IOR-3.3.0+dev: MPI Coordinated Test of Parallel I/O Began : Sat Jul 11 08:27:16 2020 Command line : /opt/basis/rsc/io500/io500-app/bin/ior -r -R -a POSIX -t 2m --posix.odirect -v -b 9920000m -F -i 1 -C -Q 1 -g -G 27 -k -e -o /lustre/iospb/io500-2020spring/datafiles/2020.07.11-05.26.49-scr/ior_easy/ior_file_easy -O stoneWallingStatusFile=/lustre/iospb/io500-2020spring/datafiles/2020.07.11-05.26.49-scr/ior_easy/stonewall Machine : Linux n06p001 Start time skew across all tasks: 983255.50 sec TestID : 0 StartTime : Sat Jul 11 08:27:16 2020 Path : /lustre/iospb/io500-2020spring/datafiles/2020.07.11-05.26.49-scr/ior_easy FS : 196.3 TiB Used FS: 23.4% Inodes: 905.7 Mi Used Inodes: 19.0% Participating tasks: 944 Using reorderTasks '-C' (useful to avoid read cache in client) Options: api : POSIX apiVersion : test filename : /lustre/iospb/io500-2020spring/datafiles/2020.07.11-05.26.49-scr/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 : 59 tasks : 944 clients per node : 16 repetitions : 1 xfersize : 2 MiB blocksize : 9.46 TiB aggregate filesize : 8930.66 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: Sat Jul 11 08:27:16 2020 WARNING: Expected aggregate file size = 9819368980480000. WARNING: Stat() of aggregate file size = 49211668168704. WARNING: Using actual aggregate bytes moved = 49211668168704. read 201908 100999 0.000047 10158080000 2048.00 0.063228 232.34 0.088618 232.44 0 Max Read: 201908.10 MiB/sec (211715.99 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 201908.10 201908.10 201908.10 0.00 100954.05 100954.05 100954.05 0.00 232.44191 NA NA 0 944 16 1 1 1 1 0 0 1 10401873920000 2097152 46931904.0 POSIX 0 Finished : Sat Jul 11 08:31:09 2020