IOR-3.1.0: MPI Coordinated Test of Parallel I/O ior WARNING: fsync() only available in POSIX/MMAP. Using value of 0. Began: Thu Jun 21 19:48:28 2018 Command line used: /var/opt/cray/dws/mounts/batch/5890895_striped_scratch/bin/ior -r -R -C -Q 1 -g -G 27 -k -e -t 47008 -b 47008 -s 125000 -o /var/opt/cray/dws/mounts/batch/5890895_striped_scratch/datafiles/io500.2018.06.21-18.59.50/ior_hard/IOR_file Machine: Linux nid00328 Test 0 started: Thu Jun 21 19:48:28 2018 Summary: api = MPIIO (version=3, subversion=1) test filename = /var/opt/cray/dws/mounts/batch/5890895_striped_scratch/datafiles/io500.2018.06.21-18.59.50/ior_hard/IOR_file access = single-shared-file ordering in a file = sequential offsets ordering inter file= constant task offsets = 1 clients = 8192 (8 per node) repetitions = 1 xfersize = 47008 bytes blocksize = 47008 bytes aggregate filesize = 44830.32 GiB access bw(MiB/s) block(KiB) xfer(KiB) open(s) wr/rd(s) close(s) total(s) iter ------ --------- ---------- --------- -------- -------- -------- -------- ---- read 402360 45.91 45.91 0.269398 113.61 0.212506 114.09 0 Max Read: 402360.20 MiB/sec (421905.25 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 aggsize API RefNum read 402360.20 402360.20 402360.20 0.00 8975179.69 8975179.69 8975179.69 0.00 114.09242 0 8192 8 1 0 1 1 0 0 125000 47008 47008 48136192000000 MPIIO 0 Finished: Thu Jun 21 19:50:23 2018