IOR-3.3.0+dev: MPI Coordinated Test of Parallel I/O Began : Tue Jun 2 20:17:51 2020 Command line : /io500/io500-isc20/io500-app/bin/ior -r -R -a POSIX -t 32m --posix.odirect -v -b 6000000m -F -i 1 -C -Q 1 -g -G 27 -k -e -o ./datadir/2020.06.02-19.41.54-scr/ior_easy/ior_file_easy -O stoneWallingStatusFile=./datadir/2020.06.02-19.41.54-scr/ior_easy/stonewall Machine : Linux h09u02.int.janelia.org Start time skew across all tasks: 0.00 sec TestID : 0 StartTime : Tue Jun 2 20:17:51 2020 Path : /io500/io500-isc20/io500-app/datadir/2020.06.02-19.41.54-scr/ior_easy FS : 50.0 TiB Used FS: 64.5% Inodes: 858.3 Mi Used Inodes: 5.9% Participating tasks: 600 Using reorderTasks '-C' (useful to avoid read cache in client) Options: api : POSIX apiVersion : test filename : ./datadir/2020.06.02-19.41.54-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 : 10 tasks : 600 clients per node : 60 repetitions : 1 xfersize : 32 MiB blocksize : 5.72 TiB aggregate filesize : 3433.23 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 Jun 2 20:17:51 2020 WARNING: Expected aggregate file size = 3774873600000000. WARNING: Stat() of aggregate file size = 6321654988800. WARNING: Using actual aggregate bytes moved = 6321654988800. read 13267 414.62 0.002423 6144000000 32768 0.008634 454.39 0.002786 454.40 0 Max Read: 13267.48 MiB/sec (13911.96 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 13267.48 13267.48 13267.48 0.00 414.61 414.61 414.61 0.00 454.40435 NA NA 0 600 60 1 1 1 1 0 0 1 6291456000000 33554432 6028800.0 POSIX 0 Finished : Tue Jun 2 20:25:26 2020