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 Aug 20 18:34:02 2018 Command line used: /var/opt/cray/dws/mounts/batch/6335677_striped_scratch/bin/ior -w -C -Q 1 -g -G 27 -k -e -t 2m -b 192616m -F -o /var/opt/cray/dws/mounts/batch/6335677_striped_scratch/datafiles/io500.2018.08.20-18.33.55/ior_easy/ior_file_easy Machine: Linux nid00143 Test 0 started: Mon Aug 20 18:34:02 2018 Summary: api = MPIIO (version=3, subversion=1) test filename = /var/opt/cray/dws/mounts/batch/6335677_striped_scratch/datafiles/io500.2018.08.20-18.33.55/ior_easy/ior_file_easy access = file-per-process ordering in a file = sequential offsets ordering inter file= constant task offsets = 1 clients = 80 (8 per node) repetitions = 1 xfersize = 2 MiB blocksize = 188.10 GiB aggregate filesize = 15048.12 GiB access bw(MiB/s) block(KiB) xfer(KiB) open(s) wr/rd(s) close(s) total(s) iter ------ --------- ---------- --------- -------- -------- -------- -------- ---- write 42431 197238784 2048.00 0.050585 363.09 0.023651 363.16 0 Max Write: 42430.99 MiB/sec (44492.11 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 write 42430.99 42430.99 42430.99 0.00 21215.49 21215.49 21215.49 0.00 363.16102 0 80 8 1 1 1 1 0 0 1 201972514816 2097152 16157801185280 MPIIO 0 Finished: Mon Aug 20 18:40:05 2018