IOR-3.1.0: MPI Coordinated Test of Parallel I/O ior WARNING: fsync() only available in POSIX. Using value of 0. Began: Thu May 3 20:48:12 2018 Command line used: /cache/0/gz02/z30218/io-500-dev/bin/ior -w -C -Q 1 -g -G 27 -k -e -t 47008 -b 47008 -s 2400000 -o /cache/0/gz02/z30218/io-500-dev/datafiles/io500.2018.05.03-20.36.21/ior_hard/IOR_file Machine: Linux c0001.ofp Test 0 started: Thu May 3 20:48:12 2018 Summary: api = MPIIO (version=3, subversion=1) test filename = /cache/0/gz02/z30218/io-500-dev/datafiles/io500.2018.05.03-20.36.21/ior_hard/IOR_file access = single-shared-file ordering in a file = sequential offsets ordering inter file= constant task offsets = 1 clients = 2048 (1 per node) repetitions = 1 xfersize = 47008 bytes blocksize = 47008 bytes aggregate filesize = 215185.55 GiB access bw(MiB/s) block(KiB) xfer(KiB) open(s) wr/rd(s) close(s) total(s) iter ------ --------- ---------- --------- -------- -------- -------- -------- ---- write 709364 45.91 45.91 0.139181 310.33 0.156248 310.63 0 Max Write: 709364.13 MiB/sec (743822.20 MB/sec) Summary of all tests: Operation Max(MiB) Min(MiB) Mean(MiB) StdDev Mean(s) Test# #Tasks tPN reps fPP reord reordoff reordrand seed segcnt blksiz xsize aggsize API RefNum write 709364.13 709364.13 709364.13 0.00 310.63031 0 2048 1 1 0 1 1 0 0 2400000 47008 47008 231053721600000 MPIIO 0 Finished: Thu May 3 20:53:23 2018