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 10:58:55 2018 Command line used: /home/users/kunkel/io-500-dev/bin/ior -r -R -C -Q 1 -g -G 27 -k -e -t 2048k -b 20g -F -o /home/users/kunkel/io-500-dev/datafiles/io500.2018.06.18-10.09.35/ior_easy/ior_file_easy Machine: Linux host162.jc.rl.ac.uk Test 0 started: Mon Jun 18 10:58:55 2018 Summary: api = MPIIO (version=3, subversion=1) test filename = /home/users/kunkel/io-500-dev/datafiles/io500.2018.06.18-10.09.35/ior_easy/ior_file_easy access = file-per-process ordering in a file = sequential offsets ordering inter file= constant task offsets = 1 clients = 64 (4 per node) repetitions = 1 xfersize = 2 MiB blocksize = 20 GiB aggregate filesize = 1280 GiB access bw(MiB/s) block(KiB) xfer(KiB) open(s) wr/rd(s) close(s) total(s) iter ------ --------- ---------- --------- -------- -------- -------- -------- ---- read 969.61 20971520 2048.00 0.107804 1351.69 0.059434 1351.80 0 Max Read: 969.61 MiB/sec (1016.71 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 969.61 969.61 969.61 0.00 484.81 484.81 484.81 0.00 1351.79573 0 64 4 1 1 1 1 0 0 1 21474836480 2097152 1374389534720 MPIIO 0 Finished: Mon Jun 18 11:21:27 2018