IOR-3.1.0: MPI Coordinated Test of Parallel I/O ior WARNING: fsync() only available in POSIX/MMAP. Using value of 0. Began: Mon Jun 18 15:22:45 2018 Command line used: /home/users/kunkel/io-500-dev/bin/ior -r -R -C -Q 1 -g -G 27 -k -e -t 47008 -b 47008 -s 7000 -o /home/users/kunkel/io-500-dev/datafiles/io500.2018.06.18-13.30.38/ior_hard/IOR_file Machine: Linux host168.jc.rl.ac.uk Test 0 started: Mon Jun 18 15:22:45 2018 Summary: api = MPIIO (version=3, subversion=1) test filename = /home/users/kunkel/io-500-dev/datafiles/io500.2018.06.18-13.30.38/ior_hard/IOR_file access = single-shared-file ordering in a file = sequential offsets ordering inter file= constant task offsets = 1 clients = 128 (2 per node) repetitions = 1 xfersize = 47008 bytes blocksize = 47008 bytes aggregate filesize = 39.23 GiB access bw(MiB/s) block(KiB) xfer(KiB) open(s) wr/rd(s) close(s) total(s) iter ------ --------- ---------- --------- -------- -------- -------- -------- ---- read 51.23 45.91 45.91 0.260798 783.86 0.006161 784.12 0 Max Read: 51.23 MiB/sec (53.71 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 51.23 51.23 51.23 0.00 1142.68 1142.68 1142.68 0.00 784.12326 0 128 2 1 0 1 1 0 0 7000 47008 47008 42119168000 MPIIO 0 Finished: Mon Jun 18 15:35:49 2018