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 14:57:43 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/io500.2018.06.18-13.30.38/ior_easy/ior_file_easy Machine: Linux host168.jc.rl.ac.uk Test 0 started: Mon Jun 18 14:57:43 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_easy/ior_file_easy access = file-per-process ordering in a file = sequential offsets ordering inter file= constant task offsets = 1 clients = 128 (2 per node) repetitions = 1 xfersize = 2 MiB blocksize = 20 GiB aggregate filesize = 2560 GiB access bw(MiB/s) block(KiB) xfer(KiB) open(s) wr/rd(s) close(s) total(s) iter ------ --------- ---------- --------- -------- -------- -------- -------- ---- read 1842.38 20971520 2048.00 0.274555 1422.58 0.002902 1422.86 0 Max Read: 1842.38 MiB/sec (1931.87 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 1842.38 1842.38 1842.38 0.00 921.19 921.19 921.19 0.00 1422.85774 0 128 2 1 1 1 1 0 0 1 21474836480 2097152 2748779069440 MPIIO 0 Finished: Mon Jun 18 15:21:26 2018