IOR-3.4.0+dev: MPI Coordinated Test of Parallel I/O Began : Sat Oct 31 23:18:58 2020 Command line : ./ior -C -Q 1 -g -G 27 -k -e -o /tmp/gfarm-sugiharak/datafiles/2020.10.31-22.40.45/ior-hard/file -O stoneWallingStatusFile=/work/NBB/sugiharak/io500-sc20/results/2020.10.31-22.40.45/ior-hard.stonewall -O stoneWallingWearOut=1 -t 47008 -b 47008 -s 10000000 -r -R -a MPIIO Machine : Linux gnode08 TestID : 0 StartTime : Sat Oct 31 23:18:58 2020 Path : /tmp/gfarm-sugiharak/datafiles/2020.10.31-22.40.45/ior-hard/file FS : 27.8 TiB Used FS: 57.5% Inodes: 15.4 Mi Used Inodes: 100.0% Options: api : MPIIO apiVersion : (3.1) test filename : /tmp/gfarm-sugiharak/datafiles/2020.10.31-22.40.45/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 : 10 tasks : 20 clients per node : 2 repetitions : 1 xfersize : 47008 bytes blocksize : 47008 bytes aggregate filesize : 8.55 TiB Results: access bw(MiB/s) IOPS Latency(s) block(KiB) xfer(KiB) open(s) wr/rd(s) close(s) total(s) iter ------ --------- ---- ---------- ---------- --------- -------- -------- -------- -------- ---- stonewalling pairs accessed min: 4479707 max: 4479707 -- min data: 196.1 GiB mean data: 196.1 GiB time: 5879.4s WARNING: inconsistent file size by different tasks. WARNING: Expected aggregate file size = 9401600000000 WARNING: Stat() of aggregate file size = 4211640439968 WARNING: Using actual aggregate bytes moved = 4211641333120 read 676.17 15238 5880 45.91 45.91 55.07 5880 5.42 5940 0