IOR-3.3.0+dev: MPI Coordinated Test of Parallel I/O Began : Wed Jun 12 00:42:53 2019 Command line : /scratch/vvsteg/io500/bin/ior -w -t 2048k -b 4000m -F -i 1 -C -Q 1 -g -G 27 -k -e -o /scratch/vvsteg/io500/datafiles/io500.2019.06.12-00.42.36/ior_easy/ior_file_easy -O stoneWallingStatusFile=/scratch/vvsteg/io500/datafiles/io500.2019.06.12-00.42.36/ior_easy/stonewall -O stoneWallingWearOut=1 -D 300 Machine : Linux host1 TestID : 0 StartTime : Wed Jun 12 00:42:53 2019 Path : /mnt/beegfs/scratch/vvsteg/io500/datafiles/io500.2019.06.12-00.42.36/ior_easy FS : 23.6 TiB Used FS: 31.1% Inodes: 0.0 Mi Used Inodes: -nan% Options: api : POSIX apiVersion : test filename : /scratch/vvsteg/io500/datafiles/io500.2019.06.12-00.42.36/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 tasks : 320 clients per node : 32 repetitions : 1 xfersize : 2 MiB blocksize : 3.91 GiB aggregate filesize : 1.22 TiB stonewallingTime : 300 stoneWallingWearOut : 1 Results: access bw(MiB/s) block(KiB) xfer(KiB) open(s) wr/rd(s) close(s) total(s) iter ------ --------- ---------- --------- -------- -------- -------- -------- ---- stonewalling pairs accessed min: 941 max: 2000 -- min data: 1.8 GiB mean data: 2.7 GiB time: 301.5s write 1660.18 4096000 2048.00 0.024759 770.95 0.029831 771.00 0 Max Write: 1660.18 MiB/sec (1740.83 MB/sec) Summary of all tests: Operation Max(MiB) Min(MiB) Mean(MiB) StdDev Max(OPs) Min(OPs) Mean(OPs) StdDev Mean(s) Test# #Tasks tPN reps fPP reord reordoff reordrand seed segcnt blksiz xsize aggs(MiB) API RefNum write 1660.18 1660.18 1660.18 0.00 830.09 830.09 830.09 0.00 771.00062 0 320 32 1 1 1 1 0 0 1 4194304000 2097152 1280000.0 POSIX 0 Finished : Wed Jun 12 00:55:44 2019