IOR-3.3.0+dev: MPI Coordinated Test of Parallel I/O Began : Thu Jul 2 12:34:46 2020 Command line : ./ior -v -C -Q 1 -g -G 271 -k -e -o /magnus/io500/datafiles/2020.07.02-12.32.35-app/ior-easy/ior_file_easy -O stoneWallingStatusFile=/magnus/io500/datafiles/2020.07.02-12.32.35-app/ior-easy/stonewall -t 4m -b 9920000m -F -w -D 300 -O stoneWallingWearOut=1 -a POSIX Machine : Linux mg005 Start time skew across all tasks: 31.58 sec TestID : 0 StartTime : Thu Jul 2 12:34:46 2020 Path : /magnus/io500/datafiles/2020.07.02-12.32.35-app/ior-easy FS : 3659.2 TiB Used FS: 44.5% Inodes: 266.5 Mi Used Inodes: 13.7% 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-easy/ior_file_easy access : file-per-process type : independent segments : 1 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 : 4 MiB blocksize : 9.46 TiB aggregate filesize : 908.20 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 12:34:46 2020 0: stonewalling pairs accessed: 5766 stonewalling pairs accessed min: 5610 max: 17327 -- min data: 21.9 GiB mean data: 38.7 GiB time: 300.2s WARNING: Expected aggregate file size = 998579896320000. WARNING: Stat() of aggregate file size = 6976771719168. WARNING: Using actual aggregate bytes moved = 6976771719168. WARNING: maybe caused by deadlineForStonewalling write 9601 2400.57 0.000279 10158080000 4096 0.120127 692.92 0.001550 693.04 0 Max Write: 9600.59 MiB/sec (10066.95 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 9600.59 9600.59 9600.59 0.00 2400.15 2400.15 2400.15 0.00 693.03725 300.19 12677.48 0 96 12 1 1 1 1 0 0 1 10401873920000 4194304 6653568.0 POSIX 0 Finished : Thu Jul 2 12:46:19 2020