+ /opt/ddn/mvapich/bin/mpiexec -ppn 6 -np 96 -genv MV2_NUM_HCAS 1 -genv MV2_CPU_BINDING_LEVEL core -genv MV2_CPU_BINDING_POLICY scatter --hosts isc17-c01,isc17-c02,isc17-c03,isc17-c04,isc17-c05,isc17-c06,isc17-c07,isc17-c08,isc17-c09,isc17-c11,isc17-c12,isc17-c13,isc17-c14,isc17-c15,isc17-c18,isc17-c22 /esfs/jtacquaviva/software/install/ior/git-ddn/bin/ior -i 3 -s 1 -t 1048576 -b 23530045440 -D 120 -a MPIIO -e -g -z -k -o /esfs/jtacquaviva/ioperf/file_write -w + tee -a ./output/COUNT:1#NN:16#PPN:6#API:MPIIO#T:1048576.txt IOR-3.0.1: MPI Coordinated Test of Parallel I/O ior WARNING: fsync() only available in POSIX. Using value of 0. Began: Tue Oct 23 09:09:04 2018 Command line used: /esfs/jtacquaviva/software/install/ior/git-ddn/bin/ior -i 3 -s 1 -t 1048576 -b 23530045440 -D 120 -a MPIIO -e -g -z -k -o /esfs/jtacquaviva/ioperf/file_write -w Machine: Linux isc17-c01 Test 0 started: Tue Oct 23 09:09:04 2018 Summary: api = MPIIO (version=3, subversion=0) test filename = /esfs/jtacquaviva/ioperf/file_write access = single-shared-file ordering in a file = random offsets ordering inter file= no tasks offsets clients = 96 (6 per node) repetitions = 3 xfersize = 1 MiB blocksize = 21.91 GiB aggregate filesize = 2103.75 GiB Using stonewalling = 120 second(s) access bw(MiB/s) block(KiB) xfer(KiB) open(s) wr/rd(s) close(s) total(s) iter ------ --------- ---------- --------- -------- -------- -------- -------- ---- WARNING: Expected aggregate file size = 2258884362240. WARNING: Stat() of aggregate file size = 2258880167936. WARNING: Using actual aggregate bytes moved = 510574723072. write 4039 22978560 1024.00 0.357625 120.21 0.012212 120.55 0 WARNING: Expected aggregate file size = 2258884362240. WARNING: Stat() of aggregate file size = 2258882265088. WARNING: Using actual aggregate bytes moved = 505900171264. write 4012 22978560 1024.00 0.098760 120.17 0.011034 120.26 1 WARNING: Expected aggregate file size = 2258884362240. WARNING: Stat() of aggregate file size = 2258880167936. WARNING: Using actual aggregate bytes moved = 473096519680. write 3752 22978560 1024.00 0.058560 120.20 0.011193 120.25 2 Max Write: 4039.02 MiB/sec (4235.22 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 4039.02 3752.17 3934.32 129.28 120.35379 0 96 6 3 0 0 1 0 0 1 23530045440 1048576 510574723072 MPIIO 0 Finished: Tue Oct 23 09:15:12 2018