset : 1 nodes : 10 tasks : 160 clients per node : 16 repetitions : 1 xfersize : 47008 bytes blocksize : 47008 bytes aggregate filesize : 68.41 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: Tue Jul 14 01:43:10 2020 WARNING: Expected aggregate file size = 75212800000000. WARNING: Stat() of aggregate file size = 924621035520. WARNING: Using actual aggregate bytes moved = 924621035520. read 4567 101984 192.87 45.91 45.91 0.202885 192.87 0.000255 193.07 0 Max Read: 4567.19 MiB/sec (4789.05 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 4567.19 4567.19 4567.19 0.00 101877.27 101877.27 101877.27 0.00 193.06995 NA NA 0 160 16 1 0 1 1 0 0 10000000 47008 47008 881787.3 POSIX 0 Finished : Tue Jul 14 01:46:23 2020