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 20:36:45 2018 Command line used: /cache/0/gz02/z30218/io-500-dev/bin/ior -w -C -Q 1 -g -G 27 -k -e -t 2048k -b 128g -F -o /cache/0/gz02/z30218/io-500-dev/datafiles/io500.2018.05.03-20.36.21/ior_easy/ior_file_easy Machine: Linux c0001.ofp Test 0 started: Thu May 3 20:36:45 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_easy/ior_file_easy access = file-per-process ordering in a file = sequential offsets ordering inter file= constant task offsets = 1 clients = 2048 (1 per node) repetitions = 1 xfersize = 2 MiB blocksize = 128 GiB aggregate filesize = 262144 GiB access bw(MiB/s) block(KiB) xfer(KiB) open(s) wr/rd(s) close(s) total(s) iter ------ --------- ---------- --------- -------- -------- -------- -------- ---- write 762634 134217728 2048.00 0.177675 350.31 1.50 351.98 0 Max Write: 762634.11 MiB/sec (799679.83 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 762634.11 762634.11 762634.11 0.00 351.98459 0 2048 1 1 1 1 1 0 0 1 137438953472 2097152 281474976710656 MPIIO 0 Finished: Thu May 3 20:42:37 2018