IOR-3.3.0+dev: MPI Coordinated Test of Parallel I/O Began : Thu Jul 2 12:55:46 2020 Command line : ./ior -v -C -Q 1 -g -G 27 -k -e -o /magnus/io500/datafiles/2020.07.02-12.32.35-app/ior-hard/file -O stoneWallingStatusFile=/magnus/io500/datafiles/2020.07.02-12.32.35-app/ior-hard/stonewall -O stoneWallingWearOut=1 -t 47008 -b 47008 -s 10000000 -w -D 300 -a POSIX Machine : Linux mg005 Start time skew across all tasks: 31.58 sec TestID : 0 StartTime : Thu Jul 2 12:55:46 2020 Path : /magnus/io500/datafiles/2020.07.02-12.32.35-app/ior-hard FS : 3659.2 TiB Used FS: 44.7% Inodes: 266.5 Mi Used Inodes: 29.7% Participating tasks: 96 Using reorderTasks '-C' (useful to avoid read cache in client) Options: api : POSIX apiVersion : test filename : /magnus/io500/datafiles/2020.07.02-12.32.35-app/ior-hard/file access : single-shared-file type : independent segments : 10000000 ordering in a file : sequential ordering inter file : constant task offset task offset : 1 nodes : 8 tasks : 96 clients per node : 12 repetitions : 1 xfersize : 47008 bytes blocksize : 47008 bytes aggregate filesize : 41.04 TiB stonewallingTime : 300 stoneWallingWearOut : 1 Results: access bw(MiB/s) IOPS Latency(s) block(KiB) xfer(KiB) open(s) wr/rd(s) close(s) total(s) iter ------ --------- ---- ---------- ---------- --------- -------- -------- -------- -------- ---- Commencing write performance test: Thu Jul 2 12:55:46 2020 0: stonewalling pairs accessed: 55008 stonewalling pairs accessed min: 55008 max: 55094 -- min data: 2.4 GiB mean data: 2.4 GiB time: 300.0s WARNING: Expected aggregate file size = 45127680000000. WARNING: Stat() of aggregate file size = 248626440192. WARNING: Using actual aggregate bytes moved = 248626440192. WARNING: maybe caused by deadlineForStonewalling write 789.01 17602 300.46 45.91 45.91 0.021906 300.48 0.013278 300.51 0 Max Write: 789.01 MiB/sec (827.34 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 write 789.01 789.01 789.01 0.00 17599.96 17599.96 17599.96 0.00 300.51335 300.03 789.69 0 96 12 1 0 1 1 0 0 10000000 47008 47008 237108.7 POSIX 0 Finished : Thu Jul 2 13:00:47 2020