IOR-3.1.0: MPI Coordinated Test of Parallel I/O ior WARNING: fsync() only available in POSIX/MMAP. Using value of 0. Began: Sat May 12 16:47:27 2018 Command line used: /home/dkrz/k202079/work/io-500/io-500-dev/bin/ior -w -C -Q 1 -g -G 27 -k -e -t 2048k -b 25g -F -a MPIIO -o /mnt/lustre02/ior-test/io500/datafiles//ior_easy/ior_file_easy Machine: Linux m20036 Test 0 started: Sat May 12 16:47:27 2018 Summary: api = MPIIO (version=2, subversion=1) test filename = /mnt/lustre02/ior-test/io500/datafiles//ior_easy/ior_file_easy access = file-per-process ordering in a file = sequential offsets ordering inter file= constant task offsets = 1 clients = 1200 (12 per node) repetitions = 1 xfersize = 2 MiB blocksize = 25 GiB aggregate filesize = 30000 GiB access bw(MiB/s) block(KiB) xfer(KiB) open(s) wr/rd(s) close(s) total(s) iter ------ --------- ---------- --------- -------- -------- -------- -------- ---- write 90594 26214400 2048.00 0.197124 338.82 0.190098 339.09 0 Max Write: 90594.31 MiB/sec (94995.02 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 90594.31 90594.31 90594.31 0.00 45297.16 45297.16 45297.16 0.00 339.09414 0 1200 12 1 1 1 1 0 0 1 26843545600 2097152 32212254720000 MPIIO 0 Finished: Sat May 12 16:53:09 2018